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The declining Spadefoot toad, Pelobates fuscus (Pelobatidae): paleo and recent environmental changes as a major influence on current population structure and status

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Conservation Genetics : Volume 7, Issue 1, February 2006

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Conservation Genetics : Volume 2

Conservation Genetics : Volume 1

The declining Spadefoot toad, Pelobates fuscus (Pelobatidae): paleo and recent environmental changes as a major influence on current population structure and status

Content Provider	Springer Nature Link
Author	Eggert, Christophe Cogălniceanu, Dan Veith, Michael Dzukic, Georg Taberlet, Pierre
Copyright Year	2006
Abstract	Populations of the European Spadefoot toad (Pelobates fuscus) have experienced recent declines all over Europe, but these appear to be more intense in north and western Europe. Due to the toad’s fossorial nature and specific habitat requirements, environmental conditions have played a major role in structuring current populations. We examined the phylogeographic structure in P. fuscus from 16 localities throughout Europe using mitochondrial cytochrome b gene sequence analysis. Sequence divergence among haplotypes was low (0.54±0.15%). Three very closely related haplotypes occupy northern and western parts of Europe whereas 12 others were observed among samples from south-eastern Europe, including the Balkans. Our results suggest that toads only recently colonized the northern and western parts of Europe following glacial retreat. This expansion probably took place in steppic-like areas during the younger Dryas cold interval, about 12,900–11,500 years ago. Restricted gene flow with an isolation-by-distance population structure characterises a major part of its distribution range. Based on our results we suggest that the northern and western lineages should be considered as distinct conservation units, while the south-eastern populations from the refugial areas, where nearly all genetic polymorphism occurs and populations appear less vulnerable, should receive special attention.
Starting Page	185
Ending Page	195
Page Count	11
File Format	PDF
ISSN	15660621
Journal	Conservation Genetics
Volume Number	7
Issue Number	2
e-ISSN	15729737
Language	English
Publisher	Springer Netherlands
Publisher Date	2006-03-02
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	amphibian decline Dryas global changes low polymorphism mtDNA nested clade phylogeographic analysis Pelobates fuscus Spadefoot toad Evolutionary Biology Plant Sciences Animal Anatomy / Morphology / Histology Human Genetics
Content Type	Text
Resource Type	Article
Subject	Genetics Ecology, Evolution, Behavior and Systematics

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The declining Spadefoot toad, Pelobates fuscus (Pelobatidae): paleo and recent environmental changes as a major influence on current population structure and status

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The declining Spadefoot toad, Pelobates fuscus (Pelobatidae): paleo and recent environmental changes as a major influence on current population structure and status