Male behaviour drives assortative reproduction during the initial stage of secondary contact.
Identifieur interne : 001B57 ( Main/Exploration ); précédent : 001B56; suivant : 001B58Male behaviour drives assortative reproduction during the initial stage of secondary contact.
Auteurs : R J P. Heathcote [Royaume-Uni] ; G M While [Royaume-Uni] ; H E A. Macgregor [Royaume-Uni] ; J. Sciberras [Royaume-Uni] ; C. Leroy [France] ; P. D'Ettorre [France] ; T. Uller [Royaume-Uni]Source :
- Journal of evolutionary biology [ 1420-9101 ] ; 2016.
Abstract
Phenotypic divergence in allopatry can facilitate speciation by reducing the likelihood that individuals of different lineages hybridize during secondary contact. However, few studies have established the causes of reproductive isolation in the crucial early stages of secondary contact. Here, we establish behavioural causes of assortative reproduction between two phenotypically divergent lineages of the European wall lizard (Podarcis muralis), which have recently come into secondary contact. Parentage was highly assortative in experimental contact zones. However, despite pronounced divergence in male phenotypes, including chemical and visual sexual signals, there was no evidence that females discriminated between males of the two lineages in staged interactions or under naturalistic free-ranging conditions. Instead, assortative reproduction was driven by male mate preferences and, to a lesser extent, male-male competition. The effects were more pronounced when the habitat structure promoted high lizard densities. These results emphasize that assortative reproduction can occur in the absence of female choice and that male behaviour may play an important role in limiting hybridization during the initial stages of secondary contact.
DOI: 10.1111/jeb.12840
PubMed: 26848540
Affiliations:
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Uller</name><affiliation wicri:level="4"><nlm:affiliation>Department of Zoology, Edward Grey Institute, University of Oxford, Oxford, UK.</nlm:affiliation><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Zoology, Edward Grey Institute, University of Oxford, Oxford</wicri:regionArea><placeName><settlement type="city">Oxford</settlement><region type="country">Angleterre</region><region type="comté" nuts="2">Oxfordshire</region><settlement type="city">Oxford</settlement></placeName><orgName type="university">Université d'Oxford</orgName></affiliation></author></analytic><series><title level="j">Journal of evolutionary biology</title><idno type="eISSN">1420-9101</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Phenotypic divergence in allopatry can facilitate speciation by reducing the likelihood that individuals of different lineages hybridize during secondary contact. However, few studies have established the causes of reproductive isolation in the crucial early stages of secondary contact. Here, we establish behavioural causes of assortative reproduction between two phenotypically divergent lineages of the European wall lizard (Podarcis muralis), which have recently come into secondary contact. Parentage was highly assortative in experimental contact zones. However, despite pronounced divergence in male phenotypes, including chemical and visual sexual signals, there was no evidence that females discriminated between males of the two lineages in staged interactions or under naturalistic free-ranging conditions. Instead, assortative reproduction was driven by male mate preferences and, to a lesser extent, male-male competition. The effects were more pronounced when the habitat structure promoted high lizard densities. These results emphasize that assortative reproduction can occur in the absence of female choice and that male behaviour may play an important role in limiting hybridization during the initial stages of secondary contact.</div></front></TEI><affiliations><list><country><li>France</li><li>Royaume-Uni</li></country><region><li>Angleterre</li><li>Oxfordshire</li></region><settlement><li>Oxford</li></settlement><orgName><li>Université d'Oxford</li></orgName></list><tree><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Heathcote, R J P" sort="Heathcote, R J P" uniqKey="Heathcote R" first="R J P" last="Heathcote">R J P. Heathcote</name></region><name sortKey="Macgregor, H E A" sort="Macgregor, H E A" uniqKey="Macgregor H" first="H E A" last="Macgregor">H E A. Macgregor</name><name sortKey="Sciberras, J" sort="Sciberras, J" uniqKey="Sciberras J" first="J" last="Sciberras">J. Sciberras</name><name sortKey="Uller, T" sort="Uller, T" uniqKey="Uller T" first="T" last="Uller">T. Uller</name><name sortKey="While, G M" sort="While, G M" uniqKey="While G" first="G M" last="While">G M While</name></country><country name="France"><noRegion><name sortKey="Leroy, C" sort="Leroy, C" uniqKey="Leroy C" first="C" last="Leroy">C. Leroy</name></noRegion><name sortKey="D Ettorre, P" sort="D Ettorre, P" uniqKey="D Ettorre P" first="P" last="D'Ettorre">P. D'Ettorre</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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