| Titre : | Ostrich 90(2) - May, 2019 |
| Type de document : | Bulletin |
| Paru le : | 01/05/2019 |
Dépouillements
Article
Peter G. Ryan, Auteur ;
Ben J. Dilley, Auteur
We report that some 10% of Tristan Thrushes Turdus eremita on the coast at Inaccessible Island feed extensively on marine invertebrates (mainly crustaceans), despite lacking functional salt glands. Such birds regularly drink from freshwater spri[...]
Article
Robin M. Little, Auteur ;
Rene A. Navarro, Auteur
Some invasive species are known to compete with and even displace indigenous species. Two Accipiter species historically indigenous to eastern South Africa have colonised the Cape Peninsula in the south-west of the country and have become sympat[...]
Article
Corey Jeal, Auteur ;
Vonica Perold, Auteur ;
Samantha Ralston-Paton, Auteur ;
Peter G. Ryan, Auteur
This study assesses bird and wildlife mortality and changes in bird species communities at a 50 MW utility-scale concentrated solar power parabolic trough facility in South Africa. The facility was searched for evidence of large vertebrate morta[...]
Article
Kasper Thorup, Auteur ;
Iben Hove Sørensen, Auteur ;
Mikkel Willemoes, Auteur ;
Mathilde Lerche-Jørgensen, Auteur ;
Jon Fjeldså, Auteur ;
Anders P. Tøttrup, Auteur ;
Erik Mandrup Jacobsen, Auteur ;
Andrew H. Reeve, Auteur ;
Robert Oteng-Appau, Auteur ;
Augustus Asamoah, Auteur ;
Thomas Lehmberg, Auteur
Little is known about the variation within and among species of long-distance migrants in behavioural strategies and habitat choice on their non-breeding grounds. We report results from regular ringing operations carried out during the winter se[...]
Article
Tshifhiwa G. Mandiwana-Neudani, Auteur ;
Robin M. Little, Auteur ;
Timothy M. Crowe, Auteur ;
Rauri CK Bowie, Auteur
Afro-Asiatic perdicine galliform birds, commonly and inconsistently referred to as francolins, spurfowls and partridges, have contentious taxonomic and phylogenetic histories. In a widely followed monograph, Hall combined two putative monophylet[...]
Article
Kate F. Carstens, Auteur ;
Reshma Kassanjee, Auteur ;
Robin M. Little, Auteur ;
Peter G. Ryan, Auteur ;
Philip AR Hockey, Auteur
Dispersal is of ecological and evolutionary importance for population biology because it affects a species’ ability to expand its range, to colonise new favourable habitats and to increase the likelihood of population persistence. Male birds are[...]
Article
Maxwell K. Boakye, Auteur ;
Edward D. Wiafe, Auteur ;
Meyir Y. Ziekah, Auteur
Vultures form an important ingredient used by traditional medicinal practitioners for the preparation of their therapeutic remedies. The aim of this study was to determine the vulture body parts used for alleviating human ailments by traditional[...]
Article
Melissa A. Whitecross, Auteur ;
Ernst F. Retief, Auteur ;
Hanneline A. Smit-Robinson, Auteur
Knowledge of the dispersal behaviour of southern Africa’s juvenile Secretarybirds Sagittarius serpentarius was previously limited to a small number of ring recoveries (n = 4) in South Africa. From 2012 to 2015, 10 GSM-GPS solar trackers were fit[...]
Article
Johann H. van Niekerk, Auteur
This paper describes the plumage and morphology development of 11 age classes of Red-necked Spurfowl Pternistis afer to assist with field observations. Sixteen spurfowl were marked with coloured leg rings in the Cannon Rocks Holiday Resort, East[...]
