Temporal changes in allelic variation among Cape Dwarf Chameleons,Bradypodion pumilum, inhabiting a transformed, semi-urban wetland

Autor:	Eric M. Katz, Jacqueline M. Bishop, Krystal A. Tolley
Rok vydání:	2013
Předmět:	Habitat fragmentation Ecology Population genetics Biology biology.organism_classification Critically endangered Habitat destruction Cape biology.animal Threatened species Animal Science and Zoology Chamaeleonidae Bradypodion pumilum Ecology Evolution Behavior and Systematics
Zdroj:	African Journal of Herpetology. 63:1-12
ISSN:	2153-3660 2156-4574
Popis:	The Cape Dwarf Chameleon, Bradypodion pumilum, is threatened by extensive habitat loss and transformation in the Western Cape Province of South Africa. As a result, the species exists as a collection of populations inhabiting an increasingly fragmented landscape within a critically endangered ecosystem. In this study we monitored microsatellite genetic variation in one of these populations of B. pumilum across a three-year period. From the results of a temporary site-vacancy of adult chameleons during the study, we anticipated a significant shift in microsatellite allele frequencies. Using data from eight highly polymorphic loci we detected differences in the allelic composition of chameleons inhabiting the study site between pre- and post-site-vacancy periods (AMOVA RST = 0.017; P = 0.019). Results suggest that recolonisation by immigrant chameleons, from an adjacent vegetation fragment connected to the study site by corridors, caused the recorded shifts in allelic frequencies. Pairwise tests of ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0214fc65b6c33daaa7bccd56d48a21d7 https://doi.org/10.1080/21564574.2013.834852 Zobrazit plný text záznamu