Title |
How do climate-linked sex ratios and dispersal limit range boundaries?
|
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Published in |
BMC Ecology and Evolution, July 2014
|
DOI | 10.1186/1472-6785-14-19 |
Pubmed ID | |
Authors |
Maria Boyle, Lisa E Schwanz, Jim Hone, Arthur Georges |
Abstract |
Geographic ranges of ectotherms such as reptiles may be determined strongly by abiotic factors owing to causal links between ambient temperature, juvenile survival and individual sex (male or female). Unfortunately, we know little of how these factors interact with dispersal among populations across a species range. We used a simulation model to examine the effects of dispersal, temperature-dependent juvenile survival and sex determining mechanism (temperature-dependent sex determination (TSD) and genotypic sex determination (GSD)) and their interactions, on range limits in populations extending across a continuous range of air temperatures. In particular, we examined the relative importance of these parameters for population persistence to recommend targets for future empirical research. |
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