The potential function of post-fledging dispersal behavior in first breeding territory selection for males of a migratory bird
作者机构：Centre for Biological DiversityUniversity of St AndrewsSt AndrewsKY169THUK Department of Biological SciencesUniversity of CyprusNicosia1678Cyprus
出 版 物：《Current Zoology》 (动物学报（英文版）)
年 卷 期：2022年第68卷第6期
页 面：708-715页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 071002[理学-动物学]
主 题：dispersal migratory bird juvenile territory selection
摘 要：One possible hypothesis for the function of post-fledging dispersal is to locate a suitable future breeding area.This post-fledging period may be particularly important in migratory species because they have a limited period to gather information prior to autumn migration,and in protandrous species,males must quickly acquire a territory after returning from spring migration to maximize their fitness.Here we use color-ring resightings to investigate how the post-fledging dispersal movements of the Cyprus wheatear Oenanthe cypriaca,a small migratory passerine,relate to their first breeding territory the following year when they return from migration.We found that males established first breeding territories that were significantly closer to their post-fledging location than to their natal sites or to post-fledging locations of other conspecifics,but these patterns were not apparent in females.Our findings suggest that familiarity with potential breeding sites may be important for juveniles of migratory species,particularly for the sex that acquires and advertises breeding territories.Exploratory dispersal prior to a migrant’s first autumn migration may contribute toward its breeding success the following year,further highlighting the importance of early seasonal breeding on fitness and population dynamics more generally.
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