Geoffroy's Rousette
Rousettus amplexicaudatus (E.Geoffroy, 1810)
Also calledCecadu Besar (msa) · Geoffroy-Flughund (deu) · Geoffroys Flughund (deu) · Rossetto di Geoffroy (ita) · Roussette de Geoffroy (fra) · Rudawiec sundajski (pol) · kaloň ovíjivý (ces) · uuden-guineanronkko (fin) · Цепкохвостая летучая собака (rus) · روزيتا جيوفروي (ara) · ค้างคาวบัวฟันกลม (tha) · ジョフロワルーセットオオコウモリ (jpn) · ジョフロワールーセットオオコウモリ (jpn)
First described in: Ann. Mus. Natn. Hist. Nat. Paris vol.15 p.96
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.
Descriptions from checklists and floras indexed by GBIF
biology_ecology
Habitat Two-hundred seventy-nine bats were caught using bat nets at 1 and 3 m above the ground in moss forest, submontana forest, lowland forest, casuarine forest, shrub and grassland in rainy and dry seasons.
Morphological Variations and New Species Description of Genus Rousettus; Bat from Gunung Duasudara Sanctuary, North Sulawesi, Indonesia
description
Description All bats were described directly in the sanctuary of Gunung Duasudara. R. amplexicaudatus specimen was compared with R. celebensis and R. tangkokoensis n. sp. (Fig. 1). Pelage The color of shoulder pelage was greyish brown to brown, chest to belly was slightly bright grey brown, neck was gery brown with yellow hair bundle on both neck sides, top of head was slightly dark grey brown. There was no dense hair up to around the thigh, the wing is hairy and no wing attached onto shoulder side. External Body R. amplexicaudatus bats possessed longer SV, FL, TIB and TAIL than R. celebensis and R. tangkokoensis n. sp.; meanwhile the FA, HF and EAR are bigger than those of R. celebensis but smaller than those of R. tangkokoensis n. sp. Skull R. amplexicaudatus had longer GSL, BL, LIW and POW than those in R. celebensis and R. tangkokoensis n. sp.; meanwhile the ZB, BCW, MSF, PL, CBL and CCL are bigger than those in R. tangkokoensis n. sp. but smaller than those in R. celebensis. Teeth and Dentary R. amplexicaudatus specimen had longer M 3 M 3, M 3 M 3 and RAP than R. celebensis and R. tangkokoensis n. sp.; the C 1 M 3, C 1 M 3, C 1 C 1, C 1 C 1 and DL are also bigger than those in
Morphological Variations and New Species Description of Genus Rousettus; Bat from Gunung Duasudara Sanctuary, North Sulawesi, Indonesia
diagnosis
Diagnosis R. amplexicaudatus has bigger size than average of R. tangkokoensis n. sp. but smaller than the average of R. celebensis for all characters, including POW, FA, HF and EAR (Table 1).
Morphological Variations and New Species Description of Genus Rousettus; Bat from Gunung Duasudara Sanctuary, North Sulawesi, Indonesia
distribution
Distribution The specimens were found in Gunung Duasudara Sanctuary, North Sulawesi, Indonesia.
Morphological Variations and New Species Description of Genus Rousettus; Bat from Gunung Duasudara Sanctuary, North Sulawesi, Indonesia
From Wikipedia (CC BY-SA), quoted section by section
Description
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. It has long pale hairs on the chin and neck despite having short and sparse fur. It sometimes has pale yellow tufts of hair on the side of its neck which occur in adult for this species, especially males. Most males are substantially larger than females. The most distinguishable figure of this bat besides producing a distinctive, audible clicking call is its wings. It is attached to the sides of the back and separated by a broad band of fur. 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. 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.
Range & habitat
Geoffroy'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, Timor-Leste, the Philippines, the Solomon Islands, Bismarck Archipelago, and Papua New Guinea.
What it does
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. It roosts dark caves, rock crevices and old tombs. The Monfort Bat Cave in the southern Philippines has the largest gathering of these bats.
In the stacks
Searching the stacks…
Every page naming Rousettus amplexicaudatus in the Biodiversity Heritage Library →
From the GBIF Backbone Taxonomy and occurrence records (GBIF.org), with Wikipedia and the Source Library. GBIF species 2432948.