Large-Scale Monitoring of Waders on Their Boreal and Arctic Breeding Grounds in Northern Europe

Ardea

Martin Green⁴  Magne Husby²  Ã…ke Lindström⁴  John Atle KÃ¥lÃ¥s³  Aleksi Lehikoinen¹ 

[1] 4 Finnish Museum of Natural History, FI-00014 University of Helsinki, Finland;2 Nord-Trøndelag University College, Røstad, NO-7600 Levanger, Norway;3 Norwegian Institute for Nature Research, P.O. Box 5685 Sluppen, NO-7485 Trondheim, Norway;1 Department of Biology, Biodiversity Unit, Lund University, Ecology Building, SE 223 62 Lund, Sweden

关键词: Population Trends;   

DOI  :  

学科分类：动物科学

来源: Nederlandse Ornithologische Unie/Netherlands Ornithological Union

【 摘 要 】

Large-scaleandpopulation-widemonitoringofwadersontheirborealandarcticbreedinggroundshashithertobeenlacking,mainlybecauselogisticsaretrulychallenginginregionswithfewornithologists,vastareasandfewroads.InNorway,SwedenandFinland(here‘Fennoscandia’)therearenownationalmonitoringschemesinplace,aimedattrackingallbirdspecies,whichallowstrendstobeestimatedfornorthernwaderpopulations.WepresentjointFennoscandianpopulationtrendsfor24waderspecies,coveringtheperiod2002–2013(insomecasessomewhatshortertimeperiods).Thedatastemfrom1263routesinNorway,Finland,andthenortherntwothirdsofSweden,allsituatednorthof58°N.Thisareaofonemillionkm2largelycoincideswiththeborealandarcticpartsofFennoscandia.Thetrendsfoundareratherevenlydistributedbetweenstrongincreasesandstrongdeclines.Trendsdonotdifferbetweenshort-andlong-distancemigrants,nordotheyvaryinrelationtobreedinglatitude.RingedPloverCharadriushiaticula,WoodSandpiperTringaglareola,GreenSandpiperT.ochropusandCommonRedshankT.totanushadsignificantpositivetrends,whereasCommonSnipeGallinagogallinago,RuffPhilomachuspugnaxandSpottedRedshankTringaerythropusweredecliningsignificantlyinnumbers.TrendscouldbecalculatedevenforrelativelyuncommonbreedingbirdssuchasTemminck'sStintCalidristemminckii,EurasianDotterelCharadriusmorinellus,Broad-billedSandpiperLimicolafalcinellus,JackSnipeLymnocryptesminimusandRed-neckedPhalaropePhalaropuslobatus,althoughthesetrendsbuildonfewroutesandindividuals,andthushavelowprecision.ThemonitoringschemesinNorwayandFinlandareexpectedtoincreaseincoverageinthecomingyears,withuptoatotalof1555northernroutesbeingtrackedwhentheschemesarefullydeveloped.ThisshouldenablestillmorerobusttrendestimatesfornorthernwadersontheirFennoscandianbreedinggroundstobecalculatedinthefuture.

【 授权许可】

Unknown