Predation Risk of Tawny Owl Strix aluco Nests in Relation to Altitude, Breeding Experience, Breeding Density and Weather Conditions

Ardea

Lajos Sasvári¹  Zoltán Hegyi² 

[1] 1 Department of Zoology, Eszterházy Károly College of Education, H-3300 Eger, Leányka u. 6, Hungary;2 Management of Duna-Ipoly National Park, H-1021 Budapest, Hűvösvölgyi út 52, Hungary

关键词: Tawny Owl;   

DOI  :  

学科分类：动物科学

来源: Nederlandse Ornithologische Unie/Netherlands Ornithological Union

【 摘 要 】

NestpredationwasstudiedinapopulationofTawnyOwlsStrixalucointheDuna-IpolyNationalPark,Hungaryduringtheperiod1992–2009,andrelatedtothechoiceofnestingsitesatdifferentaltitudes,thebreedingexperienceofmales,andweatherconditions.Theuseofnestingsitesathighelevationsreducedtheriskofnestpredationincomparisontolowerelevations,wherebreedingterritoriesoccuratahigherdensity.Also,theriskofnestpredationdecreasedasthelocalbreedingexperienceofmalesincreased.Adverseweatherconditions,i.e.long-lastingsnowcover,increasingbreedingdensity,andlaterlayingdatesenhancedtheprobabilityofbreedingfailurebynestpredation.Broodsweredepredatedinthenestlingperiodratherthanduringincubation.

【 授权许可】

Unknown