Like other fruit bats, R. amplexicaudatus has sensitive hearing and sense of smell and good eyesight which helps it to manoeuvre well during flight, specifically at night. What makes it different from other fruit bats is its echolocating ability. It can be distinguished by its grey-brown to brown upperpart which is darker on top of the head and paler underpart which is usually grey-brown.[2] It has long pale hairs on the chin and neck despite having short and sparse fur.[2] It sometimes has pale yellow tufts of hair on the side of its neck which occur in adult for this species, especially males.[2] Most males are substantially larger than females. The most distinguishable figure of this bat besides producing a distinctive, audible clicking call is its wings.[2] It is attached to the sides of the back and separated by a broad band of fur.[2] The lower incisors are bifid, the canines have a longitudinal groove on the outer surface which is slightly medial to center, and the first premolars are smaller than second premolars, especially on the upper jaw.[3]
The Sabah Museum specimens had forearm length measurements between 82 and 876 millimetres (3.2 and 34.5 in) for the females and an adult male from Sarawak had forearms 81 millimetres (3.2 in) long. The external measurements are within the range of 78 to 87 millimetres (3.1 to 3.4 in) recorded in previous studies.
Biology and ecologyedit
Specimens in the Sabah Museum were collected from coconut plantations on Mantani Island and the highland of Crocker Range, while the one from Sarawak was from Niah Cave. This medium-sized bat normally roosts in caves, and feeds on fruit, nectar, and pollen.[4] It roosts dark caves, rock crevices and old tombs.[5]
^. National Geographic. Archived from the original on April 7, 2011.
External linksedit
IUCN Red List
Rousettus on Animal Diversity Web
December 14, 2023
geoffroy, rousette, rousettus, amplexicaudatus, species, megabat, world, fruit, bats, species, genus, rousettus, conservation, statusleast, concern, iucn, scientific, classificationdomain, eukaryotakingdom, animaliaphylum, chordataclass, mammaliaorder, chiropt. Geoffroy s rousette Rousettus amplexicaudatus is a species of megabat or Old World fruit bats It is one of ten species in the genus Rousettus Geoffroy s rousetteConservation statusLeast Concern IUCN 3 1 1 Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass MammaliaOrder ChiropteraFamily PteropodidaeGenus RousettusSpecies R amplexicaudatusBinomial nameRousettus amplexicaudatusE Geoffroy 1810Geoffroy s Rousette range Contents 1 Distribution 2 Description 3 Biology and ecology 4 References 5 External linksDistribution editGeoffroy s rousette occurs throughout Southeast Asia and in the Malesia region of Oceania in Myanmar Thailand Cambodia Laos Vietnam Singapore Indonesia the island of Borneo East Timor the Philippines the Solomon Islands Bismarck Archipelago and Papua New Guinea Description editLike other fruit bats R amplexicaudatus has sensitive hearing and sense of smell and good eyesight which helps it to manoeuvre well during flight specifically at night What makes it different from other fruit bats is its echolocating ability It can be distinguished by its grey brown to brown upperpart which is darker on top of the head and paler underpart which is usually grey brown 2 It has long pale hairs on the chin and neck despite having short and sparse fur 2 It sometimes has pale yellow tufts of hair on the side of its neck which occur in adult for this species especially males 2 Most males are substantially larger than females The most distinguishable figure of this bat besides producing a distinctive audible clicking call is its wings 2 It is attached to the sides of the back and separated by a broad band of fur 2 The lower incisors are bifid the canines have a longitudinal groove on the outer surface which is slightly medial to center and the first premolars are smaller than second premolars especially on the upper jaw 3 The Sabah Museum specimens had forearm length measurements between 82 and 876 millimetres 3 2 and 34 5 in for the females and an adult male from Sarawak had forearms 81 millimetres 3 2 in long The external measurements are within the range of 78 to 87 millimetres 3 1 to 3 4 in recorded in previous studies Biology and ecology editSpecimens in the Sabah Museum were collected from coconut plantations on Mantani Island and the highland of Crocker Range while the one from Sarawak was from Niah Cave This medium sized bat normally roosts in caves and feeds on fruit nectar and pollen 4 It roosts dark caves rock crevices and old tombs 5 The Monfort Bat Cave in the southern Philippines has the largest gathering of these bats 6 References edit Waldien D L Wilson Z Adleson S Abdul Aziz S Bates P J J Bumrungsri S Furey N Ingle N R Mildenstein T Phelps K Tanalgo K Soisook P Thong V D Wiantoro S Tsang S M 2019 Rousettus amplexicaudatus IUCN Red List of Threatened Species 2019 e T19754A22001514 doi 10 2305 IUCN UK 2019 3 RLTS T19754A22001514 en Retrieved 19 November 2021 a b c d e Payne J amp Francis C M 1985 A Field Guide to the Mammals of Borneo Sabah Society Malaysia p 171 Bonaccorso F J 1998 Bats of Papua New Guinea Washington D C Conservation International pp 151 155 Payne et al 1985 Lekagul and McNeely 1977 Escape from the Bat Cave National Geographic Archived from the original on April 7 2011 External links editIUCN Red List Rousettus on Animal Diversity Web Retrieved from https en wikipedia org w index php title Geoffroy 27s rousette amp oldid 1186569137, wikipedia, wiki, book, books, library,
