Publications by authors named "Gaubert P"

Pangolins are the most heavily trafficked mammals in the world, largely because of the high demand for their keratinous scales from the traditional Chinese medicine market. While seizures of pangolin material are largely composed of isolated scales, efficient approaches to reach species-level identification are missing. This mostly originates from the lack of comparative studies on the shape of pangolin scales, resulting in knowledge gaps on the imbricated effects of serial, ontogenetic, and evolutionary variations.

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  • - The white-bellied pangolin faces serious trafficking threats, and a study analyzed 562 pangolins in central Africa to understand its population genetics and the domestic trade dynamics.
  • - Findings revealed overlapping genetic lineages with minimal introgression and suggested a significant decline in population size, likely due to historical factors and current trade routes radiating up to 600 km from markets in Cameroon.
  • - The study recommends improved monitoring of key trade hubs like the Yaoundé market and emphasizes the need for better enforcement of CITES regulations in Europe to help protect pangolin populations.
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During the last 40 years, the volumes of African pangolins feeding the illegal wildlife trade have dramatically increased. We conducted a conservation genetics survey of the most traded African species, the white bellied pangolin (WBP; ), across three West African countries including Guinea, Côte d'Ivoire, and Ghana. Our study combining mitochondrial DNA sequencing and microsatellite genotyping is the first to reveal a wide pattern of admixture between two of the six mitochondrial lineages as previously delimited within WBP.

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Sub-Saharan Africa is under-represented in global biodiversity datasets, particularly regarding the impact of land use on species' population abundances. Drawing on recent advances in expert elicitation to ensure data consistency, 200 experts were convened using a modified-Delphi process to estimate 'intactness scores': the remaining proportion of an 'intact' reference population of a species group in a particular land use, on a scale from 0 (no remaining individuals) to 1 (same abundance as the reference) and, in rare cases, to 2 (populations that thrive in human-modified landscapes). The resulting bii4africa dataset contains intactness scores representing terrestrial vertebrates (tetrapods: ±5,400 amphibians, reptiles, birds, mammals) and vascular plants (±45,000 forbs, graminoids, trees, shrubs) in sub-Saharan Africa across the region's major land uses (urban, cropland, rangeland, plantation, protected, etc.

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  • * Bushpigs (Potamochoerus larvatus) and red river hogs (P. porcus) were once thought to be the same species due to their morphological differences and lack of interbreeding, but genetic analysis reveals a more complex relationship with evidence of historical gene flow.
  • * The study suggests that instead of being distinct species, bushpigs and red river hogs may represent incompletely speciation, and that Malagasy bushpigs diverged from their southern African relatives during a population bottleneck that coincided with human arrival in Madagascar.
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Pangolins form a group of scaly mammals that are trafficked at record numbers for their meat and purported medicinal properties. Despite their conservation concern, knowledge of their evolution is limited by a paucity of genomic data. We aim to produce exhaustive genomic resources that include 3,238 orthologous genes and whole-genome polymorphisms to assess the evolution of all eight extant pangolin species.

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Eight extant species of pangolins are currently recognized. Recent studies found that two mitochondrial haplotypes identified in confiscations in Hong Kong could not be assigned to any known pangolin species, implying the existence of a species. Here, we report that two additional mitochondrial haplotypes identified in independent confiscations from Yunnan align with the putative species haplotypes supporting the existence of this mysterious species/population.

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The carriage of bushmeat into the European Union is an infringement of EU Animal Health and Wildlife Trade legislation and poses a threat to biodiversity and public health. To explore the nature and scale of the international bushmeat trade, seized leaking luggage and passengers arriving at Brussels Zaventem airport from sub-Saharan Africa between 2017 and 2018 were searched for "meat" (bushmeat and livestock) by border control authorities. Visual identification, radiography and genetic analysis were applied to derive information from seized specimens, including at least ten CITES-listed species.

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  • Social media acts as a crucial platform for wildlife crime syndicates, allowing them to tap into a global market for wildlife products, specifically bushmeat.
  • A detailed analysis of 563 posts from West African Facebook pages revealed a range of 25 bushmeat species being marketed, many of which are threatened or protected under international and local laws.
  • The study highlights that the online presence of these protected species demonstrates insufficient enforcement of wildlife trade regulations, and emphasizes the need for stronger policies to curb the illegal sale of bushmeat facilitated by social media.
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Disentangling the impact of Late Quaternary climate change from human activities can have crucial implications on the conservation of endangered species. We investigated the population genetics and demography of the Mediterranean monk seal (), one of the world's most endangered marine mammals, through an unprecedented dataset encompassing historical (extinct) and extant populations from the eastern North Atlantic to the entire Mediterranean Basin. We show that Cabo Blanco (Western Sahara/Mauritania), Madeira, Western Mediterranean (historical range) and Eastern Mediterranean regions segregate into four populations.

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African wild pigs have a contentious evolutionary and biogeographic history. Until recently, desert warthog (Phacochoerus aethiopicus) and common warthog (P. africanus) were considered a single species.

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  • Comprehensive global range maps for all existing mammal species are crucial for biodiversity studies and conservation efforts, facilitating better understanding of their distribution.
  • The maps are created through a meticulous process involving digital interpretation, georeferencing, and alignment across multiple taxonomic databases, including HMW, CMW, and MDD.
  • Although expert maps have limitations in detail and precision, the provided georeferenced shapefiles, accompanied by species metadata, enhance accessibility and the potential for future updates through an online platform.
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Background: African pangolins are currently experiencing unprecedented levels of harvesting, feeding both local demands and the illegal international trade. So far, the lack of knowledge on the population genetics of African pangolins has hampered any attempts at assessing their demographic status and tracing their trade at the local scale. We conducted a pioneer study on the genetic tracing of the African pangolin trade in the Dahomey Gap (DG).

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The grey wolf (Canis lupus) expanded its range across Holarctic regions during the late Pleistocene. Consequently, most grey wolves share recent (<100,000 years ago) maternal origins corresponding to a widespread Holarctic clade. However, two deeply divergent (200,000-700,000 years ago) mitochondrial clades are restricted, respectively, to the Indian subcontinent and the Tibetan Plateau, where remaining wolves are endangered.

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  • Zootaxa emerged as a key publication for taxonomy, gaining prominence in the field of mammalogy over its 20-year history, particularly noted for its contribution of 76 new mammalian species.
  • Despite expectations for its impact to be limited given the existing specialized journals, Zootaxa has become the second most prolific journal for new species descriptions, following the Journal of Mammalogy.
  • The journal utilizes an integrative taxonomic approach, has a broad geographic representation in its publications, and is positioned to address a growing demand for taxonomic research without publication fees, while facing challenges in future engagement and research variety.
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Health risks associated to the use of tropical wildlife have so far been envisioned through the lens of zoonotic pathogens spread by the bushmeat trade, putting aside the equally vibrant network of traditional medicine markets (TMMs). We collected information on the preservative techniques used for animal body parts from TMMs in Benin through a semi-structured questionnaire addressed to 45 sellers. We show that a recent shift from traditional preservative techniques using harmless treatments towards modern techniques -involving the recurrent use of hazardous chemicals (such as Sniper)- is likely to pose a serious health risk to practitioners and consumers of animal parts from TMMs in Benin.

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Background: Pangolins are trafficked in unsustainable volumes to feed both local and global trade networks for their meat and the medicinal properties of their derivatives, including scales. We focus on a West African country (Benin) to assess the medicinal and spiritual values of pangolins among different ethnic groups and identify the cohort of buyers involved in the pangolin trade and related economic values along the chain, notably from local diasporas.

Methods: We organised 54 focus groups in villages surrounding occurrence habitats of pangolins across Benin and conducted 35 individual interviews with vendors from five major traditional medicine markets (TMMs).

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  • Dire wolves were common large carnivores in Pleistocene America, but their evolution and extinction are not well understood.
  • Researchers sequenced five genomes from dire wolf sub-fossils dating back 13,000 to over 50,000 years to study their evolutionary history.
  • Findings reveal that dire wolves split from living canids about 5.7 million years ago, evolved in isolation without hybridizing with North American grey wolves or coyotes, and likely originated in the New World, contrasting with the Eurasian ancestry of grey wolves and coyotes.
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Pangolins, or scaly anteaters, have recently been flagshiped as one of the most illegally traded mammals, and as a corollary, as potential intermediate hosts at the origin of the COVID-19 pandemic. In order to improve the traceability of their trade, we developed 20 polymorphic microsatellite loci for the white-bellied pangolin (Phataginus tricuspis), the species most frequently found on African bushmeat markets. We genotyped 24 white-bellied pangolins from the Douala market, Cameroon, originating from the Ebo forest c.

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The evolutionary history of the wolf-like canids of the genus Canis has been heavily debated, especially regarding the number of distinct species and their relationships at the population and species level [1-6]. We assembled a dataset of 48 resequenced genomes spanning all members of the genus Canis except the black-backed and side-striped jackals, encompassing the global diversity of seven extant canid lineages. This includes eight new genomes, including the first resequenced Ethiopian wolf (Canis simensis), one dhole (Cuon alpinus), two East African hunting dogs (Lycaon pictus), two Eurasian golden jackals (Canis aureus), and two Middle Eastern gray wolves (Canis lupus).

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Pangolins, considered the most-trafficked mammals on Earth, are rapidly heading to extinction. Eight extant species of these African and Asian scale-bodied anteaters are commonly recognized, but their evolutionary relationships remain largely unexplored. Here, we present the most comprehensive phylogenetic assessment of pangolins, based on genetic variation of complete mitogenomes and 9 nuclear genes.

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  • * Research on 19 indigenous Nigerian dogs showed their ancestors migrated from Eurasia about 14,000 years ago and faced a severe population bottleneck before expanding.
  • * Analysis identified 50 genes linked to important traits like immunity and disease resistance, with one gene (ADGRE1) also related to malaria resistance, making dogs a valuable model for studying malaria control in humans.
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The biogeographic dynamics affecting the Indian subcontinent, East and Southeast Asia during the Plio-Pleistocene has generated complex biodiversity patterns. We assessed the molecular biogeography of the small Indian civet (Viverricula indica) through mitogenome and cytochrome b + control region sequencing of 89 historical and modern samples to (1) establish a time-calibrated phylogeography across the species' native range and (2) test introduction scenarios to western Indian Ocean islands. Bayesian phylogenetic analyses identified 3 geographic lineages (East Asia, sister-group to Southeast Asia and the Indian subcontinent + northern Indochina) diverging 3.

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