First documented bat records on the Hon Tre Island, Nha Trang Bay, Vietnam

Son N.T., Yuzefovich A.P., Kruskop S.V.

P. 115-122

During the 2020–2021 trips, the bat fauna of Hon Tre Island, located in Nha Trang Bay in Khanh Hoa Province, Vietnam, was studied for the first time. Despite the small size of the island and the lack of fresh water sources on it, we revealed the presence of at least nine bat species from four families, which were captured and studied in the hand. The family Pteropodidae is represented by Cynopterus sphinx, an extremely ecologically flexible species, and also by Rousettus leschenaulti and Eonycteris spelaea; family Hipposideridae — by three species of Hipposideros: H. grandis, H. galeritus and H. gentilis; family Rhinolophidae — by Rhinolophus cf. pusillus and R. pearsonii; family Megadermatidae — by Megaderma spasma. Mitochondrial DNA sequences were obtained for six individuals of three species, which made it possible to confirm morphology-based identifications of the captured animals. In particular, this concerned R. pearsonii, whose specimens differed from those known from the mainland, primarily by their smaller size. The presence of a multi-species bat community on Hon Tre Island necessitates careful planning of tourism and infrastructure development, in order to minimize impact on the natural habitats of the island.DOI: 10.15298/rusjtheriol.21.2.02

• Abramov A.V. & Kruskop S.V. 2012. The mammal fauna of Cat Ba Island, northern Vietnam // Russian Journal of Theriology. Vol.11. No.1. P.57–72.
• Averyanov L.V., Phan Ke Loc, Nguyen Tien Hiep & Harder D.K. 2003. Phytogeographic review of Vietnam and adjacent areas of Eastern Indochina // Komarovia. Vol.3. P.1–83.
• Borissenko A.V. 1999. [A mobile trap for capturing bats in flight] // Plecotus et al. Vol.2. P.10–19 [in Russian with English summary].
• Chornelia A., Lu J. & Hughes A.C. 2022. How to accurately delineate morphologically conserved taxa and diagnose their phenotypic disparities: species delimitation in cryptic Rhinolophidae (Chiroptera) // Frontiers in Ecology and Evolution. Vol.10. P.854509.
• Francis C.M., Borisenko A.V., Ivanova N.V., Eger J.L., Lim B.K., Guillén-Servent A., Kruskop S.V., Mackie I. & Hebert P.D.N. 2010. The role of DNA barcodes in understanding and conservation of mammal diversity in Southeast Asia // PLoS ONE. Vol.5. No.9. P.e12575.
• Grismer L.L. & Ngo Van Tri. 2007. Four new species of the gekkonid genus Cnemaspis Strauch 1887 (Reptilia: Squamata) from Southern Vietnam // Herpetologica. Vol.63. No.4. P.482–500.
• Grismer L.L., Wood Jr. P.L., Poyarkov N.A., Le M.D., Kraus F., Agarwal I., Oliver P.M., Nguyen S.N., Nguyen T.Q., Karunarathna S. & Welton L.J. 2021. Phylogenetic partitioning of the third-largest vertebrate genus in the world, Cyrtodactylus Gray, 1827 (Reptilia; Squamata; Gekkonidae) and its relevance to taxonomy and conservation // Vertebrate Zoology. Vol.71. P.101–154.
• Hastriter M.W. 2007. A review of Ascodipterinae (Diptera: Streblidae) of the Oriental and Australasian regions with a description of three new species of Ascodipteron Adensamer and a key to the subfamily // Zootaxa. Vol.1636. P.1–32.
• Hebert K., Millien V. & Lessard J.-P. 2020. Source pool diversity and proximity shape the compositional uniqueness of insular mammal assemblages worldwide // Journal of Biogeography. Vol.48. No.9. P.2337–2349.
• Ivanova N.V., Clare E.L. & Borisenko A.V. 2012. Mammalian DNA barcoding // Kress W.J. & Erickson D.L. (eds.). DNA Barcodes: Methods and Protocols. Methods in Molecular Biology, vol.858. Hatfield: Humana Press. P.153–182.
• Jones C., McShea W.J., Conroy M.J. & Kunz T.H. 1996. Capturing mammals // Wilson D.E., Cole F.R., Nichols J.D., Rudran R. & Foster M.S. (eds.). Measuring and monitoring biological diversity. Standard methods for mammals. Washington-London: Smithsonian Institution Press. P.115–155.
• Kruskop S.V. 2011. New data on the bat fauna of Con Dao Islands // Russian Journal of Theriology. Vol.10. No.2. P.37–46.
• Kruskop S.V. 2013. Bats of Vietnam. Checklist and an Identification Manual. Second edition, revised and supplemented. Moscow: KMK Scientific Press. 300 p.
• Kruskop S.V. 2015. Dull and bright: cryptic diversity within the Hipposideros larvatus group in Indochina (Chiroptera: Hipposideridae) // Lynx. Vol.46. P.29–42.
• Li G., Jones G., Rossiter S.J., Chen S.-F., Parsons S. & Zhang S. 2006. Phylogenetics of small horseshoe bats from East Asia based on mitochondrial DNA sequence variation // Journal of Mammalogy. Vol.87. P.1234–1240.
• Millien V. 2006. Morphological evolution is accelerated among island mammals // PLoS Biology. Vol.4. No.10. P.e321.
• Ngo Van Tri, Grismer L.L. & Grismer J.L. 2008. A new endemic cave dwelling species of Cyrtodactylus Gray, 1827 (Squamata: Gekkonidae) in Kien Giang Biosphere Reserve, Southwestern Vietnam // Zootaxa. Vol.1967. P.53–62.
• Patiño J., Whittaker R.J., Borges P.A.V., Fernández- Palacios J.M., Ah-Peng C., Araújo M.B., Ávila S.P., Cardoso P., Cornuault J., de Boer E.J., de Nascimento L., Gil A., González-Castro A., Gruner D.S., Heleno R., Hortal J., Carlos Illera J., Kaiser-Bunbury C.N., Matthews T.J., Papadopoulou A., Pettorelli N., Price J.P., Santos A.M.C., Steinbauer M.J., Triantis K.A., Valente L., Vargas P., Weigelt P. & Emerson B.C. 2017. A roadmap for island biology: 50 fundamental questions after 50 years of the theory of island biogeography // Journal of Biogeography. Vol.44. No.5. P.963–983.
• Poyarkov N.A., Nguyen T.V., Popov E.S., Geissler P., Pawangkhanant P., Neang T., Suwannapoom C. & Orlov N.L. 2021. Recent progress in taxonomic studies, biogeographic analysis, and revised checklist of amphibians in Indochina // Russian Journal of Herpetology. Vol.28. No.3A. P.1–10.
• Sambrook J., Fritsch E.F. & Maniatis T. 1989. Molecular Cloning: a Laboratory Manual. Second edition. New York: Cold Spring Harbor Laboratory Press. 1546 p.
• Soisook P., Karapan S., Srikrachang M., Dejtaradol A., Nualcharoen K., Bumrungsri S., Oo S.S. L., Aung M.M., Bates P.J.J., Harutyunyan M., Buś M.M. & Bogdanowicz W. 2016. Hill forest dweller: a new cryptic species of Rhinolophus in the “pusillus group” (Chiroptera: Rhinolophidae) from Thailand and Lao PDR // Acta Chiropterologica. Vol.18. No.1. P.117–139.
• Vu Dinh Thong. 2015. Bats of Cat Tien National Park: diversity, echolocation and taxonomic remarks // Academia Journal of Biology. Vol.37. No.3. P.336–343.
• Vu Dinh Thong & Furey N.M. 2008. [The bat fauna of Cat Ba Biosphere Reserve] // Academia Journal of Biology. Vol.30. P.73–77 [in Vietnamese with English summary].
• Vu Dinh Thong, Nguyen Truong Son, Dao Nhan Loi & Pham Duc Tien. 2010. [An overview of bat research in Bai Tu Long and Con Dao national parks, with results from recent surveys] // Tap Chí Công Nghe Sinh Hoc. Vol.8. No.3A P.999–1005 [in Vietnamese with English summary].
• Vu Dinh Thong, Dao Nhan Loi, Nguyen Thanh Luong, Hoang Quoc Huy & Hoang Trung Thanh. 2018. New records of bats (Mammalia: Chiroptera) from Cu Lao Cham and Ly Son archipelagos, central Vietnam // Academia Journal of Biology. Vol.40. No.4. P.13–21.
• Vu Dinh Thong, Southaphan S. &Pham Van Nha. 2020. The conservation status of bats (Mammalia: Chiroptera) in Cat Ba National Park, Northern Vietnam // HNUE Journal of Science. Vol.65. P.92–98.
• Vu Dinh Thong, Denzinger A., Nguyen Van Sang, Nguyen Thi Thu Huyen, Hoang Trung Thanh, Dao Nhan Loi, Pham Van Nha, Nguyen Van Viet, Pham Duc Tien, Tuanmu M.-N., Huang J.C.-C., Thongphachanh L., Nguyen Thanh Luong & Schnitzler H.-U. 2021. Bat diversity in Cat Ba biosphere reserve, northeastern Vietnam: a review with new records from mangrove ecosystem // Diversity. Vol.13. No.8. P.376.
• Vu Dinh Thong, Denzinger A., Vu Long, Nguyen Van Sang, Nguyen Thi Thu Huyen, Nguyen Hoang Thien, Nguyen Khanh Luong, Le Quang Tuan, Nguyen Manh Ha, Nguyen Thanh Luong & Schnitzler H.-U. 2022. Importance of mangroves for bat research and conservation: a case study from Vietnam with notes on echolocation of Myotis hasselti // Diversity. Vol.14. No.4. P.258.
• Vu Tuy Duong, Nguyen Truong Son, Motokawa M., Ly Ngoc Tu, Dang H., Bui Tuan Hai, Minh L., Endo H. & Oshida T. 2021. A new subspecies of Finlayson’s squirrel from an isolated island offshore of the Indochina Peninsula in southern Vietnam // Mammalia. Vol.86. No.1. P.66–76.
• Yuzefovich A.P., Artyushin I.V. & Kruskop S.V. 2021. Not the cryptic species: diversity of Hipposideros gentilis (Chiroptera: Hipposideridae) in Indochina // Diversity. Vol.13. No.5. P.218.
• Zhang L., Jones G., Zhang J., Zhu G., Parsons S., Rossiter S.J. & Zhang S. 2009. Recent surveys of bats (Mammalia: Chiroptera) from China. I. Rhinolophidae and Hipposideridae // Acta Chiropterologica. Vol.11. No.1. P.71–88.