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

Title
When Fleeing Matters: Differences in Escape Behaviours of Three Northeast Asian Anurans
Authors
YiYoonjungPurevdorjZoljargalMaslovaIrinaJangYikweonBorzéeAmaël
Ewha Authors
장이권
SCOPUS Author ID
장이권scopus
Issue Date
2024
Journal Title
Asian Herpetological Research
ISSN
2095-0357JCR Link
Citation
Asian Herpetological Research vol. 15, no. 1, pp. 41 - 48
Keywords
amphibiandistance fledescape behaviourflight initiation distancepredation
Publisher
Asiatic Herpetological Research Society
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
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 raddei and 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. © 2023 Asian Herpetological Research Editorial Office and Science Press.
DOI
10.3724/ahr.2095-0357.2023.0009
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자연과학대학 > 생명과학전공 > Journal papers
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