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Article
Rosemarie Kentie, Auteur ; Judy Shamoun-Baranes, Auteur ; Arie L. Spaans, Auteur ; Kees (C. J.) Camphuysen, AuteurDemographic rates such as recruitment and survival probability can vary considerably among populations of the same species due to variation in underlying environmental processes. If environmental processes are spatially correlated, nearby popula[...]
Article
Leo M. J. Van Den Bergh, Auteur ; Arie L. Spaans, Auteur ; Norman D. van Swelm, AuteurDans Limosa (75(1) 2002)We studied the behaviour of gulls (mainly Herring Larus argentatus and Lesser Black-backed Gulls L. graellsii) and Common Terns Sterna hirundo flying between breeding colonies and feeding areas at sea at two wind farms (Slag Dobbelsteen and Sluf[...]
Article
Arie L. Spaans, AuteurDans Limosa (73(3) 2000)I investigated winter site-fidelity of 194 individually colour-ringed Black-headed Gulls at a pond in the city centre of The Hague during two winters in the early 1960s. All birds were caught by hand in flight when taking bread from the hand exc[...]
Article
Sjoerd Dirksen, Auteur ; Arie L. Spaans, Auteur ; Jan van der Winden, Auteur ; Leo M. J. Van Den Bergh, AuteurDans Limosa (71(2) 1998)During the non-breeding season, the Ijsselmeer area in The Netherlands forms an important staging area for large numbers of diving ducks. The birds feed in the open water at varying distances from the coast and roost either in the lee of dikes o[...]
Article
C. J. Camphuysen, Auteur ; Harry J. P. Vercruijsse, Auteur ; Arie L. Spaans, AuteurThe Herring Gull population in The Netherlands went through phases of exploitation, protection, persecution and again (partial) protection during the nineteenth and twentieth centuries. The numbers of breeding pairs peaked in the 1980s at approx[...]
