%0 Journal Article %J Frontiers in Ecology and Evolution %D 2023 %T Identifying global research and conservation priorities for Columbidae: a quantitative approach using random forest models %A Cambrone, Christopher %A Jean-Pierre, Aurélie %A Bezault, Etienne %A Cézilly, Frank %X The family of Columbidae, including pigeons and doves, remains understudied despite their patrimonial value and high ecological and conservation relevance. Currently, 353 extant columbid species are listed in the IUCN red list, with about 20% of them being threatened with extinction. However, there has been little effort so far to synthetize the available information on factors influencing extinction risk and the allocation of research effort among columbid species. In this context, using random forest models, the present study aims at quantitatively assessing to what extent environmental, life history and socio-political factors may drive the extinction risk of pigeons and doves and explain differences in scientific attention among species. We found that high risk of extinction in columbids is associated with small historical range, exposure to invasive alien mammals and living in isolated islands and/or at low altitudes, while the probability of population decline is associated with species body size, surrounding human density and narrow habitat breadth. We also evidenced a large disparity between species or population extinction risk and scientific interest. Indeed, most of the studies on columbids have been conducted by scientists from North America and Western Europe on their local species, whereas species from biodiversity hotspots, which are more at risk of extinction, have comparatively received little attention. This unequal acquisition of knowledge creates gaps that deserve to be filled in order to have a good appreciation of extinction risk in columbids and associated threats, through fair transnational cooperation, academic training and regional coordination in conservation-oriented research on columbids. %B Frontiers in Ecology and Evolution %V 11 %8 Dec-07-2024 %G eng %U https://www.frontiersin.org/articles/10.3389/fevo.2023.1141072/full %! Front. Ecol. Evol. %R 10.3389/fevo.2023.114107210.3389/fevo.2023.1141072.s00110.3389/fevo.2023.1141072.s002 %0 Journal Article %J Ardeola %D 2022 %T Obtaining DNA Samples from Sensitive and Endangered Bird Species: A Comparison of Saliva and Blood Samples %A Cambrone, Christopher %A Motreuil, Sébastien %A Reyes, Francis O. %A Landestoy, Miguel A. %A Cézilly, Frank %A Bezault, Etienne %X Methods used to collect biological samples from birds for genetic analyses should allow high-quality DNA to be obtained in sufficient quantities, while limiting negative effects on sampled individuals. In this context, we assessed the potential use of saliva sampling (using buccal swabs) as an alternative to blood sampling (supposedly more stressful) in a near-threatened Caribbean-endemic, the White-crowned Pigeon Patagioenas leucocephala, a bird known to be highly sensitive to capture and handling, based on samples collected from 28 adults captured in the wild. We quantitatively and qualitatively compared DNA extracts, amplifications of two mitochondrial genes (∼430 bp and 1040 bp), and molecular sexing between saliva and blood samples. As expected, blood samples provided larger amounts of DNA of heavy molecular weight than buccal swabs. However, buccal swabs were as reliable as blood samples as a source of genetic material to sequence mtDNA. On the other hand, buccal swab samples might require an improved PCR protocol to sex all individuals successfully. We discuss the use of buccal swabs vs. blood sampling as a way to obtain DNA in relation to research objectives and minimising stress and harmful effects. %B Ardeola %V 69 %8 Jan-07-2022 %G eng %U https://bioone.org/journals/ardeola/volume-69/issue-2/arla.69.2.2022.sc1/Obtaining-DNA-Samples-from-Sensitive-and-Endangered-Bird-Species/10.13157/arla.69.2.2022.sc1.full %N 2 %! Ardeola %R 10.13157/arla.69.2.2022.sc110.13157/arla.69.2.2022.sc1.s110.13157/arla.69.2.2022.sc1.s2 %0 Journal Article %J European Journal of Wildlife Research %D 2021 %T Efficiency of the call-broadcast method for detecting two Caribbean-endemic columbid game species %A Cambrone, Christopher %A Bezault, Etienne %A Cézilly, Frank %B European Journal of Wildlife Research %V 67 %8 Jan-08-2021 %G eng %U https://link.springer.com/10.1007/s10344-021-01507-0 %N 4 %! Eur J Wildl Res %R 10.1007/s10344-021-01507-0 %0 Journal Article %J Studies on Neotropical Fauna and Environment %D 2021 %T Levels of genetic differentiation and gene flow between four populations of the Scaly-naped Pigeon, Patagioenas squamosa: implications for conservation %A Cambrone, Christopher %A Cézilly, Frank %A Wattier, Rémi %A Eraud, Cyril %A Bezault, Etienne %B Studies on Neotropical Fauna and Environment %P 1 - 13 %8 Feb-02-2022 %G eng %U https://www.tandfonline.com/doi/full/10.1080/01650521.2021.1878765 %! Studies on Neotropical Fauna and Environment %R 10.1080/01650521.2021.1878765 %0 Journal Article %J Aquatic Ecology %D 2021 %T Upstream/downstream food quality differences in a Caribbean Island River %A Frotté, Lou %A Alexandre Bec %A Cédric Hubas %A Perrière, Fanny %A Cordonnier, Sébastien %A Bezault, Etienne %A Monti, Dominique %B Aquatic Ecology %8 Oct-08-2021 %G eng %U https://link.springer.com/10.1007/s10452-021-09887-w %! Aquat Ecol %R 10.1007/s10452-021-09887-w %0 Journal Article %J Genome Biology and Evolution %D 2019 %T The Genomic Substrate for Adaptive Radiation: Copy Number Variation across 12 Tribes of African Cichlid Species %A Faber-Hammond, Joshua J %A Bezault, Etienne %A Lunt, David H %A Joyce, Domino A %A Renn, Suzy C P %K adaptive radiation %K cichlid %K copy number variation %K gene duplication %K genomic architecture %X The initial sequencing of five cichlid genomes revealed an accumulation of genetic variation, including extensive copy number variation in cichlid lineages particularly those that have undergone dramatic evolutionary radiation. Gene duplication has the potential to generate substantial molecular substrate for the origin of evolutionary novelty. We use array-based comparative heterologous genomic hybridization to identify copy number variation events (CNVEs) for 168 samples representing 53 cichlid species including the 5 species for which full genome sequence is available. We identify an average of 50-100 CNVEs per individual. For those species represented by multiple samples, we identify 150-200 total CNVEs suggesting a substantial amount of intraspecific variation. For these species, only ∼10% of the detected CNVEs are fixed. Hierarchical clustering of species according to CNVE data recapitulates phylogenetic relationships fairly well at both the tribe and radiation level. Although CNVEs are detected on all linkage groups, they tend to cluster in "hotspots" and are likely to contain and be flanked by transposable elements. Furthermore, we show that CNVEs impact functional categories of genes with potential roles in adaptive phenotypes that could reasonably promote divergence and speciation in the cichlid clade. These data contribute to a more complete understanding of the molecular basis for adaptive natural selection, speciation, and evolutionary radiation. %B Genome Biology and Evolution %V 11 %P 2856 - 2874 %8 Jan-10-2019 %G eng %U https://academic.oup.com/gbe/article/11/10/2856/5556293 %N 10 %R 10.1093/gbe/evz185