Molossus sinaloae

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	MAMMALIA	CHIROPTERA	MOLOSSIDAE

Scientific Name:

Molossus sinaloae

Species Authority

Infra-specific Authority:

J.A. Allen, 1906

Common Name/s:

English

–

Sinaloan Mastiff Bat

Assessment Information [top]

Red List Category & Criteria:

Least Concern ver 3.1

Year Assessed:

2008

Assessor/s

Miller, B., Reid, F., Arroyo-Cabrales, J., Cuarón, A.D. & de Grammont, P.C.

Evaluator/s:

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

Justification:
This species is listed as Least Concern in because of its wide distribution, presumed large population, occurrence in a number of protected areas, tolerance to some degree of habitat modification, and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.

History:

1996

–

Lower Risk/least concern (Baillie and Groombridge 1996)

Geographic Range [top]

Range Description:	This species occurs from Sinaloa and Michoacan (Mexico) to Colombia, Guyana, Surinam, and French Guiana; Trinidad (Simmons, 2005). It occurs in lowlands to 2,400 m (usually below 1,000 m).
Countries:	Native: Belize; Colombia; Costa Rica; El Salvador; French Guiana; Guatemala; Guyana; Honduras; Mexico; Nicaragua; Panama; Suriname; Trinidad and Tobago

Population [top]

Population:	This bat is uncommon to locally common (Reid, 1997). Need acoustic survey, not as abuntant as M. rufus (Miller pers. comm.)
Population Trend:	Stable

Habitat and Ecology [top]

Habitat and Ecology:	Aerial insectivore. This species can be found in evergreen and dry deciduous forest, pasture, and populated areas (Reid, 1997). It roosts in caves and houses, often in large groups. In Costa Rica, 76 individuals were captured from a single roost (Timm et al., 1989). A long-term study in Yucatan, Mexico, found this species to be the most commonly encountered molossid in the region (Bowles et al. 1990). Individuals are most active during the first 2 hours after sunset and again before dawn. The diet consists mainly of moths, with some beetles and other insects taken. In Yucatan, pregnant females have been recorded from March to June (Reid, 1997). A large colony in Puerto Viejo contained at least some pregnant females in most months of the year round reproduction. However, a far large percentage were pregnant in May than in later months. (LaVal and Rodriguez-H., 2002). May be found in rural and urban areas.
Systems:	Terrestrial

Habitat and Ecology:

Aerial insectivore. This species can be found in evergreen and dry deciduous forest, pasture, and populated areas (Reid, 1997). It roosts in caves and houses, often in large groups. In Costa Rica, 76 individuals were captured from a single roost (Timm et al., 1989). A long-term study in Yucatan, Mexico, found this species to be the most commonly encountered molossid in the region (Bowles et al. 1990). Individuals are most active during the first 2 hours after sunset and again before dawn. The diet consists mainly of moths, with some beetles and other insects taken. In Yucatan, pregnant females have been recorded from March to June (Reid, 1997). A large colony in Puerto Viejo contained at least some pregnant females in most months of the year round reproduction. However, a far large percentage were pregnant in May than in later months. (LaVal and Rodriguez-H., 2002). May be found in rural and urban areas.

Systems:

Terrestrial

Threats [top]

Major Threat(s):	Not known.

Major Threat(s):

Not known.

Conservation Actions [top]

Conservation Actions:	Found in protected areas. Research actions.

Conservation Actions:

Found in protected areas. Research actions.

Citation:	IUCN 2008. 2008 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 11 October 2008.
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