|Scientific Name:||Incilius periglenes|
|Species Authority:||(Savage, 1967)|
Bufo periglenes Savage, 1967
|Red List Category & Criteria:||Extinct ver 3.1|
|Assessor/s:||Alan Pounds, Jay Savage, Federico Bolaños|
|Reviewer/s:||Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)|
Listed as Extinct because it has not been recorded since 1989, and extensive searches in the appropriate habitat, during the appropriate season within the known range, have failed to locate this species.
|Range Description:||This species was known only from the Reserva Biológica Monteverde, Costa Rica, at elevations of 1,500-1,620m asl.|
Regionally extinct:Costa Rica
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||Formerly a common species, no specimen has been seen since 1989. It last bred in normal numbers in 1987, and its breeding sites were well known. In 1988, only eight males and two females could be located. In 1989, a single male was found, and was the last record of the species. Extensive searches since this time have failed to produce any more records (as of August, 2007).|
|Habitat and Ecology:||It lived in cloud and elfin forest, and was recorded breeding in temporary pools at the beginning of the rainy season.|
|Major Threat(s):||Its restricted range, global warming, chytridiomycosis and airborne pollution probably contributed to this species' extinction.|
Its entire range was protected by the Reserva Biológica Monteverde.
It is listed on CITES Appendix I (as Bufo periglenes).
Crump, M.L. 1989. Life history consequences of feeding versus non-feeding in a facultatively non-feeding toad larva. Oecologia: 486-489.
Crump, M.L., Hensley, F.R. and Clark, K.L. 1992. Apparent decline of the golden toad: Underground or extinct? Copeia: 413-420.
IUCN. 2004. 2004 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 23 November 2004.
Jacobson, S.K. and Vandenberg, J.J. 1991. Reproductive ecology of the endangered golden toad (Bufo periglenes). Journal of Herpetology: 321-327.
Pounds, J.A. and Crump, M.L. 1994. Amphibian declines and climate disturbance: The case of the golden toad and the harlequin frog. Conservation Biology: 72-85.
Pounds, J.A., Fogden, M.P.L. and Campbell, J.H. 1999. Biological response to climate change on a tropical mountain. Nature: 611-615.
Pounds, J.A., Fogden, M.P.L., Savage, J.M. and Gorman, G.C. 1997. Tests of null models for amphibian declines on a tropical mountain. Conservation Biology 11: 1307-1322.
Savage, J.M. 1966. An extraordinary new toad (Bufo) from Costa Rica. Revista de Biologia Tropical: 153-167.
Savage, J.M. 2002. The Amphibians and Reptiles of Costa Rica: A Herpetofauna between two Continents, between two Seas. University of Chicago Press, Chicago.
|Citation:||Alan Pounds, Jay Savage, Federico Bolaños 2004. Incilius periglenes. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 09 March 2014.|
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