|Scientific Name:||Lycognathophis seychellensis (Schlegel, 1837)|
Scopelophis seychellensis (Schlegel, 1837)
|Taxonomic Notes:||We follow Smith and Wallach (1994) in including this species in the monotypic genus Lycognathophis, rather than in Scopelophis, as proposed by Dowling (1990).|
|Red List Category & Criteria:||Endangered B1ab(iii)+2ab(iii) ver 3.1|
|Assessor(s):||Gerlach, J. & Ineich, I.|
|Reviewer(s):||Cox, N. & Stuart, S.N. (Global Reptile Assessment)|
Listed as Endangered, because its extent of occurrence is 2,700 km² and its area of occupancy is 133 km², its distribution is severely fragmented, and there is a continuing decline in the extent and quality of its forest habitat, especially on Mahé and Praslin islands.
|Range Description:||This species is endemic to Seychelles islands of Mahé, Silhouette, Praslin, Aride, La Digue and Frégate, where it occurs from sea-level up to 914 m.|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||Its population was estimated at 10,038 ± 2,449 animals in 2005 (Gerlach in prep).|
|Current Population Trend:||Decreasing|
|Habitat and Ecology:||It is a diurnal predator of geckos and skinks, found in forest. It occurs in secondary habitats but is principally found in native vegetation (especially high forest). Secondary habitat is suitable if plant diversity is high and regeneration of native trees occurring, but abandoned plantations and severely degraded habitat appear to be unsuitable. Details of its reproductive biology are largely unknown.|
|Major Threat(s):||It is impacted by predation by introduced tenrecs (Tenrec ecaudatus) on Mahé and Praslin. Ongoing invasion of forests (especially on Mahé and Praslin) by Cinnamomum verum is degrading all forest habitats, and this represents a threat to the species.|
|Conservation Actions:||It is present in the Morne Seychellois and Praslin National Parks, and in the Aride Special Reserve. There is a record from the Cousine Special Reserve but it is not known if this represents an established population. The major populaiton on Silhouette island should be included with a protected area.|
Cadle, J.E. 1987. Geographic distribution: problems in phylogeny and zoogeography. In: R.A. Seigel, J.T. Collins & S.S. Novak (eds). Snakes: Ecology and Evolutionary Biology. pp: 77–105. Macmillan Publishing, New York.
Dowling, H.G. 1990. Taxonomic status and relationships of the genus Lycognathophis. Herpetologica 46: 60–66.
Gerlach, J. In prep. Status assessments of Seychelles lizards and snakes.
IUCN. 2006. IUCN Red List of Threatened Species.
Nussbaum, R.A. 1984. Snakes of the Seychelles. In: D.R. Stoddart (ed.) Biogeography and Ecology of the Seychelles Islands Dr. W. Junk, The Hague.
Smith, H.B. and Wallach, V. 1994. Lycognathophis Boulenger, 1893 (Reptilia, Serpentes): proposed conservation. Bulletin of Zoological Nomenclature 51: 330–331.
|Citation:||Gerlach, J. & Ineich, I. 2006. Lycognathophis seychellensis. The IUCN Red List of Threatened Species 2006: e.T61427A12481585.Downloaded on 14 December 2017.|
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