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Home -> Kingdom Animalia -> Phylum Chordata -> Subphylum Vertebrata -> Class Mammalia -> Order Chiroptera -> Family Emballonuridae -> Subfamily Emballonurinae -> Species Rhynchonycteris naso

Rhynchonycteris naso
proboscis bat



2009/11/08 05:01:45.488 US/Eastern

By Anna Bess Sorin

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Mammalia
Order: Chiroptera
Family: Emballonuridae
Subfamily: Emballonurinae
Genus: Rhynchonycteris
Species: Rhynchonycteris naso

Geographic Range

Found from southeastern Mexico through Central America to northern half of South America.

Biogeographic Regions:
neotropical (native ).

Habitat

These bats live in tropical woodlands that are stable, nonseasonal habitats. Frequently found in forests, pastures and swamps, all near water.

Terrestrial Biomes:
rainforest .

Physical Description

They are 56.5-59.2mm in length, with a forearm length of 35-41mm. These little bats have soft, dense brownish-grey fur with two white stripes on the back and rump. The ventral surface is lighter. The wing is furred dorsally. They have an elongate muzzle, and the calcar is longer than the tibea. A pregnant female was found to weigh 6.0g, almost twice the normal body weight.

Some key physical features:
endothermic ; bilateral symmetry .

Reproduction

There is no breeding season, and stable year round harems are formed. One young is born. Both sexes disperse after weaning at around 2-4 months.

Key reproductive features:
gonochoric/gonochoristic/dioecious (sexes separate); sexual .

Behavior

Stable harems are formed of one dominant male, several females and their offspring, and subadults of both sexes. Colonies of up to 45 individuals have been found, and within the colony reproductive and non reproductive females roost separately. Members of this species roost near slow moving water in bark, roots, trees, under bridges, and under curled dried leaves. They exhibit communal grooming.

Key behaviors:
motile .

Food Habits

This bat feeds exclusively on insects. It often hunts over water, beginning its foraging bouts at dusk. Males defend a feeding range with pregnant females on the inside and young males and non pregnant females on the outskirts.

Economic Importance for Humans: Negative

Eat insects that could pollinate crops and gathered foods.

Economic Importance for Humans: Positive

Eat insects that could be pests.

Other Comments

These bats have no frequency modulation in their sonar, only harmonic components. Hawks, falcons, and egrets are predators.

For More Information

Find Rhynchonycteris naso information at

Contributors

Anna Bess Sorin (author), University of Michigan.

References

Plumpton, D.L.,and J. KnoxJones Jr. 1992. Rhynchonycteris naso. Mammalian Species. No. 413. pp1-5. American Society of Mammalogists.

2009/11/08 05:01:46.193 US/Eastern

To cite this page: Sorin, A. 1999. "Rhynchonycteris naso" (On-line), Animal Diversity Web. Accessed November 10, 2009 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Rhynchonycteris_naso.html.

Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

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