Fishing Flocks of Great Crested Grebes Podiceps cristatus Consist of Breeding Birds
[摘要] Thisnotecorrectsastatementmadeinanearliernoteonflock-fishingGreatCrestedGrebesPodicepscristatusattheSouthSwedishLakeKrankesjön,namelythattheflockspresumablyconsistedmainlyofnon-breeders.Thishasbeenprovedwrong.Themajoritycomefromaloosecolonyandconsistofbirdsduringincubationrecesses.Flock-fishingstartedaround1Mayin2008,2009and2011,butnotuntilthebeginningofJunein2010.Thereasonforthelatestartin2010isunclear.Flocksformedsoonaftersunriseanddissolvedatvarioustimesduringtheday.Onlyoncewasafishingflockseeninearlyevening.
[发布日期] [发布机构]
[效力级别] [学科分类] 动物科学
[关键词] Colonial Breeding [时效性]
