Bats of the Sangkulirang limestone karst formations, East Kalimantan - a priority region for Bornean bat conservation Author Suyanto, Agustinus Museum Zoologicum Bogoriense, Widyasatwaloka Building, Jl. Raya Bogor Km 46, Cibinong 16911, Indonesia Author Struebig, Matthew J. School of Biological and Chemical Sciences, Queen Mary, University of London, London, E 1 4 NS, United Kingdom & Corresponding author: E-mail: m. struebig @ qmul. ac. uk m.struebig@qmul.ac.uk text Acta Chiropterologica 2007 2007-04-01 9 1 67 95 journal article 21493 10.3161/1733-5329(2007)9[67:botslk]2.0.co;2 d40d94a8-75f5-486c-a377-6c1c7ba067dc 1733-5329 3944605 Cynopterus horsfieldii Gray, 1843 Horsfield’s fruit bat New material 1♂ ( MZB M26857 ). Records from Borneo Sabah : Gomantong, Gunung Kinabalu, Sungai Inarad, Kota Marudu, Trus Madi (Yasuma and Andau, 2000). Sarawak : Ta- puh (Yasuma and Andau, 2000); Bau limestone formations (Mohd-Azlan et al ., 2005); Gunung Pendrisen (Jayaraj et al ., 2006). WestKal: Gunung Palung NP ( Bhudel, 1996 ); EastKal: Bukit Soeharto ( Yasuma, 1994 ). Comments Small groups (2–6 individuals) of this species were seen roosting near the TABLE 3. External measurements and species presence at each of the karst formations of the 35 confirmed bat species captured during the survey. Numbers in parentheses indicate the number of individuals from which measurements were taken. 1 — the conservation status of the species is listed as Lower Risk: Near Threatened (IUCN, 2004)
Capture Family frequency at Sangkulirang Presence at karst formation Forearm length Body mass n Tabalar Baai Marang Tintang (mm) (g) Tibia length (mm) Tail length (mm) Ear length (mm)
Balionycteris maculata Infrequent Chironax melanocephalus Infrequent Cynopterus horsfieldii Infrequent C. brachyotis Infrequent Eonycteris spelaea Infrequent Rousettus amplexicaudatus Infrequent * * * * * * * * * Pteropodidae 2♂♂ 41.5–45.0 1♀ 45.0 1♀ 47.2 2♂♂ 72.7–74.1 1♀ 75.5 2♂♂ 56.5–57.7 2♀♀ 59.4–60.1 4♂♂ 61.4–66.9 1♀♀ 75.2 12.0–15.0 15.0 18.0 49.5–58.5 60.0 29.0–30.0 35.0–36.0 33.0–42.0 59.0 15.2 15.2 17.4 27.4–28.0 30.1 20.3–21.0 21.0–23.0 24.6–30.5 31.1 0 0 11.0–12.0 13.0 10.2 12.5–13.0 12.7–15.0 15.0 11.0 11.0 12.0 18.0–19.0 – 14.0–15.8 16.0 9.3–10.0 18.5
Emballonura alecto Moderate * * * * Emballonuridae 2♂♂ 43.7–45.9 1♀ 47.1 5.0 5.2 15.3–16.8 18.10 12.0 – 12.0 –
Hipposideros ater H. bicolor H. cervinus H. cineraceus H. diadema H. dyacorum H. galeritus H. larvatus Infrequent Infrequent Common Infrequent Infrequent Moderate Infrequent Common * * * * * * * * * * * * * * * * * * * * * Hipposideridae 1♂ 42.0 2♀♀ 41.3–43.0 5♂♂ 45.5–46.9 4♀♀ 46.1–47.8 55♂♂ 42.2–49.0 30♀♀ 43.2–48.6 8♂♂ 35.3–38.3 6♀♀ 35.6–38.8 2♂♂ 87.4–87.5 4♀♀ 84.6–87.0 22♂♂ 38.7–41.3 2♀♀ 41.2–42.5 5♂♂ 45.2–46.9 5♀♀ 46.5–49.5 15♂♂ 59.4–66.1 14♀♀ 61.1–66.6 6.5 6.0 7.0–8.5 6.0–8.0 6.0–10.0 5.0–9.0 3.0–4.5 4.0–4.5 44.5–45.5 39.0–43.0 4.0–5.8 5.0–5.3 6.0–7.0 6.0–7.5 15.0–24.5 16.0–22.5 16.8 15.4–16.2 20.0–22.0 21.0–21.4 (3) 15.5–20.0 (24) 19.0 (18) 14.3–18.0 (6) 14.1–17.5 35.0–37.0 34.0–36.1 15.5–17.0 (19) 17.5–18.0 19.0–20.2 18.7–21.0 23.0–25.0 (7) 22.0–25.0 (11) 27.0 23.0–29.0 29.0–35.0 28.0–33.0 (3) 18.7–28.0 (24) 22.5–29.0 (16) 21.0–32.0 (6) 24.0–30.0 47.0 (1) 46.0–53.0 19.0–25.0 (19) 22.0–24.0 32.8–37.0 34.0–38.0 28.6–34.5 (6) 31.0–41.0 (11) 16.5 15.0–16.0 19.0–22.0 18.0–19.0 (3) 12.0–17.5 (23) 13.0–16.0 (18) 16.0–18.0 (6) 16.0–20.0 24.0 (1) 25.5–30.0 15.5–19.5 (19) 18.5–19.0 13.5–15.0 12.0–13.5 21.0–25.5 (7) 19.5–25.0 (11)
Megaderma spasma Infrequent * Megadermatidae 1♂ 57.6 21.0 33.0 0.0 31.0
TABLE 3. Continued
Family Capture Presence at karst formation frequency at n Sangkulirang Tabalar Baai Marang Tintang Forearm (mm) Mass (g) Tibia (mm) Tail (mm) Ear (mm)
Nycteris tragata Infrequent * Nycteridae 1♂ 48.0 13.5 27.3 59.4 29.6
Rhinolophus acuminatus R. affinis Rhinolophus sp.? R. borneensis R. creaghi 1 R. pusillus Infrequent Common Infrequent Common Common Common * * * * * * * * * * * * * * Rhinolophidae 1♂ 45.4 14♂♂ 46.5–48.2 4♀♀ 47.1–48.8 1♂ 47.5 7♂♂ 40.5–43.8 4♀♀ 41.1–43.3 22♂♂ 46.0–52.2 14♀♀ 47.4–51.7 9♂♂ 37.0–39.9 5♀♀ 37.9–39.5 9.0 9.0–11.8 8.0–10.0 11.5 6.8–8.0 6.5–7.8 9.0–12.0 8.5–11.0 4.0–5.0 4.0–5.0 19.9 19.5–22.1 (12) 20.5–21.7 (3) 21.0 17.4–18.5 (4) 17.0–18.1 (4) 20.0–25.0 (13) 22.2–25.5 (10) 15.5–17.5 (8) 15.4–16.0 (4) 26.0 21.0–23.5 (11) 22.0–24.0 (3) – 20.0–24.0 (4) 22.0–25.0 16.0–21.0 (13) 17.0–23.0 (9) 16.0–20.0 (8) 17.0–20.0 (4) 20.5 18.5–22.0 (11) 19.0–19.5 (3) 21.0 15.0–18.0 (4) 17.5–19.0 19.0–24.0 (13) 19.5–21.5 13.5–16.5 (8) 14.0–16.0 (4)
Kerivoula hardwickii K. minuta 1 K. papillosa K. pellucida Miniopterus australis M. magnater Murina rozendaali 1 M. suilla Myotis horsfieldii M. montivagus 1 M. muricola Pipistrellus sp. Infrequent Infrequent Infrequent Infrequent Common Moderate Infrequent Infrequent Infrequent Moderate Infrequent Infrequent * * * * * * * * * * * * * * Vespertilionidae * 2♂♂ 29.7–30.2 1♀ 34.0 * 8♂♂ 26.0–27.1 6♀♀ 25.7–29.9 * 1♂ 44.7 1♀ 46.7 1♂ 30.8 * 11♂♂ 36.1–37.8 7♀♀ 36.1–37.0 * 6♂♂ 46.0–50.1 3♀♀ 47.7–48.9 1♂ 32.1 1♂ 28.5 2♂♂ 34.7–37.3 6♀♀ 35.7–38.2 2♂♂ 42.8–44.4 3♀♀ 42.1–44.5 1♀ 33.1 * 2♀♀ 37.6–38.8 3.0 4.0 2.0 2.0–2.5 11.0 12.5 4.0 5.0–6.0 5.0–5.5 11.0–12.0 11.0 5.8 3.5 6.0–6.5 6.0–7.0 9.5–10.0 9.5–10.5 4.0 10.5–13.0 10.5–16.5 18.8 14.0 (7) 10.5–14.8 20.4 21.5 17.1 14.8–15.5 (5) 14.4–15.7 20.1–21.4 (5) 20.13 (1) 17.8 13.8 16.0–16.6 15.4–17.0 17.7–17.9 17.3–18.0 14.5 14.7–15.6 40.0 42.0 32.8–38.0 (7) 40.0–41.0 51.0 48.0 40.8–41.7 (4) 36.9–42.8 56.2–60.3 (5) 20.13 (1) 36.0 32.0 36.0–39.0 37.0–38.0 (3) 40.7–47.0 42.5–46.0 39.0 38.0–39.0 12.0–13.5 13.0 9.0–11.0 (5) 9.5–10.5 15.0 16.0 15.0 10.0–12.0 10.2–11.6 56.2–60.3 (5) 55.78 (1) 13.5 12.0 13.0–14.0 11.0–17.0 (3) 14.0 (1) 11.5–12.5 (2) 14.0 10.0–13.0
entrances of Gua Dep at Baai, an unnamed cave at Tintang, and an unnamed cave at Berantai (also known as Tabalar Ulu) vil- lage near the Tabalar formation. An individ- ual from Berantai was captured in a hand net to confirm identification by skull length and to compare to material from other is- lands. The specimen compares favourab- ly, and exhibits the square molars with well developed cusps indicative of C. hors- fieldii . There are scattered reports of this species in Borneo (of which this is the sec- ond for East Kalimantan ) where it has also been noted to roost in caves and forests (Ya- suma, 1994).