Nos publications

[hal-02136833] Subterranean termites in the Centre-Val de Loire region: distribution patterns and invasion risks

This study presents research concerning subterranean termites found in the Centre-Val de Loire region. More specifically, we examined the geographical distribution of Reticulitermes flavipes, a globally invasive species. This work was conducted in collaboration with both social and life science specialists in order to better understand the factors mediating its spatial distribution. Using geomatics and the spatial analysis of R. flavipes' distribution, we were able to define geographical areas favorable to the termite. This geographical study and the diversity of players involved in this research underscore a growing awareness of termite invasion risks in society at large.

ano.nymous@ccsd.cnrs.fr.invalid (Dominique Andrieu) 26 May 2020

https://hal.science/hal-02136833v1

[hal-02653040] Permanent genetic resources added to molecular ecology resources database 1 august 2011-30 september 2011

This article documents the addition of 299 microsatellite marker loci and nine pairs of single-nucleotide polymorphism (SNP) EPIC primers to the Molecular Ecology Resources (MER) Database. Loci were developed for the following species: Alosa pseudoharengus, Alosa aestivalis, Aphis spiraecola, Argopecten purpuratus, Coreoleuciscus splendidus, Garra gotyla, Hippodamia convergens, Linnaea borealis,Menippe mercenaria,Menippe adina, Parus major, Pinus densiflora, Portunus trituberculatus, Procontarinia mangiferae, Rhynchophorus ferrugineus, Schizothorax richardsonii, Scophthalmus rhombus, Tetraponera aethiops, Thaumetopoea pityocampa, Tuta absoluta and Ugni molinae. These loci were cross-tested on the following species: Barilius bendelisis, Chiromantes haematocheir, Eriocheir sinensis, Eucalyptus camaldulensis, Eucalyptus cladocalix, Eucalyptus globulus, Garra litaninsis vishwanath, Garra para lissorhynchus, Guindilla trinervis, Hemigrapsus sanguineus, Luma chequen. Guayaba, Myrceugenia colchagu¨ensis, Myrceugenia correifolia, Myrceugenia exsucca, Parasesarma plicatum, Parus major, Portunus pelagicus, Psidium guayaba, Schizothorax richardsonii, Scophthalmus maximus, Tetraponera latifrons, Thaumetopoea bonjeani, Thaumetopoea ispartensis, Thaumetopoea libanotica, Thaumetopoea pinivora, Thaumetopoea pityocampa ena clade, Thaumetopoea solitaria, Thaumetopoea wilkinsoni and Tor putitora. This article also documents the addition of nine EPIC primer pairs for Euphaea decorata, Euphaea formosa, Euphaea ornata and Euphaea yayeyamana.

ano.nymous@ccsd.cnrs.fr.invalid (S.W. A'Hara) 29 May 2020

https://hal.inrae.fr/hal-02653040v1

[hal-05656151] A new species of seed-feeding Cuphodes Meyrick, 1897 (Lepidoptera, Gracillariidae) from South Africa

We describe a new species of Cuphodes Meyrick, 1897 (Lepidoptera: Gracillariidae) from South Africa, C. spermotrophus sp. nov., reared from fruits of Rhamnus prinoides L'Hér. (Rhamnaceae). This represents the first confirmed record of a seed-feeding Gracillariidae species from the African continent. The new species is distinguished from all known congeners by external morphology and male and female genitalia. Molecular data (COI barcode) confirm its distinctiveness and support its placement within Cuphodes. We provide diagnostic characters, illustrations of the adult and genitalia, and notes on its biology and host association. The discovery of this species expands the known feeding habits of Cuphodes, previously thought to include only leaf-mining species, and highlights the still largely unexplored trophic diversity of African Gracillariidae.

ano.nymous@ccsd.cnrs.fr.invalid (Paolo Triberti) 13 Jun 2026

https://hal.science/hal-05656151v1

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

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

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

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

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

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

[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-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-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-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-02852545] L'échantillonnage

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ano.nymous@ccsd.cnrs.fr.invalid (J. Vaillant) 08 Jun 2020

https://hal.inrae.fr/hal-02852545v1

[hal-04236239] Biodiversity of leaf-mining insects in a dry Mexican tropical forest and their responses to anthropogenic and natural disturbances

Tropical dry forests are an essential habitat for many endemic and threatened insects. Mexico has one of the best examples of this habitat in the neotropics which is severely under threat. Despite the ecological importance of insects, they are very rarely taken into account in conser-vation programs. Tropical leaf-mining insects are species diverse and easily sampled at larval stage within their leaf mines and immature stages can be identified using DNA barcoding. This makes leafminers ideal for understanding how plant-insect interactions vary along forest disturbance gradients and subsequent successional stages. Our aim is to explore and describe the diversity of leaf-mining insects and their interactions with their host plants and their responses to anthropogenic and natural disturbances in the Chamela-Cuixmala Biosphere Reserve and Huatulco National Park. We collected tenanted leaf mines along several disturbance and succession gradients. Immature stages were dissected out of the leaf mines and DNA barcoded. In addition, we analysed metabarcoding data from Malaise trap samples and pooled out any sequences belonging to insect genera with leaf-mining species. We found 509 OTU in the Chamela-Cuixmala Biosphere Reserve and 472 OTU in Huatulco National Park. Preliminary results suggest that species richness and abundance is higher in sites with an early forest succession in comparition with last forest succession. We found differences according to species composition related to successional stages. These differences were significant for sites in the Chamela-Cuixmala Biosphere Reserve. Our results show relation between leaf-mining insects in tropical dry forests and their possible importance in succession pathways.

ano.nymous@ccsd.cnrs.fr.invalid (Ariel Hernan Muñoz-Sanchez) 10 Oct 2023

https://hal.inrae.fr/hal-04236239v1

[hal-02663392] Phylogenetics and biogeography of a spectacular old world radiation of butterflies: the subtribe Mycalesina (Lepidoptera: Nymphalidae: Satyrini)

Background Butterflies of the subtribe Mycalesina (Nymphalidae: Satyrinae) are important model organisms in ecology and evolution. This group has radiated spectacularly in the Old World tropics and presents an exciting opportunity to better understand processes of invertebrate rapid radiations. However, the generic-level taxonomy of the subtribe has been in a constant state of flux, and relationships among genera are unknown. There are six currently recognized genera in the group. Mycalesis, Lohora and Nirvanopsis are found in the Oriental region, the first of which is the most speciose genus among mycalesines, and extends into the Australasian region. Hallelesis and Bicyclus are found in mainland Africa, while Heteropsis is primarily Madagascan, with a few species in Africa. We infer the phylogeny of the group with data from three genes (total of 3139 bp) and use these data to reconstruct events in the biogeographic history of the group. Results The results indicate that the group Mycalesina radiated rapidly around the Oligocene-Miocene boundary. Basal relationships are unresolved, but we recover six well-supported clades. Some species of Mycalesis are nested within a primarily Madagascan clade of Heteropsis, while Nirvanopsis is nested within Lohora. The phylogeny suggests that the group had its origin either in Asia or Africa, and diversified through dispersals between the two regions, during the late Oligocene and early Miocene. The current dataset tentatively suggests that the Madagascan fauna comprises two independent radiations. The Australasian radiation shares a common ancestor derived from Asia. We discuss factors that are likely to have played a key role in the diversification of the group. Conclusions We propose a significantly revised classification scheme for Mycalesina. We conclude that the group originated and radiated from an ancestor that was found either in Asia or Africa, with dispersals between the two regions and to Australasia. Our phylogeny paves the way for further comparative studies on this group that will help us understand the processes underlying diversification in rapid radiations of invertebrates.

ano.nymous@ccsd.cnrs.fr.invalid (Ullasa Kodandaramaiah) 31 May 2020

https://hal.inrae.fr/hal-02663392v1

[hal-02637388] The EASIN Editorial Board: quality assurance, exchange and sharing of alien species information in Europe

The European Alien Species Information Network (EASIN) aims to facilitate the exploration of alien species information in Europe, and is recognized as the information system supporting European Union Member States in the implementation of the recently published Invasive Alien Species Regulation. In this paper, we present the role and activities of the EASIN Editorial Board (EB), which is responsible for the quality assurance, safeguarding and constant improvement of EASIN. The EB is supported by a web platform that facilitates online discussions about alien species. This platform creates a virtual community by providing a forum-like interface that is moderated by the EB Members but is freely accessible to the scientific community and the general public. It allows all registered users to make comments, raise questions and share experience and expertise on alien species in Europe. Moreover, it provides a means for exchanging opinions and solving disputes in a transparent way. The overall EB activity is commonly agreed upon procedures and standards.

ano.nymous@ccsd.cnrs.fr.invalid (Konstantinos Tsiamis) 28 May 2020

https://hal.inrae.fr/hal-02637388v1

[hal-05651852] Introduced or established? Convergent evidence indicates imported pine wood nematode vectors occupy gaps in native distribution

<div><p>Monitoring regulated quarantine plant pathogens and, when relevant, their vectors is compulsory in the European Union. Local Monochamus species (Coleoptera, Cerambycidae) vector the pine wood nematode, Bursaphelenchus xylophilus, a non-native pest already established in most of Portugal. Only 29 M. galloprovincialis individuals were trapped in Belgium in ten years (2013-2022), despite a dense coverage of pheromone-baited traps, suggesting absence or a very rare local occurrence in the country. In the northern neighbouring countries, only one single established population is known in The Netherlands and one in Denmark. A species distribution model based on pheromone-trap catches (negative and positive) of M. galloprovincialis from 4,914 traps in 29 European countries between 2008 and 2019 was developed, using the overall climate conditions and the distribution of seven pine tree species as explanatory variables. The effect of spatial scale was tested with a multi-scale approach. With a 225*225 km spatial grain, the major explanatory variables were the mean diurnal temperature range and, to a lesser extent, the presence of Pinus spp. The model predicted a low probability of presence in Belgium, the Netherlands, Great Britain and north-western Germany compared to southern Europe. Genotyping allowed to conclude that at least some of the beetles caught in Belgium originated from foreign locations. All catches were located close to entry points, suggesting introduction with imported material. The small size of most of the Belgian pine stands may also explain the absence or apparently transient status, or rareness of Monochamus spp. This study thus suggests that surveys in Belgium should privilege entry points rather than local forest stands.</p></div>

ano.nymous@ccsd.cnrs.fr.invalid (Jean-Claude Grégoire) 10 Jun 2026

https://hal.inrae.fr/hal-05651852v1

[hal-01144571] THE 2014 ALMA LONG BASELINE CAMPAIGN: AN OVERVIEW

A major goal of the Atacama Large Millimeter/submillimeter Array (ALMA) is to make accurate images with resolutions of tens of milliarcseconds, which at submillimeter (submm) wavelengths requires baselines up to ~15 km. To develop and test this capability, a Long Baseline Campaign (LBC) was carried out from September to late November 2014, culminating in end-to-end observations, calibrations, and imaging of selected Science Verification (SV) targets. This paper presents an overview of the campaign and its main results, including an investigation of the short-term coherence properties and systematic phase errors over the long baselines at the ALMA site, a summary of the SV targets and observations, and recommendations for science observing strategies at long baselines. Deep ALMA images of the quasar 3C138 at 97 and 241 GHz are also compared to VLA 43 GHz results, demonstrating an agreement at a level of a few percent. As a result of the extensive program of LBC testing, the highly successful SV imaging at long baselines achieved angular resolutions as fine as 19 mas at ~350 GHz. Observing with ALMA on baselines of up to 15 km is now possible, and opens up new parameter space for submm astronomy.

ano.nymous@ccsd.cnrs.fr.invalid (Alma Partnership) 22 Apr 2015

https://hal.science/hal-01144571v1

[hal-05546422] DATASAPROX: standardised dataset from protocolled sampling of saproxylic beetles in continental France and Corsica

As part of the DATASAPROX project, we created an occurrence dataset of the saproxylic beetles from continental France and Corsica focused on protocolled data from flight interception traps. For this, we solicited the main national data producers and collected their raw data as well as the associated trapping metadata (e.g. type of trap). Once retrieved, all data went through selection and reformatting steps, including the removal of duplicates between datasets and the standardisation of taxonomic information according to the TAXREF v.18 format. We considered data from specific aerial interception traps: crossed window (©Polytrap, ©Pimul, ©Crosstrap, ©Portrap), multi-funnel (Lindgren) and window (single glass) traps. We aggregated a dataset constituting 675,525 records from 21 data producers and providers, including 485 identified projects. This dataset includes a total of 71 families, 153 subfamilies, 738 genera and 2039 species of saproxylic beetles. Data points encompass all 96 counties from continental France and Corsica for a total of 8969 geographic points and 66,202 samples. This new standardised dataset on saproxylic beetles offers new opportunities for ecological studies and conservation applications.

ano.nymous@ccsd.cnrs.fr.invalid (Christopher Bosc) 10 Mar 2026

https://hal.science/hal-05546422v1

[hal-05485107] From forest decline to salvage logging: cascading impacts on saproxylic beetle diversity

Understanding the cascading effects of forest decline on saproxylic communities is fundamental for optimizing the management of disturbed forests toward biodiversity conservation objectives. We postulated that the nature and intensity of cascading pathways would vary along decline gradients, encompassing stages from stand decline to mortality and subsequent salvage logging, as mediated by shifts in habitat conditions and resource availability. This study was conducted across three representative European forest contexts: fir forests in the French Pyrenees, spruce forests in the Bavarian Alps, and oak forests in the lowlands of the Loire Valley. Within these systems, we assessed how the taxonomic and functional α-diversity of saproxylic beetles responded to variations in both the diversity and density of deadwood and tree-related microhabitats (TreMs). Our analyses identified key cascading effects of stand decline and mortality that were shaped by the considered beetle guild and by the forest type, reflecting tree species–specific disturbance legacies. Stand decline and mortality produced distinct responses within saproxylic beetle assemblages, as different successional guilds preferentially utilized either dying or dead trees. The overall influence of decline processes was positive in conifer-dominated forests. TreMs played a central role in mediating cascading processes structuring saproxylic beetle communities throughout the forest decline continuum. The increase in TreM heterogeneity associated with stand decline or mortality enhanced saproxylic diversity, with exposed wood and trunk injuries identified as particularly influential microhabitats. Snags and large deadwood elements, especially in spruce forests, and deadwood diversity further contributed to sustaining high levels of beetle diversity. Conversely, salvage logging exerted detrimental effects on numerous guilds, primarily through reductions in TreM diversity, decreased TreM trait dispersion, and the depletion of saproxylic TreMs. Given the pronounced context dependency of the processes driving these cascading community dynamics, and considering the increasing frequency, severity, and spatial extent of forest disturbances and global forest decline, it is imperative to integrate this complexity into management and conservation frameworks. Addressing these mechanisms with greater precision will be critical for maintaining functional biodiversity within rapidly changing forest ecosystems.

ano.nymous@ccsd.cnrs.fr.invalid (Jérémy Cours) 30 Jan 2026

https://hal.inrae.fr/hal-05485107v1

[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

[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

[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

[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-02626202] Developing a framework of minimum standards for the risk assessment of alien species

1. Biological invasions are a threat to biodiversity, society and the economy. There is an urgent need to provide evidence- based assessments of the risks posed by invasive alien species (IAS) to prioritize action. Risk assessments underpin IAS policies in many ways: informing legislation; providing justification of restrictions in trade or consumer activities; prioritizing surveillance and rapid response. There are benefits to ensuring consistency in content of IAS risk assessments globally, and this can be achieved by providing a framework of minimum standards as a checklist for quality assurance. 2. From a review of existing risk assessment protocols, and with reference to the requirements of the EU Regulation on IAS (1143/2014) and international agreements including the World Trade Organisation, Convention on Biological Diversity and International Plant Protection Convention, coupled with consensus methods, we identified and agreed upon 14 minimum standards (attributes) a riskassessment scheme should include. 3. The agreed minimum standards were as follows: (1) basic species description; (2) likelihood of invasion; (3) distribution, spread and impacts; (4) assessment of introduction pathways; (5) assessment of impacts on biodiversity and ecosystems; (6) Assessment of impact on ecosystem services; (7) assessment of socio-economic impacts; (8) consideration of status (threatened or protected) of species or habitat under threat; (9) assessment of effects of future climate change; (10) completion possible even when there is a lack of information; (11) documents information sources; (12) provides a summary in a consistent and interpretable form; (13) -includes uncertainty; (14) includes quality assurance. In deriving these minimum standards, gaps in knowledge required for completing risk assessments and the scope of existing risk assessment protocols were revealed, most notably in relation to assessing benefits, socio-economic impacts and impacts on ecosystem services but also inclusion of consideration of climate change. 4. Policy implications. We provide a checklist of components that should be within invasive alien species risk assessments and recommendations to develop risk assessments to meet these proposed minimum standards. Although inspired by implementation of the European Union Regulation on invasive alien species, and as such developed specifically within a European context, the derived framework and minimum standards could be applied globally.

ano.nymous@ccsd.cnrs.fr.invalid (Helen E. Roy) 26 May 2020

https://hal.inrae.fr/hal-02626202v1

[hal-02650797] An extreme case of plant-insect codiversification: figs and fig-pollinating wasps

It is thought that speciation in phytophagous insects is often due to colonization of novel host plants, because radiations of plant and insect lineages are typically asynchronous. Recent phylogenetic comparisons have supported this model of diversification for both insect herbivores and specialized pollinators. An exceptional case where contemporaneous plant-insect diversification might be expected is the obligate mutualism between fig trees (Ficus species, Moraceae) and their pollinating wasps (Agaonidae, Hymenoptera). The ubiquity and ecological significance of this mutualism in tropical and subtropical ecosystems has long intrigued biologists, but the systematic challenge posed by >750 interacting species pairs has hindered progress toward understanding its evolutionary history. In particular, taxon sampling and analytical tools have been insufficient for large-scale cophylogenetic analyses. Here, we sampled nearly 200 interacting pairs of fig and wasp species from across the globe. Two supermatrices were assembled: on an average, wasps had sequences from 77% of 6 genes (5.6 kb), figs had sequences from 60% of 5 genes (5.5 kb), and overall 850 new DNA sequences were generated for this study. We also developed a new analytical tool, Jane 2, for event-based phylogenetic reconciliation analysis of very large data sets. Separate Bayesian phylogenetic analyses for figs and fig wasps under relaxed molecular clock assumptions indicate Cretaceous diversification of crown groups and contemporaneous divergence for nearly half of all fig and pollinator lineages. Event-based cophylogenetic analyses further support the codiversification hypothesis. Biogeographic analyses indicate that the present-day distribution of fig and pollinator lineages is consistent with a Eurasian origin and subsequent dispersal, rather than with Gondwanan vicariance. Overall, our findings indicate that the fig-pollinator mutualism represents an extreme case among plant-insect interactions of coordinated dispersal and long-term codiversification.

ano.nymous@ccsd.cnrs.fr.invalid (Astrid Cruaud) 29 May 2020

https://hal.inrae.fr/hal-02650797v1

[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-02809303] Impact of the Western conifer seed bug, Leptoglossus occidentalis on major European conifers: Example of Pinus nigra

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Vincent Lesieur) 06 Jun 2020

https://hal.inrae.fr/hal-02809303v1

[hal-02739664] European invasion of the Western conifer seed bug: so what happened?

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Vincent Lesieur) 03 Jun 2020

https://hal.inrae.fr/hal-02739664v1

[tel-02800461] Invasion de la punaise américaine Leptoglossus occidentalis en Europe: Une contribution à la compréhension des invasions fulgurantes

Les dernières décennies représentent un tournant majeur concernant les invasions biologiques avec une augmentation sans précédent de leur rythme et de leur ampleur, en lien direct avec les activités humaines, en particulier la mondialisation. Certains invasifs se propagent à une vitesse très rapide dans leur nouveau milieu. L’invasion européenne de la punaise Leptoglossus occidentalis, illustre parfaitement ce phénomène et offre un modèle d’étude particulièrement intéressant. Cette thèse a pour but de tester des hypothèses permettant d’expliquer la rapidité de cette invasion. Pour répondre à cet objectif, nous avons choisi d’utiliser une approche pluridisciplinaire combinant des études de génétique des populations (natives et introduites) à des études de biologie et d’écologie des populations invasives. Grâce à l’utilisation de marqueurs moléculaires et de méthodes Bayésiennes (ABC), nous démontrons que l’invasion en Europe suit un scénario " tête de pont ", au sens où la population invasive de l’Est de l’Amérique du Nord a servi de source pour l’invasion européenne. Nos résultats confirment les soupçons d’introductions multiples dans des zones géographiquement déconnectées. En outre, l’étude de génétique des populations, associée aux mesures expérimentales des capacités de vol, indique que les capacités intrinsèques de dispersion de cette espèce sont particulièrement élevées. Les conditions rencontrées en Europe par les populations introduites ne sont pas un frein à l’invasion. L’espèce s’accommode parfaitement des nouvelles essences de conifères rencontrées sur le continent. La polyphagie observée dans la zone native est confirmée dans la zone d’introduction européenne, constituant un atout pour l’établissement des populations. De plus, cette étude révèle les risques écologiques que cette espèce représente pour la flore native européenne. Les dégâts occasionnés semblent s’additionner à ceux des ravageurs natifs, diminuant ainsi le potentiel de régénération naturelle. L’ensemble de ces résultats constitue une contribution à la connaissance des mécanismes sous-tendant les invasions biologiques, notamment sur la rapidité de propagation de certains invasifs, et met l’accent sur des phénomènes sous-estimés il y a encore peu de temps comme le scénario d’invasion " tête de pont ".

ano.nymous@ccsd.cnrs.fr.invalid (Vincent Lesieur) 05 Jun 2020

https://hal.inrae.fr/tel-02800461v1

[hal-02634224] The invasive Leptoglossus seed bug, a threat for commercial seed crops, but for conifer diversity?

Among the recent introductions of alien insects in Europe, the polyphagous western conifer seed bug, Leptoglossus occidentalis Heidemann (Heteroptera; Coreidae) can seriously be regarded as a major threat for all the European conifer forests. In the current study combining laboratory and field experimentations, we characterized first bug damage by developing specific damage categories on seeds of different conifer species by the use of X-ray. Secondly, we investigated the impact of the invasive bug on key conifer species used for afforestation in Western and Central Europe. For this purpose, we performed germination tests on predated seeds which revealed that even light damage (consumption of <1/3 of the whole seed content) strongly reduced the germination capability of the seed. We also compared the impact of feeding on the proportion of filled seeds. Second year cones of Pinus sylvestris and Pinus nigra have been enclosed and offered to different life stages (nymphs and adults) and the results showed a significant reduction of filled seeds whatever the life stage. In field, we annually surveyed the bug seed damage for six different conifer species planted in southwestern French seed orchards. Taking into account the economic value of improved seeds in seed orchards, economic impact of bug damage was important although never exceeded 25 %. Two natural or semi-natural alpine pine stands were also surveyed and appeared to be highly affected by the bug (up to 70 % of damaged seeds). Therefore, bug damage could also be considered as a serious threat for seed production in natural stands.

ano.nymous@ccsd.cnrs.fr.invalid (Vincent Lesieur) 27 May 2020

https://hal.inrae.fr/hal-02634224v1

[hal-02740802] Tracing a Fast European Invasion: The Case of the Western Conifer Seed Bug (Leptoglossus occidentalis)

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Vincent Lesieur) 03 Jun 2020

https://hal.inrae.fr/hal-02740802v1

[hal-02745159] A bridgehead effect in the invasion of the Western conifer seed bug in Europe?

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Vincent Lesieur) 03 Jun 2020

https://hal.inrae.fr/hal-02745159v1

[hal-02640785] Isolation and characterization of 11 polymorphic microsatellite markers in the highly invasive Western conifer seed bug, Leptoglossus occidentalis (Heteroptera, Coreidae)

Eleven polymorphic microsatellite markers were developed from enriched DNA libraries for the invasive Western conifer seed bug, Leptoglossus occidentalis. The number of alleles ranged from 2 to 11 and observed heterozygosities from 0.038 to 0.933. Additional results of cross-species amplifications are reported for two congeneric species. This set of microsatellite markers, the first one available for L. occidentalis, enables further investigations of population structure of this species which represents a serious threat for European conifer regeneration.

ano.nymous@ccsd.cnrs.fr.invalid (Vincent Lesieur) 28 May 2020

https://hal.inrae.fr/hal-02640785v1

[hal-03464437] A comparative genomic approach using mouse and fruit fly data to discover genes involved in testis function in hymenopterans with a focus on Nasonia vitripennis

Abstract Background Spermatogenesis appears to be a relatively well-conserved process even among distantly related animal taxa such as invertebrates and vertebrates. Although Hymenopterans share many characteristics with other organisms, their complex haplodiploid reproduction system is still relatively unknown. However, they serve as a complementary insect model to Drosophila for studying functional male fertility. In this study, we used a comparative method combining taxonomic, phenotypic data and gene expression to identify candidate genes that could play a significant role in spermatogenesis in hymenopterans. Results Of the 546 mouse genes predominantly or exclusively expressed in the mouse testes, 36% had at least one ortholog in the fruit fly. Of these genes, 68% had at least one ortholog in one of the six hymenopteran species we examined. Based on their gene expression profiles in fruit fly testes, 71 of these genes were hypothesized to play a marked role in testis function. Forty-three of these 71 genes had an ortholog in at least one of the six hymenopteran species examined, and their enriched GO terms were related to the G2/M transition or to cilium organization, assembly, or movement. Second, of the 379 genes putatively involved in male fertility in Drosophila, 224 had at least one ortholog in each of the six Hymenoptera species. Finally, we showed that 199 of these genes were expressed in early pupal testis in Nasonia vitripennis ; 86 exhibited a high level of expression, and 54 displayed modulated expression during meiosis. Conclusions In this study combining phylogenetic and experimental approaches, we highlighted genes that may have a major role in gametogenesis in hymenopterans; an essential prerequisite for further research on functional importance of these genes.

ano.nymous@ccsd.cnrs.fr.invalid (Charlotte Lécureuil) 06 Sep 2022

https://hal.inrae.fr/hal-03464437v1

[hal-05499984] Guix-HPC Activity Report 2025

<div><p>Guix-HPC is a collaborative effort to bring reproducible software deployment to scientific workflows and high-performance computing (HPC). Guix-HPC builds upon the GNU Guix software deployment tools and aims to make them useful for HPC practitioners and scientists concerned with dependency graph control and customization and, uniquely, reproducible research.</p> <p>Guix-HPC started as a joint software development project involving three research institutes: Inria , the Max Delbrück Center for Molecular Medicine (MDC) and the Utrecht Bioinformatics Center (UBC). Guix for HPC and reproducible research has since received contributions from many individuals and organizations, including CNRS , Université Paris Cité , the University of Tennessee Health Science Center (UTHSC), Cornell University, and AMD. HPC remains a conservative domain but over the years, we have reached out to many organizations and people who share our goal of improving upon the status quo when it comes to software deployment.</p> <p>This report—our eighth report!—highlights key achievements of Guix-HPC between our previous report a year ago and today, February 2026. This year was marked by exciting developments for HPC and reproducible workflows. Significant advances were made in integrating Guix into the complex software landscape of HPC, taking the roles of software manager, workflow execution engine, backend for generating container images, or provider for the complete operating system layer. </p> <p>This year was also marked by the migration to Codeberg, a non-profit and community-led European platform whose main objective is to facilitate the expansion of the contributor community. Finally, support for reproducing computations from the past was also much improved. And, as usual, we have been using Guix for research, and teaching other researchers how to get started. </p></div>

ano.nymous@ccsd.cnrs.fr.invalid (Céline Acary-Robert) 09 Feb 2026

https://hal.science/hal-05499984v1

[hal-05521279] Multi-colored traps can enhance monitoring programs for native and non-native longhorn beetles in forest ecosystems

<div><p>Longhorn beetles (Coleoptera: Cerambycidae) are one of the most diverse families of beetles worldwide and they play critical roles in forest environments. Monitoring longhorn beetles is essential for both conservation and pest management, and baited traps are widely used for this purpose. Longhorn beetle species vary in their visual ecology and are attracted to different trap colors. A way to optimize trapping efficiency could be to combine multiple colors on a single trap, so to create a trap that captures multiple species at once. To test this approach, we carried out seven trapping experiments in Europe and North America, comparing the effectiveness of a multicolored trap against single-colored black, red, white, and yellow traps at whole family, subfamily, and species level. At most sites, multi-colored traps captured significantly more species and individuals than black, red, and/ or yellow traps. At the subfamily level, at most sites, multi-colored traps were equally or more effective than single-colored traps for Cerambycinae and Lamiinae. For Lepturinae, multi-colored traps were generally significantly more effective than black or red traps, but significantly less effective than white traps. Responses varied among species. Overall, our study suggests that the use of multi-colored traps can improve monitoring programs for longhorn beetles, supporting both faunistic surveys and early detection efforts targeting non-native species.</p></div>

ano.nymous@ccsd.cnrs.fr.invalid (Laura Besana) 20 Feb 2026

https://hal.inrae.fr/hal-05521279v1

[hal-03302392] Are Invasive Patterns of Non-native Insects Related to Woody Plants Differing Between Europe and China?

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Alain Roques) 27 Jul 2021

https://hal.inrae.fr/hal-03302392v1

[hal-03626645] Environnement et être humain : ce que la chenille processionnaire nous dit de nos sociétés

Les processionnaires sont des insectes urticants et défoliateurs posant de plus en plus de problèmes en santé humaine, animale et végétale. Cette augmentation de leurs impacts est liée au fait que leurs populations deviennent localement plus abondantes ou colonisent des territoires où elles étaient précédemment absentes. Notre environnement nous apparait alors altéré et hostile. En fait, changement climatique, intensification des échanges commerciaux, urbanisation sont des phénomènes planétaires qui modifient l’équilibre des écosystèmes. Le simple achat d’une plante d’ornement peut être à la base d’un changement imperceptible mais durable de l’environnement. C’est ce que nous disent ces chenilles.

ano.nymous@ccsd.cnrs.fr.invalid (Jérôme Rousselet) 31 Mar 2022

https://hal.inrae.fr/hal-03626645v1

[hal-03626740] Forest pest dispersal outside forests in the context of global changes

Trees outside forests constitute a prominent feature of either agricultural lands or built-up areas that was overlooked for a long time. Their benefits and services are numerous and now increasingly acknowledged, but they can also provide disservices, especially in the context of global changes. While the number of paddock trees tended to decrease in long-standing industrialized countries because of mechanisation of agriculture and urban growth, the number of ornamental trees has strongly increased. For instance, French households buy and plant 50 millions of trees and shrubs every year (roughly as many as foresters plant trees). It is well documented that intensification of ornamental plant trade has promoted biological invasions through inter- and intra-continental accidental transport of exotic species. Moreover, cities with their street, park and garden trees constitute a common entry point where urban heat islands can facilitate the establishment. In Europe, in addition to the increase in the number of alien species, there is an increase in spread rates over time, especially for species arrived after 1990. The box tree moth is a good example of the role of intra-continental trade in rapid expansion. Lastly, structural changes in horticultural industry and changes in household demand have also affected landscape connectivity for both alien and native forest pest species, but quantification remains a difficult task. We addressed this issue using the pine processionary moth as a model species. Its larval colonies are readily detectable in the field and it is expanding northward across both forest and non forest lands because of climate warming. We set up a multidisciplinary approach including spatial modelling, flight mill experiments and landscape genetics in order to assess the role of trees outside forests in its range expansion.

ano.nymous@ccsd.cnrs.fr.invalid (Jérôme Rousselet) 31 Mar 2022

https://hal.inrae.fr/hal-03626740v1

[hal-03626702] Automatisation du suivi de la phénologie de la processionnaire du pin

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Louis Gross) 31 Mar 2022

https://hal.inrae.fr/hal-03626702v1

[hal-03700534] Drought-induced forest dieback increases taxonomic, functional, and phylogenetic diversity of saproxylic beetles at both local and landscape scales

Context: Many forest ecosystems around the world are facing increasing drought-induced dieback, causing mortality patches across the landscape at multiple scales. This increases the supply of biological legacies and differentially affects forest insect communities. Objectives; We analysed the relative effects of local-and landscape-level dieback on local saproxylic beetle assemblages. We assessed how classical concepts in spatial ecology (e.g., habitat-amount and habitat-patch hypotheses) are involved in relationships between multi-scale spatial patterns of available resources and local communities. Methods: We sampled saproxylic beetle assemblages in commercial fir forests in the French highlands. Through automatic aerial mapping, we used percentage of dead tree crown pixels to assess dieback levels at several nested spatial scales. We analysed beetle taxonomic, phylogenetic and functional diversity related to differing levels of multi-scale dieback. Results: We found that taxonomic, functional, and phylogenetic diversity of saproxylic beetle assemblages significantly benefitted from forest dieback, at both local and landscape scales. We detected significant effects in the multiplicative models combining local and landscape variables only for phylogenetic diversity. Increased landscape-scale dieback also caused a functional specialisation of beetle assemblages, favouring those related to large and welldecayed deadwood. Conclusions: Increasing tree mortality under benign neglect provides conservation benefits by heterogenising the forest landscape and enhancing deadwood habitats. Legacy retention practices could take advantage of unharvested, declining forest stands to promote species richness and functional diversity within conventionally managed forest landscapes.

ano.nymous@ccsd.cnrs.fr.invalid (Jérémy Cours) 07 Jun 2024

https://hal.inrae.fr/hal-03700534v1

[hal-03750402] DNA metabarcoding of passive trap collection media for forest insect biomonitoring

Insect decline has been increasingly reported in the past years due to global change. Large-scale biomonitoring has thus become necessary to better understand the dynamics of insect communities and to preserve their essential role in ecosystem functioning. In that sense, coupling high-throughput sequencing and DNA metabarcoding has exponentially increased our potentiality to monitor insect communities over wider geographic regions and time scales. However, biomonitoring of entomofauna using molecular tools often results in destructive DNA extraction through voucher grinding, impeding primordial morphological backup. Here, we filter unprocessed collection medium to assess insect communities through environmental DNA metabarcoding. We demonstrate that recovered communities are different yet complementary and that insect response to environmental changes remains similar to homogenate bulk metabarcoding. We also show that insect orders-by their contrasting sclerotization ratio-, and collection medium type, are unequal in yielding metabarcoding results. Overall, we believe it as an efficient alternative for biomonitoring insect response to ecological changes while preserving insect vouchers for identification and description, especially in tropical regions were singletons or undescribed species can be very common in trap samples.

ano.nymous@ccsd.cnrs.fr.invalid (Lucas Sire) 12 Aug 2022

https://hal.inrae.fr/hal-03750402v1

[hal-03592803] Le changement climatique, d’ores et déjà une réalité

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Alain Roques) 01 Mar 2022

https://hal.inrae.fr/hal-03592803v1

[hal-03475845] Drought-induced forest dieback increases taxonomic and functional diversity but not phylogenetic diversity of saproxylic beetles at both local and landscape scales

Context: Forest ecosystems worldwide are facing increasing drought-induced dieback, causing mortality patches across the landscape at multiple scales. This increases the supply of biological legacies and differentially affects forest insect communities. Objectives: We analysed the relative effects of local- and landscape-level dieback on local saproxylic beetle assemblages. We assessed how classic concepts in spatial ecology (e.g. habitat-amount and habitat-patch hypotheses) are involved in relationships between multi-scale spatial patterns of available resources and local communities. Methods: We sampled saproxylic beetle assemblages in commercial fir forests in the French highlands. Through automatic aerial mapping, we used dead tree crowns to assess dieback levels at several nested spatial scales. We analysed beetle taxonomic, phylogenetic and functional diversity related to differing levels of multi-scale dieback. Results: In line with the habitat-amount hypothesis, taxonomic and functional diversity, but not phylogenetic diversity, of beetle assemblages significantly benefitted from forest dieback, at both local and landscape scales. Very few single or interaction effects were detected in the multiplicative models combining local and landscape variables, though a significant positive effect of landscape-scale dieback on the abundance of cavity- and fungus-dwelling species was consistent with a spill-over effect. Increased landscape-scale dieback also caused a functional specialisation of beetle assemblages, favouring those related to large-diameter, well-decayed deadwood. Conclusions: Increasing tree mortality under benign neglect provides conservation benefits by heterogenising the forest landscape and enhancing deadwood habitats. Legacy retention practices could take advantage of unharvested, declining forest stands to promote species richness and functional diversity within conventionally managed forest landscapes.

ano.nymous@ccsd.cnrs.fr.invalid (Jérémy Cours) 11 Dec 2021

https://hal.inrae.fr/hal-03475845v1

[hal-04169150] Non-destructive DNA metabarcoding of arthropods using collection medium from passive traps

Broad-scale monitoring of arthropods is often carried out with passive traps ( e.g . Malaise traps) that can collect thousands of specimens per sample. The identification of individual specimens requires time and taxonomic expertise, limiting the geographical and temporal scale of research and monitoring studies. DNA metabarcoding of bulk-sample homogenates is faster and has been found to be efficient and reliable, but is destructive and prevents a posteriori validation of species occurrences and/or relative abundances. Non-destructive DNA metabarcoding from the collection medium has been applied in a limited number of studies, but further tests of efficiency are required in a broader range of circumstances to assess the consistency of the method. Methods We quantified the detection rate of arthropod species when applying non-destructive DNA metabarcoding with a short (127-bp) fragment of mitochondrial COI on two types of passive traps and collection media: 1) water with monopropylene glycol (H 2 O–MPG) used in window-flight traps (WFT, 53 in total); 2) ethanol with monopropylene glycol (EtOH–MPG) used in Malaise traps (MT, 27 in total). We then compared our results with those obtained for the same samples using morphological identification (for WFTs) or destructive metabarcoding of bulk homogenate (for MTs). This comparison was applied as part of a larger study of arthropod species richness in silver fir ( Abies alba ) stands across a range of climate-induced tree dieback levels and forest management strategies. Results Of the 53 H 2 O-MPG samples from WFTs, 16 produced no metabarcoding results, while the remaining 37 samples yielded 77 arthropod MOTUs in total. None of those MOTUs were shared species with the 389 morphological taxa (343 of which were Coleoptera) obtained from the same traps. Metabarcoding of 26 EtOH–MPG samples from MTs detected more arthropod MOTUs (233) and insect orders (11) than destructive metabarcoding of homogenate (146 MOTUs, 8 orders). Arachnida and Collembola were more diverse in EtOH-MPG samples, but Hymenoptera, Coleoptera and Lepidoptera were less represented than in homogenate. Overall, MOTU richness per trap similar for EtOH–MPG (21.81 MOTUs) than for homogenate (32.4 MOTUs). Arthropod communities from EtOH–MPG and homogenate metabarcoding were relatively distinct, with 162 MOTUs (53%) unique to the collection medium and only 71 MOTUs (23%) present in both treatments. Finally, collection medium did not reveal any significant changes in arthropod richness along a disturbance gradient in silver fir forests. We conclude that DNA metabarcoding of collection medium can be used to complement homogenate metabarcoding in inventories to favour the detection of soft-bodied arthropods like spiders.

ano.nymous@ccsd.cnrs.fr.invalid (Lucas Sire) 24 Jul 2023

https://hal.inrae.fr/hal-04169150v1

[hal-04236326] Recent and potentially ongoing invasion of lepidopteran genomes by a helitron

A large part of eukaryotic genomes is composed of inactivated mobile elements (TEs for Transposable Elements), corresponding to remnants of ancient waves of TE invasions. TEs also play a very important role in adaptation to new ecological conditions. The most famous example is the industrial melanism of the peppered moth: the black color has been shown to result from the insertion of a transposon within a gene. Considerable progress in sequencing approaches now makes it possible to assemble TE-rich regions within genomes. We found that a TE of the helitron type secreted in the genital fluid of a parasitoid wasp is present as identical copies in the genome of 5 Lepidopteran species sequenced by the Darwinian tree of life project from specimens collected in UK, suggesting a recent wave of introduction of this TE in Lepidoptera. We hypothesize that increase of parasitoid introductions worldwide could, as for viral infections, increase the rate of TE invasions, and play a role in populations decline. We recently amplified the helitron from specimens collected in France indicating that the spread of this TE is not limited to UK. We will map the extent of the invasion in the geographical range of the species Pararge aegeria and Polyommatus icarus, in particular in areas where these species have been recently introduced such as Madeira island (P. aegeria) and Québec (P. icarus) since founders of the current populations could have been introduced before helitron spread, thus allowing an approximate dating of the epidemic.

ano.nymous@ccsd.cnrs.fr.invalid (Jean-Michel Drezen) 10 Oct 2023

https://hal.inrae.fr/hal-04236326v1

[hal-04236377] Detection of invasive xylophagous beetles using metabacoding technologies

[...]

ano.nymous@ccsd.cnrs.fr.invalid (Lois Veillat) 10 Oct 2023

https://hal.inrae.fr/hal-04236377v1

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Nos publications

HAL : Dernières publications

[hal-02136833] Subterranean termites in the Centre-Val de Loire region: distribution patterns and invasion risks

[hal-02653040] Permanent genetic resources added to molecular ecology resources database 1 august 2011-30 september 2011

[hal-05656151] A new species of seed-feeding Cuphodes Meyrick, 1897 (Lepidoptera, Gracillariidae) from South Africa

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

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

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

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

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

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

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

[hal-02852545] L'échantillonnage

[hal-04236239] Biodiversity of leaf-mining insects in a dry Mexican tropical forest and their responses to anthropogenic and natural disturbances

[hal-02663392] Phylogenetics and biogeography of a spectacular old world radiation of butterflies: the subtribe Mycalesina (Lepidoptera: Nymphalidae: Satyrini)

[hal-02637388] The EASIN Editorial Board: quality assurance, exchange and sharing of alien species information in Europe

[hal-05651852] Introduced or established? Convergent evidence indicates imported pine wood nematode vectors occupy gaps in native distribution

[hal-01144571] THE 2014 ALMA LONG BASELINE CAMPAIGN: AN OVERVIEW

[hal-05546422] DATASAPROX: standardised dataset from protocolled sampling of saproxylic beetles in continental France and Corsica

[hal-05485107] From forest decline to salvage logging: cascading impacts on saproxylic beetle diversity

[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 »

[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 »

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

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

[hal-02626202] Developing a framework of minimum standards for the risk assessment of alien species

[hal-02650797] An extreme case of plant-insect codiversification: figs and fig-pollinating wasps

[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-02809303] Impact of the Western conifer seed bug, Leptoglossus occidentalis on major European conifers: Example of Pinus nigra

[hal-02739664] European invasion of the Western conifer seed bug: so what happened?

[tel-02800461] Invasion de la punaise américaine Leptoglossus occidentalis en Europe: Une contribution à la compréhension des invasions fulgurantes

[hal-02634224] The invasive Leptoglossus seed bug, a threat for commercial seed crops, but for conifer diversity?

[hal-02740802] Tracing a Fast European Invasion: The Case of the Western Conifer Seed Bug (Leptoglossus occidentalis)

[hal-02745159] A bridgehead effect in the invasion of the Western conifer seed bug in Europe?

[hal-02640785] Isolation and characterization of 11 polymorphic microsatellite markers in the highly invasive Western conifer seed bug, Leptoglossus occidentalis (Heteroptera, Coreidae)

[hal-03464437] A comparative genomic approach using mouse and fruit fly data to discover genes involved in testis function in hymenopterans with a focus on Nasonia vitripennis

[hal-05499984] Guix-HPC Activity Report 2025

[hal-05521279] Multi-colored traps can enhance monitoring programs for native and non-native longhorn beetles in forest ecosystems

[hal-03302392] Are Invasive Patterns of Non-native Insects Related to Woody Plants Differing Between Europe and China?

[hal-03626645] Environnement et être humain : ce que la chenille processionnaire nous dit de nos sociétés

[hal-03626740] Forest pest dispersal outside forests in the context of global changes

[hal-03626702] Automatisation du suivi de la phénologie de la processionnaire du pin

[hal-03700534] Drought-induced forest dieback increases taxonomic, functional, and phylogenetic diversity of saproxylic beetles at both local and landscape scales

[hal-03750402] DNA metabarcoding of passive trap collection media for forest insect biomonitoring

[hal-03592803] Le changement climatique, d’ores et déjà une réalité

[hal-03475845] Drought-induced forest dieback increases taxonomic and functional diversity but not phylogenetic diversity of saproxylic beetles at both local and landscape scales

[hal-04169150] Non-destructive DNA metabarcoding of arthropods using collection medium from passive traps

[hal-04236326] Recent and potentially ongoing invasion of lepidopteran genomes by a helitron

[hal-04236377] Detection of invasive xylophagous beetles using metabacoding technologies

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