Détail de l'auteur
Documents disponibles écrits par cet auteur (5)
Ajouter le résultat dans votre panier Affiner la recherche
Article
Gerard Malan, Auteur ; Marco Heimstadt, AuteurThe Pied Kingfisher Ceryle rudis is a fishing kingfisher that employs two hunting modes. The bird can either hunt from a perch or hover and then dive into the water. The former method is energetically cheap but limits prey searching to the area [...]
Article
Arjun Amar, Auteur ; Ann Koeslag, Auteur ; Gerard Malan, Auteur ; Mark Brown, Auteur ; Erin Wreford, AuteurThe morph ratio distribution in polymorphic species often varies clinally, with a gradual change in morph ratios across the distributional range of the species. In polymorphic bird populations, clinal variation is rarely quantified. We describe [...]
Article
Gerard Malan, Auteur ; Eleen Strydom, Auteur ; Susanne Shultz, Auteur ; Graham Avery, AuteurThe aim of this study was to investigate the species composition of prey caught in the forest, savanna and emerging habitats in which African Crowned Eagles Stephanoaetus coronatus breed in KwaZulu-Natal province, South Africa. At the 17 nest si[...]
Article
Gerard Malan, AuteurThis study investigated whether Southern Pale Chanting Goshawks Melierax canorus that nest in the low woody vegetation of the and Little Karoo reduce nest predation by selecting nest trees and sites that are less accessible to and conspicuous fo[...]
Article
Gerard Malan, Auteur ; Deborah A. Hagens, Auteur ; Quentin A. Hagens, AuteurThis study investigates the breeding success of two tropical seabirds that exploit dissimilar nesting habitats on Cousine Island in the Seychelles archipelago, the White Tern Gygis alba and the White-tailed Tropicbird Phaethon lepturus, which ne[...]
