Spix's Disk-Winged Bat - Thyroptera tricolor
( Spix, 1823 )

 

 

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Subspecies: Unknown
Est. World Population:

CITES Status: NOT LISTED
IUCN Status: Least Concern
U.S. ESA Status: NOT LISTED

Body Length:
Tail Length:
Shoulder Height:
Weight:

Top Speed:
Jumping Ability: (Horizontal)

Life Span: in the Wild
Life Span: in Captivity

Sexual Maturity: (Females)
Sexual Maturity: (Males)
Litter Size:
Gestation Period:

Habitat:
This species is found in lowland forests and foothills of the Andes on both sides. It also occurs in Atlantic and Amazonia forests. In Venezuela occurs in swamp palm forests across savannahs (Ochoa pers. comm.). It is strongly associated with moist habitats, especially evergreen forest and tall second growth. Not found in areas with a prolonged dry season. This species is an aerial insectivore. Their specialized roosting habitats are inside young, rolled up leaves of Heliconia, Calathea, and banana, which may limit colony size. Suitable leaves are in the form of vertical tubes with openings of 50 to 100 mm diameter, located in shady areas and not in direct contact with other vegetation. Such leaves unroll rapidly and are usually only used as roosts for one day. The suction disks allow them to cling to the smooth surface of leaves. This species is seldom caught in mist nets, even in areas where it is known to be common and its roost sites are abundant, due to its agile and highly manoeuvrable flight. Unlike most species, this bat roosts upright, and individuals line up one above another inside the leaf. Tree falls, stream banks, and other small, natural forest gaps provide good conditions for host plants and bats. Stable groups with approximately equal numbers of males and females occupy fixed territories (Wilson and Findley 1977). The diet is presumed to consist of small insects caught in flight (Reid 1997).

Range:
The species occurs from Veracruz (Mexico) to Guianas, Brazil, Bolivia, and Peru; Trinidad (Simmons 2005). In Venezuela the species occurs in lowlands, moistly below 850 m elevation (Handley 1976). Occurs in lowlands to 1,300 m on both sides of the Andes (Ecuador) and up to 1,800 m in Colombia. The species does not occur in Nicaragua and El Salvador.

Conservation:
This species occurs in protected areas. In Mexico it is listed as subject to special protection under NOM - 059 - SEMARNAT - 2001 (Arroyo-Cabrales pers. comm.). This species should be reviewed following taxonomic clarification.

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