Uroplatus guentheri 

Scope: Global
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_onStatus_cr_offStatus_ew_offStatus_ex_off

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Reptilia Squamata Gekkonidae

Scientific Name: Uroplatus guentheri
Species Authority: Mocquard, 1908

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii) ver 3.1
Year Published: 2011
Date Assessed: 2011-01-28
Assessor(s): Raxworthy, C.J., Rabibisoa, N. & Bora, P.
Reviewer(s): Cox, N.A. & Bowles, P.
Justification:
Listed as Endangered on the basis that it has an extent of occurrence of 3,554 km², it occurs as a severely fragmented population, and there is a continuing decline in the extent and quality of its habitat.

Geographic Range [top]

Range Description:This leaf-tailed gecko is endemic to Madagascar, where it has been recorded from scattered localities in the west of the island, at Ankarafantsika (Greenbaum et al. 2007, Ramanamanjato and Rabibisoa 2002, Raselimanana 2008), Andranomanintsy, Ambalimby/Masoarivo, Bemaraha and Kirindy (Raselimanana 2008), and Ankilogoa and Ranotsara  (Bora et al. 2010). It has been found at elevations between 30 and 120 m (Raselimanana 2008). The extent of occurrence, based on the area of known sites, is estimated to be 3,554 km².
Countries occurrence:
Native:
Madagascar
Additional data:
Number of Locations:4
Lower elevation limit (metres):30
Upper elevation limit (metres):120
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:

This forest-dependent species is likely to be declining, but there is no quantitative population information. It occurs at low densities at known sites. Recorded localities are widely-separated, and dry deciduous forest occurs as isolated patches in western Madagascar, so the population is considered to be severely fragmented.

Current Population Trend:Decreasing
Additional data:
Population severely fragmented:Yes

Habitat and Ecology [top]

Habitat and Ecology:

This nocturnal lizard lives in intact dry deciduous forest. It has been observed roosting and foraging on bushes and low trees at height of between one and six metres. It lays spherical eggs in leaf-litter.

Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes

Use and Trade [top]

Use and Trade: This species is exported annually from Madagascar for the international pet trade. The export quota in 2010 was 125 individuals, and it is likely that this will continue or stricter controls will be imposed.

Threats [top]

Major Threat(s): The intact forest on which this species depends is threatened by fires, cattle grazing, selective logging and charcoal production, and forest clearance for agriculture.

Conservation Actions [top]

Conservation Actions: This species occurs in Bemaraha and Ankarafantsika national parks. More information is needed on the population status of this gecko and the extent of its exposure to threats at known localities.

Classifications [top]

1. Forest -> 1.5. Forest - Subtropical/Tropical Dry
suitability:Suitable  major importance:Yes
1. Land/water protection -> 1.1. Site/area protection

In-Place Research, Monitoring and Planning
  Action Recovery plan:No
  Systematic monitoring scheme:No
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over part of range
  Occur in at least one PA:Yes
  Area based regional management plan:No
In-Place Species Management
  Harvest management plan:No
  Successfully reintroduced or introduced beningly:No
  Subject to ex-situ conservation:No
In-Place Education
  Subject to recent education and awareness programmes:No
  Included in international legislation:Yes
  Subject to any international management/trade controls:Yes
2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.1. Shifting agriculture
♦ timing:Ongoing ♦ scope:Minority (<50%) ♦ severity:Slow, Significant Declines ⇒ Impact score:Low Impact: 5 
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion

2. Agriculture & aquaculture -> 2.3. Livestock farming & ranching -> 2.3.2. Small-holder grazing, ranching or farming
♦ timing:Ongoing ♦ scope:Unknown ♦ severity:Unknown ⇒ Impact score:Unknown 
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

5. Biological resource use -> 5.3. Logging & wood harvesting -> 5.3.3. Unintentional effects: (subsistence/small scale) [harvest]
♦ timing:Ongoing ♦ scope:Minority (<50%) ♦ severity:Slow, Significant Declines ⇒ Impact score:Low Impact: 5 
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

7. Natural system modifications -> 7.1. Fire & fire suppression -> 7.1.1. Increase in fire frequency/intensity
♦ timing:Ongoing ♦ scope:Unknown ♦ severity:Unknown ⇒ Impact score:Unknown 
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation
  • 2. Species Stresses -> 2.1. Species mortality

1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.5. Threats

♦  Pets/display animals, horticulture
 International : ✓ 

Bibliography [top]

Bora, P., Randrianantoandro, J.C., Randrianavelona, R., Hantalalaina, E.F., Andriantsimanarilafy, R.R., Rakotondravony, D., Ramilijaona, O.R., Vences, M., Jenkins, R.K.B., Glaw, F. and Köhler, J. 2010. The herpetofauna of the Tsingy de Bemaraha plateau, western Madagasar: checklist, biogeography and conservation. Herpelogical Conservation and Biology 5: 111-125.

Greenbaum, E., Bauer, A.M., Jackman, T. R., Vences, M. and Glaw, F. 2007. A phylogeny of the enigmatic Madagascan geckoes of the genus Uroplatus (Squamata: Gekkonidae). Zootaxa 1493: 41-51.

IUCN. 2011. IUCN Red List of Threatened Species (ver. 2011.2). Available at: http://www.iucnredlist.org. (Accessed: 10 November 2011).

Ramanamanjato, J.-B. and Rabibisoa, N. 2002. Evaluation rapide de la diversité biologique de reptiles et amphibians de la Reserve Naturelle Integrale d'Ankarafantsika. In: L.E. Alosno,T. Schulenberg, S. Radilofe and O. Missa (eds), A Biological Assessment of the Reserve Naturelle Integrale d'Ankarafantsika, pp. 98-104. Conservation International, Washington D.C.

Raselimanana, A.P. 2008. Herpétofaune des forêts sèches malgaches. Malagasy Nature 1: 46-75.


Citation: Raxworthy, C.J., Rabibisoa, N. & Bora, P. 2011. Uroplatus guentheri. In: The IUCN Red List of Threatened Species 2011: e.T172927A6943019. . Downloaded on 04 December 2016.
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