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Amanipodagrion gilliesi

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA ARTHROPODA INSECTA ODONATA MEGAPODAGRIONIDAE

Scientific Name: Amanipodagrion gilliesi
Species Authority: Pinhey, 1962

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii)+2ab(iii); C2a(ii) ver 3.1
Year Published: 2010
Assessor/s: Clausnitzer, V.
Reviewer/s: Tchibozo, S., Ogbogu, S.S. & Smith, K. (IUCN Freshwater Biodiversity Unit)
Contributor/s:
Justification:
The species is listed as Critically Endangered in view of extent of occurrence estimated to be less than 100 km² and area occupancy estimated to be less than 10 km². Only one single population with population size estimated to number fewer than 250 mature individuals and one subpopulation with far fewer than 50 mature individuals were found during the last survey (2002) (see Clausnitzer 2003). The viable population of Amanipodagrion gilliesi is currently protected by the Amani-Sigi Forest Reserve. A single male was found in a stream outside this forest reserve. It seems, that Amanipodagrion had occurred in streams at steep slopes between 200-400 m at the eastern slopes of the East Usambara Mts. These areas are largely unprotected and have become increasingly populated with all consequence (forest destruction, pollution). An extensive survey of the whole area and a detailed study on the species biology and ecology are urgent necessary.
History:
2006 – Critically Endangered
2006 – Critically Endangered (IUCN 2006)
1996 – Endangered
1994 – Endangered (Groombridge 1994)
1990 – Endangered (IUCN 1990)
1988 – Endangered (IUCN Conservation Monitoring Centre 1988)
1986 – Endangered (IUCN Conservation Monitoring Centre 1986)

Geographic Range [top]

Range Description: The species has been recorded from the Sigi Forest in east Usambara Mts in Tanzania.
Countries:
Native:
Tanzania, United Republic of
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Its known geographic range is very small, and it is estimated that there are less than 500 individuals left within declining populations.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: Small forest streams, closed canopy.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): Forest destruction is a potential threat to the species. No immediate threats are known to be affecting the main population of this species known within the Amani-Sigi Forest Reserve. Other populations in the vicinity are already extinct or on the border of extinction due to forest destruction and water pollution (see Clausnitzer 2003).

Conservation Actions [top]

Conservation Actions: Policy-based actions needed as well as increasing awareness. Research into population numbers and range, biology and ecology, habitat status, threats, conservation measures, and trends/monitoring of this species would be valuable. Habitat and site-based actions are also required.
Citation: Clausnitzer, V. 2010. Amanipodagrion gilliesi. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 23 May 2013.
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