Abstract:
:Many amphibian lineages show terrestrialization of their reproductive strategy and breeding is partially or completely independent of water. A number of causal factors have been proposed for the evolution of terrestrialized breeding. While predation has received repeated attention as a potential factor, the influence of other factors such as habitat has never been tested using appropriate data or methods. Using a dataset that comprises 180 amphibian species from various East African habitats, we tested whether species occurring in different habitats show different patterns of terrestrialization in their breeding strategy. We recovered a significant association between terrestrialized breeding strategies and forest habitats. In general, forest seems to act as a facilitator, providing a permissive environment for the evolution of terrestrialized breeding strategies. However, while terrestrial oviposition is strongly correlated with lowland and montane forest habitat, complete terrestrial development is significantly correlated with montane forest only, indicating different selective pressures acting at different steps towards complete terrestrial development.
journal_name
Biol Lettjournal_title
Biology lettersauthors
Müller H,Liedtke HC,Menegon M,Beck J,Ballesteros-Mejia L,Nagel P,Loader SPdoi
10.1098/rsbl.2012.1146subject
Has Abstractpub_date
2013-03-27 00:00:00pages
20121146issue
3eissn
1744-9561issn
1744-957Xpii
rsbl.2012.1146journal_volume
9pub_type
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