Partial Incubation During the Egg-Laying Period in the Blackcap Sylvia atricapilla

Ardea

Jacek ZieliÅ„ski¹ 

[1]Department of Zoology and Landscaping, UTP University of Science and Technology, Kordeckiego 20, 85-225 Bydgoszcz, Poland

[2] ([e-mail])

关键词: Onset Of Incubation;   

DOI  :  

学科分类：动物科学

来源: Nederlandse Ornithologische Unie/Netherlands Ornithological Union

【 摘 要 】

Partialincubationreferstoshortboutsofincubationduringtheegglayingperiod.Ideterminedtheoccurrenceofpartialincubationanditsassociationwiththenumberofeggsinthenestatitsonset,intheBlackcapSylviaatricapilla.Additionally,Istudiedtherelationshipsbetweentheoccurrenceofpartialincubationatagivennumberofeggs,airtemperatureandtimeofday.Ateachstageofegg-laying,twonestchecksweredoneeachdaytoestablishiftheclutchwasincubated,until5eggswerelaid;inthisstudy,aclutchoffivewasacompleteclutch.Incubationofone-,two-,three-andfour-eggclutcheswasobservedin0.0%,34.2%,72.2%and95.8%ofthenestchecks,respectively.Ofthetwodailychecks,incubationwasobservedonlyoncein51.8%,37.0%and8.3%oftwo-,three-andfour-eggclutches,respectively,fornestswithconfirmedincubation.Therewasnorelationshipbetweeneitherairtemperatureorthetimeofthenestcheckandwhetherornotaclutchwasincubated.Asignificantincreaseintemperatureoftheeggsoccurredonlyafterthefourtheggwaslaid.

【 授权许可】

Unknown