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Breeding range variation between Korean hylids (Dryophytes sp.)
Erick Kim,Andi Nugraha Cahyana,장이권,Amaël Borzée 국립중앙과학관 2019 Journal of Asia-Pacific Biodiversity Vol.12 No.2
Home ranges represent the space where individuals eat, mate, and shelter. Breeding ranges are the areain which breeding activities are conducted, and in calling anurans, they generally include a territory witha calling site. There are two competing treefrog species in the Korean Peninsula, the endangered Suweontreefrog (Dryophytes suweonensis) and the common Japanese treefrog (D. japonicus). These two speciesare known to have a significant impact on each other’s behavior, and in this study, we test for variationsin breeding range and displacement distance. Data were collected through Harmonic Direction Findertracking for 26 D. japonicus and 6 D. suweonensis, aiming at 72-h tracking per individual. We determinedthat despite the absence of variation in the two species’ breeding range, there was a significant variationin mean average displacement, with D. japonicus moving more than D. suweonensis. This result matcheswith our expectation as D. japonicus has been demonstrated to be bolder and more exploratory and alsouses a larger variety of microhabitats between nocturnal periods of call production. These results areimportant in the larger framework of D. suweonensis conservation and the determination of theecological space of these two species.