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Article
H. Dieter Oschadleus, Auteur ; Philipp H. Boersch-Supan, AuteurTwo photographic records of a Yellow Bishop Euplectes capensis apparently sunning, at the West Coast National Park, South Africa, are described. There are very few records of sunning in weavers, and this is the first record for this species.
Article
H. Dieter Oschadleus, AuteurSeveral raptor species nest on top of large weaver nests. These weaver nests are usually sited in trees, but 11.7% of Red-billed Buffalo-Weaver Bubalornis niger and 25.7% of Sociable Weaver Philetairus socius nests occur on man-made structures. [...]
Article
Ida E. Bailey, Auteur ; Kate V. Morgan, Auteur ; H. Dieter Oschadleus, Auteur ; Stacy L. DeRuiter, Auteur ; Simone L. Meddle, Auteur ; Susan D. Healy, AuteurBuilding a structurally robust nest is crucial for reproductive success in many birds. However, we know little about the criteria birds use to select material or where they go to collect it. Here we observed the material collection of male Cape [...]
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Doug M. Harebottle, Auteur ; H. Dieter Oschadleus, Auteur
Article
Bo T. Bonnevie, Auteur ; H. Dieter Oschadleus, AuteurDans Ostrich (83(2) 2012)Primary wing moult patterns in southern African brood-parasitic viduines were compared with those of their estrildid hosts. We searched for similarities in the timing and duration of moult within these closely related species potentially arising[...]
Article
H. Dieter Oschadleus, Auteur
Article
H. Dieter Oschadleus, AuteurThe Red-billed Quelea Quelea quelea is a serious pest of agricultural crops throughout most of sub-Saharan Africa. Since the 1980s, it has expanded its range into the Eastern Cape and Western Cape, South Africa, facilitated by changes in agricul[...]
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H. Dieter Oschadleus, Auteur ; Riaz Aumeeruddy, Auteur ; Sjouke A. Kingma, AuteurDans Ostrich (84(1) 2013)The Seychelles Fody Foudia sechellarum, which occurs on six islands in the Seychelles, has been well ringed over several decades in order to obtain population estimates for the species, and morphological descriptions and measurements. Annual sur[...]
Article
H. Dieter Oschadleus, Auteur
Article
Yvonne C. Collingham, Auteur ; Brian Huntley, Auteur ; Res Altwegg, Auteur ; Phoebe Barnard, Auteur ; Oliver S. Beveridge, Auteur ; Richard D. Gregory, Auteur ; Lucy R. Mason, Auteur ; H. Dieter Oschadleus, Auteur ; Robert E. Simmons, Auteur ; Stephen G. Willis, Auteur ; Rhys E. Green, AuteurEstimates of annual survival rates of birds are valuable in a wide range of studies of population ecology and conservation. These include modelling studies to assess the impacts of climatic change or anthropogenic mortality for many species for [...]
Article
Adrian J. F. K. Craig, Auteur ; Bo T. Bonnevie, Auteur ; H. Dieter Oschadleus, AuteurDans Ostrich (81(2) 2010)Using the SAFRING database and the Underhill-Zucchini model of primary moult, we analysed the timing of wing moult in Southern Red Bishops Euplectes orix in relation to sex and geographical region. Birds from the winter rainfall region in the so[...]
Article
Dane M. Paijmans, Auteur ; Sarah Catto, Auteur ; H. Dieter Oschadleus, AuteurLongevity and displacement records aid in the understanding of animal senescence and the possible range of a species. Within wild populations this information is infrequent with most longevity reports being based on captive individuals and displ[...]
Article
Jordan-Laine Calder, Auteur ; Graeme S. Cumming, Auteur ; Kristine Maciejewski, Auteur ; H. Dieter Oschadleus, AuteurUrbanisation often has profound impacts on ecological processes. Management of these impacts is central to urban conservation efforts. We used data from 6591 individually ringed weaver birds from 42 ringing locations to investigate the influence[...]
