Uvaria dependens 

Scope:Global
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_onStatus_cr_offStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Magnoliales Annonaceae

Scientific Name: Uvaria dependens
Species Authority: Engl. & Diels
Synonym(s):
Uvariastrum dependens (Engl. & Diels) Engl. & Diels

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii) ver 3.1
Year Published: 2009
Date Assessed: 2006-03-02
Assessor(s): Eastern Arc Mountains & Coastal Forests CEPF Plant Assessment Project
Reviewer(s): Beentje, H., Gereau, R., Kabuye, C., Kalema, J., Luke, Q., Lyaruu, H., Maunder, M., Mwachala, G., Ndangalasi, H., Njau, F. & Schatz, G. (East African Plants Red List Authority)
Justification:
The extent of occurrence is less than 5,000 kmĀ², the species is known from only three locations and there is continuing decline due to the impacts of people and invasive species on the extent and quality of the habitat where it is found. Should further surveys show this species to be more extensive in occurrence and that it is tolerant of disturbance, its status may need to be changed to Near Threatened.

Geographic Range [top]

Range Description:Known from three areas in Tanzania: East Usambara Mts (Amani), Udzungwa Mountains National Park and Dabaga Highlands, near Kibengu.
Countries occurrence:
Native:
Tanzania, United Republic of
Additional data:
Number of Locations:3
Lower elevation limit (metres):800
Upper elevation limit (metres):1950
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:Population seems to be small, but hard to tell as being a liane in the canopy it is difficult to spot.
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:An extensive liane which climbs to the tops of canopy trees in riverine forest. Can probably exceed 30 m in length.
Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes

Threats [top]

Major Threat(s): There is loss of habitat due to fires and encroaching cultivation, but may not be too severe. Amani was invaded by gold miners in 2005, although they have since been removed. There is also a problem with invasive alien plant species.

Conservation Actions [top]

Conservation Actions: Has been recorded from Udzungwa Mountain National Park, Ihangana Forest Reserve and Amani Nature Reserve.

Classifications [top]

1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
suitability: Suitable  
1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
suitability: Suitable  

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.1. Shifting agriculture
♦ 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

7. Natural system modifications -> 7.1. Fire & fire suppression -> 7.1.1. Increase in fire frequency/intensity
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

8. Invasive & other problematic species & genes -> 8.1. Invasive non-native/alien species -> 8.1.1. Unspecified species
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

Bibliography [top]

IUCN. 2009. IUCN Red List of Threatened Species (ver. 2009.2). Available at: www.iucnredlist.org. (Accessed: 3 November 2009).

Verdcourt, B. 1971. Annonaceae. In: C.E. Milne-Redhead and R.M. Polhill (eds), Flora of Tropical East Africa. Crown Agents for Overseas Governments and Administrations, London.


Citation: Eastern Arc Mountains & Coastal Forests CEPF Plant Assessment Project. 2009. Uvaria dependens. In: The IUCN Red List of Threatened Species 2009: e.T158091A5182609. . Downloaded on 25 July 2016.
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