首页|Genetic identification and reiterated captures suggest that the Astyanax mexicanus El Pachón cavefish population is closed and declining

Genetic identification and reiterated captures suggest that the Astyanax mexicanus El Pachón cavefish population is closed and declining

扫码查看
原文链接
  • 万方数据
  • 维普
The sizes of Astyanax mexicanus blind cavefish populations of North-East Mexico are demographic parameters of great importance for investigating a variety of ecological,evolutionary,and conservation issues.However,few estimates have been obtained.For these mobile animals living in an environment difficult to explore as a whole,methods based on capture-mark-recapture are appropriate,but their feasibility and interpretation of results depend on several assumptions that must be carefully examined.Here,we provide evidence that minimally invasive genetic identification from captures at different time intervals(three days and three years)can give insights into cavefish population size dynamics as well as other important demographic parameters of interest.We also provide tools to calibrate sampling and genotyping efforts necessary to reach a given level of precision.Our results suggest that the El Pachón cave population is currently very small,of an order of magnitude of a few hundreds of individuals,and is distributed in a relatively isolated area.The probable decline in population size in the El Pachón cave since the last census in 1971 raises serious conservation issues.

CavefishPopulation sizeConservationSwabbingGenetic identification

Laurent Legendre、Julie Rode、Isabelle Germon、Marie Pavie、Carla Quiviger、Maxime Policarpo、Julien Leclercq、Stéphane Père、Julien Fumey、Carole Hyacinthe、Patricia Ornelas-García、Luis Espinasa、Sylvie Rétaux、Didier Casane

展开 >

Université Paris-Saclay,CNRS,IRD,UMR Évolution,Génomes,Comportement et Écologie,Gif-sur-Yvette 91190,France

Objectif Sciences International NGO,OSI-Panthera Program,Geneva 99140,Switzerland

Institut de Neuroscience Paris-Saclay,Université Paris-Saclay and CNRS,Saclay 91400,France

Zoological Institute,Department of Environmental Sciences,University of Basel,Basel,Switzerland

Institut Pasteur,Université Paris Cité,CNRS UMR 2000,Microbial Paleogenomics Unit,Paris 75015,France

Institut Pasteur,Université Paris Cité,Bioinformatics and Biostatistics Hub,Paris 75015,France

Department of Genetics,Harvard Medical School,Blavatnik Institute,Boston MA 02115,USA

Colección Nacional de Peces,Departamento de Zoología,Instituto de Biología,Universidad Nacional Autónoma de México,México DF CP 04510,México

School of Science,Marist College,Poughkeepsie,New York 12601,USA

Université Paris Cité,UFR Sciences du Vivant,Paris 75013,France

展开 >

a CNRS MITI(Mission pour les Initiatives Transverses et Interdisciplinaires)grantAgence Nationale de la Recherche(BLINDTEST)Institut Diversité Ecologie et Evolution du Vivant

2023

10.24272/j.issn.2095-8137.2022.481

动物学研究
中国科学院昆明动物研究所 中国动物学会

动物学研究

CSTPCDCSCD
影响因子：0.582
ISSN：0254-5853
年,卷(期)：2023.44(4)
  • 23