Colour polymorphism is associated with lower extinction risk in birds.
Identifieur interne : 000F65 ( PubMed/Checkpoint ); précédent : 000F64; suivant : 000F66Colour polymorphism is associated with lower extinction risk in birds.
Auteurs : Simon Ducatez [Australie] ; Mathieu Giraudeau [États-Unis] ; Christophe Thébaud [France] ; Lisa Jacquin [Canada]Source :
- Global change biology [ 1365-2486 ] ; 2017.
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Abstract
Colour polymorphisms have played a major role in enhancing current understanding of how selection and demography can impact phenotypes. Because different morphs often display alternative strategies and exploit alternative ecological niches, colour polymorphism can be expected to promote adaptability to environmental changes. However, whether and how it could influence populations' and species' response to global changes remains debated. To address this question, we built an up-to-date and complete database on avian colour polymorphism based on the examination of available data from all 10,394 extant bird species. We distinguished between true polymorphism (where different genetically determined morphs co-occur in sympatry within the same population) and geographic variation (parapatric or allopatric colour variation), because these two patterns of variation are expected to have different consequences on populations' persistence. Using the IUCN red list, we then showed that polymorphic bird species are at lesser risk of extinction than nonpolymorphic ones, after controlling for a range of factors such as geographic range size, habitat breadth, life history, and phylogeny. This appears consistent with the idea that high genetic diversity and/or the existence of alternative strategies in polymorphic species promotes the ability to adaptively respond to changing environmental conditions. In contrast, polymorphic species were not less vulnerable than nonpolymorphic ones to specific drivers of extinction such as habitat alteration, direct exploitation, climate change, and invasive species. Thus, our results suggest that colour polymorphism acts as a buffer against environmental changes, although further studies are now needed to understand the underlying mechanisms. Developing accurate quantitative indices of sensitivity to specific threats is likely a key step towards a better understanding of species response to environmental changes.
DOI: 10.1111/gcb.13734
PubMed: 28452164
Affiliations:
- Australie, Canada, France, États-Unis
- Arizona, Midi-Pyrénées, Nouvelle-Galles du Sud, Occitanie (région administrative), Québec
- Montréal, Sydney, Toulouse
- Université McGill, Université de Sydney
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pubmed:28452164Le document en format XML
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Because different morphs often display alternative strategies and exploit alternative ecological niches, colour polymorphism can be expected to promote adaptability to environmental changes. However, whether and how it could influence populations' and species' response to global changes remains debated. To address this question, we built an up-to-date and complete database on avian colour polymorphism based on the examination of available data from all 10,394 extant bird species. We distinguished between true polymorphism (where different genetically determined morphs co-occur in sympatry within the same population) and geographic variation (parapatric or allopatric colour variation), because these two patterns of variation are expected to have different consequences on populations' persistence. Using the IUCN red list, we then showed that polymorphic bird species are at lesser risk of extinction than nonpolymorphic ones, after controlling for a range of factors such as geographic range size, habitat breadth, life history, and phylogeny. This appears consistent with the idea that high genetic diversity and/or the existence of alternative strategies in polymorphic species promotes the ability to adaptively respond to changing environmental conditions. In contrast, polymorphic species were not less vulnerable than nonpolymorphic ones to specific drivers of extinction such as habitat alteration, direct exploitation, climate change, and invasive species. Thus, our results suggest that colour polymorphism acts as a buffer against environmental changes, although further studies are now needed to understand the underlying mechanisms. Developing accurate quantitative indices of sensitivity to specific threats is likely a key step towards a better understanding of species response to environmental changes.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">28452164</PMID><DateCreated><Year>2017</Year><Month>04</Month><Day>28</Day></DateCreated><DateCompleted><Year>2017</Year><Month>10</Month><Day>20</Day></DateCompleted><DateRevised><Year>2017</Year><Month>10</Month><Day>20</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-2486</ISSN><JournalIssue CitedMedium="Internet"><Volume>23</Volume><Issue>8</Issue><PubDate><Year>2017</Year><Month>Aug</Month></PubDate></JournalIssue><Title>Global change biology</Title><ISOAbbreviation>Glob Chang Biol</ISOAbbreviation></Journal><ArticleTitle>Colour polymorphism is associated with lower extinction risk in birds.</ArticleTitle><Pagination><MedlinePgn>3030-3039</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/gcb.13734</ELocationID><Abstract><AbstractText>Colour polymorphisms have played a major role in enhancing current understanding of how selection and demography can impact phenotypes. Because different morphs often display alternative strategies and exploit alternative ecological niches, colour polymorphism can be expected to promote adaptability to environmental changes. However, whether and how it could influence populations' and species' response to global changes remains debated. To address this question, we built an up-to-date and complete database on avian colour polymorphism based on the examination of available data from all 10,394 extant bird species. We distinguished between true polymorphism (where different genetically determined morphs co-occur in sympatry within the same population) and geographic variation (parapatric or allopatric colour variation), because these two patterns of variation are expected to have different consequences on populations' persistence. Using the IUCN red list, we then showed that polymorphic bird species are at lesser risk of extinction than nonpolymorphic ones, after controlling for a range of factors such as geographic range size, habitat breadth, life history, and phylogeny. This appears consistent with the idea that high genetic diversity and/or the existence of alternative strategies in polymorphic species promotes the ability to adaptively respond to changing environmental conditions. In contrast, polymorphic species were not less vulnerable than nonpolymorphic ones to specific drivers of extinction such as habitat alteration, direct exploitation, climate change, and invasive species. Thus, our results suggest that colour polymorphism acts as a buffer against environmental changes, although further studies are now needed to understand the underlying mechanisms. Developing accurate quantitative indices of sensitivity to specific threats is likely a key step towards a better understanding of species response to environmental changes.</AbstractText><CopyrightInformation>© 2017 John Wiley & Sons Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Ducatez</LastName><ForeName>Simon</ForeName><Initials>S</Initials><Identifier Source="ORCID">http://orcid.org/0000-0003-2865-4674</Identifier><AffiliationInfo><Affiliation>School of Biological Sciences, University of Sydney, Sydney, NSW, Australia.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Department of Biology, McGill University, Montréal, QC, Canada.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>CREAF, Cerdanyola del Vallès, Spain.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Giraudeau</LastName><ForeName>Mathieu</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>School of Life Sciences, Arizona State University, Tempe, AZ, USA.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Centre for Ecology & Conservation, College of Life and Environmental Sciences, University of Exeter, Penryn, UK.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Thébaud</LastName><ForeName>Christophe</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>CNRS, ENFA, UMR 5174 EDB (Laboratoire Évolution & Diversité Biologique), Université Toulouse 3 Paul Sabatier, Toulouse, France.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>CNRS, UMR 5174 EDB, Université Paul Sabatier, Toulouse, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Jacquin</LastName><ForeName>Lisa</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>Department of Biology, McGill University, Montréal, QC, Canada.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>CNRS, ENFA, UMR 5174 EDB (Laboratoire Évolution & Diversité Biologique), Université Toulouse 3 Paul Sabatier, Toulouse, France.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>CNRS, UMR 5174 EDB, Université Paul Sabatier, Toulouse, France.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2017</Year><Month>05</Month><Day>29</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Glob Chang Biol</MedlineTA><NlmUniqueID>9888746</NlmUniqueID><ISSNLinking>1354-1013</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001717" MajorTopicYN="Y">Birds</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D057231" MajorTopicYN="Y">Climate 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model</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2016</Year><Month>07</Month><Day>30</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2017</Year><Month>02</Month><Day>15</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2017</Year><Month>04</Month><Day>07</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2017</Year><Month>4</Month><Day>30</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2017</Year><Month>10</Month><Day>21</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2017</Year><Month>4</Month><Day>29</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">28452164</ArticleId><ArticleId IdType="doi">10.1111/gcb.13734</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Australie</li><li>Canada</li><li>France</li><li>États-Unis</li></country><region><li>Arizona</li><li>Midi-Pyrénées</li><li>Nouvelle-Galles du Sud</li><li>Occitanie (région administrative)</li><li>Québec</li></region><settlement><li>Montréal</li><li>Sydney</li><li>Toulouse</li></settlement><orgName><li>Université McGill</li><li>Université de Sydney</li></orgName></list><tree><country name="Australie"><region name="Nouvelle-Galles du Sud"><name sortKey="Ducatez, Simon" sort="Ducatez, Simon" uniqKey="Ducatez S" first="Simon" last="Ducatez">Simon Ducatez</name></region></country><country name="États-Unis"><region name="Arizona"><name sortKey="Giraudeau, Mathieu" sort="Giraudeau, Mathieu" uniqKey="Giraudeau M" first="Mathieu" last="Giraudeau">Mathieu Giraudeau</name></region></country><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Thebaud, Christophe" sort="Thebaud, Christophe" uniqKey="Thebaud C" first="Christophe" last="Thébaud">Christophe Thébaud</name></region></country><country name="Canada"><region name="Québec"><name sortKey="Jacquin, Lisa" sort="Jacquin, Lisa" uniqKey="Jacquin L" first="Lisa" last="Jacquin">Lisa Jacquin</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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