Afrixalus dorsimaculatus 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Hyperoliidae

Scientific Name: Afrixalus dorsimaculatus
Species Authority: (Ahl, 1930)
Megalixalus dorsimaculatus Ahl, 1930
Taxonomic Source(s): Frost, D.R. 2013. Amphibian Species of the World: an Online Reference. Version 5.6 (9 January 2013). Electronic Database. American Museum of Natural History, New York, USA. Available at:
Taxonomic Notes: We follow Pickersgill (2007) in removing this species from the synonymy of Afrixalus uluguruensis.

Assessment Information [top]

Red List Category & Criteria: Vulnerable B1ab(iii) ver 3.1
Year Published: 2008
Date Assessed: 2008-01-01
Assessor(s): Martin Pickersgill
Reviewer(s): Simon Stuart, Neil Cox
Listed as Vulnerable because its Extent of Occurrence is less than 20,000 km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its forest habitat in the Eastern Arc Mountains of Tanzania.

Geographic Range [top]

Range Description: This species occurs in the Usambara (East and West) and Nguu Mountains in Tanzania. Its altitudinal range is not fully known, but it is a species of medium to high altitudes. Records from the coastal plain of Tanzania require confirmation.
Countries occurrence:
Tanzania, United Republic of
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It is abundant where it occurs.
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: Yes

Habitat and Ecology [top]

Habitat and Ecology: It is a forest-dependent species, and does not survive in degraded habitats. It breeds in swampy valley bottoms and temporary pools in closed-canopy forest.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): The main threat is habitat loss due to agricultural encroachment, logging, and expanding human settlements. Its habitat in the East Usambara Mountains 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.

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
5. Wetlands (inland) -> 5.4. Wetlands (inland) - Bogs, Marshes, Swamps, Fens, Peatlands
suitability: Suitable  major importance:Yes
5. Wetlands (inland) -> 5.8. Wetlands (inland) - Seasonal/Intermittent Freshwater Marshes/Pools (under 8ha)
suitability: Suitable  major importance:Yes
1. Land/water protection -> 1.1. Site/area protection
2. Land/water management -> 2.1. Site/area management

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over entire range
In-Place Species Management
In-Place Education
1. Residential & commercial development -> 1.1. Housing & urban areas
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.2. Small-holder farming
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

3. Energy production & mining -> 3.2. Mining & quarrying
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

5. Biological resource use -> 5.3. Logging & wood harvesting -> 5.3.5. Motivation Unknown/Unrecorded
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

1. Research -> 1.1. Taxonomy
1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.3. Life history & ecology
1. Research -> 1.5. Threats
1. Research -> 1.6. Actions
3. Monitoring -> 3.1. Population trends

Bibliography [top]

Harper, E. and Vonesh, J.R. 2003. Field Guide to the Amphibians of the East Usambara Mountains. Preliminary Draft.

Pickersgill, M. 2007. Frog Search. Results of Expeditions to Southern and Eastern Africa. Edition Chimaira, Frankfurt am Main.

Schiøtz, A. 1975. The Treefrogs of Eastern Africa. Steenstrupia, Copenhagen.

Schiøtz, A. 1999. Treefrogs of Africa. Edition Chimaira, Frankfurt am Main.

Citation: Martin Pickersgill. 2008. Afrixalus dorsimaculatus. The IUCN Red List of Threatened Species 2008: e.T136149A4250769. . Downloaded on 01 December 2015.
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