Rhynchonycteris naso

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	EMBALLONURIDAE

Scientific Name:

Rhynchonycteris naso

Species Authority:

(Wied-Neuwied, 1820)

Common Name/s:

English

–

Proboscis Bat

Taxonomic Notes:

The genus is monotypic.

Assessment Information [top]

Red List Category & Criteria:	Least Concern ver 3.1
Year Published:	2008
Assessor/s:	Lim, B. & Miller, B.
Reviewer/s:	Medellín, R. (Chiroptera Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
Contributor/s:
Justification: This species is listed as Least Concern because, although it is widely distributed, common in areas with water and suitable habitat and unlikely to be declining at a rate which would qualify the species for inclusion in one of the threat categories in the near future.

Geographic Range [top]

Range Description:	This species ranges from Oaxaca and Veracruz, Mexico, to central and eastern Brazil, Peru, Bolivia, Guianas, Surinam and Trinidad (Simmons 2005). It is widely distributed at low elevations, generally below 500 m (Eisenberg 1989) but up to 1,500 m.
Countries:	Native: Belize; Bolivia, Plurinational States of; Brazil; Colombia; Costa Rica; Ecuador; El Salvador; French Guiana; Guatemala; Guyana; Honduras; Mexico; Nicaragua; Panama; Peru; Suriname; Trinidad and Tobago; Venezuela
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	These bats are often common in lowland forest near water (streams, rivers, mangroves, and lakes) (Reid 1997); widespread (Emmons and Feer 1997). Colonies vary from a few individuals to 100 individuals (Dalquest 1957).
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	It is almost always associated with moist areas near multistratal evergreen forests. These bats tend to roost in small, single-species colonies of about ten to twenty-four, on tree trunks, in tree cavities, or in rock caves (Eisenberg 1989). When roosting they are often aligned in vertical rows with individuals about 10 mm apart. Several males occur in a roosting group, and there appears to be no harem formation or defense. These bats are aerial insectivores (Husson 1978; Goodwin and Greenhall 1961); and they tend to feed over water, flying only a short distance above the surface (Eisenberg 1989). In Mexico they have been also reported for secondary forests, crop-lands and grasslands (de Grammont pers. comm.)
Systems:	Terrestrial

Habitat and Ecology:

It is almost always associated with moist areas near multistratal evergreen forests. These bats tend to roost in small, single-species colonies of about ten to twenty-four, on tree trunks, in tree cavities, or in rock caves (Eisenberg 1989). When roosting they are often aligned in vertical rows with individuals about 10 mm apart. Several males occur in a roosting group, and there appears to be no harem formation or defense. These bats are aerial insectivores (Husson 1978; Goodwin and Greenhall 1961); and they tend to feed over water, flying only a short distance above the surface (Eisenberg 1989). In Mexico they have been also reported for secondary forests, crop-lands and grasslands (de Grammont pers. comm.)

Systems:

Terrestrial

Threats [top]

Major Threat(s):	There are no major threats to this species. May be some water issues.

Major Threat(s):

There are no major threats to this species. May be some water issues.

Conservation Actions [top]

Conservation Actions:	This species occurs in protected areas. It is widely distributed throughout the Neotropics. In Mexico it is listed as subject to special protection under NOM - 059 - SEMARNAT - 2001 (Arroyo-Cabrales pers. comm.).

Conservation Actions:

This species occurs in protected areas. It is widely distributed throughout the Neotropics. In Mexico it is listed as subject to special protection under NOM - 059 - SEMARNAT - 2001 (Arroyo-Cabrales pers. comm.).

Citation:	Lim, B. & Miller, B. 2008. Rhynchonycteris naso. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 25 May 2013.
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