The genetic signature of ecologically different grassland Lepidopterans
Identifieur interne : 000609 ( Main/Exploration ); précédent : 000608; suivant : 000610The genetic signature of ecologically different grassland Lepidopterans
Auteurs : Jan Christian Habel [Allemagne] ; Dennis Rödder [Allemagne] ; Luc Lens [Belgique] ; Thomas Schmitt [Allemagne]Source :
- Biodiversity and conservation [ 0960-3115 ] ; 2013.
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English descriptors
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Abstract
The level of genetic diversity found for species is strongly influenced by properties of the species' ecology, abundance and behaviour (as dispersal). To address this coherence, we selected twenty-two grassland butterfly and burnet moth species, which were previously analysed by allozyme electrophoresis (using 15-25 loci per species) over a study area in western Germany with adjoining areas of Luxembourg and north-eastern France. For this study area, we calculated the species' specific climatic niche breadths and derived various ecological parameters from literature and own field observations. The obtained parameters of genetic diversity (heterozygosity, number of alleles and percentage of polymorphic loci), genetic differentiation (Dest as well as FST and FIs values as proxis for genetic differentiation among populations and inbreeding within populations), as well as ecological and climatic niche dimensions did not show significant differences among the different Lepidoptera families; therefore taxonomic assignment apparently has a negligible influence on the genetic structure of taxa. Genetic diversity and differentiation showed a significant correlation with the ecological and climatic niche-breadth of species in many cases: generalistic species with rather unspecific ecological characteristics and climatic niche had higher genetic diversities and tend to have lower differentiation and inbreeding, whereas specialist taxa (i.e. with narrow ecological and climatic niches) have lower genetic diversities and higher differentiation and inbreeding. The results might reflect contrasting population structures of specialist species with lower abundances compared with the more common generalists. The more restricted and isolated occurrence of specialists might consequence a reduction in genetic diversity and an increase in genetic differentiation among local populations. In contrast, generalists with unspecific habitat requirements occur in higher abundances and in consequence show a more homogenous genetic structure with higher diversities.
Affiliations:
- Allemagne, Belgique
- Bavière, District de Cologne, District de Haute-Bavière, Province de Flandre-Orientale, Rhénanie-du-Nord-Westphalie
- Bonn, Gand, Munich
- Université de Gand, Université technique de Munich
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Le document en format XML
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Trier University</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Biodiversity and conservation</title><title level="j" type="abbreviated">Biodivers. conserv.</title><idno type="ISSN">0960-3115</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Biodiversity and conservation</title><title level="j" type="abbreviated">Biodivers. conserv.</title><idno type="ISSN">0960-3115</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Climate</term><term>Climatic condition</term><term>Conservation biology</term><term>Ecological niche</term><term>Ecology</term><term>Environmental protection</term><term>Genetic diversity</term><term>Genetic variability</term><term>Genetics</term><term>Grassland</term><term>Lepidoptera</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Génétique</term><term>Ecologie</term><term>Prairie</term><term>Climat</term><term>Condition climatique</term><term>Niche écologique</term><term>Diversité génétique</term><term>Variabilité génétique</term><term>Protection environnement</term><term>Lepidoptera</term><term>Biologie de la conservation</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Génétique</term><term>Climat</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The level of genetic diversity found for species is strongly influenced by properties of the species' ecology, abundance and behaviour (as dispersal). To address this coherence, we selected twenty-two grassland butterfly and burnet moth species, which were previously analysed by allozyme electrophoresis (using 15-25 loci per species) over a study area in western Germany with adjoining areas of Luxembourg and north-eastern France. For this study area, we calculated the species' specific climatic niche breadths and derived various ecological parameters from literature and own field observations. The obtained parameters of genetic diversity (heterozygosity, number of alleles and percentage of polymorphic loci), genetic differentiation (D<sub>est</sub> as well as F<sub>ST</sub> and F<sub>Is</sub> values as proxis for genetic differentiation among populations and inbreeding within populations), as well as ecological and climatic niche dimensions did not show significant differences among the different Lepidoptera families; therefore taxonomic assignment apparently has a negligible influence on the genetic structure of taxa. Genetic diversity and differentiation showed a significant correlation with the ecological and climatic niche-breadth of species in many cases: generalistic species with rather unspecific ecological characteristics and climatic niche had higher genetic diversities and tend to have lower differentiation and inbreeding, whereas specialist taxa (i.e. with narrow ecological and climatic niches) have lower genetic diversities and higher differentiation and inbreeding. The results might reflect contrasting population structures of specialist species with lower abundances compared with the more common generalists. The more restricted and isolated occurrence of specialists might consequence a reduction in genetic diversity and an increase in genetic differentiation among local populations. In contrast, generalists with unspecific habitat requirements occur in higher abundances and in consequence show a more homogenous genetic structure with higher diversities.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Belgique</li></country><region><li>Bavière</li><li>District de Cologne</li><li>District de Haute-Bavière</li><li>Province de Flandre-Orientale</li><li>Rhénanie-du-Nord-Westphalie</li></region><settlement><li>Bonn</li><li>Gand</li><li>Munich</li></settlement><orgName><li>Université de Gand</li><li>Université technique de Munich</li></orgName></list><tree><country name="Allemagne"><region name="Bavière"><name sortKey="Habel, Jan Christian" sort="Habel, Jan Christian" uniqKey="Habel J" first="Jan Christian" last="Habel">Jan Christian Habel</name></region><name sortKey="Rodder, Dennis" sort="Rodder, Dennis" uniqKey="Rodder D" first="Dennis" last="Rödder">Dennis Rödder</name><name sortKey="Schmitt, Thomas" sort="Schmitt, Thomas" uniqKey="Schmitt T" first="Thomas" last="Schmitt">Thomas Schmitt</name></country><country name="Belgique"><region name="Province de Flandre-Orientale"><name sortKey="Lens, Luc" sort="Lens, Luc" uniqKey="Lens L" first="Luc" last="Lens">Luc Lens</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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