Nest Reuse by Eurasian Blackcap Sylvia atricapilla
[摘要] Reusingoldnestsforbreedingmightprovidebirdswithbenefitssuchassavingthetimeandenergyneededtobuildanewnest,orbydecreasingtheriskofpredationwhilebuildinganest.Despitethesebenefits,manyspeciesusetheirnestsonlyonce.ThisstudyaimedtodeterminehowfrequentlyEurasianBlackcapsSylviaatricapilla,whichbuilddelicateopencupneststhatareparticularlysusceptibletodamage,mightreusetheirnestwithinaseasonandifextensivedamagetoanestlimiteditsreuse.Iconductedthestudyin2002–2008inforestsnexttothecityofBydgoszczincentralPoland.Iexamined479Blackcapnestsafterthefailureorsuccessofthenestwasknown.Nestswereclassifiedasdamagedorundamaged(73.7%ofthesample).Onlyfournestswerereused,representing0.8%ofallnestsand1.1%oftheundamagednests.Thelargenumberofundamagedbutinactivenestsindicatedthattheextentofdamagewasunlikelytobethereasonthatnestswererarelyreused.ThestudyalsoshowedthatBlackcapsrarelyusedmaterialfromanoldnesttobuildanewnest.
[发布日期] [发布机构]
[效力级别] [学科分类] 动物科学
[关键词] Sylviid Warblers [时效性]
