bei Google ScholarTitelangaben
Habel, Jan Christian ; Brückmann, Sabrina V. ; Krauss, Jochen ; Schwarzer, Julia ; Weig, Alfons ; Husemann, Martin ; Steffan-Dewenter, Ingolf:
Fragmentation genetics of the grassland butterfly Polyommatus coridon : Stable genetic diversity or extinction debt?
In: Conservation Genetics.
Bd. 16
(2015)
.
- S. 549-558.
ISSN 1572-9737
DOI: https://doi.org/10.1007/s10592-014-0679-8
Abstract
Habitat fragmentation can have severe effects on the intraspecific variability of populations and thus plays a pivotal role in species conservation. Especially taxa with specific habitat demands and low dispersal behaviour suffer from habitat fragmentation. One such taxon, the Chalk-hill Blue butterfly, Polyommatus coridon, nowadays mostly occurs in small and isolated, calcareous grasslands across Central Europe. Here we investigate the population genetic structure of 15 local populations of this butterfly species over major parts of the Fränkische Schweiz (south-east Germany). Based on seven polymorphic microsatellites we estimate genetic diversity and differentiation. We use the data to test for potential effects of different habitat sizes, habitat connectivity, and population density. We found high genetic diversity but no significant genetic differentiation among the 15 local populations (F ST = 0.0087, P > 0.05). Genetic diversity was not correlated with habitat size, habitat connectivity, or census population size. But, we found a marginally positive correlation between increasing habitat connectivity and population density (r 2 = 0.31, P < 0.05). Compared to other butterfly species, our data resemble a generalist species with well connected populations rather than a specialist taxon existing in a highly fragmented landscape. The high genetic diversity and the lack of differentiation might either be the result of relatively large and stable local populations and ongoing gene flow, or is the genetic legacy of formerly large and interconnected populations during periods of extensive agriculture.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER127680 |
| Keywords: | Census population size; Genetic diversity; Genetic differentiation; Habitat fragmentation; Habitat connectivity; Habitat size |
| Institutionen der Universität: | Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Professur Populationsökologie der Tiere |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften; Biologie 500 Naturwissenschaften und Mathematik > 590 Tiere (Zoologie) |
| Eingestellt am: | 26 Feb 2015 06:17 |
| Letzte Änderung: | 26 Sep 2023 13:17 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/7564 |