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Documents disponibles écrits par cet auteur (10)
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Rapport
Royal Netherlands Institute for Sea Research NOIZ Texel (NLD) 40p+ann* NIOZ Report 2006-1
Article
B. Spaans, Auteur ; H. J. Blijleven, Auteur ; I. U. Popov, Auteur ; M. E. Rykhlikova, Auteur ; B. S. Ebbinge, AuteurDans Ardea (86(1) 1998)In an area north of the Pyasina delta in Taimyr (Russia), nest distribution, nest initiation and breeding success of Brent Geese Branta bernicla bernicla were studied in six successive summer seasons from 1990-1995 in relation to lemming and Arc[...]
Article
J. A. Van Gils, Auteur ; A. Dekinga, Auteur ; B. Spaans, Auteur ; W. K. Vahl, Auteur ; T. Piersma, Auteur1. When prey occur at high densities, energy assimilation rates are generally constrained by rates of digestion rather than by rates of collection (i.e. search and handle). As predators usually select patches containing high prey densities, rate[...]
Article
B. S. Ebbinge, Auteur ; B. Spaans, AuteurActual predation is rarely observed in the field, and therefore the role of predators is often severely underestimated. Species are limited in their distribution, which is caused not only by predation but also by the anti-predator behaviour that[...]
Article
B. Spaans, Auteur ; P. Postma, AuteurDans Ardea (89(3) 2001)On the Dutch Wadden Sea island Texel, spring-fattening Dark-bellied Brent Geese Branta bernicla fed almost exclusively inland on improved grasslands, whereas the remainder of the flyway population utilised coastal saltmarshes elsewhere in the Wa[...]
Article
S. Nebel, Auteur ; T. Piersma, Auteur ; J. A. Van Gils, Auteur ; A. Dekinga, Auteur ; B. Spaans, AuteurDans Ardea (88(2) 2000)During southward migration the Wadden Sea is the meeting place of Red Knots Calidris canutus of two subspecies that breed in either western Siberia (C. c. canutus) or north Greenland and north-east Canada (C. c. islandica), but the details of th[...]
Article
S. Nebel, Auteur ; T. Piersma, Auteur ; J. A. Van Gils, Auteur ; A. Dekinga, Auteur ; B. Spaans, AuteurDans Ardea (89(2) 2001)
Article
M. Green, Auteur ; T. Piersma, Auteur ; J. Jukema, Auteur ; P. de Goeij, Auteur ; B. Spaans, Auteur ; J. A. Van Gils, AuteurIn 1999 and 2000, 45 Bar-tailed Godwits Limosa lapponica were supplied with radio-transmitters during spring staging on the island Texel in the western Wadden Sea. With the use of Automatic Radio Tracking Stations (ARTS) on Texel and in south Sw[...]
Article
J. Leyrer, Auteur ; B. Spaans, Auteur ; T. Piersma, Auteur
Article
J. Leyrer, Auteur ; B. Spaans, Auteur ; M. Camara, Auteur ; T. Piersma, AuteurUsing automated and manual radio-telemetry and resightings of individual colour-ringed birds, we assessed the daily use of space of red knots Calidris canutus canutus at a tropical wintering area along the Sahara coast, the Banc d'Arguin in Maur[...]
