Apparent Constant Adult Survival of a Sand Martin Riparia riparia Population in Relation to Climatic Variables

Ardea

Alberto Tamietti²  Enrico Caprio³  Giovanni Boano⁴  Giulia Masoero¹ 

[1] 1 Università degli Studi di Torino, Dipartimento di Scienze della Vita e Biologia dei Sistemi, Via Accademia Albertina 13, 10123 Torino, Italy;2 Parco del Po e della Collina Torinese, Corso Trieste 98, Moncalieri (TO), Italy;1 Università degli Studi di Torino, Dipartimento di Scienze della Vita e Biologia dei Sistemi, Via Accademia Albertina 13, 10123 Torino, Italy 4 Scuola di Biodiversità di Villa Paolina, c/o Consorzio Asti Studi Superiori - Piazzale F. De Andre', 14100 Asti, Italy;3 Museo Civico di Storia Naturale di Carmagnola, Via San Francesco di Sales 188, Carmagnola (TO), Italy

关键词: Climate;   

DOI  :  

学科分类：动物科学

来源: Nederlandse Ornithologische Unie/Netherlands Ornithological Union

【 摘 要 】

TheSandMartinRipariaripariaisatrans-Saharanmigrantspecies,whosepopulationsaredecliningthroughoutEurope.WepresenttheresultsofamultipleyearstudyonabreedingpopulationofSandMartinsalongtheRiverPoinNorthernItalythroughringingbreedingbirdsatnestingcolonies(2002–2014).Therewasatrendfortheabundanceofthestudiedpopulationtofluctuate.Recapturedatawereanalysedtoobtainapparentsurvivalprobabilitieswhichdifferedbetweenthesexes,butnotbetweenyears.Noapparentrelationshipwasfoundbetweensurvivalandthreedifferentmeteo-climaticindices(NorthAtlanticOscillation,SahelrainfallandLakeChadrainfall).Duringthe1980sand1990s,wintersurvivalwaspositivelycorrelatedwithrainfallinthewinterquarters.Althoughrainfallinthewinterquartershasbeenmorestableduringthepast15years,SandMartinpopulationsarestilldecreasing.Ourfindingssuggestthattherelationshipwithrainfallnolongerholds,andthatcurrentpopulationdeclinesmaybeunrelatedtoclimateinthewinterquarters.

【 授权许可】

Unknown