Dunlin (Calidris alpina) Science Article 5 abstract Though a lot is known about the Dunlin, a highly variable wader species in many respects, there is still uncertainty whether substantial numbers of this species migrating through W. Europe in spring, breed as far as Siberia. Data on numbers, turnover, recoveries, body mass and bill length of […]
Category: Charadriiformes
Feeding ecology of Dunlin Calidris alpina in a southern European estuary
Dunlin (Calidris alpina) Science Article 9 abstract The feeding ecology of Dunlin Calidris alpina wintering in southern European wetlands is poorly known. The aim of this paper is to describe the diet, prey selection, foraging habitat selection, and feeding behaviour of wintering Dunlins, and interpret this information in the light of the current knowledge on […]
Sex recognition and breast stripe size in Great Tits.
Dunlin (Calidris alpina) Science Article 6 abstract The stopover of adult Dunlins, Calidris a. alpina during autumn migration at Ottenby, S.E. Sweden, was investigated. The proportion of Dunlins actively moulting their flight feathers was higher among second-year (2-yr) birds than among older ones (3-yr+). We compared stopover length, arrival body mass, departure body mass and […]
Attendance at the nest of polyandrous Dotterel Charadrius morinellus in Finland.
Dotterel (Charadrius morinellus) Science Article 2 abstract The behaviour of a polyandrous female Dotterel was studied in 1970 at Varriotunturi, eastern Finnish Lapland (67degree 44’N, 29degree 37’E). Five days after the completion of her first clutch, a second one was started in which both parents shared the incubation duties. However, during the first week the […]
Habitat Use and Resource Overlap by Breeding Golden Ploversand Dotterels (Pluvialis apricaria, Charadrius morinellus)
Dotterel (Charadrius morinellus) Science Article 1 abstract This study describes their habitat use and resource overlap in an area of co-occur-rence in southern Norway, and analyzes their population densities, and aggression inrelation to predictions from the competitive exclusion principle. Ingvar Byrkjedal, J. Orn. 130, 1989: S. 197-206 Download article download full text (pdf)
Mate Guarding by Curlew Sandpipers (Calidris ferruginea) during Spring Migration in North Siberia
Curlew Sandpiper (Calidris ferruginea) Science Article 2 abstract In several wader species that breed in the High Arctic, birds appear in pairs immediately after arrival at their breeding grounds (see references in Meltofte, 1985). It is generallyunknown, however, whether pairs were formed shortly after arrival at the breeding site or if the birds paired somewhere […]
Growth, behaviour of broods and weather-related variation in breeding productivity of Curlew Sandpipers Calidris ferruginea.
Curlew Sandpiper (Calidris ferruginea) Science Article 1 abstract Growth and survival of chicks and movements of broods were studied in Curlew Sandpipers in N.E. Taimyr, Siberia, in 1991. Breeding was synchronised, 73% of 30 clutches hatching during 10-15 July. Nests were distributed clumped in dry frost-heaved tundra. Broods were tended by females only and moved […]
Habitat selection by breeding curlews (Numenius arquata) on farmland: the importance of grassland
Curlew (Numenius arquata) Science Article 1 abstract We examined habitat composition of territories, habitat use during foraging, and nest-site selection in the curlew Numenius arquata in two arable farmland areas in western Finland 1996-1997. Tall vegetation types, especially grassland, occurred more frequently within territories than expected by their availability. Habitat utilisation during foraging was significantly […]
Body-weight changes of egg-laying Curlews Numenius arquata as monitored by an automatic weighing system.
Curlew (Numenius arquata) Science Article 3 abstract The fluctuating body-weight of free living female Curlews during egg-laying is described. Weight data were collected using an automatic weighing system. Nests were placed on top of an electronic balance and the data were processed in a computer placed at a distance. The equipment is commercially available, thus […]
Measuring potential negative effects of traditionalharvesting practices on waterbirds: a case study withmigrating curlews
Curlew (Numenius arquata) Science Article 2 abstract Because of potential conflicts between commercial and conservation interests, onechallenge in coastal-area management is how to regulate harvesting practices incoastal areas without adversely affecting the survival of migratory waterbirds. Inmost Spanish intertidal areas of importance for shorebirds, managers haveconcentrated only on stock management of the shellfish species. Here, […]