Calling-Site Preferences of Three Co-occurring Endangered Frog Species on Amami-Oshima Island

Research on Amami-Oshima Island reveals that three critically endangered frog species—Babina subaspera, Odorrana splendida, and O. amamiensis—exhibit overlapping yet distinct preferences for calling-site conditions. By analyzing 67 stream sites using joint species distribution modeling, the study identified key abiotic (water flow volume, temperature) and biotic factors influencing their habitat selection. Findings suggest that while these frogs co-occur more frequently than random chance due to shared environmental tolerances, interspecific interactions may further shape their distribution patterns. This underscores the need for integrated conservation strategies targeting multiple species in biodiversity hotspots.

Iwai, N., Yasumiba, K., & Akasaka, M. (2018). Calling-Site Preferences of Three Co-occurring Endangered Frog Species on Amami-Oshima Island. Herpetologica, 74(3), 199–206. https://doi.org/10.1655/herpetologica-d-17-00064.1