Rhogeessa minutilla

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	MAMMALIA	CHIROPTERA	VESPERTILIONIDAE

Scientific Name:

Rhogeessa minutilla

Species Authority:

Miller, 1897

Common Name/s:

English

–

Tiny Yellow Bat

Taxonomic Notes:

There is a subspecies which might be a full species (Soriano pers. comm.)

Assessment Information [top]

Red List Category & Criteria:

Vulnerable A2c ver 3.1

Year Assessed:

2008

Assessor/s

Soriano, P. & Molinari, J.

Evaluator/s:

Medellín, R. (Chiroptera Red List Authority) & Schipper, J. (Global Mammal Assessment Team)

Justification:
Listed as Vulnerable because of a population decline, estimated to be >30% over the last 10 years, inferred from decline of its very specific habitat (areas with columnar cactus). The species area of occupation is sporadic and a small fraction of its extent of occurrence, it does not occur in protected areas, and there is shrinkage in distribution due to habitat destruction and degradation.

History:

1996

–

Lower Risk/near threatened

Geographic Range [top]

Range Description:	This species occurs in northeastern Colombia and coastal Venezuela (including Margarita Island) (Simmons, 2005). In Venezuela 0-860 m (Lew pers. comm.)
Countries:	Native: Colombia; Venezuela
Range Map:	(click map to view full version)

Population [top]

Population:	Where it occurs it is common, though it occurs sporatically across its range.
Population Trend:	Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	This bat is strongly insectivorous, it especially feeds on small aerial insects (like flies or moths) that it catches in open areas. It is generally found in small colonies (Linares, 1998).This is one of the first bat species to appear at dusk (Soriano pers. comm.) Lives in holes in columnar cactus arms (Soriano pers com).
Systems:	Terrestrial

Threats [top]

Major Threat(s):	Threats to this species include habitat conversion following infrastructure development, including industry, commercial and residential (and tourism), concentrated along the Venezuelan Coast, near shore islands (Margarita) and into the eastern Andes (Merida region) which together with its reliance on columnar cactus and restricted range are resulting in popula

Major Threat(s):

Threats to this species include habitat conversion following infrastructure development, including industry, commercial and residential (and tourism), concentrated along the Venezuelan Coast, near shore islands (Margarita) and into the eastern Andes (Merida region) which together with its reliance on columnar cactus and restricted range are resulting in popula

Conservation Actions [top]

Conservation Actions:	Need further research. Does not occut in National Parks.

Conservation Actions:

Need further research. Does not occut in National Parks.

Citation:	Soriano, P. & Molinari, J. 2008. Rhogeessa minutilla. In: IUCN 2009. IUCN Red List of Threatened Species. Version 2009.2. <www.iucnredlist.org>. Downloaded on 09 February 2010.
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