Quaternary Habitat Fluctuations and Demographic Dynamics in Turtles Inferred From Environmental Niche Modelling and Whole Genome Data
Rattachement africain : it, us, dk, gb, ru. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
ABSTRACT Quaternary climatic fluctuations had a substantial influence on ecosystems, species distribution, phenology and genetic diversity, driving extinction, adaptation and demographic shifts during glacial periods and postglacial expansions. Integration of genomic data and environmental niche modelling can provide valuable insights on how organisms responded to past environmental variations and contribute to assessing vulnerability and resilience to ongoing climatic challenges. Among vertebrates, turtles are particularly vulnerable to habitat changes because of distinctive life history traits and the effect of environmental conditions on physiology and survival. We estimated contemporary heterozygosity ( H ) and effective population size ( N e ) using a high‐quality chromosome‐level reference genome we produced for the European pond turtle ( Emys orbicularis ) and reference genomes and whole genome sequence data available for 21 species of tortoises and freshwater turtles. We implemented environmental niche modelling (ENM) to estimate past habitat dynamics. We found recurrent cycles of population expansion and contraction over the last 10 Mya in all species, with a general pattern of decrease in N e correlated with temperature reduction after the last interglacial period. No correlation was found between habitat fluctuations during the Quaternary and past N e . Moreover, neither H nor mean N e was correlated to threat status as defined by IUCN Red List categories. Our results add to studies on other vertebrates showing the extent to which genetic parameters can aid the assessment of conservation status, and although genomic data may not always be consistent indicators of the level of threat, investigations of which genomic parameters could best represent essential biodiversity variables should be consistently supported.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Quaternary Habitat Fluctuations and Demographic Dynamics in Turtles Inferred From Environmental Niche Modelling and Whole Genome Data
- Date Crossref
- 04/09/2025
- Éditeur
- Wiley
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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University of Florence Department of Biology pays non établi dans la noticeUniversité ou école supérieure
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Rockefeller University Vertebrate Genome Laboratory pays non établi dans la noticeUniversité ou école supérieure
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University of Copenhagen Center for Macroecology pays non établi dans la noticeUniversité ou école supérieure
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Howard Hughes Medical Institute pays non établi dans la noticeStructure de recherche
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Wellcome Sanger Institute Tree of Life pays non établi dans la noticeOrganisation à but non lucratif
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Institute of Molecular and Cell Biology pays non établi dans la noticeStructure de recherche
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Siberian Branch of the Russian Academy of Sciences pays non établi dans la noticeOrganisme public
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Riserva Naturale Regionale Monte Rufeno Acquapendente Italy pays non établi dans la noticeInstitution
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Institute of Molecular and Cellular Biology SB RAS Novosibirsk Russia pays non établi dans la noticeStructure de recherche
Department of Biology — University of Florence, Vertebrate Genome Laboratory — Rockefeller University et Center for Macroecology — University of Copenhagen, avec 6 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.