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Article
Alison Johnston, Auteur ; Amanda D. Rodewald, Auteur ; Matt Strimas-Mackey, Auteur ; Tom Auer, Auteur ; Wesley M. Hochachka, Auteur ; Andrew N. Stillman, Auteur ; Courtney L. Davis, Auteur ; Viviana Ruiz-Gutiérrez, Auteur ; Adriaan M. Dokter, Auteur ; Eliot T. Miller, Auteur ; Orin Robinson, Auteur ; Shawn Ligocki, Auteur ; Lauren Oldham Jaromczyk, Auteur ; Cynthia Crowley, Auteur ; Christopher L. Wood, Auteur ; Daniel Fink, AuteurEfforts to address declines of North American birds have been constrained by limited availability of fine-scale information about population change. By using participatory science data from eBird, we estimated continental population change and r[...]
Article
Kenneth V. Rosenberg, Auteur ; Adriaan M. Dokter, Auteur ; Peter J. Blancher, Auteur ; John R. Sauer, Auteur ; Adam C. Smith, Auteur ; Paul A. Smith, Auteur ; Jessica C. Stanton, Auteur ; Arvind Panjabi, Auteur ; Laura Helft, Auteur ; Michael Parr, Auteur ; Peter P. Marra, AuteurBecause birds are conspicuous and easy to identify and count, reliable records of their occurrence have been gathered over many decades in many parts of the world. Drawing on such data for North America, Rosenberg et al. report wide-spread popul[...]
Article
Cecilia Nilsson, Auteur ; Johan Bäckman, Auteur ; Adriaan M. Dokter, AuteurAmong the many unique flight behaviours of Common Swifts Apus apus, the most puzzling may be their ascents to high altitudes during both dusk and dawn. Twilight ascents have been hypothesized to be functionally related to information acquisition[...]
Article
Nadja Weisshaupt, Auteur ; Adriaan M. Dokter, Auteur ; Juan Arizaga, Auteur ; Mercedes Maruri, AuteurCapsule: Nocturnal passerine migration patterns were studied by a network of weather radars within the East-Atlantic flyway providing large-scale information on the effect of a geographical barrier.Aims: The aim of this study was to obtain a lar[...]
Article
Michael U. Kemp, Auteur ; Judy Shamoun-Baranes, Auteur ; Adriaan M. Dokter, Auteur ; Emiel van Loon, Auteur ; Willem Bouten, AuteurBy altering its flight altitude, a bird can change the atmospheric conditions it experiences during migration. Although many factors may influence a bird's choice of altitude, wind is generally accepted as being the most influential. However, th[...]
Article
Bruno J. Ens, Auteur ; Roeland A. Bom, Auteur ; Adriaan M. Dokter, Auteur ; Kees Oosterbeek, Auteur ; Jan de Jong, Auteur ; Willem Bouten, AuteurThis paper reports on new discoveries and new possibilities due to the deployment of the UvA Bird Tracking System (UvA-BiTS; Bouten et al. 2013) in our investigations of the behavioural ecology of Oystercatchers. This GPS tracker is powered by s[...]
Article
Adriaan M. Dokter, Auteur ; Barwolt S. Ebbinge, AuteurThe year-round itinerary for a Dark-bellied Brent Goose Branta b. bernicla is described for a bird fitted with a GPS tracking device at Terschelling Island, the Netherlands, in spring 2012. Spring migration commenced when the bird left the Dutch[...]
