Hoplophryne rogersi

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	MICROHYLIDAE

Scientific Name:

Hoplophryne rogersi

Species Authority:

Barbour & Loveridge, 1928

Common Name/s:

English

–

Usambara Blue-bellied Frog

Assessment Information [top]

Red List Category & Criteria:	Endangered B1ab(iii) ver 3.1
Year Published:	2004
Assessor/s:	Kim Howell, Simon Loader, James Vonesh, Michele Menegon
Reviewer/s:	Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson and Neil Cox)
Contributor/s:
Justification: Listed as Endangered because its Extent of Occurrence is probably less than 5,000 km2, its distribution is severely fragmented, and the quality and extent of its montane forest habitat in the Usambara and Nguu Mountains is declining.

Geographic Range [top]

Range Description:	This species is known with certainty only from the East Usambara Mountains (including the Magrotto ridge) and the Nguu Mountains in north-eastern Tanzania. It ranges from 600m to at least 1,200m asl.
Countries:	Native: Tanzania, United Republic of
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	It is generally an uncommon species, and is very hard to find outside the breeding season. However, it is easily found in the Amani Botanic Garden in the East Usambaras during the breeding season due to the extensive stands of exotic bamboo, with which it is closely associated (30% of holes in broken bamboo stems have been found to contain eggs, larvae or adults).
Population Trend:	Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	It is found in lowland and montane forest, and is sometimes associated with wild bananas. It appears to be very rare in heavily disturbed forest or in open areas. However, it is locally abundant in stands of introduced bamboo in the Amani Botanic Garden. The eggs are deposited in hollow bamboo stems or leaf axils (and perhaps tree holes) where water is trapped, and where the larvae develop.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	It is almost certainly adversely affected by ongoing forest loss, especially for small-scale agriculture. The habitat in the East Usambaras has recently come under serious threat as a result of the activities of illegal gold miners.

Major Threat(s):

It is almost certainly adversely affected by ongoing forest loss, especially for small-scale agriculture. The habitat in the East Usambaras has recently come under serious threat as a result of the activities of illegal gold miners.

Conservation Actions [top]

Conservation Actions:	It occurs in the Amani Nature Reserve, and in several forest reserves; there is a need for increased protection and improved management of these and other reserves in the East Usambaras.

Conservation Actions:

It occurs in the Amani Nature Reserve, and in several forest reserves; there is a need for increased protection and improved management of these and other reserves in the East Usambaras.

Citation:	Kim Howell, Simon Loader, James Vonesh, Michele Menegon 2004. Hoplophryne rogersi. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 26 May 2013.
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