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Article
S. van Balen, Auteur ; V. Nijman, Auteur-headed Fruit-dove Ptilinopus porphyreus is a little-known, restricted-range species, endemic to the mountains of the Indonesian islands of Sumatra, Java and Bali. In the period 1981-2002 we conducted surveys throughout its range and compiled da[...]
Article
T. G. Prins, Auteur ; J. H. Reuter, Auteur ; A. O. Debrot, Auteur ; J. Wattel, Auteur ; V. Nijman, AuteurDans Ardea (97(2) 2009)We present an updated checklist of the birds of the islands of Aruba, Curacao and Bonaire, and the islets of Klein Curacao and Klein Bonaire, southern Caribbean, and compare this with earlier checklists (K.H. Voous, Stud. Fauna Curacao Carib. Is[...]
Article
S. van Balen, Auteur ; V. Nijman, Auteur ; R. Sozer, AuteurThe Javan Hawk-eagle Spizaetus bartelsi is endemic to the island of Java. Severe habitat fragmentation and small population size, aggravated by illegal hunting have put this rainforest species on the list of threatened bird species. Intensive se[...]
Article
C. S. Roselaar, Auteur ; T. G. Prins, Auteur ; M. Aliabadian, Auteur ; V. Nijman, AuteurThe incidence of hybridisation in birds differs greatly between orders and is expected to be low in orders comprising few species. The divers or loons (Gaviiformes) are a species-poor group in which apparent hybridisation has been reported infre[...]
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V. Nijman, AuteurA study of visible migration of raptors through the Dieng Mountains, Central Java, Indonesia, was based on six sites perpendicular to the axis of migration. At least 30 000 raptors migrated through the area annually over an 8-week period in Sep-[...]
Article
M. Aliabadian, Auteur ; C. S. Roselaar, Auteur ; V. Nijman, Auteur ; R. Sluys, Auteur ; M. Vences, Auteur
Article
E. Meijaard, Auteur ; V. Nijman, AuteurLazarus species, species that were thought to be extinct until found again, are of considerable public interest and attract major media coverage as they offer a glimmer of hope in a generally glum conservation world. This publicity could potenti[...]
Article
V. Nijman, Auteur ; S. van Balen, AuteurNatal dispersal and philopatry have rarely been studied in tropical forest raptors. Especially with respect to endangered species with fragmented distributions more knowledge of dispersal and age-related habitat preferences is needed for proper [...]
