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Using bioacoustic tools to clarify species delimitation within the Blakiston's Fish Owl(Bubo blakistoni)complex

Avian Research 2022年第1期13卷 17-24页

作者： Nyanasengeran Movin tatjana gamova Sergei G.Surmach Jonathan C.Slaght A.A.Kisleiko James A.Eaton Frank E.Rheindt Department of Biological Sciences National University of Singapore16 Science Drive 4Singapore117558Singapore Federal Scientific Center for Biodiversity of Terrestrial Biota of East Asia FEB RAS.Vladivostok Russia Wildlife Conservation Society 2300 Southern BlvdBronxNYUSA10460 Kurilskii State Nature Reserve Yuzhno-KurilskRussia A-3A-5 Casa Indah ⅠPersiaran Surian47810Petaling JayaMalaysia

Although Blakiston’s Fish Owl(Bubo blakistoni) is widely treated as a single species,marked differences in the structure of pair duets between continental and insular populations have been ***,no study has quantitatively assessed these vocal *** obtained 192 duets from 22 pairs of Blakiston’s Fish Owl:15 pairs of *** from the Japanese island of Hokkaido and the Russian Kuril island of Kunashir,and seven pairs of *** from Primorye on the Russian *** is a sizeable dataset for such a large,retiring,and rare *** conducted bioacoustic examinations of 14 vocal parameters using principal component analysis and the Isler criterion to quantitatively test species boundaries within the *** *** found that the insular populations on Hokkaido and Kunashir emerged as vocally similar to each other but markedly different from the continental populations of ***,corresponding closely with presently accepted subspecies *** differences in the duets of the insular and continental groups are greater than the pairwise comparisons of territorial vocalisations between other sympatric owl *** on the reproductive importance of vocal duets in owl biology,we propose the taxonomic elevation of the continental subspecies to species level as Northern Fish Owl *** study corroborates the importance of bioacoustics in ascertaining species boundaries in owls and has important implications for the management of the two newly delimited species,each likely to be assessed as *** species should be managed independently to optimise conservation outcomes.

关键词： Eagle Owl Japan Russian Far East Taxonomy Biogeography

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