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Issue: Vol. 5447 No. 2: 6 May 2024
Type: Article
Published: 2024-05-06
DOI: 10.11646/zootaxa.5447.2.6
Page range: 253-262
Abstract views: 109
PDF downloaded: 4

Enduring the Earthquake: Rediscovery of the Critically Endangered Mesilau Stream Toad, Ansonia guibei Inger, 1966 (Anura, Bufonidae) and its conservation implications

Institute for Tropical Biology and Conservation; Universiti Malaysia Sabah; Jalan UMS; 88400; Kota Kinabalu; Sabah; Malaysia; Lee Kong Chian Natural History Museum; National University of Singapore; 2 Conservatory Drive; Singapore 117377; School of Biological Sciences; Universiti Sains Malaysia; 11800 Minden; Penang; Malaysia
Museum of Zoology; Research & Education Division; Sabah Parks; 10626 Kota Kinabalu; Sabah; Malaysia
Institute for Tropical Biology and Conservation; Universiti Malaysia Sabah; Jalan UMS; 88400; Kota Kinabalu; Sabah; Malaysia
Amphibia Amphibian Borneo endemism IUCN Red List Mount Kinabalu Sabah

Abstract

The Mesilau Stream Toad (Ansonia guibei) is a species of bufonid endemic to Sabah, Borneo, and restricted to a single mountainous location above 1600m in elevation. The species is only known from the type locality, the Mesilau watershed on Mount Kinabalu. An earthquake in 2015 resulted in massive landslides, causing extensive damage to the species’ habitat at Mesilau. This event was expected to have caused significant population declines of at least 80% or even the potential extinction of the species. A survey in 2017 at Mesilau failed to locate any individuals, which resulted in it being listed as Critically Endangered by the IUCN. Surveys in late 2023 to reassess the status of the species and its habitat resulted in the rediscovery of a single subadult specimen of A. guibei. Tadpoles of the species were recorded in the main Mesilau River and one additional tributary, which indicates the species survives and is breeding. Studies are ongoing to collect more ecological data on the species and determine its current distribution. The data gathered will be used to construct a robust conservation plan for the species. Nevertheless, these preliminary observations bode well for the future of the species as it demonstrates that it is resilient and capable of recovering from the damages caused by the earthquake.

 

References

  1. AmphibiaWeb (2024) Available from: https://amphibiaweb.org (accessed 15 January 2024)
  2. Davis, H.R., Grismer, L.L., Klabacka, R.L., Muin, M.A.M., Quah, E.S.H., Anuar, S., Wood Jr., P.L. & Sites Jr., J.W. (2016) The phylogenetic relationships of a new Stream Toad of the genus Ansonia Stoliczka, 1870 (Anura: Bufonidae) from a montane region in Peninsular Malaysia. Zootaxa, 4103 (2), 137–153. https://doi.org/10.11646/zootaxa.4103.2.4
  3. Dring, J.C.M. (1983) Some new frogs from Sarawak. Amphibia-Reptilia, 4, 103–115. https://doi.org/10.1163/156853883X00021
  4. Frost, D.R. (2024) Amphibian Species of the World: an Online Reference. Version 6.2. Available from: https://amphibiansoftheworld.amnh.org/index.php (accessed 31 January 2024)
  5. Grismer, L.L., Wood, Jr., P.L., Aowphol, A., Cota, M., Grismer, M.S., Murdoch, M., Aguilar, C. & Grismer, J.L. (2016) Out of Borneo, again and again: biogeography of the Stream Toad genus Ansonia Stoliczka (Anura: Bufonidae) and the discovery of the first limestone cave-dwelling species. Biological Journal of the Linnean Society, 120, 371–395. https://doi.org/10.1111/bij.12886
  6. Haas, A., Das, I., Hertwig, S.T., Bublies, P. & Schulz-Schaeffer, R. (2022) A Guide to the Tadpoles of Borneo. Tredition, Hamburg, 279 pp.
  7. Hertwig, S.T., Min, P.Y., Haas, A. & Das, I. (2014) Dressed in black. A new Ansonia Stoliczka, 1870 (Lissamphibia: Anura: Bufonidae) from Gunung Murud, Sarawak, East Malaysia (Borneo). Zootaxa, 3814 (3), 419–431. https://doi.org/10.11646/zootaxa.3814.3.9
  8. Imbun, P.Y. (2014) Amfibia Sabah. Dewan Bahasa dan Pustaka, Kuala Lumpur, 194 pp.
  9. Inger, R.F. (1960) A review of the oriental toads of the genus Ansonia Stoliczka. Fieldiana. Zoology, 39, 473–503. https://doi.org/10.5962/bhl.title.2697
  10. Inger, R.F. (1966) The systematics and zoogeography of the Amphibia of Borneo. Fieldiana, Zoology, 52, 1–402. https://doi.org/10.5962/bhl.title.3147
  11. Inger, R.F., Lakim, M., Biun, A. & Imbun, P.Y. (1997) A new species of Leptolalax (Anura: Megophryidae) from Borneo. Asiatic Herpetological Research, 7, 48–50. https://doi.org/10.5962/bhl.part.18855
  12. Inger, R.F. & Stuebing, R.B. (2005) A Field Guide to the Frogs of Borneo. 2nd Edition. Natural History Publications (Borneo) Sdn. Bhd., Kota Kinabalu, Sabah, 201 pp.
  13. Inger, R.F., Stuebing, R.B., Grafe, T.U. & Dehling, J.M. (2017) A Field Guide to the Frogs of Borneo. 3rd Edition. Natural History Publications (Borneo) Sdn Bhd., Kota Kinabalu, Sabah, 228 pp.
  14. IUCN SSC Amphibian Specialist Group (2018) Ansonia guibei. The IUCN Red List of Threatened Species, 2018, e.T54468A123646580. https://doi.org/10.2305/IUCN.UK.2018-1.RLTS.T54468A123646580.en
  15. Luedtke, J.A., Chanson, J., Neam, K., Hobin, L., Maciel, A.O., Catenazzi, A., Borzée, A., Hamidy, A., Aowphol, A., Jean, A., Sosa-Bartuano, A., Fong, G.A., de Silva, A., Fouquet, A., Angulo, A., Kidov, A.A., Muñoz Saravia, A., Diesmos, A.C., Tominaga, A., Shrestha, B., Gratwicke, B., Tjaturadi, B., Martínez Rivera, C.C., Vásquez Almazán, C.R., Señaris, C., Chandramouli S.R., Strüssmann, C., Fabiola, C., Fernández, C., Azat, C., Hoskin, C.J., Hilton-Taylor, C., Whyte,D.L., Gower, D.J., Olson, D.H., Cisneros-Heredia, D.F., José Santana, D., Nagombi, E., Najafi-Majd, E., Quah, E.S.H., Bolaños, F., Xie, F., Brusquetti, F., Álvarez, F.S., Andreone, F., Glaw, F., Enrique Castañeda, F., Kraus, F., Parra-Olea, G., Chaves, G., Medina-Rangel, G.F., González-Durán, G., Mauricio Ortega-Andrade, H., Machado, I.F., Das, I., Dias, I.R., Nicolas Urbina-Cardona, J., CrnobrnjaIsailović, J., Yang, J.H., Jianping, J., Tshelthrim Wangyal, J., Rowley, J.J.L., Measey, J., Vasudevan, K., Onn Chan, Vasudeva Gururaja, K., Ovaska, K., Warr, L.C., Canseco-Márquez, L., Felipe Toledo, L., Díaz, L.M., Khan, M.H., Meegaskumbura, M., Acevedo, M.E., Felgueiras Napoli, M., Ponce, M.A., Vaira, M., Lampo, M., Yánez-Muñoz, M.H., Scherz, M.D., Rödel, M.O., Matsui, M., Fildor, M., Kusrini, M.D., Ahmed, M.F., Rais, M., Kouamé, N.G., García, N., Gonwouo, N.L., Burrowes, P.A., Imbun, P.Y., Wagner, Kok, P.J.R., Joglar, R.L., Auguste, R.J., Albuquerque Brandão, R., Ibáñez, R., von May, R., Hedges, S,B., Biju, S.D., Ganesh, S.R., Wren, S., Das, S., Flechas, S.V., Ashpole, S.L., Robleto-Hernández, S.J., Loader, S.P., Incháustegui, S.J., Garg, S., Phimmachak, S., Richards, S.J., Slimani, T., Osborne-Naikatini, T., Abreu-Jardim, T.P.F., Condez, T.H., De Carvalho, T.R., Cutajar, T.P., Pierson, T.W., Nguyen, T.Q., Kaya, U., Yuan, Z., Long, B., Langhammer, P. & Stuart, S.N. (2023) Ongoing declines for the world’s amphibians in the face of emerging threats. Nature, 622, 308–314. https://doi.org/10.1038/s41586-023-06578-4
  16. Malkmus, R. & Kosuch, J. (2000) Beschreibung einer neuen Ansonia-Larve (Ansonia guibei) von Borneo. Salamandra, 36 (2), 121–124.
  17. Malkmus, R., Manthey, U., Vogel, G., Hoffmann, P. & Kosuch, J. (2002) Amphibians and Reptiles of Mount Kinabalu (North Borneo). A.R.G. Ganter Verlag Kommanditgesellschaft, Ruggel, 424 pp.
  18. Matsui, M., Nishikawa, K., Eto, K. & Hossman, M.Y.B. (2020) Two new Ansonia from mountains of Borneo (Anura, Bufonidae). Zoological Science, 37, 91–105. https://doi.org/10.2108/zs190078
  19. Mocquard, F. (1890) Recherches sur la faune herpetologique des iles de Bornéo et de Palawan. Nouvelles Archives du Muséum d’Histoire Naturelle, Paris, Série 3, 2, 115–168.
  20. Pui, Y.M., Ong, J.J. & Das, I. (2011) Rediscovery of one of the world’s top 10 most wanted ‘lost frogs’, Ansonia latidisca, the Bornean Rainbow Toad, on Gunung Penrissen, western Sarawak, Borneo. Froglog IUCN/SSC Amphibian Specialist Group Newsletter, 97, 6–8.
  21. Quah, E.S.H., Grismer, L.L., Muin, M.A. & Shahrul, A.M.S. (2011) Re-discovery and re-description of Ansonia penangensis Stoliczka, 1870 (Anura: Bufonidae) from Penang Island, Malaysia. Zootaxa, 2807 (1), 57–64. https://doi.org/10.11646/zootaxa.2807.1.4
  22. Quah, E.S.H., Grismer, L.L., Wood Jr., P.L., Thura, M.K., Oaks, J.R. & Lin, A. (2019) Discovery of the westernmost population of the genus Ansonia Stoliczka (Anura, Bufonidae) with the description of a new species from the Shan Plateau of eastern Myanmar. Zootaxa, 4656 (3), 545–571. https://doi.org/10.11646/zootaxa.4656.3.11
  23. Savage, J.M. & Heyer, W.R. (1997) Digital webbing formulae for Anurans: a refinement. Herpetological Review, 28, 131.