Dit proefschrift is het resultaat van een vergelijkend onderzoek naar de populatiedynamica
van Zilvermeeuwen en Kleine Mantelmeeuwen in de westelijke Waddenzee, opgezet zodat …

Physical attributes of a nest site can be important in determining the outcome of a breeding
event. However, high-quality individuals may be more able to obtain particular sites, and …

Abstract The use of Unmanned Aerial Vehicles (UAVs) to monitor large colonies of seabirds
avoids challenges associated with conventional methods, but manual image processing is …

For birds that breed in large colonies, the overall area occupied by the colony generally
comprises several sub-areas that differ in physical and social features such as vegetation …

Seabirds in expanding colonies select the highest-quality nesting habitat, but habitat
selection has seldom been studied in declining colonies. We studied a colony of Magellanic …

Herring gulls (Larus argentatus) are declining globally, but there are populations who are
taking advantage of the new foraging and nesting opportunities afforded to them by urban …

While Lesser Black-backed Gull Larus graellsii numbers increase substantially at the
German North Sea coast since the late 1980s, Herring Gull Larus argentatus numbers have …

Executive summary I. This project aimed to:(i) produce the most up to date review possible of
the size and distribution of urban gull colonies in Scotland, and whether they have changed …

We examined microhabitat preferences and their adaptiveness for the kelp gull Larus
dominicanus in one of its largest colonies in Patagonia. We quantified 13 habitat variables at …

Central parts of avian colonies provide better safety against predators and, thus, are likely to
be occupied by pairs of high quality. Therefore, spatial variation in the quality of breeders …