Animalia > Chordata > Reptilia > Testudines > Testudinidae > Aldabrachelys > Aldabrachelys gigantea
 

Aldabrachelys gigantea (Aldabra giant tortoise)

Synonyms:

Wikipedia Abstract

The Aldabra giant tortoise (Aldabrachelys gigantea), from the islands of the Aldabra Atoll in the Seychelles, is one of the largest tortoises in the world. Historically, giant tortoises were on many of the western Indian Ocean islands, as well as Madagascar, and the fossil record indicates giant tortoises once occurred on every continent and many islands with the exception of Australia and Antarctica. Many of the Indian Ocean species were thought to be driven to extinction by over-exploitation by European sailors, and they were all seemingly extinct by 1840 with the exception of the Aldabran giant tortoise on the island atoll of Aldabra. Although some remnant individuals of A. g. hololissa and A. g. arnoldi may remain in captivity, in recent times, these have all been reduced as subspecies
View Wikipedia Record: Aldabrachelys gigantea

Infraspecies

Aldabrachelys gigantea arnoldi (Seychelles saddle-backed tortoise)
Aldabrachelys gigantea daudinii (Daudins Giant Tortoise)
Aldabrachelys gigantea gigantea
Aldabrachelys gigantea hololissa (Seychelles giant tortoise)

Attributes

Maximum Longevity [1]  152 years

Ecoregions

Name Countries Ecozone Biome Species Report Climate Land
Use
Aldabra Island xeric scrub Seychelles Afrotropic Deserts and Xeric Shrublands  

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Aldabra Special Reserve 86487 Seychelles    

Biodiversity Hotspots

Name Location Endemic Species Website
Madagascar and the Indian Ocean Islands Comoros, Madagascar, Mauritius, Seychelles Yes

Prey / Diet

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Eulemur fulvus (brown lemur)1
Foudia eminentissima (Comoros Fody)1
Pteropus niger (greater mascarene flying fox)1
Pteropus seychellensis (Seychelles flying fox)1
Varecia variegata (ruffed lemur)1

Institutions (Zoos, etc.)

Distribution

Aldabra Special Reserve; Aldabra Atoll (Indian Ocean, Grande Terre, Picard, Malabar), introduced on Curieuse and Fregate (granitic Seychelles). Small groups exist on Cerf, Moyenne, Silhouette, Cousin, Cousine, Bird and Denis in the central Seychelles, on several of the Amirantes,;

External References

Photos

Citations

Attributes / relations provided by
1de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
2The Growth, Ecology, and Population Structure of the Giant Tortoises on Aldabra, P. Grubb, Phil. Trans. Roy. Soc. Lond. B, Vol. 260, 1971, pp. 327–372.
3VEGETATION OF ALDABRA, A REASSESSMENT, R.J. Hnatiuk and L.F.H. Merton, ATOLL RESEARCH BULLETIN NO. 239, THE SMITHSONIAN INSTITUTION, 1979
4Plant Dispersal by the Aldabran Giant Tortoise, Geochelone gigantea (Schweigger), S.H. Hnatiuk, Oecologia (Berl.) 36, 345-350 (1978)
5VERTEBRATE SEED DISPERSERS IN MAURITIUS: FRUIT TRAITS AND FRUIT TRAIT PREFERENCES, Gabor von Bethlenfalvy, Diploma thesis, University of Zurich, Switzerland
6Feeding Ecology and Seasonal Movements of Giant Tortoises on Aldabra Atoll, C.W.D. Gibson and J. Hamilton, Oecologia (Berlin) (1983) 56:84-92
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Protected Areas provided by Ramsar Sites Information Service
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License