Population trends, timing of breeding and survival of Salvina€?s albatrosses (Thalassarche salvini) at Proclamation Island, Bounty Islands, New Zealand | Notornis and Birds New Zealand

Sagar PM; Amey J; Scofield RP; Robertson CJR

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Population trends, timing of breeding and survival of Salvina€?s albatrosses (Thalassarche salvini) at Proclamation Island, Bounty Islands, New Zealand | Notornis and Birds New Zealand

机译：新西兰邦蒂岛宣告岛的萨尔维纳信天翁（Thalassarche salvini）的种群趋势，繁殖时机和生存|诺托尼斯和鸟类新西兰

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Weuseddatafrom3sourcestoexaminethepopulationsizeandtrendofSalvina€?salbatrosses(Thalassarchesalvini)breedingonProclamationIsland,BountyIslands,NewZealand.Island-widecountsofbreedingbirdsduringincubationresultedintotalsthatdeclined14%,from3065in1997to2634in2004.Acountofbreedingalbatrossesoverpartoftheislandin2011indicatedafurtherdeclineof13%between2004and2011,andanoveralldeclineof30%between1997and2011.AdditionalcountsonpartofDepotIslandindicatedadeclineof10%inthenumbersofbreedingpairsbetween2004and2011.Dailyobservationsof70nestsshowedthathatchingspannedtheperiodfrom5to21November1997,withamedianof15November,apartfrom5eggsthathadnotyethatchedbytheendofthestudyperiod.BasedonthebandingandrecaptureofchicksbandedinMarch1985annualsurvivalwasestimatedat0.926.ThescaleofthedeclineestimatedinthispopulationhasresultedintheconservationstatusofSalvina€?salbatrossbeingupgradedfromnationallyvulnerabletonationallycritical.

机译：Weuseddatafrom3sourcestoexaminethepopulationsizeandtrendofSalvina€？salbatrosses（Thalassarchesalvini）breedingonProclamationIsland，BountyIslands，NewZealand.Island-widecountsofbreedingbirdsduringincubationresultedintotalsthatdeclined14％，from3065in1997to2634in2004.Acountofbreedingalbatrossesoverpartoftheislandin2011indicatedafurtherdeclineof13％between2004and2011，andanoveralldeclineof30％between1997and2011.AdditionalcountsonpartofDepotIslandindicatedadeclineof10％inthenumbersofbreedingpairsbetween2004and2011.Dailyobservationsof70nestsshowedthathatchingspannedtheperiodfrom5to21November1997，withamedianof15November，apartfrom5eggsthathadnotyethatchedbytheendofthestudyperiod.BasedonthebandingandrecaptureofchicksbandedinMarch1985annualsurvivalwasestimatedat0.926.ThescaleofthedeclineestimatedinthispopulationhasresultedintheconservationstatusofSalvina€？salbatrossbeingupgradedfromnationallyvulnerabletonationallycritical。

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《Southern Bird》 |2015年第1期|共页
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Sagar PM; Amey J; Scofield RP; Robertson CJR;
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1. Population trends, timing of breeding and survival of Salvina€?s albatrosses (Thalassarche salvini) at Proclamation Island, Bounty Islands, New Zealand | Notornis and Birds New Zealand [J] . Amey J, Robertson CJR, Sagar PM, Notornis . 2015,第1期

机译：新西兰邦蒂岛宣告岛的萨尔维纳信天翁（Thalassarche salvini）的种群趋势，繁殖时机和生存|诺托尼斯和鸟类新西兰
2. Population trends, timing of breeding and survival of Salvin’s albatrosses (Thalassarche salvini) at Proclamation Island, Bounty Islands, New Zealand [J] . Sagar PM, Amey J, Scofield RP, Birds New Zealand . 2015,第1期

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Population trends, timing of breeding and survival of Salvina€?s albatrosses (Thalassarche salvini) at Proclamation Island, Bounty Islands, New Zealand | Notornis and Birds New Zealand

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