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Year-round territoriality in long-lived birds: rethinking the concept of carrying capacity
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Douglas Loewenthal --- , Dane M Paijmans --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- ,Adult African Black Oystercatchers Haematopus moquini are sedentary and territorial year round, with juveniles expressing strong natal philopatry. At four South African study sites (two mainland and two islands) breeding numbers more than doubled between the late 1970s/early 1980s and... -
The reproductive biology of an open-water spawning Lake Malawi cichlid, Copadichromis chrysonotus
Item type: Journal Article • Journal: African Zoology • Authors: Lance W. Smith --- Research Officer, MalawiCopadichromis chrysonotus is a zooplanktivorous cichlid member of the diverse fish community inhabiting Lake Malawi’s rocky, littoral habitat. Like most Lake Malawi cichlids, this species’ reproductive strategy is based on maternal mouthbrooding, but it is the only littoral species known... -
Asymmetric interspecific territorial competition over food resources amongst Lake Malawi cichlid fishes
Item type: Journal Article • Journal: African Zoology • Authors: Atsushi Maruyama --- Faculty of Science and Technology, Ryukoku University, Japan Bosco Rusuwa --- Department of Biology, Malawi Masahide Yuma --- Faculty of Science and Technology, Ryukoku University, JapanThe rock-dwelling cichlids in Lake Malawi comprise the most diverse freshwater fish community in the world. Individuals frequently interact with heterospecifics through feeding territoriality. Underwater observations and experiments were conducted to examine interspecific variation in the frequencies of territorial behaviour... -
To honk or to hiss: uncovering call complexity in the Egyptian Goose Alopochen aegyptiaca
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Tess Gridley --- , South Africa Courtney EC Gardiner --- , South AfricaEgyptian Geese Alopochen aegyptiaca are distributed across most of Africa. Their calls dominate the soundscape of many urban areas, yet their acoustic behaviour is poorly documented or understood. Using acoustic recordings made across a range of behavioural contexts, groups sizes... -
Foraging behaviour and use of space in the Graceful Crag Lizard, Pseudocordylus capensis: life on large rock surfaces
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: DahnéA. Lanse Van Rensburg --- University of Stellenbosch, South Africa P. Le. Fras N. Mouton --- University of Stellenbosch, South AfricaThe lizard family Cordylidae has been classified as a clade of classical ambush foragers. Two species, Platysaurus broadleyi and Pseudocordylus capensis, however, display much greater movement rates during activity than other cordylids. Whereas the foraging behaviour ofP. broadleyi is now...