Mannophryne olmonae

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	AMPHIBIA	ANURA	AROMOBATIDAE

Scientific Name:

Mannophryne olmonae

Species Authority:

(Hardy, 1983)

Common Name/s:

English

–

Bloody Bay Poison Frog

Assessment Information [top]

Red List Category & Criteria:	Critically Endangered A2ae; B1ab(v) ver 3.1
Year Published:	2004
Assessor/s:	Jerry Hardy
Reviewer/s:	Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)
Contributor/s:
Justification: Listed as Critically Endangered because of a drastic population decline, estimated to be more than 80% over the last three generations, inferred from the apparent disappearance of most of the population, perhaps due to chytridiomycosis; and because its Extent of Occurrence is less than 100 km2, its distribution is severely fragmented, and there is continuing decline in the number of mature individuals.

Geographic Range [top]

Range Description:	This species is restricted to the upland areas of north-eastern Tobago Island and Little Tobago Island, Trinidad and Tobago. It is found at elevations of between 120 and 360m asl.
Countries:	Native: Trinidad and Tobago
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	Populations of this species have declined significantly over the last 10 years, prior to which it was thought to be relatively abundant.
Population Trend:	Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	This is a tropical forest species. Males of this species call from rocks in streams during the daytime. The eggs are laid on land; hatching tadpoles (11-19 in number) are carried to streams by the male where they complete their development. It is not thought to occur in degraded habitat.
Systems:	Terrestrial; Freshwater

Threats [top]

Major Threat(s):	The causes of the current decline in this species are unknown. Areas of suitable habitat remain and there are no known human impacts on the species. It is possible that the species might have been impacted by chytridiomycosis, though this has not been proven.

Major Threat(s):

The causes of the current decline in this species are unknown. Areas of suitable habitat remain and there are no known human impacts on the species. It is possible that the species might have been impacted by chytridiomycosis, though this has not been proven.

Conservation Actions [top]

Conservation Actions:	The rainforest in which this species occurs in Tobago is protected in Little Tobago Wildlife Sanctuary. Survey work is required to monitor the population status and trends of this species, and research into the causes of the decline of this species is needed; a captive breeding programme might need to be established if the threat of chytridiomycosis proves real.

Conservation Actions:

The rainforest in which this species occurs in Tobago is protected in Little Tobago Wildlife Sanctuary. Survey work is required to monitor the population status and trends of this species, and research into the causes of the decline of this species is needed; a captive breeding programme might need to be established if the threat of chytridiomycosis proves real.

Citation:	Jerry Hardy 2004. Mannophryne olmonae. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 26 May 2013.
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