Literaturdatenbank
Literaturdatenbank |
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Edwards, D. L., Benavide, E., Garrick, R. C., Gibbs, J. P., Russello, M. A., & Dion, K. B., et al. (2013). The genetic legacy of lonesome george survives: Giant tortoises with pinta island ancestry identified in galápagos. Biological Conservation, 157, 225–228.
Added by: Admin (06 Jan 2014 18:22:46 UTC) |
| Resource type: Journal Article DOI: http://dx.doi.org/10.1016/j.biocon.2012.10.014 BibTeX citation key: Edwards2013a View all bibliographic details  |
Categories: General Keywords: Chelonoidis nigra, Genetik - genetics, Schildkröten - turtles + tortoises, Testudinidae Creators: Benavide, Caccone, Dion, Edwards, Flanagan, Garrick, Gibbs, Hyseni, Russello, Tapia Collection: Biological Conservation |
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| Abstract |
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Testudinidae Geochelone nigra The death of Lonesome George, the last known purebred individual of Chelonoidis abingdoni native to Pinta Island, marked the extinction of one of 10 surviving giant tortoise species from the Galápagos Archipelago. Using a DNA reference dataset including historical C. abingdoni and >1600 living Volcano Wolf tortoise samples, a site on Isabela Island known to harbor hybrid tortoises, we discovered 17 individuals with ancestry in C. abingdoni. These animals belong to various hybrid categories, including possible first generation hybrids, and represent multiple, unrelated individuals. Their ages and relative abundance suggest that additional hybrids and conceivably purebred C. abingdoni individuals still occur on Volcano Wolf. Spatial analyses suggest locations where additional individuals with C. abingdoni ancestry are most likely to be recovered, consistent with historical records of human movement of tortoises. These results provide an opportunity for species recovery of Pinta Island tortoises using individuals with C. abingdoni ancestry.
Added by: Admin |