Hot spring frogs ( Buergeria japonica ) prefer cooler water to hot water
| Autor: | Yoichi Sutoh, Kensuke Kobayashi, Quintin Lau, Takeshi Igawa, Shohei Komaki, Shigeru Saito, Claire T. Saito |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Amphibian Population Tree frog 010603 evolutionary biology 01 natural sciences 03 medical and health sciences lcsh:QH540-549.5 biology.animal behavioral observations thermal ecology education Rhacophoridae Ecology Evolution Behavior and Systematics 030304 developmental biology Nature and Landscape Conservation 0303 health sciences geography Hot spring education.field_of_study geography.geographical_feature_category Ecology biology Buergeria japonica biology.organism_classification Tadpole Archipelago Environmental science lcsh:Ecology |
| Zdroj: | Ecology and Evolution, Vol 10, Iss 17, Pp 9466-9473 (2020) |
| ISSN: | 2045-7758 |
| Popis: | “Hot spring frog” is an informal name used for the Japanese stream tree frog (Buergeria japonica), which is widely distributed in Taiwan and the Ryukyu Archipelago in Japan. Some populations of the species are known to inhabit hot springs. However, water temperature can be extremely high around the sources of hot springs. Thus, it is questionable whether B. japonica selectively inhabits such dangerous environments. To address this question, we conducted a series of observations of water temperature preferences of a hot spring population of B. japonica in Kuchinoshima Island in Japan: (a) a field observation of tadpole density in water pools of different temperatures, (b) a field observation of water temperatures where adult males appear for breeding, and (c) an indoor observation of water temperatures selected by adult females for oviposition. As a result, tadpoles showed a higher density in cooler water. Adult males avoided water pools hotter than 37°C, and adult females selected cooler pools for oviposition. Camera records also showed that adult individuals tend to appear around cooler pools. Thus, we did not find any support for the hypothesis that hot spring frogs prefer hot water. Conversely, they apparently tended to prefer cooler water if it was available. Water temperatures around the sources of the hot spring exceed thermal tolerances of the species and could be a strong selective pressure on the population. Thus, the ability to sense and avoid lethal temperatures may be a key ecological and physiological characteristic for the species that inhabit hot springs. |
| Databáze: | OpenAIRE |
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