Black-bellied fruit bat
{{Short description|Species of bat}}
{{Use dmy dates|date=June 2020}}
{{Speciesbox
| name = Black-bellied fruit bat
| image =MelonycterisMelanopsSmit.jpg
| status = LC| status_system = IUCN3.1
| genus = Melonycteris
| species = melanops
| authority = Dobson, 1877
| synonyms =
| range_map = Black-bellied Fruit Bat area.png
| range_map_caption = Black-bellied fruit bat range
}}
The black-bellied fruit bat (Melonycteris melanops) is a species of order bat in the family Pteropodidae.
Ecology
Black-bellied fruit bats are endemic to the subtropical or tropical Bismarck Archipelago of Papua New Guinea.{{cite journal|last1=BONACCORSO|first1=FRANK J.|title=Home Range, Territoriality, and Flight Time Budgets in the Black-Bellied Fruit Bat, Melonycteris Melanops (Pteropodidae)|journal=Journal of Mammalogy|date=October 2005|volume=86|issue=5|pages=931–936|doi=10.1644/1545-1542(2005)86[931:HRTAFT]2.0.CO;2|doi-access=free}}{{cite journal|last1=Bonaccorsp|first1=Frank|title=Plasticity of Energetics in Blossom Bats (Pteropodidae): Impact on Distribution|journal=Journal of Mammalogy|date=November 1997|volume=78|issue=4|pages=1073–1088|doi=10.2307/1383050|jstor=1383050|doi-access=free}} They range from sea level up to 1,600 m. Adult bats maintain a home range between 0.5 and 9.2 ha, and a core feeding area of 1 to 9 trees with active florescence. These bats enjoy the rare advantage of thriving in the changes that humans have brought to its habitat. Most of these bats now live and eat in the banana trees of the privately owned traditional gardens and the cocoa plantations.
Black-bellied fruit bats feed on the fruit and nectar of giant native bananas and cocoa.{{cite journal|last1=Giannini|first1=Norberto|title=A phylogenyof megechiropteran bats (Mammalia: Chiroptera: Pteropodidae) based on direct optimization analysis of one nuclear and four mitochondrial genes|journal=Cladistics|date=September 2003|volume=19|issue=6|pages=496–511|doi=10.1016/j.cladistics.2003.09.002}} They collect nectar by rapidly pumping their long tongues into the flowers.
Description
Black-bellied fruit bats can weigh up to {{convert|63|g}}, average {{convert|94|mm}} in length and have an average forelimb measurement of {{convert|60|mm}}.{{cite web|last1=Jones|first1=Kate|title=Ecological Archives|url=http://esapubs.org/archive/ecol/E090/184/|access-date=17 November 2016}} They have a unique countershading pattern of a black underside and burnt orange backs.
Behavior
Both males and females are resource defenders and strictly control their home range. The only crossover in home ranges is between consort pairs. Adults of the same gender are never allowed to invade a home range. Black-bellied bats spend less than 36% of their time flying while actively foraging. By feeding at the source instead of carrying fruit back to their roost they are able to spend less time flying then other fruit bats. Mean flight time of individual flights ranges from 20.8 to 30.7 seconds, with up to 99 flights in 2 hours.
During the day, this flying fox usually roosts among dry banana leaves, a perfect camouflage given its burnt orange and black fur pattern. They roost alone, primarily within 100 m of their core-use feeding area, except for sub-adult bats who roost more than 400 m from their most frequented foraging grounds. Sub-adult bats often have not established a territory yet and have to wait for a home range to become available or fight to claim one.
Physiology
Black-bellied fruit bats are endothermic but are poor thermoregulators. Ambient temperature plays a role in determining their body temperature. They are thermally neutral from {{convert|28|to|33|Celsius}}, from {{convert|28|to|16|Celsius}} the bats' body temperature drops about 3 degrees and oxygen consumption increases by 2 cm^3/(g.hr). They have a basal rate metabolism of only 74% of what is expected for a mammal of its size.
Black-bellied fruit bats may enter torpor below {{convert|20|Celsius}}, but the percentage is small.
Phylogeny
The black-bellied fruit bat is most closely related to Fardoulis's blossom bat, and then to the long-tongued nectar bat and the common blossom bat.{{cite thesis|last1=HAIDUK|first1=MICHAEL|title=EVOLUTION IN THE FAMILY PTEROPODIDAE (CHIROPTERA: MEGACHIROPTERA) AS INDICATED BY CHROMOSOMAL AND IMMUNOELECTROPHORETIC ANALYSES|date=August 1983|degree=PhD|publisher=Texas Tech University}}{{cite journal|last1=Giannini|first1=Norberto|title=Element Homology and the Evolution of Dental Formulae in Megachiropteran Bats (Mammalia: Chiroptera: Pteropodidae)|journal=American Museum Novitates|date=March 2007|issue=3559|page=1|doi=10.1206/0003-0082(2007)3559[1:EHATEO]2.0.CO;2|hdl=11336/83183|s2cid=62823404 |hdl-access=free}} The black-bellied back has been shown through research to be "strongly indicated as sister taxon to all other megachiropterans" and to be a primitive form of the Pteropodidae.
Notes
{{Reflist}}
References
{{Pteropodidae|M.}}
{{Taxonbar|from=Q607857}}
{{DEFAULTSORT:Black-Bellied Fruit Bat}}
Category:Endemic fauna of Papua New Guinea
Category:Mammals of Papua New Guinea
Category:Taxonomy articles created by Polbot