Literaturdatenbank
Literaturdatenbank |
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Freedberg, S. B., Ewert, M. A., Ridenhour, B. J., Neiman, M., & Nelson, C. E. (2005). Nesting fidelity and molecular evidence for natal homing in the freshwater turtle, graptemys kohnii. Proceedings of the Royal Society of London - Biological Sciences, 272(1570), 1345–1350.
Added by: Sarina Wunderlich (18 Oct 2008 11:56:20 UTC) |
| Resource type: Journal Article DOI: 10.1098/rspb.2005.3080 BibTeX citation key: Freedberg2005 View all bibliographic details  |
Categories: General Keywords: Emydidae, Graptemys, Graptemys ernsti, Habitat = habitat, Schildkröten = turtles + tortoises, Zeitigung = incubation Creators: Ewert, Freedberg, Neiman, Nelson, Ridenhour Collection: Proceedings of the Royal Society of London - Biological Sciences |
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| URLs http://www.pubmedc ... fcgi?artid=1560332 |
| Abstract |
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Numerous studies of sea turtle nesting ecology have revealed that females exhibit natal homing, whereby they imprint on the nesting area from which they hatch and subsequently return there to nest as adults. Because freshwater turtles comprise the majority of reptiles known to display environmental sex determination (ESD), the study of natal homing in this group may shed light on recent evolutionary models of sex allocation that are predicated on natal homing in reptiles with ESD. We examined natal homing in Graptemys kohnii, a freshwater turtle with ESD, using mitochondrial sequencing, microsatellite genotyping and mark and recapture of 290 nesting females. Females showed high fidelity to nesting areas, even after being transplanted several kilometres away. A Mantel test revealed significant genetic isolation by distance with respect to nesting locations (r=0.147; p<0.05), suggesting that related females nest in close proximity to one another. The patterns of fidelity and genotype distributions are consistent with homing at a scale that may affect population sex ratios. Keywords: natal homing, turtle, sex ratio, environmental sex determination, microsatellite genotyping Added by: Sarina Wunderlich |
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WIF
Added by: Sarina Wunderlich |