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Brookesia vadoni 

Scope:Global
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_onStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Reptilia Squamata Chamaeleonidae

Scientific Name: Brookesia vadoni
Species Authority: Brygoo & Domergue, 1968

Assessment Information [top]

Red List Category & Criteria: Vulnerable B1ab(iii) ver 3.1
Year Published: 2011
Date Assessed: 2011-01-25
Assessor(s): Jenkins, R.K.B., Andreone, F., Andriamazava, A., Anjeriniaina, M., Glaw, F., Rabibisoa, N., Rakotomalala, D., Randrianantoandro, J.C., Randrianiriana, J., Randrianizahana , H., Ratsoavina, F. & Robsomanitrandrasana, E.
Reviewer(s): Bowles, P. & Tolley, K.
Justification:
Listed as Vulnerable as the species has an extent of occurrence of 14,355 km² in northern Madagascar, within which it occurs as a severely fragmented population, and there is a continuing decline in habitat due mainly to agricultural activities.

Geographic Range [top]

Range Description:

This chameleon is endemic to northern Madagascar, where it is known from Tsararano between 600 and 850 m asl. (Andreone et al. 2000), Masoala (Carpenter and Robson 2005), Makira (Razafindrasoa and Randrianantoandro 2003), Marojejy, and Anjanaharibe Sud between 1,200 and 2,130 m elevation (Raxworthy et al. 1998, Raselimanana et al. 2000). It may occur at additional localities, but it is not likely to range much more widely than its estimated extent of occurrence of 14,335 km².

Countries occurrence:
Native:
Madagascar
Additional data:
Continuing decline in extent of occurrence (EOO):UnknownExtreme fluctuations in extent of occurrence (EOO):No
Number of Locations:5-10Continuing decline in number of locations:Unknown
Extreme fluctuations in the number of locations:UnknownLower elevation limit (metres):600
Upper elevation limit (metres):2130
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:There is no information on the population of this cryptic species. Due to heavy pressure on and the patchy distribution of the remaining forests of northeastern Madagascar, the population is presumed to be both declining and severely fragmented.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:Yes

Habitat and Ecology [top]

Habitat and Ecology:

This species inhabits relatively intact low, mid and high elevation humid forest (Raxworthy et al. 1998, Raselimanana et al. 2000).

Systems:Terrestrial

Use and Trade [top]

Use and Trade: This species is not currently traded from Madagascar, although there was a very low level of trade in the early 1990s.

Threats [top]

Major Threat(s): This species is threatened by the loss of humid forest due to slash-and-burn agriculture. It may also be negatively impacted by selective logging, especially for rosewood.

Conservation Actions [top]

Conservation Actions: This species occurs in a number of strict protected areas in the northeast, and is found at relatively high elevations where human pressures are typically lowest. Research is needed into population trends, and protection needs to be enforced in reserves threatened by rosewood exploitation.

Classifications [top]

1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
suitability: Suitable  major importance:Yes
1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
suitability: Suitable  major importance:Yes
1. Land/water protection -> 1.2. Resource & habitat protection
2. Land/water management -> 2.1. Site/area management

In-Place Research, Monitoring and Planning
  Action Recovery plan:No
  Systematic monitoring scheme:No
In-Place Land/Water Protection and Management
  Occur in at least one PA:Yes
In-Place Species Management
  Harvest management plan:No
  Successfully reintroduced or introduced beningly:No
  Subject to ex-situ conservation:No
In-Place Education
  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: Unknown ⇒ Impact score: Unknown 
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion

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

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

Bibliography [top]

Andreone, F., Randrianirina, J.E., Jenkins, P.D. and Aprea, G. 2000. Species diversity of Amphibia, Reptilia and Lipotyphla (Mammalia) at Ambolokopatrika, a rainforest between the Anjanaharibe-Sud and Marojejy massifs, NE Madagascar. Biodiversity and Conservation 9: 1587-1622.

Brygoo, E.R. 1978. Reptiles Sauriens Chamaeleonidae. Genre Brookesia et complément pour le genre Chamaeleo. Faune de Madagascar 47: 1-173.

Carpenter, A.I. and Robson, O. 2005. A review of the endemic chameleon genus Brookesia from Madagascar, and the rationale for its listing on CITES Appendix II. Oryx 39: 375-380.

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

Raselimanana, A.P., Raxworthy, C.J. and Nussbaum, R.A. 2000. Herpetofaunal species diversity and elevational distribution within the Parc National de Marojejy, Madagascar. Fieldiana Zoology 97: 157-174.

Raxworthy, C.J., Andreone, F., Nussbaum, R.A., Rabibisoa, N. and Randriamahazo, H.R. 1998. Amphibians and reptiles of the Anjanaharibe-Sud Massif, Madagascar: Elevational distribution and regional endemicity. In A floral and faunal inventory of the Réserve Spéciale d'Anjanaharibe-Sud: with reference to elevational variation. Fieldiana: Zoology 90: 79-92.

Razafindrasoa, R.R. and Randrianantoandro, J.C. 2003. Inventaire biologique des espèces d’amphibiens et reptiles dans le plateau de Makira (Nord Est de Madagascar). Wildlife Conservation Society, unpublished report.


Citation: Jenkins, R.K.B., Andreone, F., Andriamazava, A., Anjeriniaina, M., Glaw, F., Rabibisoa, N., Rakotomalala, D., Randrianantoandro, J.C., Randrianiriana, J., Randrianizahana , H., Ratsoavina, F. & Robsomanitrandrasana, E. 2011. Brookesia vadoni. The IUCN Red List of Threatened Species 2011: e.T172858A6930812. . Downloaded on 01 July 2016.
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