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Nycteris tragata 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Chiroptera Nycteridae

Scientific Name: Nycteris tragata
Species Authority: (K. Andersen, 1912)
Common Name(s):
English – Malayan Slit-faced Bat
Taxonomic Notes: This species is often considered to be a subspecies of N. javanica (Corbet and Hill 1992). However it is recognised as a distinct species by Simmons (2005), also see Ellerman and Morrison-Scott (1955) and Van Cakenberghe and De Vree (1993).

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Kingston, T. & Meijaard, E.
Reviewer(s): Hutson, A.M., Racey, P.A. (Chiroptera Red List Authority), Chanson, J. & Chiozza, F. (Global Mammal Assessment Team)
Justification:
Listed as Near Threatened, although it is widespread, there is significant deforestation occurring at a rapid rate throughout its range. It seems to be a naturally uncommon species, and its preference for primary forest means it is particularly susceptible to loss of its habitat. Its populations are likely to decline by close to 30% over the next 15 years due to habitat loss making it close to qualifying for Vulnerable under criterion A3.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species' distribution includes Myanmar, Thailand, Peninsular Malaysia, Sumatra (Indonesia) and throughout Borneo (Simmons 2005).The type locality for this species is Bidi caves, Sarawak, Borneo Malaysia.
Countries occurrence:
Native:
Brunei Darussalam; Indonesia; Malaysia; Myanmar; Singapore; Thailand
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is uncommon.
Current Population Trend:Decreasing
Additional data:
♦ Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:It has been collected from primary Dipterocarp forest and peat swamp forest (I. Maryanto pers. comm.). It roosts in small groups in fallen tree hollows and similar man-made hollows such as culverts as well as crevices of large boulders and in limestone caves.
Systems:Terrestrial

Threats [top]

Major Threat(s): The major threat for this species is habitat loss due to deforestation for logging, plantations, agriculture, as well forest fire.

Conservation Actions [top]

Conservation Actions: The species range includes several protected areas.

Classifications [top]

7. Caves and Subterranean Habitats (non-aquatic) -> 7.1. Caves and Subterranean Habitats (non-aquatic) - Caves
suitability:Suitable  
0. Root -> 6. Rocky areas (eg. inland cliffs, mountain peaks)
suitability:Suitable  
1. Forest -> 1.8. Forest - Subtropical/Tropical Swamp
suitability:Suitable  
1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
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 -> 2.1.2. Small-holder farming
♦ 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 -> 2.1.3. Agro-industry farming
♦ 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 -> 5.3.4. Unintentional effects: (large scale) [harvest]
♦ 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 -> 7.1.3. Trend Unknown/Unrecorded
♦ timing:Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation
1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.3. Life history & ecology

Bibliography [top]

Corbet, G.B. and Hill, J.E. 1992. Mammals of the Indo-Malayan Region: a Systematic Review. Oxford University Press, Oxford, UK.

Ellerman, J. R. and Morrison-Scott, T. C. S. 1955. Supplement to Chasen (1940) A handlist of Malaysian mammals, containing a generic synonomy and a complete index. British Museum (Natural History), London, UK.

IUCN. 2008. IUCN Red List of Threatened Species. Available at: http://www.iucnredlist.org. (Accessed: 5 October 2008).

Simmons, N.B. 2005. Order Chiroptera. In: D.E. Wilson and D.M. Reeder (eds), Mammal Species of the World, pp. 312-529. The Johns Hopkins University Press, Baltimore, MD, USA.

Van Cakenberghe, V. and De Vree, F. 1993. The systematic status of southeast Asian Nycteris (Chiroptera: Nycteridae). Mammalia 57(2): 227-244.
Citation: Kingston, T. & Meijaard, E. 2008. Nycteris tragata. The IUCN Red List of Threatened Species 2008: e.T14937A4480733. . Downloaded on 26 June 2017.
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