Literaturdatenbank
Literaturdatenbank |
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Gerlach, J. (2011). Aldabrachelys hololissa (günther 1877) – seychelles giant tortoise. In A. G. J. Rhodin, P. P. van Dijk, R. A. Saumure, K. A. Buhlmann & J. B.Iverson (Eds.), Vol. 5IUCN/SSC Tortoise and Freshwater Turtle Specialist Group.
Added by: Sarina Wunderlich (30 Jun 2012 22:00:57 UTC) |
| Resource type: Book Article DOI: 10.3854/crm.5.061.hololissa.v1.2011 BibTeX citation key: Gerlach2011a View all bibliographic details  |
Categories: General Keywords: Aldabrachelys arnoldi, Aldabrachelys dussumieri, Aldabrachelys hololissa, Habitat = habitat, Pazifik = Pacific, Schildkröten = turtles + tortoises Creators: , B.Iverson, Buhlmann, van Dijk, Gerlach, Rhodin, Saumure Publisher: IUCN/SSC Tortoise and Freshwater Turtle Specialist Group |
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| URLs http://www.iucn-tftsg.org/cbftt/ |
| Abstract |
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Testudinidae Summary. – The Seychelles Giant Tortoise, Aldabrachelys hololissa (= Dipsochelys hololissa) (Family Testudinidae) is a controversial species possibly distinct from the Aldabra giant tortoise, A. gigantea (= D. dussumieri of some authors). The species is a morphologically distinctive morphotype, but has so far not been genetically distinguishable from the Aldabra tortoise, and is considered by many researchers to be either synonymous with or only subspecifically distinct from that taxon. It is a domed grazing species, differing from the Aldabra tortoise in its broader shape and reduced ossification of the skeleton; it differs also from the other controversial giant tortoise in the Seychelles, the saddle-backed morphotype A. arnoldi. Aldabrachelys hololissa was apparently extirpated from the wild in the 1800s and is now known only from 37 adults, including 28 captive, 1 free-ranging on Cerf Island, and 8 on Cousine Island, 6 of which were released in 2011 along with 40 captive bred juveniles. Captive reared juveniles show that there is a presumed genetic basis to the morphotype and further genetic work is needed to elucidate this. Distribution. – Seychelles. Restricted to the granitic islands, original distribution unknown, but possible populations on Cerf, Cousine, Fregate, Mahé, Praslin, Round, and Silhouette islands. A wild population was re-established on Cousine Island in 2011. Synonymy. – Testudo hololissa Günther 1877, Dipsochelys hololissa, Aldabrachelys hololissa, Aldabrachelys gigantea hololissa, Dipsochelys dussumieri hololissa. Subspecies. – None. Status. – IUCN 2011 Red List: Not Evaluated (proposed listing: Extinct in the Wild, EW). CITES: Appendix II (as Testudinidae spp.).
Added by: Sarina Wunderlich |