Continent-wide vocal leapfrog pattern in Collared Scops Owls obfuscates species boundaries  

作　　者：Meng Yue Wu Frank E.Rheindt 

机构地区：[1]Department of Biological Sciences,National University of Singapore,16 Science Drive 4,Singapore,Rep [2]Department of Environmental Sciences,Zoological Institute,University of Basel,Basel,Switzerland

出　　处：《Avian Research》2023年第4期565-571,共7页鸟类学研究（英文版）

基　　金：supported by a Singapore National Research Foundation (NRF) Investigatorship (WBS A-8001397-00-00) to FER.

摘　　要：Much confusion has surrounded the taxonomy of the Collared Scops Owl(Otus bakkamoena)complex,distributed widely across tropical and subtropical Asia.Often divided into three species,modern taxonomies disagree on its treatment,as a lack of deep mitochondrial DNA divergence is seemingly in contrast with patterns of vocal differentiation.Analysing a dataset of territorial calls of 122 individuals across Asia,we identified a vocal leapfrog pattern in which owl populations at the eastern and western ends of the distribution sound more similar to each other but are separated by different-sounding populations in between.The boundaries between vocal types are not congruent with traditional species boundaries.Our data allow for a re-drawing of species boundaries and reveal that Collared Scops Owls follow a biogeographic pattern rare in Southeast Asian birds.However,this pattern is shared with several other owl complexes in that peninsular Malaysian populations form part of a continental Asian species centred further north in Southeast Asia rather than forming part of a Sundaic species centred in the adjacent Indonesian Archipelago.

关 键 词：Asia BIOGEOGRAPHY Species delimitation Taxonomy BIOACOUSTICS 

分 类 号：Q958[生物学—动物学]