Song variation of a native songbird in a modified habitat by invasive plant  

作　　者：Pan CHEN Taiyu CHEN Bin LIU Manyu ZHANG Changhu LU 

机构地区：[1]College of Biology and the Environment,Nanjing Forestry University,Nanjing,China [2]School of Ecology and Environment,Anhui Normal University,China

出　　处：《Integrative Zoology》2022年第1期93-104,共12页整合动物学（英文版）

基　　金：funded by the National Natural Science Foundation of China(No.31670432);the Research Culture Funds of Anhui Normal University(No.2020XJ43).

摘　　要：Habitat structure has been considered as an important factor affecting the acoustic evolution of birds,and bird songs are increasingly affected by artificial environmental variation.Invasive plants sometimes can dramatically alter native habitats,but the song variation of native songbirds migrating into invaded habitats has received little attention.The invasion of smooth cordgrass Spartina alterniflora in the coastal wetlands of eastern China has drastically altered the vegetation structure and some small passerines have begun to use invaded habitats to breed.In this study,we compared the song type prevalence and the song characteristics of male plain prinia Prinia inornata to identify differences in vocal behavior between native and invaded habitats.We also tested for differences in vocal behavior in relation to singing perch and wind speed variation between different habitats.The results indicated that males of plain prinia in invaded habitats sang shorter songs than those in native habitats and had a lower song diversity.The homogeneous vegetation structure and higher wind speed in invaded habitats likely leads to males changing the traditional perched singing style.The song variation may be related to the founder effect,the alteration of vegetation structure and microclimate in invaded habitats.This finding highlights the need for better understanding the behavioral evolution of native species in the process of adapting to the invaded habitat.In the future,experimental manipulation is needed to ascertain how the invasive plant drove these vocal behavior changes of native songbirds.

关 键 词：behavioral evolution biological invasion plain prinia smooth cordgrass song diversity 

分 类 号：Q95[生物学—动物学]