{"refrec":{"BRefID":339063,"RR":"<b>Bakker, W.J.; Ens, B.J.; Dokter, A.M.; van der Kolk, H.-J.; Rappoldt, K.; van de Pol, M.; Troost, K.; van der Veer, H.W.; Bijleveld, A.I.; van der Meer, J.; Oosterbeek, K.; Jongejans, E.; Allen, A.M.</b> (2021). Connecting foraging and roosting areas reveals how food stocks explain shorebird numbers. <i>Est., Coast. and Shelf Sci. 259</i>: 107458. <a href=\"https://doi.org/10.1016/j.ecss.2021.107458\" target=\"_blank\">https://doi.org/10.1016/j.ecss.2021.107458</a>","BEntID":335698,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Est., Coast. and Shelf Sci. 259</i>: 107458. <a href=\"https://doi.org/10.1016/j.ecss.2021.107458\" target=\"_blank\">https://doi.org/10.1016/j.ecss.2021.107458</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Bakker, W.J.; Ens, B.J.; Dokter, A.M.; van der Kolk, H.-J.; Rappoldt, K.; van de Pol, M.; Troost, K.; van der Veer, H.W.; Bijleveld, A.I.; van der Meer, J.; Oosterbeek, K.; Jongejans, E.; Allen, A.M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Bakker, W.J. <i>et al.</i>","Englishabstract":"Shorebird populations, especially those feeding on shellfish, have strongly    declined in recent decades and identifying the drivers of these declines is    important for conservation. Changing food stocks are thought to be a key    driver of these declines and may also explain why trends have not been    uniform across Europe's largest estuary. We therefore investigated howwinter population trends of Eurasian oystercatchers (    <i>Haematopus ostralegus</i>) were linked to food availability in the Dutch    Wadden Sea. Our analysis incorporated two spatial scales, a smaller scale    focused on roost counting areas and food available to birds in these areas    and a larger spatial scale of tidal basins. A novelty in our study is that    we quantify the connectivity between roosting and foraging areas,    identified from GPS tracking data. This allowed us to estimate food    available to roosting birds and thus how food availability may explain    local population trends. At the smaller spatial scale of roost counting    areas, there was no clear relationship between available food and the    number of roosting oystercatchers, indicating that other factors may drive    population fluctuations at finer spatial scales. At the scale of tidal    basins, however, there was a significant relationship between population    trends and available food, especially cockle <i>Cerastoderma edule</i>,.    Mortality and recruitment alone could not account for the large    fluctuations in bird counts, suggesting that the site choice of wintering    migratory oystercatchers may primarily drive these large fluctuations.    Furthermore, the relationship between oystercatcher abundance and benthic    food stocks, suggests winter shorebird counts could act as ecological    indicators of ecosystem health, informing about the winter status of food    stocks at a spatial scale of tidal basins.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Connecting foraging and roosting areas reveals how food stocks explain shorebird numbers","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-19 01:32:11.892393","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Connectivity; Foraging behaviour; Local movements; Oystercatcher; Population size; Zoobenthos; Europe; Netherlands; Wadden sea","OtherDescriptors":null,"Notes":null,"AnaPub":2021,"MonPub":null,"DateUpdate":"2021-06-16","DateCreate":"2021-06-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000685894100004","VABBcode":null,"OpenAcc":1,"DOI":"10.1016/j.ecss.2021.107458"},"refs":null,"anarec":{"AnaID":339063,"PubliDate":2021,"Pagination":"107458","XtraPublOfAnaID":null,"ISBN":null,"Volume":"259","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":44109,"SerRR":"Estuarine, Coastal and Shelf Science. 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