Species Profile
Environmental Conservation Online System

Mariana Fruit Bat (Pteropus mariannus mariannus)

Kingdom: Animalia
Class: Mammalia
Order: Chiroptera
Family: Pteropodidae

Listing Status:   

General Information

The Mariana fruit bat is a medium-sized fruit bat in the family Pteropididae that weighs 0.66 to 1.15 pounds (330 to 577 grams) and has a forearm length ranging from 5.3 to 6.1 in (13.4 to 15.6 cm); males are slightly larger than females. The underside (abdomen) is colored black to brown, with gray hair interspersed, creating a grizzled appearance. The shoulders (mantle) and sides of the neck are usually bright golden brown, but may be paler in some individuals. The head varies from brown to dark brown. The well-formed and rounded ears and large eyes give the face a canine appearance; members of the family Pteropodidae often are referred to as flying foxes.

Lead Region:  Pacific Region (Region 1)
Date Listed: Aug 27, 1984
Where Listed: entire range

  • States/US Territories in which the Mariana Fruit Bat, entire is known to occur:  Guam , Northern Mariana Islands

» Federal Register Documents

Most Recent Federal Register Documents (Showing 5 of 24 : view all)
Date Citation Page Title
08/17/2005 70 FR 48433 Endangered and Threatened Wildlife and Plants; Initiation of 5-Year Reviews of the Mariana Fruit Bat (Pteropus mariannus mariannus), etc.; Correction
07/06/2005 70 FR 38972 38975 Initiation of 5-Year Reviews of the Mariana Fruit Bat (Pteropus mariannus mariannus), Mariana Crow (Corvus hawaiiensis), Laysan Duck (Anas laysanensis), Kauai Akialoa (Honeycreeper) (Hemignathus procerus), Large Kauai Thrush (Myadestes myadestinus), Kauai Oo (Honeyeater) (Moho braccatus), Ou (Honeycreeper) (Psittirostra psittace), Molokai Creeper (Paroreomyza flammea), Molokai Thrush (Myadestes lanaiensis rutha), Kauai Cave Wolf Spider (Adelocosa anops) Kauai Cave Amphipod (Spelaeorchestia koloana), Alsinidendron obovatum (No Common Name), Amaranthus brownii (No Common Name), Chamaesyce celastroides var. kaenana (Akoko), Chamaesyce deppeana (Akoko), Chamaesyce herbstii (Akoko), Chamaesyce skottsbergii var. kalaeloana (Ewa Plains Akoko), Clermontia pyrularia (Oha Wai), Cyanea grimesiana ssp. obatae (No Common Name), Cyanea pinnatifida (Haha), Cyanea st.-johnii (Haha), Cyanea superba (Haha), Cyanea truncata (Haha), Cyrtandra dentate (Haiwale), Gouania vitifolia (No Common Name), Hedyotis degeneri (No Common Name), Hibiscadelphus woodii (Hau Kuahiwi), Castilleja levisecta (Golden paintbrush), Fender's Blue Butterfly (Icaricia icarioides fenderi), Erigeron decumbens var. decumbens (Willamette Daisy), Lupinus sulphureus ssp. kincaidii (Kincaid's Lupine), Lomatium bradshawii (Bradshaw's Desert Parsley), and Sidalcea nelsoniana (Nelson's Checker-mallow)
01/06/2005 70 FR 1190 1210 Endangered and Threatened Wildlife and Plants; Mariana Fruit Bat (Pteropus mariannus mariannus): Reclassification From Endangered to Threatened in the Territory of Guam and Listing as Threatened in the Commonwealth of the Northern Mariana Islands
10/28/2004 69 FR 629446 Endangered and threatened wildlife and plants; designation of critical habitat for the mariana fruit bat and guam micronesian kingfisher on guam and the mariana crow on guam and in the commeonwealth of the northern mariana islands; final rule
06/02/2004 69 FR 31073 31074 Endangered and threatened wildlife and plants; determinations of prudency ofcritical habitat designation for two mammal and four bird species in Guam and the Commonwealth of the Northern Mariana Islands; designations of critical habitat for one mammal and two bird species in guam and the commonwealth of the Northern Mariana Islands; proposed rule; reopening of comment period, notice of availablity

» Recovery

Recovery Plan Information Search
Current Recovery Plan(s)
Date Title Plan Action Status Plan Status
11/02/1990 Guam Mariana Fruit Bat and Little Mariana Fruit Bat Recovery Plan View Implementation Progress Final
Other Recovery Documents (Showing 2 of 2 )
Date Citation Page Title Document Type
07/06/2005 70 FR 38972 38975 Initiation of 5-Year Reviews of the Mariana Fruit Bat (Pteropus mariannus mariannus), Mariana Crow (Corvus hawaiiensis), Laysan Duck (Anas laysanensis), Kauai Akialoa (Honeycreeper) (Hemignathus procerus), Large Kauai Thrush (Myadestes myadestinus), Kauai Oo (Honeyeater) (Moho braccatus), Ou (Honeycreeper) (Psittirostra psittace), Molokai Creeper (Paroreomyza flammea), Molokai Thrush (Myadestes lanaiensis rutha), Kauai Cave Wolf Spider (Adelocosa anops) Kauai Cave Amphipod (Spelaeorchestia koloana), Alsinidendron obovatum (No Common Name), Amaranthus brownii (No Common Name), Chamaesyce celastroides var. kaenana (Akoko), Chamaesyce deppeana (Akoko), Chamaesyce herbstii (Akoko), Chamaesyce skottsbergii var. kalaeloana (Ewa Plains Akoko), Clermontia pyrularia (Oha Wai), Cyanea grimesiana ssp. obatae (No Common Name), Cyanea pinnatifida (Haha), Cyanea st.-johnii (Haha), Cyanea superba (Haha), Cyanea truncata (Haha), Cyrtandra dentate (Haiwale), Gouania vitifolia (No Common Name), Hedyotis degeneri (No Common Name), Hibiscadelphus woodii (Hau Kuahiwi), Castilleja levisecta (Golden paintbrush), Fender's Blue Butterfly (Icaricia icarioides fenderi), Erigeron decumbens var. decumbens (Willamette Daisy), Lupinus sulphureus ssp. kincaidii (Kincaid's Lupine), Lomatium bradshawii (Bradshaw's Desert Parsley), and Sidalcea nelsoniana (Nelson's Checker-mallow)
  • Notice 5-year Review
    • 12/05/2002 67 FR 72407 72408 Endangered and threatened wildlife and plants; determinations of prudency for two mammal and four bird species in Guam and the Commonwealth of the nothern Mariana Islands and designations of critical habitat for one mammal and two bird species
  • Notice Doc. Availability
    • Five Year Review
    Date Title
    09/04/2007 Mariana Fruit Bat completed 5-yr review

    » Critical Habitat

    Current Critical Habitat Documents (Showing 3 of 3 )
    Date Citation Page Title Document Type Status
    10/28/2004 69 FR 629446 Endangered and threatened wildlife and plants; designation of critical habitat for the mariana fruit bat and guam micronesian kingfisher on guam and the mariana crow on guam and in the commeonwealth of the northern mariana islands; final rule Final Rule Active
    10/15/2002 67 FR 63737 63772 Endangered and Threatened Wildlife and Plants; Determinations of Prudency for Two Mammal and Four Bird Species in Guam and the Commonwealth of the Northern Mariana Islands and Proposed Designations of Critical Habitat for One Mammal and Two Birds Species Proposed Rule Not Required
    06/14/1991 56 FR 27485 27493 ETWP:Proposed Designation of Critical Habitat for the Little Mariana fruit bat, Mariana Fruit Bat, Guam Broadbill, Mariana Crow, Guam Micronesian King fisher, and Guam Bridled White-Eye; Proposed Rule Not Required

    To learn more about critical habitat please see http://criticalhabitat.fws.gov

    » Conservation Plans

    No conservation plans have been created for Mariana Fruit Bat, entire

    » Petitions

    Most Recent Petition Findings (Showing 2 of 2 )
    Date Citation Page Title Finding
    04/25/1990 55 FR 17475 17476 ETWP; Annual Description of Progress on Listing Actions and Findings on Recycled Petitions; 55 FR 17475 17476
  • Notice 12 month petition finding, Warranted but precluded
    • 01/21/1987 52 FR 2239 2242 Findings on Petitions & Initiation of Status Reviews; 52 FR 2239-2242
  • Notice 90-day Petition Finding, Substantial

    • » Life History

    No Life History information has been entered into this system for this species.

    » Other Resources

    NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

    ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

    Last updated: November 22, 2009