Chiroderma improvisum 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Chiroptera Phyllostomidae

Scientific Name: Chiroderma improvisum
Species Authority: Baker & Genoways, 1976
Common Name(s):
English Guadeloupean Big-eyed Bat, Guadeloupe Big-eyed Bat

Assessment Information [top]

Red List Category & Criteria: Vulnerable B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Dávalos, L. & Rodriguez, A.
Reviewer(s): Medellín, R. (Chiroptera Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
Listed as Vulnerable because the extent of occurrence is <20,000 km² and area of occupancy is <2,000 km² and the growing human population on the island is displacing habitats and causing a population decline.
Previously published Red List assessments:
1996 Endangered (EN)

Geographic Range [top]

Range Description: This species is known from Guadeloupe and Montserrat (Lesser Antilles) (Simmons, 2005).
Countries occurrence:
Guadeloupe; Montserrat
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species apparently is rare (Jones and Baker, 1980).
Current Population Trend: Unknown
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: Little is known about its natural history; presumably it is frugivorous like other members of the genus; it has been collect in open field adjacent to gallery forest, over streams, and under gallery forest (Jones and Baker, 1980).
Systems: Terrestrial

Threats [top]

Major Threat(s): This species is threatened by habitat conversion. Hurricanes and Mt Serrat (volcanic eruption) are also potential threats (Davalos pers. comm.)

Conservation Actions [top]

Conservation Actions: Not known.

Classifications [top]

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
10. Geological events -> 10.1. Volcanoes
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

11. Climate change & severe weather -> 11.4. Storms & flooding
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation
  • 2. Species Stresses -> 2.1. Species mortality
  • 2. Species Stresses -> 2.2. Species disturbance

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

Bibliography [top]

Jones Jr., J.K. and Baker, R.J. 1980. Chiroderma improvisum. Mammalian Species 134: 1-2.

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.

Citation: Dávalos, L. & Rodriguez, A. 2008. Chiroderma improvisum. The IUCN Red List of Threatened Species 2008: e.T4665A11073587. . Downloaded on 25 May 2016.
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