首页|When Fleeing Matters:Differences in Escape Behaviours of Three Northeast Asian Anurans

When Fleeing Matters:Differences in Escape Behaviours of Three Northeast Asian Anurans

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Prey species may have their own optimal escape strategy to balance predation risks and the energetic cost of fleeing.Some species have an advantage when maintaining a short fleeing distance,while others may favour an earlier escape based on microhabitat,size,or body condition.Here,we examined the escape behaviour of the three syntopic Northeast Asian anuran species:Mongolian toads(Strauchbufo raddei),Amur brown frogs(Rana amurensis),and Japanese treefrogs(Dryophytes japonicus)in Mongolia,Russia,China and DPR Korea.We examined flight initiation distance(FID;the distance from a potential predator to the point when the individual starts to flee)and distance fled(DF;distance between flight initiation and flight termination points)of each species and the effects of microhabitat,sex,and body size.Strauchbufo raddeiand R.amurensis had a longer FID than D.japonicus,and S.raddei also had a longer DF than D.japonicus.These trends remained similar when dividing FID and DF by a size proxy(snout-vent length)for all individuals.This suggests that the treefrog D.japonicus used a strategy to stay immobile even when they were detected,and the toad S.raddei reacted quicker and more sensitively to predators despite the presence of toxin.Female S.raddei had a significantly longer FID than males suggesting that females are more sensitive to predation risk in this species,but body size was not significant for any of the three species.Our results indicate that the three sympatric species have different escaping strategies,likely related to differences in physiology and crypticity.

amphibiandistance fledescape behaviourflight initiation distancepredation

Yoonjung YI、Zoljargal PUREVDORJ、Irina MASLOVA、Yikweon JANG、Ama?l BORZéE

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Laboratory of Animal Behaviour and Conservation,College of Life Sciences,Nanjing Forestry University,Nanjing 210037,Jiangsu,China

Division of EcoScience and Department of Life Sciences,Ewha Womans University,Seoul 03760,Republic of Korea

Department of Biology,School of Mathematics,Mongolian State University of Education,Ulaanbaatar 210648,Mongolia

Department of Forest and Environmental Resources,Chungnam National University,Daejeon 34134,Republic of Korea

Federal Scientific Center of the East Asia Terrestrial Biodiversity,Far Eastern Branch of Russian Academy of Sciences,Vladivostok 690022,Russia

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Foreign Youth Talent Program of the Ministry of Science and Technology of the People's Republic of ChinaKorea Environmental Industry and Technology Institutestate assignment of Ministry of Science and Higher Education of the Russian Federation

QN2023014004LKEITI 2021002270001124012200182-1

2024

10.3724/ahr.2095-0357.2023.0009

亚洲两栖爬行动物研究(英文版)
中国科学院成都生物研究所

亚洲两栖爬行动物研究(英文版)

影响因子：0.2
ISSN：2095-0357
年,卷(期)：2024.15(1)
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