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Article
Joop Jukema, Auteur ; Henk van de Wetering, Auteur ; Raymond H.G. Klaassen, AuteurLittle is known about the extent of primary moult in non-breeding second-calendar-year Swifts during summer in Europe. A sample of 352 Swifts of this age group was captured during May–July in a village in the Netherlands. Primary moult was almos[...]
Article
Joop Jukema, Auteur ; Popko Wiersma, AuteurWe measured primary moult scores of 1051 Eurasian Golden Plovers Pluvialis apricaria staging in pastures in The Netherlands from 1978 to 2011. We hypothesized that moult may have advanced due to earlier breeding resulting from global climate cha[...]
Article
Johan van Rhijn, Auteur ; Joop Jukema, Auteur ; Theunis Piersma, AuteurNuptial ornament diversity was studied in 1814 individual male Ruffs that were caught in their spring staging areas in Friesland, The Netherlands. Ornaments (hereafter called plumages) comprised of a ruff, two head tufts and facial wattles. Indi[...]
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Joop Jukema, Auteur ; Johan G. van Rhijn, Auteur ; Peter Olsson, Auteur ; Theunis Piersma, AuteurThe repair jobs that birds have to do to maintain high quality plumage take energy and time, so should be under intense selection. Recently, we have shown that secondary moult in the Eurasian Golden Plover Pluvialis apricaria is incomplete, irre[...]
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Yvonne I. Verkuil, Auteur ; Joop Jukema, Auteur ; Jennifer A. Gills, Auteur ; Natalia Karlionova, Auteur ; Johannes Melter, Auteur ; Jos C. E. W. Hooijmeijer, Auteur ; Theunis Piersma, AuteurCapsule F ae ders (males that are female look-alikes) associate with males rather than females, at several different spatial scales. Aims To test the prediction that the occurrence in space and time of f ae ders on ecological grounds should trac[...]
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Jeroen Reneerkens, Auteur ; Juliana B. Almeida, Auteur ; David B. Lank, Auteur ; Joop Jukema, Auteur ; Richard B. Lanctot, Auteur ; R. I. Guy Morrison, Auteur ; W. Irene C. Rijpstra, Auteur ; Douglas Schamel, Auteur ; Hans Schekkerman, Auteur ; Jaap S. Sinninghe Damste, Auteur ; Pavel S. Tomkovich, Auteur ; Diane M. Tracy, Auteur ; Ingrid Tulp, Auteur ; Theunis Piersma, AuteurPrevious studies have shown that preen wax composition in some sandpipers shifts from the usual monoesters to diesters during the breeding season, possibly to reduce the ability of mammalian predators to find nests using olfactory cues. To inves[...]
Article
Joop Jukema, AuteurDans Limosa (71(1) 1998)This paper deals with data from ringing of a small population (c. 20 individuals) of Moorhen living around a farm near a small village in Friesland province, northern part of The Netherlands. Birds were trapped and retrapped since the winter of [...]
Article
Sjoerd Duijns, Auteur ; Jacintha G. B. van Dijk, Auteur ; Bernard Spaans, Auteur ; Joop Jukema, Auteur ; Willem F. de Boer, Auteur ; Theunis Piersma, AuteurDifferent spatial distributions Of food abundance and predators may urge birds to make a trade-off between food intake and danger. Such a trade-off might be solved in different ways in migrant birds that either follow a time-minimizing or energy[...]
Article
Joop Jukema, AuteurDans Limosa (78(2) 2005)For studies of geographical variation and origin of Snow Buntings wintering in The Netherlands, 302 skins were studied from the collections of three Dutch and five foreign museums. During this study the author discovered several museum skins of [...]
Article
Joop Jukema, Auteur ; Erik J. Bunskoeke, Auteur ; Theunis Piersma, Auteur ; Ton Pieters, Auteur ; Anita Koolhaas, Auteur ; Johan G. van Rhijn, Auteur
Article
Yvonne I. Verkuil, Auteur ; Natalia Karlionova, Auteur ; Eldar N. Rakhimberdiev, Auteur ; Joop Jukema, Auteur ; Jan J. Wijmenga, Auteur ; Jos C. E. W. Hooijmeijer, Auteur ; PAVEL Pinchuk, Auteur ; Eddy Wymenga, Auteur ; Allan J. Baker, Auteur ; Theunis Piersma, AuteurThe fuelling performance of long-distance migrants at staging areas indicates local conditions and determines the viability of migration routes. Here we present a first case study where long-term fuelling performance was documented along two mig[...]
Article
Joop Jukema, Auteur ; John B. Dunning, Auteur ; Piet Vlas, Auteur ; Lauren Brierley, Auteur ; Paul Brooks, AuteurSeasonal variation in morphology may reflect the selective pressures experienced by migrating birds, especially for long-distance migrants such as shorebirds. We quantified variation in linear measurements, plumage scores, and body mass among se[...]
Article
Article
Sjoerd Duijns, Auteur ; Joop Jukema, Auteur ; Bernard Spaans, Auteur ; Peter van Horssen, Auteur ; Theunis Piersma, AuteurTwo populations of Bar-tailed Godwits Limosa lapponica occur along the East-Atlantic Flyway. The European population (L. I. lapponica) is supposed to breed in northern Scandinavia and has been suggested to only winter in Europe. The Afro-Siberia[...]
Article
Jeroen Reneerkens, Auteur ; Theunis Piersma, Auteur ; Joop Jukema, Auteur ; Petra de Goeij, Auteur ; Anneke Bol, Auteur ; Hans Meltofte, Auteur
Article
Theunis Piersma, Auteur ; Hans Meltofte, Auteur ; Joop Jukema, Auteur ; Jeroen Reneerkens, Auteur ; P. de Goeij, Auteur ; Welmoed Ekster, Auteur
Article
Joop Jukema, Auteur ; Henk van de Wetering, Auteur ; Jorge S. Gutiérrez, Auteur ; Theunis Piersma, Auteur
Article
Joop Jukema, Auteur ; Theunis Piersma, AuteurDans Limosa (77(1) 2004)We describe the existence of small-sized male Ruffs Philomachus pugnax with a female-like breeding plumage that may represent a third reproductive strategy within the complex mating system of this enigmatic and highly sexual dimorphic shorebird [...]
Article
Joop Jukema, Auteur ; Eddy Wymenga, Auteur ; Theunis Piersma, AuteurDans Limosa (74(1) 2001)During their northward migration Ruffs stop over in the province of Friesland in the northern part of The Netherlands. The central and southwestern part of this province is one of the major spring staging sites of Ruffs in Western Europe. In spr[...]
