Nos publications

[hal-05168055] Human contributions to global soundscapes are less predictable than the acoustic rhythms of wildlife

Across the world, human (anthropophonic) sounds add to sounds of biological (biophonic) and geophysical (geophonic) origin, with human contributions including both speech and technophony (sounds of technological devices). To characterize society’s contribution to the global soundscapes, we used passive acoustic recorders at 139 sites across 6 continents, sampling both urban green spaces and nearby pristine sites continuously for 3 years in a paired design. Recordings were characterized by bird species richness and by 14 complementary acoustic indices. By relating each index to seasonal, diurnal, climatic and anthropogenic factors, we show here that latitude, time of day and day of year each predict a substantial proportion of variation in key metrics of biophony—whereas anthropophony (speech and traffic) show less predictable patterns. Compared to pristine sites, the soundscape of urban green spaces is more dominated by technophony and less diverse in terms of acoustic energy across frequencies and time steps, with less instances of quiet. We conclude that the global soundscape is formed from a highly predictable rhythm in biophony, with added noise from geophony and anthropophony. At urban sites, animals experience an increasingly noisy background of sound, which poses challenges to efficient communication.

ano.nymous@ccsd.cnrs.fr.invalid (Panu Somervuo) 09 Oct 2025

https://univ-rennes.hal.science/hal-05168055v1

[hal-05057758] Exploring the taxonomic status of the Palearctic cone weevil, Pissodes validirostris, inferred from morphometric and molecular data

The Scots pine cone weevil, Pissodes validirostris Gyll. (Coleoptera: Curculionidae) widely distributed from Europe, across to North-Eastern China, consumes the cones of Mediterranean pines, as well those of the sylvestris section. The use of multiple host pine species with limited and patchy distributions, combined with low dispersal rates, likely contributed to significant genetic and morphological variation among P. validirostris populations in its native range. P. validirostris is being considered as a biological control agent for wilding pines in the southern hemisphere and for this programme to proceed, elucidating its intraspecific variability is necessary. This study aimed to explore the phylogeography of P. validirostris in its native range in Europe using mitochondrial and nuclear genetic markers as well as morphological characters. The integrative taxonomic analysis revealed high genetic structuring in P. validirostris populations, identifying three main phylogeographic clades: Clade A (Iberian Peninsula, associated with Pinus pinaster and Pinus halepensis ), Clade B (Central Europe), and Clade C (Northern and Eastern Europe), both associated with Pinus species of the sylvestris section. The morphometric data showed that adults of the Iberic Peninsula clade were significantly larger than those of the two others. When compared to other Nearctic and Palearctic congeneric species, P. validirostris formed a monophyletic group, likely consisting of different evolutionary lineages within the sampled distribution. The findings highlight the necessity of genetic confirmation for insect taxonomy across wide distributions or multiple host trees. Clarifying whether host specificity or geography drives P. validirostris population structuring will facilitate the selection of a specific clade for wilding pine biological control.

ano.nymous@ccsd.cnrs.fr.invalid (Coralie Bertheau) 15 Jul 2025

https://hal.science/hal-05057758v1

[hal-03846951] A large-scale dataset reveals taxonomic and functional specificities of wild bee communities in urban habitats of Western Europe

Wild bees are declining, mainly due to the expansion of urban habitats that have led to land-use changes. Effects of urbanization on wild bee communities are still unclear, as shown by contrasting reports on their species and functional diversities in urban habitats. To address this current controversy, we built a large dataset, merging 16 surveys carried out in 3 countries of Western Europe during the past decades, and tested whether urbanization influences local wild bee taxonomic and functional community composition. These surveys encompassed a range of urbanization levels, that were quantified using two complementary metrics: the proportion of impervious surfaces and the human population density. Urban expansion, when measured as a proportion of impervious surfaces, but not as human population density, was significantly and negatively correlated with wild bee community species richness. Taxonomic dissimilarity of the bee community was independent of both urbanization metrics. However, occurrence rates of functional traits revealed significant differences between lightly and highly urbanized communities, for both urbanization metrics. With higher human population density, probabilities of occurrence of above-ground nesters, generalist and small species increased. With higher soil sealing, probabilities of occurrence of above-ground nesters, generalists and social bees increased as well. Overall, these results, based on a large European dataset, suggest that urbanization can have negative impacts on wild bee diversity. They further identify some traits favored in urban environments, showing that several wild bee species can thrive in cities.

ano.nymous@ccsd.cnrs.fr.invalid (Arthur Fauviau) 10 Nov 2022

https://hal.science/hal-03846951v1

[anses-04608634] Avis de l'Anses relatif à « la catégorisation de Euplatypus hintzi »

Dans le cadre de la surveillance des organismes réglementés ou émergents (SORE), un dispositif de piégeage a été déployé par la DGAL1 en 2021 avec l’appui de l’INRAE et de l’ONF2. L’objectif de ce dispositif est d’effectuer une surveillance passive dans les sites d’entrée potentiels (ports, aéroports, marché d’intérêt national (MIN)) des organismes réglementés ou émergents (SORE). Ce piégeage est qualifié de « large spectre » car il peut concerner plusieurs filières de production suivies dans le cadre de la SORE (forêts, jardins et espaces verts et infrastructures (JEVI), arboriculture fruitière) en ciblant cependant majoritairement les insectes coléoptères ravageurs des ligneux. Les principes de la surveillance mise en œuvre s’appuient sur les résultats précédemment acquis dans le cadre du projet PORTRAP, utilisant des pièges génériques multi-composés pour la détection précoce d’insectes exotiques xylophages dans les sites potentiels d’entrée sur le territoire national. Les pièges ont été disposés sur 13 sites (7 ports maritimes, 1 port fluvial, 4 aéroports et 1 marché national) dispersés sur le territoire (France métropolitaine continentale). Au total 9279 individus appartenant à 110 espèces différentes ont été capturés. Aucune espèce d’insecte de quarantaine prioritaire n’a été piégée. En revanche, la présence d’individus appartenant à 8 espèces de coléoptères exotiques, a priori non présents sur notre territoire, des familles Cerambycidae et Curculionidae (sous-familles des Scolytinae et Platypodinae) a été relevée. Les 8 espèces d’insectes exotiques sont les suivantes : - Cerambycidae : Cordylomera spinicornis (Fabricius, 1775), Trichoferus campestris (Faldermann, 1835), Xylotrechus chinensis (Chevrolat, 1852), Xylotrechus stebbingi Gahan, 1906 ; - Curculionidae : Amasa sp. near truncata, Euplatypus hintzii (Schaufuss, 1897), Euplatypus parallelus (Fabricius, 1801), Xyleborus affinis Eichhoff, 1868.

ano.nymous@ccsd.cnrs.fr.invalid (Jean-Claude Gregoire) 11 Jun 2024

https://anses.hal.science/anses-04608634v1

[anses-04855184] Avis de L'Anses relatif à « la catégorisation de Trichoferus campestris »

Dans le cadre de la surveillance des organismes réglementés ou émergents (SORE), un dispositif de piégeage a été déployé par la DGAL en 2021 avec l’appui de l’INRAE et de l’ONF. L’objectif de ce dispositif est d’effectuer une surveillance passive dans les sites d’entrée potentiels (ports, aéroports, marché d’intérêt national (MIN) des organismes réglementés ou émergents. Ce piégeage est qualifié de « large spectre » car il peut concerner plusieurs filières de production suivies dans le cadre de la SORE (forêts, jardins et espaces verts et infrastructures (JEVI), arboriculture fruitière) en ciblant cependant majoritairement les insectes coléoptères des ligneux. Les principes de la surveillance mise en œuvre s’appuient sur les résultats précédemment acquis dans le cadre du projet PORTRAP, utilisant des pièges génériques multi-composés pour la détection précoce d’insectes exotiques xylophages dans les sites potentiels d’entrée sur le territoire national. Les pièges ont été disposés sur 13 sites (7 ports maritimes, 1 port fluvial, 4 aéroports et 1 marché national) dispersés sur le territoire (France continentale). Au total 9279 individus appartenant à 110 espèces différentes ont été capturés. Aucune espèce d’insecte de quarantaine prioritaire n’a été piégée. En revanche, la présence d’individus appartenant à 8 espèces de coléoptères exotiques, a priori non répandues sur notre territoire, des familles Cerambycidae et Curculionidae (sous-familles des Scolytinae et Platypodinae) a été relevée. Les 8 espèces d’insectes exotiques sont les suivantes : Cerambycidae : Cordylomera spinicornis (Fabricius, 1775), Trichoferus campestris (Faldermann, 1835), Xylotrechus chinensis (Chevrolat, 1852), Xylotrechus stebbingi Gahan, 1906 ; Curculionidae : Amasa sp. near truncata, Euplatypus hintzii (Schaufuss, 1897), Euplatypus parallelus (Fabricius, 1801), Xyleborus affinis Eichhoff, 1868. Ainsi, il est demandé la réalisation d’une catégorisation des 8 espèces d’insectes exotiques en utilisant les critères de risque listés ci-dessous, afin de déterminer leur nuisibilité et de prioriser sur cette base la réalisation d’analyses de risque portant sur ces insectes. Critères de risque a. Caractéristiques des espèces - Cycle biologique, - Plantes hôtes, - Symptômes, - Aires de distribution, - Nuisibilité dans ces aires de distribution, - Probabilité d’entrée et de transfert vers les plantes hôtes. b. Probabilité d’établissement - Présence d’hôtes appropriés, conditions climatiques et autres facteurs abiotiques favorables à l’établissement des 8 espèces d’insecte dans la zone ARP, - Identification d’ennemis naturels potentiels dans la zone ARP, et d’autres facteurs biotiques ainsi que les pratiques culturales pouvant contribuer à empêcher leur établissement, - Définition des zones d’établissement potentielles dans la zone ARP. c. Probabilité de dissémination - Moyens de dissémination (naturelle et assistée) dans la zone ARP, - Magnitude de la dissémination des 8 espèces d’insecte. d. Conséquences potentielles - Évaluation de l’impact économique en terme de production, associé aux 8 espèces d’insectes pour l’agriculture, la sylviculture et l’horticulture dans leur zone de répartition géographique actuelle et dans la zone ARP, - Évaluation de l’impact en JEVI dans la zone ARP. e. Conclusions des catégorisations des organismes nuisibles Dans cet avis, la catégorisation de Trichoferus campestris est présentée.

ano.nymous@ccsd.cnrs.fr.invalid (Jean-Claude Gregoire) 24 Dec 2024

https://anses.hal.science/anses-04855184v1

[hal-01536447] Stay out (almost) all night contrasting responses in flight activity among tropical moth assemblages

Variations in diel activity among hyperdiverse tropical communities of moths, despite representing a key component of niche partitioning between species, have barely been studied so far. Using light trapping from dawn to sunset over a 1-year period in French Guiana, we investigated these variations within and between two families of moths (Sphingidae and Saturniidae). Our results revealed contrasting patterns in flight activity at night between Sphingidae and Saturniidae. Sphingidae reached their peak in species richness and abundance between 7:00 and 8:00 p.m., followed by a decrease around 11:00 p.m. to midnight, whereas Saturniidae were continuously present throughout the night, with a peak around midnight. In addition, we found changes in diel activity among some of the most common genera in each family, highlighting distinct behavioral, physiological, and functional traits among taxa. Given differences in flight activity at different taxonomic levels, it is strongly recommended to monitor by light trapping throughout the night to effectively sample saturniid and sphingid assemblages, even though the activity of Sphingidae sharply declines after midnight. These results improve the general natural history information of tropical moths and reinforce the need of further research on the ecological and taxonomic consequences of differences in diel activity.

ano.nymous@ccsd.cnrs.fr.invalid (Greg Lamarre) 25 Jan 2025

https://hal.science/hal-01536447v1

[anses-04415035] Analyse des risques sanitaires liés à l’exposition aux chenilles émettrices de poils urticants et élaboration de recommandations de gestion

Les chenilles de Lépidoptères tels que les processionnaires du pin (Thaumetopoea pityocampa Denis et Schiffermüller 1775) et du chêne (Thaumetopoea processionea L. 1758), le bombyx cul-brun (Euproctis chrysorrhoea L. 1758) et la Lithosie quadrille (Lithosia quadra L. 1758), produisent des poils urticants qui, par contact direct cutané ou par inhalation, peuvent entraîner des réactions urticariennes ou allergiques chez l’espèce humaine avec un impact sanitaire significatif en cas de pullulation. Ces espèces peuvent, de plus, avoir des impacts sur certains végétaux (chêne, pin, etc.) et animaux (chien, chat, animaux d’élevage, etc.).Plusieurs espèces de ces Lépidoptères semblent accroître d’année en année leur airede répartition sur le territoire national, telle que la processionnaire du pin dont la présence était limitée historiquement au sud de la Loire et qui remonte graduellement vers le nord et en altitude à la faveur du dérèglement climatique. Le dérèglement climatique pourrait également avoir un impact sur l’évolution de l’aire de répartition et la phénologie des autres espèces de Lépidoptères à chenilles urticantes. Les chenilles émettrices de poils urticants constituent ainsi un enjeu de santé globale (en France hexagonale et ultramarine) dans les zones où elles sont déjà présentes ou dans des zones indemnes qu’elles pourraient coloniser dans un avenir proche.

ano.nymous@ccsd.cnrs.fr.invalid (Nicolas Desneux) 24 Jan 2024

https://anses.hal.science/anses-04415035v1

[hal-03419963] Functional and taxonomic responses of tropical moth communities to deforestation

Global insect decline has recently become a cause for major concern, particularly in the tropics where the vast majority of species occurs. Deforestation is suggested as being a major driver of this decline, but how anthropogenic changes in landscape structure affect tropical insect communities has rarely been addressed. We sampled Saturniidae and Sphingidae moths on 27 farms located in Brazilian Amazonia (Para state) and characterised by different deforestation histories. We used functional traits (forewing length, body mass, wing load, trophic niche breadth and resource use strategy), analysed by combining RLQ and null model analyses, to investigate the responses of their taxonomic and functional diversity to landscape change dynamics and current structure. We found that communities had a higher proportion of large and polyphagous species with low wing load in landscapes with low forest quality and relative cover and high land use turnover. This was mainly due to a significant response to deforestation by saturniids, whereas the more mobile sphingids showed no significant landscape-related pattern. We also observed an overall increase of species richness and functional dispersion in landscapes that have been deforested for a long time when compared with more recent agricultural settlements. Our results highlight the complex way in which landscape structure and historical dynamics interact to shape Neotropical moth communities and that saturniid moths respond clearly to the structure of the surrounding landscape, confirming their potential use as an indicator group for environmental monitoring programmes.

ano.nymous@ccsd.cnrs.fr.invalid (Yenny Correa‐carmona) 30 Apr 2022

https://hal.inrae.fr/hal-03419963v1

[hal-04132693] The worldwide invasion history of a pest ambrosia beetle inferred using population genomics

Xylosandrus crassiusculus, a fungus-farming wood borer native to Southeastern Asia, is the most rapidly spreading invasive ambrosia species worldwide. Previous studies focusing on its genetic structure suggested the existence of cryptic genetic variation in this species. Yet, these studies used different genetic markers, focused on different geographical areas, and did not include Europe. Our first goal was to determine the worldwide genetic structure of this species based on both mitochondrial and genomic markers. Our second goal was to study X. crassiusculus' invasion history on a global level and identify the origins of the invasion in Europe. We used a COI and RAD sequencing design to characterize 188 and 206 specimens worldwide, building the most comprehensive genetic dataset for any ambrosia beetle to date. The results were largely consistent between markers. Two differentiated genetic clusters were invasive, albeit in different regions of the world. The two markers were inconsistent only for a few specimens found exclusively in Japan. Mainland USA could have acted as a source for further expansion to Canada and Argentina through stepping-stone expansion and bridgehead events. We showed that Europe was only colonized by Cluster 2 through a complex invasion history including several arrivals from multiple origins in the native area, and possibly including bridgehead from the USA. Our results also suggested that Spain .

ano.nymous@ccsd.cnrs.fr.invalid (T. Urvois) 19 Jun 2023

https://hal.inrae.fr/hal-04132693v1

[hal-04534667] Intraspecific niche models for the invasive ambrosia beetle Xylosandrus crassiusculus suggest contrasted responses to climate change

Xylosandrus crassiusculus is an invasive ambrosia beetle comprising two differentiated genetic lineages, named cluster 1 and cluster 2. These lineages invaded different parts of the world at different periods of time. We tested whether they exhibited different climatic niches using Schoener's D and Hellinger's I indices and modeled their current potential geographical ranges using the Maxent algorithm. The resulting models were projected according to future and recent past climate datasets for Europe and the Mediterranean region. The future projections were performed for the periods 2041-2070 and 2071-2100 using 3 SSPs and 5 GCMs. The genetic lineages exhibited different climate niches. Parts of Europe, the Americas, Sub-Saharan Africa, Asia, and Oceania were evaluated as suitable for cluster 1. Parts of Europe, South America, Central and South Africa, Asia, and Oceania were considered as suitable for cluster 2. Models projection under future climate scenarios indicated a decrease in climate suitability in Southern Europe and an increase in North Eastern Europe in 2071-2100. Most of Southern and Western Europe was evaluated as already suitable for both clusters in the early twentieth century. Our results show that large climatically suitable regions still remain uncolonized and that climate change will affect the geographical distribution of climatically suitable areas. Climate conditions in Europe were favorable in the twentieth century, suggesting that the recent colonization of Europe is rather due to an increase in propagule pressure via international trade than to recent environmental changes.

ano.nymous@ccsd.cnrs.fr.invalid (Teddy Urvois) 01 Aug 2024

https://hal.inrae.fr/hal-04534667v1

[hal-04947437] Recognition of the Pseudocryptic Species Xylosandrus declivigranulatus (Schedl) as Distinct from Xylosandrus crassiusculus (Motschulsky) (Coleoptera: Curculionidae: Scolytinae: Xyleborini)

Xylosandrus crassiusculus (Motschulsky, 1866) occupies worldwide temperate to tropical forests and suburban areas within its natural and non-native range as a result of human introductions. Given its pest status, several studies of population genetics have been conducted. As a result of an ongoing study, several smaller individuals from southern Thailand exhibited nucleotide differences that were dissimilar to the remaining individuals, thus calling into question the species status of these individuals. We performed a phylogenetic analysis of X. crassiusculus individuals from widely dispersed locations, including an individual from southern Thailand. and a robust sampling of other Xylosandrus Reitter, 1913 species using xyleborine diagnostic genes mtDNA COI and nueDNA CAD. The smaller individual from southern Thailand was sister to the remaining X. crassiusculus individuals and demonstrated &gt;13% and &gt;3% nucleotide difference in COI and CAD sequences. respectively. Upon the examination of type specimens, we confirmed that these smaller X. crassiusculus individuals were indeed Xylosandrus declivigranulatus (Schedl, 1936), status restored, which we resurrect. Its smaller size and pronotum as long as wide diagnose this pseudocryptic species from X. crassiusculus.

ano.nymous@ccsd.cnrs.fr.invalid (Sarah M. Smith) 14 Feb 2025

https://hal.inrae.fr/hal-04947437v1

[hal-02613924] DNA barcodes reveal deeply neglected diversity and numerous invasions of micromoths in Madagascar

Madagascar is a prime evolutionary hotspot globally, but its unique biodiversity is under threat, essentially from anthropogenic disturbance. There is a race against time to describe and protect the Madagascan endangered biota. Here we present a first molecular characterization of the micromoth fauna of Madagascar. We collected 1572 micromoths mainly using light traps in both natural and anthropogenically disturbed habitats in 24 localities across eastern and northwest Madagascar. We also collected 1384 specimens using a Malaise trap in a primary rain forest at Andasibe, eastern Madagascar. In total, we DNA barcoded 2956 specimens belonging to 1537 Barcode Index Numbers (BINs), 88.4% of which are new to BOLD. Only 1.7% of new BINs were assigned to species. Of 47 different families found, Dryadaulidae, Bucculatricidae, Bedelliidae, Batrachedridae, and Blastobasidae are newly reported for Madagascar and the recently recognized Tonzidae is confirmed. For test faunas of Canada and Australia, 98.9%-99.4% of Macroheterocera BINs exhibited the molecular synapomorphy of a phenylalanine in the 177th complete DNA barcode codon. Non-macroheteroceran BINs could thus be sifted out efficiently in the Malaise sample. The Madagascar micromoth fauna shows highest affinity with the Afrotropics (146 BINs also occur in the African continent). We found 22 recognised pests or invasive species, mostly occurring in disturbed habitats. Malaise trap samples show high temporal turnover and alpha diversity with as many as 507 BINs collected; of these, astonishingly, 499 (98.4%) were novel to BOLD and 292 (57.6%) were singletons. Our results provide a baseline for future surveys across the island.

ano.nymous@ccsd.cnrs.fr.invalid (Carlos Lopez-Vaamonde) 20 May 2020

https://hal.science/hal-02613924v1

[anses-04718536] Avis de l'Anses relatif à « la catégorisation de Amasa parviseta »

Dans le cadre de la surveillance des organismes réglementés ou émergents (SORE), un dispositif de piégeage a été déployé par la DGAL en 2021 avec l’appui de l’INRAE et de l’ONF. L’objectif de ce dispositif est d’effectuer une surveillance passive dans les sites d’entrée potentiels (ports, aéroports, marché d’intérêt national (MIN)) des organismes réglementés ou émergents (SORE). Ce piégeage est qualifié de « large spectre » car il peut concerner plusieurs filières de production suivies dans le cadre de la SORE (forêts, jardins et espaces verts et infrastructures (JEVI), arboriculture fruitière) en ciblant cependant majoritairement les insectes coléoptères des ligneux. Les principes de la surveillance mise en œuvre s’appuient sur les résultats précédemment acquis dans le cadre du projet PORTRAP, utilisant des pièges génériques multi-composés pour la détection précoce d’insectes exotiques xylophages dans les sites potentiels d’entrée sur le territoire national. Les pièges ont été disposés sur 13 sites (7 ports maritimes, 1 port fluvial, 4 aéroports et 1 marché national) dispersés sur le territoire (France métropolitaine continentale). Au total 9279 individus appartenant à 110 espèces différentes ont été capturés. Aucune espèce d’insecte de quarantaine prioritaire n’a été piégée. En revanche, la présence d’individus appartenant à 8 espèces de coléoptères exotiques, a priori non présents sur notre territoire, des familles Cerambycidae et Curculionidae (sous-familles des Scolytinae et Platypodinae) a été relevée. Les 8 espèces d’insectes exotiques sont les suivantes : - Cerambycidae : Cordylomera spinicornis (Fabricius, 1775), Trichoferus campestris (Faldermann, 1835), Xylotrechus chinensis (Chevrolat, 1852), Xylotrechus stebbingi Gahan, 1906 ; - Curculionidae : Amasa sp. near truncata, Euplatypus hintzii (Schaufuss, 1897), Euplatypus parallelus (Fabricius, 1801), Xyleborus affinis Eichhoff, 1868.

ano.nymous@ccsd.cnrs.fr.invalid (Jean-Claude Gregoire) 02 Oct 2024

https://anses.hal.science/anses-04718536v1

[hal-04236301] The evolutionary history of capital-breeding moths through the lens of wild silkmoths (Saturniidae) phylogenomics

Wild silkmoths (Saturniidae) are large capital-breeding insects with non-feeding adults that have short lifespan entirely devoted to reproduction. They exhibit a dazzling diversity of sizes, forms, and life-histories inviting questions about the role that key traits may have played in spurring out species diversification and biogeographical movements in organisms with such extreme reproductive strategy. Yet, the absence of a robust phylogenetic framework based on comprehensive taxonomic sampling impedes our understanding of their evolutionary history. We analyzed 1,024 ultraconserved elements (UCEs) and their flanking regions to infer the relationships among 338 species of Saturniidae representing all subfamilies, tribes, and genera. We performed dating and historical biogeographic analyses to reconstruct their evolutionary history in space and time. Rather unexpectedly for a taxonomically well-known family such as Saturniidae, the alignment of taxonomic divisions and ranks with our phylogenetic results led us to propose substantial rearrangements of the family classification. Saturniids most likely originated in the Neotropics, shortly after the Cretaceous-Paleogene extinction event (ca 64.0-52.0 Ma). Old World lineages stemmed from two independent colonization events during the Eocene, presumably through the Bering-Land-Bridge. Extant subfamilies showed limited mobility across biogeographical regions, except for Saturniinae, a subfamily now present on all continents but Antarctica. These results provide a framework for the integration of saturniid evolutionary history into further global studies of biodiversity and conservation, as well as for in-depth investigations of the spatial and temporal dynamics in all lineages and of the role that key innovations played in driving species diversification of these capital-breeding moths.

ano.nymous@ccsd.cnrs.fr.invalid (Rodolphe Rougerie) 10 Oct 2023

https://hal.inrae.fr/hal-04236301v1

[hal-03232080] Climate change impact on the potential geographical distribution of two invading Xylosandrus ambrosia beetles

Xylosandrus compactus and X. crassiusculus are two polyphagous ambrosia beetles originating from Asia and invasive in circumtropical regions worldwide. Both species were recently reported in Italy and further invaded several other European countries in the following years. We used the MaxEnt algorithm to estimate the suitable areas worldwide for both species under the current climate. We also made future projections for years 2050 and 2070 using 11 different General Circulation Models, for 4 Representative Concentration Pathways (2.6, 4.5, 6.0 and 8.5). Our analyses showed that X. compactus has not been reported in all potentially suitable areas yet. Its current distribution in Europe is localised, whereas our results predicted that most of the periphery of the Mediterranean Sea and most of the Atlantic coast of France could be suitable. Outside Europe, our results also predicted Central America, all islands in Southeast Asia and some Oceanian coasts as suitable. Even though our results when modelling its potential distribution under future climates were more variable, the models predicted an increase in suitability poleward and more uncertainty in the circumtropical regions. For X. crassiusculus , the same method only yielded poor results, and the models thus could not be used for predictions. We discuss here these results and propose advice about risk prevention and invasion management of both species.

ano.nymous@ccsd.cnrs.fr.invalid (Teddy Urvois) 25 May 2021

https://hal.inrae.fr/hal-03232080v1

[hal-02813484] Tâche 8 : Biomes forêts : filière bois et fibres. Livrable : Forêt Tempérée

Les impacts des changements climatiques sur les écosystèmes ont historiquement été mis en évidence en premier lieu sur les forêts tempérées, en particulier en France où des modifications de fonctionnement à long terme ont été établies. Les impacts sont les fonctionnements et dysfonctionnements, sur le déterminisme des flux et bilan de carbone et quelques interactions hôte-bio agresseurs ont été quantifiés, mais sont encore imparfaitement modélisés. Si les enjeux varient entre les forêts de production ou sous contraintes (montagne, méditerranéenne ou ripisylves), les verrous à lever n’ont pas été distingués. Pour l’adaptation des écosystèmes forestiers, des lacunes de connaissances ont été identifiées sur les couplages entre processus et fonctions clés (allocation, reproduction compétition, mortalité) et leur modulation sous interactions de contraintes (eau, température, CO2, ozone, azote), à des pas de temps courts et longs, sur les interactions biologiques (arbre, champignons, insectes et ennemis naturel), et ceci à différentes échelles spatiales. Sur le plan génétique, des lacunes ont été listées en particulier sur les traits fonctionnels à caractères adaptatifs et pouvant intervenir dans la vulnérabilité aux contraintes futures, aussi bien en intra- qu’en interspécifique. Les priorités de recherches proposées concernent : 1) la caractérisation et cartographie de la vulnérabilité, 2) l’amélioration de nos capacités de prédiction à long terme dans les modèles à bases fonctionnelles ou génériques de dynamique de peuplements, 3), l’adaptation de la gestion et de la filière en développant des outils d’aide à la décision politique et gestion, 4) la transformation des peuplements (substitution ou introduction d’essences) et la filière forêt bois. Ces recherches seront à conduire de manière prioritaire dans les fronts d’expansion (colonisateurs) ou de régressions d’aires, les zones tampons entre biomes (forêt-agriculture, ripisylves). Des options d’adaptation de la gestion seront confrontées à des réticences sociologiques et à des incohérences réglementaires qu’il faudra faire évoluer. Des outils d’évaluation économique devront également accompagner des stratégies d’adaptation pour les raisonner à long terme, en particulier en distinguant les chocs mous (dépérissements, réduction de productivité) ou durs (tempêtes).

ano.nymous@ccsd.cnrs.fr.invalid (Nathalie Bréda) 06 Jun 2020

https://hal.inrae.fr/hal-02813484v1

[hal-02659519] Systematics of the Dioryctria abietella species group (Lepidoptera: Pyralidae) based on mitochondrial DNA

Coneworms of the genus Dioryctria Zeller include a number of serious pests of conifer seeds that are notoriously difficult to distinguish as species. We surveyed mitochondrial DNA variation within the abietella species group by sequencing 451 bp of COI and 572 bp of COII genes from 64 individuals of 6 major species in the group. In addition to examining phylogenetic relationships within European members of the group, the study focused on the two most damaging species, D. abietivorella Grote from North America and D. abietella Denis and Schiffermüller from Europe and Asia, which have been considered taxonomically synonymous in the past. In order to detect different levels of divergence, we extensively sampled in seed orchards and natural forests for D. abietella on different hosts. Maximum parsimony and maximum likelihood analyses confirmed the monophyly of the abietella species group and its separation into three clades. The grouping of North American species (Clade A) received strong support in both analyses, whereas relationships between Clade A and the two other European clades were weakly supported. D. simplicella Heinemann could not be unambiguously separated from D. abietella populations. The diverse haplotypes observed in the network analysis conducted with eight populations of polyphagous D. abietella suggested the presence of two distinct lineages in France.

ano.nymous@ccsd.cnrs.fr.invalid (Géraldine Roux-Morabito) 30 May 2020

https://hal.inrae.fr/hal-02659519v1

[hal-02325152] Potential spread of the invasive North American termite, Reticulitermes flavipes, and the impact of climate warming

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Christelle Suppo) 22 Oct 2019

https://hal.science/hal-02325152v1

[hal-03366792] Preventing invasions of Asian longhorn beetle and citrus longhorn beetle: are we on the right track?

Two Asian longhorn beetles, Anoplophora glabripennis and Anoplophora chinensis, are among the most serious alien invasive species attacking forest and urban trees, both in North America and Europe. Major efforts have been put into preventing further entry and establishment of the two species as well as promoting their successful eradication. Here, we review these efforts, their progress and outcome, and scientific advancements in monitoring and control methods. The combined international activities and harmonizing legislative changes in detection and eradication methods have proven worthwhile, with more than 45% of eradication programmes successful in the last 12 years. Some countries were able to completely eradicate all populations and others managed to reduce the area affected. Although the costs of the eradication programmes can be very high, the benefits outweigh inaction. Attempts to eradicate A. chinensis have been more challenging in comparison with those targeting A. glabripennis. For both species, efforts are hampered by the ongoing arrival of new beetles, both from their native regions in Asia and from other invaded regions via bridgehead effects. The methods used for eradication have not changed much during the last decade, and host removal is still the method most commonly used. On the other hand, detection methods have diversified during the last decade with advances in semiochemical research and use of detection dogs. The next decade will determine if eradications continue to be successful, particularly in the case of A. chinensis, which has been targeted in some countries for containment instead of eradication. Key Message: • Anoplophora glabripennis and Anoplophora chinensis are invasive wood borers native to Asia • Both species are serious pests in their invaded range, attacking healthy forest and urban trees • We analyse data from 2008–2020, regarding interceptions, establishments and eradications • In Europe and North America more than 45% of eradication programmes were successful • Innovations on management strategies and recent scientific achievements are reviewed

ano.nymous@ccsd.cnrs.fr.invalid (Sofia Branco) 05 Oct 2021

https://hal.inrae.fr/hal-03366792v1

[hal-04871434] Tracking the North American Asian Longhorned Beetle Invasion With Genomics

Biological invasions pose significant threats to ecological and economic stability, with invasive pests like the Asian longhorned beetle (Anoplophora glabripennis Motschulsky, ALB) causing substantial damage to forest ecosystems. Effective pest management relies on comprehensive knowledge of the insect's biology and invasion history. This study uses genomics to address these knowledge gaps and inform existing biosurveillance frameworks. We used 2768 genome-wide single nucleotide polymorphisms to compare invasive A. glabripennis populations in North America, using genomic variation to trace their sources of invasion and spread patterns, thereby refining our understanding of this species' invasion history. We found that most North American A. glabripennis infestations were distinct, resulting from multiple independent introductions from the native range. Following their introduction, all invasive populations experienced a genetic bottleneck which was followed by a population expansion, with a few also showing secondary spread to satellite infestations. Our study provides a foundation for a genome-based biosurveillance tool that can be used to clarify the origin of intercepted individuals, allowing regulatory agencies to strengthen biosecurity measures against this invasive beetle.

ano.nymous@ccsd.cnrs.fr.invalid (Mingming Cui) 07 Jan 2025

https://hal.inrae.fr/hal-04871434v1

[hal-05117257] Approches en développement : prospectives sur la détection précoce

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ano.nymous@ccsd.cnrs.fr.invalid (Alain Roques) 17 Jun 2025

https://hal.inrae.fr/hal-05117257v1

[hal-04171739] Les scolytes du genre Xylosandrus à la conquête de l'Europe

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ano.nymous@ccsd.cnrs.fr.invalid (Teddy Urvois) 26 Jul 2023

https://hal.inrae.fr/hal-04171739v1

[hal-03211695] DNA barcoding for bio-surveillance of emerging pests and species identification in Afrotropical Prioninae (Coleoptera, Cerambycidae)

DNA barcoding has been succesfully used for bio-surveillance of forest and agricultural pests in temperate areas, but has few applications in the tropics and particulary in Africa. Cacosceles newmannii (Coleoptera: Cerambycidae) is a Prioninae species that is locally causing extensive damage in commercially-grown sugarcane in the KwaZulu-Natal Province in South Africa. Due to the risk of spread of this species to the rest of southern Africa and to other sugarcane growing regions, clear and easy identification of this pest is critical for monitoring and for phytosanitary services. The genus Cacosceles Newman, 1838 includes four species, most being very similar in morphology. The damaging stage of the species is the larva, which is inherently difficult to distinguish morphologically from other Cerambycidae species. A tool for rapid and reliable identification of this species was needed by plant protection and quarantine agencies to monitor its potential abundance and spread. Here, we provide newly-generated barcodes for C. newmannii that can be used to reliably identify any life stage, even by non-trained taxonomists. In addition, we compiled a curated DNA barcoding reference library for 70 specimens of 20 named species of Afrotropical Prioninae to evaluate DNA barcoding as a valid tool to identify them. We also assessed the level of deeply conspecific mitochondrial lineages. Sequences were assigned to 42 different Barcode Index Numbers (BINs), 28 of which were new to BOLD. Out of the 20 named species barcoded, 11 (52.4%) had their own unique Barcode Index Number (BIN). Eight species (38.1%) showed multiple BINs with no morphological differentiation. Amongst them, C. newmannii showed two highly divergent genetic clusters which co-occur sympatrically, but further investigation is required to test whether they could represent new cryptic species.

ano.nymous@ccsd.cnrs.fr.invalid (Marion Javal) 29 Apr 2021

https://hal.inrae.fr/hal-03211695v1

[hal-03045949] Grassland-to-crop conversion in agricultural landscapes has lasting impact on the trait diversity of bees

Context Global pollinator decline has motivated much research to understand the underlying mechanisms. Among the multiple pressures threatening pollinators, habitat loss has been suggested as a key-contributing factor. While habitat destruction is often associated with immediate negative impacts, pollinators can also exhibit delayed responses over time. Objectives We used a trait-based approach to investigate how past and current land use at both local and landscape levels impact plant and wild bee communities in grasslands through a functional lens. Methods We measured flower and bee morphological traits that mediate plant–bee trophic linkage in 66 grasslands. Using an extensive database of 20 years of land-use records, we tested the legacy effects of the landscape-level conversion of grassland to crop on flower and bee trait diversity. Results Land-use history was a strong driver of flower and bee trait diversity in grasslands. Particularly, bee trait diversity was lower in landscapes where much of the land was converted from grassland to crop long ago. Bee trait diversity was also strongly driven by plant trait diversity computed with flower traits. However, this relationship was not observed in landscapes with a long history of grassland-to-crop conversion. The effects of land-use history on bee communities were as strong as those of current land use, such as grassland or mass-flowering crop cover in the landscape. Conclusions Habitat loss that occurred long ago in agricultural landscapes alters the relationship between plants and bees over time. The retention of permanent grassland sanctuaries within intensive agricultural landscapes can offset bee decline.

ano.nymous@ccsd.cnrs.fr.invalid (Gaëtane Le Provost) 17 Oct 2023

https://hal.science/hal-03045949v1

[hal-02640423] Species-Level Para- and Polyphyly in DNA Barcode Gene Trees: Strong Operational Bias in European Lepidoptera

The proliferation of DNA data is revolutionizing all fields of systematic research. DNA barcode sequences, now available for millions of specimens and several hundred thousand species, are increasingly used in algorithmic species delimitations. This is complicated by occasional incongruences between species and gene genealogies, as indicated by situations where conspecific individuals do not form a monophyletic cluster in a gene tree. In two previous reviews, non-monophyly has been reported as being common in mitochondrial DNA gene trees. We developed a novel web service “Monophylizer” to detect non-monophyly in phylogenetic trees and used it to ascertain the incidence of species non-monophyly in COI (a.k.a. cox1) barcode sequence data from 4977 species and 41,583 specimens of European Lepidoptera, the largest data set of DNA barcodes analyzed from this regard. Particular attention was paid to accurate species identification to ensure data integrity. We investigated the effects of tree-building method, sampling effort, and other methodological issues, all of which can influence estimates of non-monophyly. We found a 12% incidence of non-monophyly, a value significantly lower than that observed in previous studies. Neighbor joining (NJ) and maximum likelihood (ML) methods yielded almost equal numbers of non-monophyletic species, but 24.1% of these cases of non-monophyly were only found by one of these methods. Non-monophyletic species tend to show either low genetic distances to their nearest neighbors or exceptionally high levels of intraspecific variability. Cases of polyphyly in COI trees arising as a result of deep intraspecific divergence are negligible, as the detected cases reflected misidentifications or methodological errors. Taking into consideration variation in sampling effort, we estimate that the true incidence of non-monophyly is ∼23%, but with operational factors still being included. Within the operational factors, we separately assessed the frequency of taxonomic limitations (presence of overlooked cryptic and oversplit species) and identification uncertainties. We observed that operational factors are potentially present in more than half (58.6%) of the detected cases of non-monophyly. Furthermore, we observed that in about 20% of non-monophyletic species and entangled species, the lineages involved are either allopatric or parapatric—conditions where species delimitation is inherently subjective and particularly dependent on the species concept that has been adopted. These observations suggest that species-level non-monophyly in COI gene trees is less common than previously supposed, with many cases reflecting misidentifications, the subjectivity of species delimitation or other operational factors.

ano.nymous@ccsd.cnrs.fr.invalid (Marko Mutanen) 28 May 2020

https://hal.inrae.fr/hal-02640423v1

[anses-05175671] Avis de l'Anses relatif à « la catégorisation de Cordylomera spinicornis »

L’Anses a été saisie le 27 janvier 2023 par la direction générale de l’alimentation du ministère de l’agriculture et de la souveraineté alimentaire pour la réalisation de l’expertise suivante : Catégorisation de huit espèces d’insectes exotiques dont Cordylomera spinicornis. CONTEXTE ET OBJET DE LA SAISINE Dans le cadre de la surveillance des organismes réglementés ou émergents (SORE), un dispositif de piégeage a été déployé par la DGAL en 2021 avec l’appui de l’INRAE et de l’ONF. L’objectif de ce dispositif est d’effectuer une surveillance passive dans les sites d’entrée ,potentiels (ports, aéroports, marché d’intérêt national (MIN)) des organismes réglementés ou émergents. Ce piégeage est qualifié de « large spectre » car il peut concerner plusieurs filières, de production suivies dans le cadre de la SORE (forêts, jardins et espaces verts et ,infrastructures (JEVI), arboriculture fruitière) en ciblant cependant majoritairement les insectes coléoptères des ligneux. Les principes de la surveillance mise en œuvre s’appuient sur les résultats précédemment acquis dans le cadre du projet PORTRAP, utilisant des pièges génériques multi-composés pour la détection précoce d’insectes exotiques xylophages dans les sites potentiels d’entrée sur le territoire national. Les pièges ont été disposés sur 13 sites (7 ports maritimes, 1 port fluvial, 4 aéroports et 1 marché national) dispersés sur le territoire (France continentale). Au total 9279 individus appartenant à 110 espèces différentes ont été capturés. Aucune espèce d’insecte de quarantaine prioritaire n’a été piégée. En revanche, la présence d’individus appartenant à 8 espèces de coléoptères exotiques, à priori non répandues sur notre territoire, des familles Cerambycidae et Curculionidae (sous-familles des Scolytinae et Platypodinae) a été relevée. Les 8 espèces d’insectes exotiques sont les suivantes : Cerambycidae : Cordylomera spinicornis (Fabricius, 1775), Trichoferus campestris (Faldermann, 1835), Xylotrechus chinensis (Chevrolat, 1852), Xylotrechus stebbingi Gahan, 1906 ; Curculionidae : Amasa sp. near truncata, Euplatypus hintzii (Schaufuss, 1897), Euplatypus parallelus (Fabricius, 1801), Xyleborus affinis Eichhoff, 1868. Ainsi, il est demandé la réalisation d’une catégorisation des 8 espèces d’insectes exotiques en utilisant les critères de risque listés ci-dessous, afin de déterminer leur nuisibilité et de prioriser sur cette base la réalisation d’analyses de risque portant sur ces insectes. Critères de risque a. Caractéristiques des espèces • Cycle biologique, • Plantes hôtes, • Symptômes, • Aires de distribution, • Nuisibilité dans ces aires de distribution, • Probabilité d’entrée et de transfert vers les plantes hôtes. b. Probabilité d’établissement • Présence d’hôtes appropriés, conditions climatiques et autres facteurs abiotiques favorables à l’établissement des 8 espèces d’insecte dans la zone ARP, • Identification d’ennemis naturels potentiels dans la zone ARP, et d’autres facteurs biotiques ainsi que les pratiques culturales pouvant contribuer à empêcher leur établissement, • Définition des zones d’établissement potentielles dans la zone ARP. c. Probabilité de dissémination • Moyens de dissémination (naturelle et assistée) dans la zone ARP, • Magnitude de la dissémination des 8 espèces d’insecte. d. Conséquences potentielles • Évaluation de l’impact économique en terme de production, associé aux 8 espèces d’insectes pour l’agriculture, la sylviculture et l’horticulture dans leur zone de répartition géographique actuelle et dans la zone ARP, • Évaluation de l’impact en JEVI dans la zone ARP. e. Conclusions des catégorisations des organismes nuisibles Dans cet avis, la catégorisation de Cordylomera spinicornis sera présentée

ano.nymous@ccsd.cnrs.fr.invalid (Jean-Claude Gregoire) 22 Jul 2025

https://anses.hal.science/anses-05175671v1

[hal-05054582] Warmer and brighter winters than before: Ecological and public health challenges from the expansion of the pine processionary moth (Thaumetopoea pityocampa)

Highlights: • We model the geographic range of the pine processionary moth (PPM). • Three species distribution models are constructed using tree-based methods. • Interpretable machine learning reveals climate variables limiting the PPM's distribution. • A significant northward expansion is projected for the coming decades. • A contraction of suitable regions is expected in North Africa by 2040–2060. Abstract: Assessing the species ecological responses to ongoing climate change is a critical challenge in environmental science. Rising temperatures, particularly in winter, are altering the distribution patterns of many species, including the pine processionary moth (PPM), Thaumetopoea pityocampa (Denis &amp; Schiffermuller, 1775). This Mediterranean species, a significant defoliator of conifers, is expanding its range northward as winter temperatures increase. The larvae of PPM also pose serious public health risks due to their ability to induce allergic reactions in humans, pets, and livestock. To better understand these ecological shifts, we calibrated three distribution models (Bayesian Additive Regression Trees, Boosted Regression Trees, and Random Forest) based on historical and modern occurrence data compiling of 1769 points, and assessed climate suitability under historical, current and future conditions. Our results show that winter minimum temperatures, summer maximum temperatures, and solar radiation significantly influence the life cycle, and shape the geographical distribution of PPM. Under current conditions, PPM could extend its range further north, but its limited flight capabilities hinder its ability to keep up with the pace of climate change. Future projections suggest continued northward expansion, although solar radiation is expected to limit the northernmost range of PPM. Certain host tree species of PPM are frequently used as ornamental plants, particularly in urban areas, which makes the careful selection of these species a potentially valuable tool for management. Our findings identify regions that are likely to become suitable for PPM colonization, where proactive measures could be implemented.

ano.nymous@ccsd.cnrs.fr.invalid (Jean-Pierre Rossi) 02 May 2025

https://hal.inrae.fr/hal-05054582v1

[hal-05117145] Comment quantifier et expliquer les aires de distribution et leur expansions ?

Pour caractériser le déplacement des aires de distribution (invasions/expansions), il est nécessaire de cartographier leur aire de distribution à différentes années. Le phénomène d'expansion, commun aux espèces exotiques envahissantes et aux espèces natives en expansion, est le résultat de deux processus principaux : la dispersion et l'établissement. La probabilité d'établissement dépend notamment des conditions météorologiques dans le territoire où les individus sont nouvellement arrivés. C'est pour cette raison que, dans ce chapitre, nous abordons : les méthodes de cartographie des insectes forestiers ravageurs, les méthodes pour mesurer leurs capacités de dispersion, et les différentes sources possibles des variables météorologiques.

ano.nymous@ccsd.cnrs.fr.invalid (Christelle Robinet) 17 Jun 2025

https://hal.science/hal-05117145v1

[hal-03655908] Studying hyperdiverse lepidopteran communities in French Guiana with DNA barcoding

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ano.nymous@ccsd.cnrs.fr.invalid (Rodolphe Rougerie) 30 Apr 2022

https://hal.inrae.fr/hal-03655908v1

[hal-02819728] Impacts of climate change on temperate forests and interaction with management

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Denis Loustau) 06 Jun 2020

https://hal.inrae.fr/hal-02819728v1

[hal-04506156] The pine processionary moth Thaumetopoea pityocampa (Notodontidae) species complex: a phylogeny-based revision

The pine processionary moth, Thaumetopoea pityocampa , is an iconic insect in the Mediterranean culture because of its economic and medical importance and the unique traits of the life history, namely the winter feeding and the construction of conspicuous silk tents by the larvae. Its taxonomic status, however, is unclear because the type material is not available and there is confusion among the several species and subspecies described in the last centuries. In the present study, a metadata analysis of morphological and molecular data of the species in the T. pityocampa complex were considered for species delimitation, using more than 400 individuals from more than 120 geographic locations. A reconstruction of the origin of the material used for the first formal description has allowed to identify the type locality and to design a neotype. In addition, as Denis and Schiffermüller were referring to the work of Réaumur for details about the species, the description provided by Réaumur was reviewed. The results indicate that the barcode region of mitochondrial DNA is a reliable trait to separate species in most cases whereas morphological traits are not. Hybridization among taxa makes it difficult to delimit species in contact zones when mating barriers are not present. In other cases, such as the populations of Crete Island, the lack of gene flow with the mainland population may support species delimitation even when morphological traits are not conclusive. Thus, the new species Thaumetopoea cretensis is described here based on the evidence obtained from a previous study. Species delimitation based on both mitochondrial and nuclear markers allowed maintenance of three species of the complex ( T. cretensis , T. pityocampa , and T. wilkinsoni ) while more data are needed to determine the status of two recently described species: T. hellenica and T. mediterranea .

ano.nymous@ccsd.cnrs.fr.invalid (Andrea Basso) 15 Mar 2024

https://hal.inrae.fr/hal-04506156v1

[hal-04171659] Contrasting invasion history in two ambrosia beetles of the Xylosandrus genus

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ano.nymous@ccsd.cnrs.fr.invalid (Teddy Urvois) 26 Jul 2023

https://hal.inrae.fr/hal-04171659v1

[hal-04312053] Genome‐scale phylogeography resolves the native population structure of the Asian longhorned beetle, Anoplophora glabripennis (Motschulsky)

Human‐assisted movement has allowed the Asian longhorned beetle (ALB, Anoplophora glabripennis (Motschulsky)) to spread beyond its native range and become a globally regulated invasive pest. Within its native range of China and the Korean peninsula, human‐mediated dispersal has also caused cryptic translocation of insects, resulting in population structure complexity. Previous studies used genetic methods to detangle this complexity but were unable to clearly delimit native populations which is needed to develop downstream biosurveillance tools. We used genome‐wide markers to define historical population structure in native ALB populations and contemporary movement between regions. We used genotyping‐by‐sequencing to generate 6102 single‐nucleotide polymorphisms (SNPs) and amplicon sequencing to genotype 53 microsatellites. In total, we genotyped 712 individuals from ALB’s native distribution. We observed six distinct population clusters among native ALB populations, with a clear delineation between northern and southern groups. Most of the individuals from South Korea were distinct from populations in China. Our results also indicate historical divergence among populations and suggest limited large‐scale admixture, but we did identify a restricted number of cases of contemporary movement between regions. We identified SNPs under selection and describe a clinal allele frequency pattern in a missense variant associated with glycerol kinase, an important enzyme in the utilization of an insect cryoprotectant. We further demonstrate that small numbers of SNPs can assign individuals to geographic regions with high probability, paving the way for novel ALB biosurveillance tools.

ano.nymous@ccsd.cnrs.fr.invalid (Mingming Cui) 19 Feb 2025

https://hal.inrae.fr/hal-04312053v1

[hal-04672656] Building integrated plant health surveillance: a proactive research agenda for anticipating and mitigating disease and pest emergence

In an era marked by rapid global changes, the reinforcement and modernization of plant health surveillance systems have become imperative. Sixty-five scientists present here a research agenda for an enhanced and modernized plant health surveillance to anticipate and mitigate disease and pest emergence. Our approach integrates a wide range of scientific fields (from life, social, physical and engineering sciences) and identifies the key knowledge gaps, focusing on anticipation, risk assessment, early detection, and multi-actor collaboration. The research directions we propose are organized around four complementary thematic axes. The first axis is the anticipation of pest emergence, encompassing innovative forecasting, adaptive potential, and the effects of climatic and cropping system changes. The second axis addresses the use of versatile broad-spectrum surveillance tools, including molecular or imaging diagnostics supported by artificial intelligence, and monitoring generic matrices such as air and water. The third axis focuses on surveillance of known pests from new perspectives, i.e., using novel approaches to detect known species but also anticipating and detecting, within a species, the populations or genotypes that pose a higher risk. The fourth axis advocates the management of plant health as a commons through the establishment of multi-actor and cooperative surveillance systems for long-term data-driven alert systems and information dissemination. We stress the importance of integrating data and information from multiple sources through open science databases and metadata, alongside developing methods for interpolating and extrapolating incomplete data. Finally, we advocate an Integrated Health Surveillance approach in the One Health context, favoring tailored and versatile solutions to plant health problems and recognizing the interconnected risks to the health of plants, humans, animals and the environment, including food insecurity, pesticide residues, environmental pollution and alterations of ecosystem services.

ano.nymous@ccsd.cnrs.fr.invalid (S. Soubeyrand) 26 Aug 2024

https://hal.inrae.fr/hal-04672656v1

[hal-02670846] Initial frequency of alleles conferring resistance to Bacillus thuringiensis poplar in a field population of Chrysomela tremulae

Globally, the estimated total area planted with transgenic plants producing Bacillus thuringiensis (Bt) toxins was 12 million hectares in 2001. The risk of target pests becoming resistant to these toxins has led to the implementation of resistance-management strategies. The efficiency and sustainability of these strategies, including the high-dose plus refuge strategy currently recommended for North American maize, depend on the initial frequency of resistance alleles. In this study, we estimated the initial frequencies of alleles conferring resistance to transgenic Bt poplars producing Cry3A in a natural population of the poplar pest Chrysomela tremulae (Coleoptera: Chrysomelidae). We used the F2 screen method developed for detecting resistance alleles in natural pest populations. At least three parents of the 270 lines tested were heterozygous for a major Bt resistance allele. We estimated mean resistance-allele frequency for the period 1999–2001 at 0.0037 (95% confidence interval = 0.000 45–0.0080) with a detection probability of 90%. These results demonstrate that (i) the F2 screen method can be used to detect major alleles conferring resistance to Bt-producing plants in insects and (ii) the initial frequency of alleles conferring resistance to Bt toxin can be close to the highest theoretical values that are expected prior to the use of Bt plants if considering fitness costs and typical mutation rates.

ano.nymous@ccsd.cnrs.fr.invalid (Anne Genissel) 02 Sep 2020

https://hal.inrae.fr/hal-02670846v1

[hal-02676697] Genetics of resistance to transgenic Bacillus thuringiensis poplars in the poplar leaf beetle, Chrysomela tremulae F. (Coleoptera: Chrysomelidae)

The area under genetically engineered plants producing Bacillus thuringiensis (Bt) toxins is steadily increasing. This increase has magnified the risk of alleles conferring resistance to these toxins being selected in natural populations of target insect pests. The speed at which this selection is likely to occur depends on the genetic characteristics of Bt resistance. We selected a strain of the beetle Chrysomela tremulae Fabricius on a transgenic Bt poplar clone Populus tremula L. x Populus tremuloides Michx producing high levels of B.thuringiensis Cry3Aa toxin. This strain was derived from an isofemale line that generated some F-2 offspring that actively fed on this Bt poplar clone. The resistance ratio of the strain was >6,400. Susceptibility had decreased to such an extent that the mortality of beetles of the strain fed Bt poplar leaves was similar to that of beetles fed nontransgenic poplar leaves. Genetic crosses between susceptible, resistant, and F1 hybrids showed that resistance to the Cry3Aa toxin was almost completely recessive (D-LC = 0.07) and conferred by a single autosomal gene. The concentration of Cry3Aa produced in the transgenic Bt poplar used in this study was 6.34 times higher than the LC99 of the F1 hybrids, accounting for the complete recessivity (D-ML = 0) of survival on Bt poplar leaves. Overall, the genetic characteristics of the resistance of C. tremulae to the Cry3Aa toxin are consistent with the assumptions underlying the high-dose refuge strategy, which aims to decrease the selection of Bt resistance alleles in natural target pest populations.

ano.nymous@ccsd.cnrs.fr.invalid (Sylvie Augustin) 31 May 2020

https://hal.inrae.fr/hal-02676697v1

[hal-03593160] Genetic structure of European invasive populations of two Xylosandrus species

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Teddy Urvois) 01 Mar 2022

https://hal.inrae.fr/hal-03593160v1

[hal-03123290] Comparative studies of egg parasitoids of the pine processionary moth (Thaumetopoea pityocampa, Den. & Schiff.) in historic and expansion areas in France and Bulgaria

To investigate enemy pressure across the range of the pine processionary moth (Thaumetopoea pityocampa, Den. &amp; Schiff.) as it spreads northwards in Europe because of climate change, a survey of 206 egg batches from historical and newly colonized areas at both the westernmost and the easternmost ends of the front was carried out in 2016–2018. Out of them, 97 egg batches were collected from nine locations in three regions in France and 109 from four localities in two regions in Bulgaria, both within historical and newly colonized ranges of the pest. The average number of eggs per batch collected in Bulgaria (226.6 ± 43.2) was higher than that in France (194.3 ± 50.1). However, the hatching percentage was higher in French samples, varying from 69.8 to 95.7, vs 49.8 to 85.2 per cent in Bulgarian samples. Four primary parasitoids (Ooencyrtus pityocampae, Baryscapus servadeii, Anastatus bifasciatus, Trichogramma sp.) and a hyperparasitoid (Baryscapus transversalis, found only in two regions of the historical range in Bulgaria) were identified. The oligophagous species B. servadeii was present at all sites within the historical range of the pest. In newly colonized areas, the impact of primary parasitoids on the host was distinctly low, suggesting that they lag behind the range expansion of pine processionary moth. In France, the most abundant species in the T. pityocampa parasitoid complex were B. servadeii in Ré Island and Orléans (97.3 and 87.4 per cent, respectively), and Trichogramma sp. (99.7 per cent) in a newly colonized locality in Fréhel. Ooencyrtus pityocampae prevailed in three of four Bulgarian localities (72.1 per cent in Sandanski, 89.7 per cent in Maglizh and 65.7 per cent in Sladak kladenets), whereas B. servadeii was the most abundant in Gega (75.4 per cent). Mortality of B. servadeii and O. pityocampae caused by the hyperparasitoid B. transversalis amounted to 4.8–6.2 per cent. The impact of predators on the pine processionary moth in the egg stage was negligible at most sites, reaching 12.5 per cent in only one site (Maglizh).

ano.nymous@ccsd.cnrs.fr.invalid (Georgi Georgiev) 09 Oct 2023

https://hal.science/hal-03123290v1

[hal-05388136] DAISIE - Inventory of alien invasive species in Europe

The DAISIE - inventory of alien invasive species in Europe is a species checklist dataset published by the Research Institute for Nature and Forest (INBO) and the Centre for Ecology and Hydrology (CEH). It contains information on 12,104 taxa (mostly species and mostly introduced) occurring in the wild in Europe since 1500. It covers a broad taxonomic spectrum of terrestrial and aquatic free living and parasitic organisms. The collation of the alien species list is the result of the efforts of the DAISIE (http://www.europe-aliens.org) project partners and more than 300 collaborators from Europe and neighbouring countries, involved in different fields of expertise and organisations. Here the DAISIE checklist is published as a standardized Darwin Core Archive and includes for each species: the scientific name, higher classification, and stable taxon identifier (in the taxon core), the vernacular names (in the vernacular names extension), the presence in a specific region, the year of the first introduction (first collection) and/or last assessment/observation in that region, as well as extra information (in the distribution extension), and the habitat, native range, and ecofunctional group (in the description extension). The DAISIE dataset is no longer maintained, but can be used as a historical archive for researching and managing alien plants or compiling regional and national registries of alien species. Issues with the dataset can be reported at https://github.com/trias-project/daisie-checklist. We have released this dataset under a Creative Commons Attribution license (CC-BY 4.0). We would appreciate it if you follow the GBIF citation guidelines (https://www.gbif.org/citation-guidelines) when using the data. If you have any questions regarding this dataset, don’t hesitate to contact us via the contact information provided in the metadata or via https://twitter.com/trias_project. The publication of the checklist to GBIF was supported by the European Cooperation in Science and Technology (COST) action Alien CSI “CA17122 - Increasing understanding of alien species through citizen science” as a Short Term Scientific Mission “Publishing alien species checklist data for Europe through repeatable, open workflows”, with technical support provided by the Research Institute for Nature and Forest (INBO).

ano.nymous@ccsd.cnrs.fr.invalid (David Roy) 28 Nov 2025

https://hal.inrae.fr/hal-05388136v1

[hal-04171596] Dynamique d’expansion d’une population introduite de Xylosandrus crassiusculus (Coleoptera : Curculionidae) en France

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Thomas Boivin) 31 Jul 2023

https://hal.inrae.fr/hal-04171596v1

[tel-04368466] Structure génétique et modélisation de la distribution des populations de deux espèces invasives de Xylosandrus (Scolytinae - Xyleborini) : deux espèces proches aux histoires d’invasion différentes

Xylosandrus compactus et X. crassiusculus sont deux scolytes originaires d’Asie du Sud-Est et invasifs sur plusieurs continents, dont la biologie et l’écologie atypiques favorisent l’invasion. Une approche pluridisciplinaire a été utilisée au cours de cette thèse afin (i) d’identifier l’origine des populations invasives et leurs routes d’invasion, et (ii) de déterminer les zones dans lesquelles elles pourraient s'étendre et s’établir. Les routes d’invasion ont été retracées à l’aide d’un marqueur mitochondrial et de marqueurs génomiques, et les zones favorables à l’établissement de chaque espèce ont été déterminées à l’aide de modèles de distribution d’espèces (SDM). Malgré leur proximité écologique et phylogénétique, les deux espèces ont une histoire d’invasion différente. Deux lignées ont été identifiées chez X. compactus, l’une originaire d’Inde ou du Vietnam ayant envahi l’Afrique et l’autre originaire de la région de Shanghai et ayant envahi indépendamment les Amériques et les îles du Pacifique, puis l’Europe. X. crassiusculus est composé de deux clusters très divergents, majoritairement allopatriques et possédant des niches écologiques différentes. Le cluster 1 a envahi indépendamment les îles du Pacifique et l’Afrique. Le cluster 2 est responsable de l’invasion en Amérique, en Europe, en Afrique et en Océanie, avec plusieurs invasions indépendantes de multiples origines (dont des événements dits "tête de pont") suivies de dispersion intra-continentale. Les SDM ont montré pour les deux espèces l’existence de zones favorables où elles ne sont pas encore présentes et qui sont donc susceptibles d’être envahies secondairement. Nous anticipons également un impact du changement climatique sur leurs potentielles distributions futures. A l'inverse, l'évolution récente du climat n'est pas responsable de l'invasion récente de l'Europe, ce continent étant favorable depuis plusieurs décennies.

ano.nymous@ccsd.cnrs.fr.invalid (Teddy Urvois) 01 Jan 2024

https://theses.hal.science/tel-04368466v1

[hal-04498528] Dataset documenting prevalence and counts of pine processionary moth tents on local host trees in 3 regions of France with different climatic environments

The pine processionary moth Thaumetopoea pityocampa is a defoliating lepidopter that develops during winter. The larvae are gregarious and bear urticating setae that are harmful to humans and vertebrates. They shelter in conspicuous silk tents that are easy to detect. We here present a dataset comprising tree characterization and tent counts from 3 agglomerations in France located in regions with different climatic environments. The studied trees belong to various conifer species that are potential hosts for the caterpillars. In each site, we defined clusters as one target tree and its 10–62 nearest neighbors, and surveyed each tree within the clusters by informing: tree species, coordinates, size, number of tents. We characterized a total of 3690 trees, including 2009 trees in Orléans (grouped in 68 clusters), 359 trees in La Baule (18 clusters) and 1322 trees in Montpellier (52 clusters). We provide the raw data characterizing each individual tree, graphs showing the prevalence and mean number of tents for the tree species included in the survey, and maps allowing to locate each tree. This dataset brings information about host preference of the pine processionary moth and will be useful as a baseline to study spatio-temporal variability of host-insect relationships. It can also be informative for decision-makers and managers of urban greenings to avoid trees that are likely to be heavily infested for plantation in proximity to vulnerable people.

ano.nymous@ccsd.cnrs.fr.invalid (Carole Kerdelhué) 11 Mar 2024

https://hal.inrae.fr/hal-04498528v1

[hal-04171626] Past, present and future potential geographical distribution of Xylosandrus crassiusculus in Europe

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Teddy Urvois) 26 Jul 2023

https://hal.inrae.fr/hal-04171626v1

[hal-03609676] A first inference of the phylogeography of the worldwide invader Xylosandrus compactus

Native to Southeastern Asia, the ambrosia beetle Xylosandrus compactus is invasive worldwide. Its invasion is favoured by its cryptic lifestyle, symbiosis with a fungus that facilitates a broad range of host plants, and predominant sib-mating reproduction. X. compactus invaded Africa more than a century ago and the Americas and Pacific Islands in the middle of the twentieth century. It was not detected in Europe before 2011, when it was first reported in Italy before quickly spreading to France, Greece and Spain. Despite the negative environmental, agricultural and economic consequences of the invasion of X. compactus, its invasion history and main pathways remain poorly documented. We used COI and RAD sequencing to (i) characterise the worldwide genetic structure of the species, (ii) disentangle the origin(s) of the non-native populations on the three invaded continents and (iii) analyse the genetic diversity and pathways within each invaded region. Three mitochondrial lineages were identified in the native range. Populations invading Europe and the American-Pacific region originated from the first lineage and were only slightly genetically differentiated at nuclear SNP markers, suggesting independent introductions from close sources in or near Shanghai, ca. 60 years apart. Populations invading Africa originated from the second lineage, likely from India or Vietnam.

ano.nymous@ccsd.cnrs.fr.invalid (Teddy Urvois) 06 Sep 2023

https://hal.inrae.fr/hal-03609676v1

[anses-04616086] Avis de l'Anses relatif à « l’avenant à la saisine de catégorisation de 8 espèces d’insectes exotiques incluant Xylotrechus chinensis »

Xylotrechus chinensis (XYLOCH) est un insecte longicorne originaire de la région paléarctique orientale (Chine, Corée du Nord, Corée du Sud, Japon et Taïwan) dont la présence a été signalée pour la première fois sur le territoire de l’Union européenne (UE) en Espagne (depuis 2013 en Catalogne, 2018 à Valence), en Grèce (depuis 2017 en Crète, 2019 à Athènes), en France (depuis 2017 en Occitanie, 2018 en Nouvelle-Aquitaine) et en Italie (depuis 2023 en Lombardie) où il cause des dégâts sur mûrier platane (Morus bombycis). Selon les données scientifiques fournies précédemment par l’Anses et dans un avis de l’EFSA publié en 2021 , cet organisme nuisible se développe préférentiellement dans les arbres de la famille des Moraceae (Morus alba, M. bombycis et M. australis). X. chinensis est inscrit depuis 2018 sur la liste d'alerte de l'OEPP . Dans son avis de 2021, l’EFSA indique que cet organisme remplit les critères pour être catégorisé comme organisme de quarantaine de l'Union européenne (UE) sans prendre en compte les éventuelles sous-espèces et en précisant comme autre source d'incertitude la réelle étendue de sa présence sur le territoire européen. Sur le territoire français X. chinensis a été classé temporairement comme organisme réglementé en 2022. Des actions de surveillance ont été conduites pour tenter de délimiter le périmètre des foyers observés et d’identifier les potentiels impacts. Des échanges ont eu lieu ultérieurement au niveau de l’UE concernant la possibilité de réglementer cet organisme sur le territoire de l’Union ; cette option n’a pas été retenue à ce stade compte tenu notamment des capacités de dispersion rapide de l’organisme nuisible et de son impact économique qui semble limité aux plantes du genre Morus. En France, la surveillance a mis en évidence des attaques sévères sur certains individus du genre Morus. Elle a également montré que les foyers concernent des surfaces importantes dans les régions de Sète et de Bordeaux; leur éradication ne semble pas réalisable d’autant qu’ils se situent dans des espaces urbanisés, ce qui complexifie la mise en œuvre de mesures de gestion. Pour autant, la mise en œuvre de mesures de lutte dans le but de maintenir un niveau de population le plus bas possible pour limiter les impacts et la propagation de l’organisme nuisible pourrait avoir du sens dans certains contextes compte tenu des éléments suivants : - les mûriers sont des arbres d’ornement dont la présence est relativement importante en particulier dans le sud de la France et certains de ces mûriers ont une valeur patrimoniale ; les foyers ont une surface encore limitée par rapport à l’aire de répartition des mûriers en France ; la gestion des arbres infestés peut représenter un enjeu de sécurité pour les municipalités ; même si jusqu’à présent, l’organisme n’a été identifié que sur mûrier dans l’UE, il n’est pas possible d’exclure à ce jour qu’il puisse s’attaquer à des espèces d’intérêt agronomique (des échanges sont en cours avec l’INRAE à ce sujet dans le but d’essayer de lever certaines incertitudes). (extrait)

ano.nymous@ccsd.cnrs.fr.invalid (Jean-Claude Gregoire) 18 Jun 2024

https://anses.hal.science/anses-04616086v1

[anses-04353534] Avis de l'Anses relatif à « la catégorisation de Xylotrechus chinensis »

Dans le cadre de la surveillance des organismes réglementés ou émergents (SORE), un dispositif de piégeage a été déployé par la DGAL en 2021 avec l’appui de l’INRAE et de l’ONF. L’objectif de ce dispositif est d’effectuer une surveillance passive dans les sites d’entrée potentiels (ports, aéroports, marchés d’intérêt national (MIN) des organismes réglementés ou émergents (SORE). Ce piégeage est qualifié de « large spectre » car il peut concerner plusieurs filières de production suivies dans le cadre de la SORE (forêts, jardins et espaces verts et infrastructures (JEVI), arboriculture fruitière) en ciblant cependant majoritairement les insectes coléoptères des ligneux. Les principes de la surveillance mise en œuvre s’appuient sur les résultats précédemment acquis dans le cadre du projet PORTRAP, utilisant des pièges génériques multi-composés pour la détection précoce d’insectes exotiques xylophages dans les sites potentiels d’entrée sur le territoire national. Les pièges ont été disposés sur 13 sites (7 ports maritimes, 1 port fluvial, 4 aéroports et 1 marché national) dispersés sur le territoire (France continentale). Au total 9279 individus appartenant à 110 espèces différentes ont été capturés. Aucune espèce d’insecte de quarantaine prioritaire n’a été piégée. En revanche, la présence d’individus appartenant à 8 espèces de coléoptères exotiques, a priori non répandues sur notre territoire, des familles Cerambycidae et Curculionidae (sous-familles des Scolytinae et Platypodinae) a été relevée. Les 8 espèces d’insectes exotiques sont les suivantes : Cerambycidae : Cordylomera spinicornis (Fabricius, 1775), Trichoferus campestris (Faldermann, 1835), Xylotrechus chinensis (Chevrolat, 1852), Xylotrechus stebbingi (Gahan, 1906) ; Curculionidae : Amasa sp. near truncata, Euplatypus hintzii (Schaufuss, 1897), Euplatypus parallelus (Fabricius, 1801), Xyleborus affinis Eichhoff, 1868. Ainsi, il est demandé la réalisation d’une catégorisation des 8 espèces d’insectes exotiques en utilisant les critères de risque listés ci-dessous, afin de déterminer leur nuisibilité et de prioriser sur cette base la réalisation d’analyses de risque portant sur ces insectes.

ano.nymous@ccsd.cnrs.fr.invalid (Jean-Claude Grégoire) 19 Dec 2023

https://anses.hal.science/anses-04353534v1

[hal-02675118] Characterization of five microsatellite loci in the pine shoot beetle Tomicus piniperda (Coleoptera : Scolytidae)

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Carole Kerdelhue) 31 May 2020

https://hal.inrae.fr/hal-02675118v1

[hal-02660852] Frequency and fitness cost of resistance to Bacillus thuringiensis in Chrysomela tremulae (Coleoptera: Chrysomelidae)

The ‘high dose–refuge’ (HDR) strategy is commonly recommended and currently used for delaying or preventing pest adaptation to transgenic plants producing Bacillus thuringiensis (Bt) toxins. The efficiency of this strategy depends, among other factors, on the initial frequency of Bt resistance alleles and on the fitness costs associated with these alleles. Two years ago, an allele conferring resistance to Bt poplar was detected in a French population of the poplar pest Chrysomela tremulae F. Although this pest had never been subjected to Bt selection pressure due to human activities, the frequency of this allele was estimated at 0.0037, with a 95% credible (CI) interval of 0.00045–0.0080. We investigated the frequency of this allele in a second sample of C. tremulae collected more than 500km from the site of the initial population. The estimated frequency in this sample was 0.0113 (95% CI 0.0031–0.0247), reinforcing the conclusion that resistance to Bt plants may be present at detectable frequencies in pest populations before selection resulting from pest management by humans. The frequency of the Bt resistance allele over the two samples was 0.0049 (95% CI 0.0020–0.0091). We also followed five laboratory lines in which the frequency of this allele was initially fixed at 0.500. After five generations maintained on non-Bt poplar leaves, the frequency of this allele decreased in all lines, whereas allelic frequencies at a neutral locus were unaffected. Thus, the Bt resistance allele detected in French populations of C. tremulae is probably associated with a fitness cost.

ano.nymous@ccsd.cnrs.fr.invalid (Anne-Laure Wenes) 30 May 2020

https://hal.inrae.fr/hal-02660852v1

[hal-01189778] Prendre en compte les arbres ornementaux pour mieux comprendre la perméabilité des paysages à la dispersion des ravageurs. Le cas des arbres hors forêt et de la chenille processionnaire du pin

Certaines essences forestières sont fortement utilisées en plantation ornementale et sont donc largement présentes en dehors des forêts. Nos travaux ont pour objectif de mieux comprendre la distribution spatiale des arbres hors forêt et leur impact sur la dispersion des organismes ravageurs. Nos résultats démontrent que les arbres hors forêt constituent un facteur de connectivité important et jouent donc un rôle crucial dans la dispersion des ravageurs. Nous présentons le cas de la chenille processionnaire du pin qui soulève d’importants problèmes phytosanitaires et de santé publique.

ano.nymous@ccsd.cnrs.fr.invalid (Jean-Pierre Rossi) 01 Sep 2015

https://hal.science/hal-01189778v1

[hal-02739378] Googling forest pests -Use of Google as a monitoring tool for delimiting the distributional range of forest pests

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Jérôme Rousselet) 02 Jun 2020

https://hal.inrae.fr/hal-02739378v1

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Nos publications

HAL : Dernières publications

[hal-05168055] Human contributions to global soundscapes are less predictable than the acoustic rhythms of wildlife

[hal-05057758] Exploring the taxonomic status of the Palearctic cone weevil, Pissodes validirostris, inferred from morphometric and molecular data

[hal-03846951] A large-scale dataset reveals taxonomic and functional specificities of wild bee communities in urban habitats of Western Europe

[anses-04608634] Avis de l'Anses relatif à « la catégorisation de Euplatypus hintzi »

[anses-04855184] Avis de L'Anses relatif à « la catégorisation de Trichoferus campestris »

[hal-01536447] Stay out (almost) all night contrasting responses in flight activity among tropical moth assemblages

[anses-04415035] Analyse des risques sanitaires liés à l’exposition aux chenilles émettrices de poils urticants et élaboration de recommandations de gestion

[hal-03419963] Functional and taxonomic responses of tropical moth communities to deforestation

[hal-04132693] The worldwide invasion history of a pest ambrosia beetle inferred using population genomics

[hal-04534667] Intraspecific niche models for the invasive ambrosia beetle Xylosandrus crassiusculus suggest contrasted responses to climate change

[hal-04947437] Recognition of the Pseudocryptic Species Xylosandrus declivigranulatus (Schedl) as Distinct from Xylosandrus crassiusculus (Motschulsky) (Coleoptera: Curculionidae: Scolytinae: Xyleborini)

[hal-02613924] DNA barcodes reveal deeply neglected diversity and numerous invasions of micromoths in Madagascar

[anses-04718536] Avis de l'Anses relatif à « la catégorisation de Amasa parviseta »

[hal-04236301] The evolutionary history of capital-breeding moths through the lens of wild silkmoths (Saturniidae) phylogenomics

[hal-03232080] Climate change impact on the potential geographical distribution of two invading Xylosandrus ambrosia beetles

[hal-02813484] Tâche 8 : Biomes forêts : filière bois et fibres. Livrable : Forêt Tempérée

[hal-02659519] Systematics of the Dioryctria abietella species group (Lepidoptera: Pyralidae) based on mitochondrial DNA

[hal-02325152] Potential spread of the invasive North American termite, Reticulitermes flavipes, and the impact of climate warming

[hal-03366792] Preventing invasions of Asian longhorn beetle and citrus longhorn beetle: are we on the right track?

[hal-04871434] Tracking the North American Asian Longhorned Beetle Invasion With Genomics

[hal-05117257] Approches en développement : prospectives sur la détection précoce

[hal-04171739] Les scolytes du genre Xylosandrus à la conquête de l'Europe

[hal-03211695] DNA barcoding for bio-surveillance of emerging pests and species identification in Afrotropical Prioninae (Coleoptera, Cerambycidae)

[hal-03045949] Grassland-to-crop conversion in agricultural landscapes has lasting impact on the trait diversity of bees

[hal-02640423] Species-Level Para- and Polyphyly in DNA Barcode Gene Trees: Strong Operational Bias in European Lepidoptera

[anses-05175671] Avis de l'Anses relatif à « la catégorisation de Cordylomera spinicornis »

[hal-05054582] Warmer and brighter winters than before: Ecological and public health challenges from the expansion of the pine processionary moth (Thaumetopoea pityocampa)

[hal-05117145] Comment quantifier et expliquer les aires de distribution et leur expansions ?

[hal-03655908] Studying hyperdiverse lepidopteran communities in French Guiana with DNA barcoding

[hal-02819728] Impacts of climate change on temperate forests and interaction with management

[hal-04506156] The pine processionary moth Thaumetopoea pityocampa (Notodontidae) species complex: a phylogeny-based revision

[hal-04171659] Contrasting invasion history in two ambrosia beetles of the Xylosandrus genus

[hal-04312053] Genome‐scale phylogeography resolves the native population structure of the Asian longhorned beetle, Anoplophora glabripennis (Motschulsky)

[hal-04672656] Building integrated plant health surveillance: a proactive research agenda for anticipating and mitigating disease and pest emergence

[hal-02670846] Initial frequency of alleles conferring resistance to Bacillus thuringiensis poplar in a field population of Chrysomela tremulae

[hal-02676697] Genetics of resistance to transgenic Bacillus thuringiensis poplars in the poplar leaf beetle, Chrysomela tremulae F. (Coleoptera: Chrysomelidae)

[hal-03593160] Genetic structure of European invasive populations of two Xylosandrus species

[hal-03123290] Comparative studies of egg parasitoids of the pine processionary moth (Thaumetopoea pityocampa, Den. &amp; Schiff.) in historic and expansion areas in France and Bulgaria

[hal-05388136] DAISIE - Inventory of alien invasive species in Europe

[hal-04171596] Dynamique d’expansion d’une population introduite de Xylosandrus crassiusculus (Coleoptera : Curculionidae) en France

[tel-04368466] Structure génétique et modélisation de la distribution des populations de deux espèces invasives de Xylosandrus (Scolytinae - Xyleborini) : deux espèces proches aux histoires d’invasion différentes

[hal-04498528] Dataset documenting prevalence and counts of pine processionary moth tents on local host trees in 3 regions of France with different climatic environments

[hal-04171626] Past, present and future potential geographical distribution of Xylosandrus crassiusculus in Europe

[hal-03609676] A first inference of the phylogeography of the worldwide invader Xylosandrus compactus

[anses-04616086] Avis de l'Anses relatif à « l’avenant à la saisine de catégorisation de 8 espèces d’insectes exotiques incluant Xylotrechus chinensis »

[anses-04353534] Avis de l'Anses relatif à « la catégorisation de Xylotrechus chinensis »

[hal-02675118] Characterization of five microsatellite loci in the pine shoot beetle Tomicus piniperda (Coleoptera : Scolytidae)

[hal-02660852] Frequency and fitness cost of resistance to Bacillus thuringiensis in Chrysomela tremulae (Coleoptera: Chrysomelidae)

[hal-01189778] Prendre en compte les arbres ornementaux pour mieux comprendre la perméabilité des paysages à la dispersion des ravageurs. Le cas des arbres hors forêt et de la chenille processionnaire du pin

[hal-02739378] Googling forest pests -Use of Google as a monitoring tool for delimiting the distributional range of forest pests

Dans cette rubrique

Les publications 2016

Les publications 2015

Les publications 2014

Les publications 2013

Les publications 2012

Les publications 2011

[hal-03123290] Comparative studies of egg parasitoids of the pine processionary moth (Thaumetopoea pityocampa, Den. & Schiff.) in historic and expansion areas in France and Bulgaria