Home,dirty home:effect of old nest material on nest-site selection and breeding performance in a cavity-nesting raptor  

作　　者：Stefano PODOFILLINI Jacopo G.CECERE Matteo GRIGGIO Andrea CURCIO Enrico L DE CAPUA Egidio FULCO Simone PIRRELLO Nicola SAINO Lorenzo SERRA Matteo VISCEGLIA Diego RUBOLINI 

机构地区：[1]Dipartimento di Scienze e Politiche Ambientali,Universita degli Studi di Milano,via Celoria 26,Milano,I-20133,Italy [2]Istituto Superiore per la Protezione e la Ricerca Ambientale (ISPRA),Ozzano Emilia (BO),Italy [3]Dipartimento di Biologia,Universita degli Studi di Padova,Italy [4]Provincia di Matera -Parco della Murgia Materana,Italy [5]Studio Naturalistico Milvus,Pignola (PZ),Italy [6]De Rerum Natura,Montescaglioso (MT),Italy

出　　处：《Current Zoology》2018年第6期693-702,共10页动物学报（英文版）

摘　　要：The quality of a breeding site may have major fitness consequences.A fundamental step to understanding the process of nest-site selection is the identification of the information individuals use to choose high-quality nest sites.For secondary cavity-nesting bird species that do not add nest lining material,organic remains (faeces,pellets)accumulated inside nest cavities during previous breeding events may be a cue for high-quality nest-sites,as they contain information about past successful breeding and may improve thermal insulation of eggs during incubation.However,cavities in which breeding was successful might also contain more nest-dwelling ectoparasites than unoccupied cavities, offering an incentive for prospective parents to avoid them.We exposed breeding cavity-nesting lesser kestrels (Falco naumanni)to nestbox dyads consisting of a dirty (with a thick layer of organic substrate) and a clean nestbox (without organic material).Dirty nestboxes were strongly preferred,being occupied earlier and more frequently than clean ones.Hatching success in dirty nestboxes was significantly higher than in clean ones,suggesting a positive effect of organic nest material on incubation efficiency, while nestbox dirtiness did not significantly affect clutch and brood size.Nestlings from dirty nestboxes had significantly higher ectoparasite load than those from clean nestboxes soon after egg hatching,but this difference was not evident a few days later.Nest substrate did not significantly affect nestling growth.We concluded that nest substrate is a key driver of nest-site choice in lesser kestrels,although the adaptive value of such a strong preference appears elusive and may be context-dependent.

关 键 词：CAMUS hemapterus ECTOPARASITES nestbex nest substrate NEST-SITE selection 

分 类 号：Q[生物学]