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Nest position and type affect predation rates of artificial avian nests in the tropical lowland forest on Mount Cameroon
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Eric Djomo Nana --- Department of Ecology, Faculty of Science, Czech Republic Ondřej Sedláček --- Department of Ecology, Faculty of Science, Czech Republic Jana Vokurková --- Department of Ecology, Faculty of Science, Czech Republic David Hořák --- Department of Ecology, Faculty of Science, Czech RepublicNest predation is the leading cause of reproductive failure in birds and thus it shapes their life history strategies. Intensities of nest predation appear to differ among nest locations and types in both temperate and tropical regions. However, there is... -
Reproductive ecology and egg production of the radiated tortoise (Geochelone radiata) in southern Madagascar
Item type: Journal Article • Journal: African Zoology • Authors: Thomas E.J. Leuteritz --- Department of Biology, U.S.A. Rollande Ravolanaivo --- Department of Animal Biology, MadagascarWe studied reproduction of wild Geochelone radiata at the Cap Sainte Marie Special Reserve in southwestern Madagascar to gain insight into life history traits related to reproductive success. Reproductive behaviour was observed over two nesting seasons and egg production was... -
The efficacy of a modified Berlese funnel method for the extraction of ectoparasites and their life stages from the nests of the African Penguin Spheniscus demersus
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Marcela PA Espinaze --- Department of Conservation Ecology and Entomology, South Africa Cang Hui --- Department of Mathematical Sciences, South Africa Lauren Waller --- Southern African Foundation for the Conservation of Coastal Birds, South Africa Sonja Matthee --- Department of Conservation Ecology and Entomology, South AfricaThe Berlese funnel method, and its variations, is commonly used for the extraction of arthropods from various substrates such as nest material. However, little is known about its effectivity in extracting ectoparasites from penguin nests. This study aimed to assess... -
Variation in colony sizes of weavers from a citizen science project
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Hans-Dieter Oschadleus --- , South AfricaThe project PHOWN (PHOtos of Weaver Nests) is a citizen science project that collects breeding distributions and colony sizes of weaverbirds (Ploceidae) globally. PHOWN began in mid-2010 and has collected nearly 30 000 records in 9.5 years. This paper provides... -
Double-brooding in Southern Yellow-billed Hornbills Tockus leucomelas
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Mark Stanback --- , United States David Millican --- , United States William Versfeld --- , Namibia Matti Nghikembua --- , Namibia Laurie Marker --- , Namibia John Mendelsohn --- , NamibiaDouble-brooding is an avian breeding strategy where birds produce at least two successful nests in a single season. Double-brooding is seen most frequently in small passerines for which the breeding season is lengthy enough that they can easily fit in... -
Breeding ecology of the Cream-coloured Courser Cursorius cursor (Glareolidae) on semi-arid grazing land in Souss-Massa National Park, southwestern Morocco
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Yassine Teyar --- Ibn Zohr University, Morocco Dimitri Giunchi --- University of Pisa, Italy Mohamed El Bekkay --- , Morocco Widade Oubrou --- , Morocco Mohammed Znari --- Cadi Ayyad University, Morocco Mohamed Aourir --- Ibn Zohr University, MoroccoThis study presents the first data on the breeding ecology of the Cream-coloured Courser Cursorius cursor (family Glareolidae) in a grazed semi-arid steppe in southwestern Morocco. The egg-laying occurred between early May and July, with most nests found between May... -
Highly variable breeding phenology in an arid region colonial cooperative breeder, the Sociable Weaver Philetairus socius
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Pietro B D’Amelio --- Université Paris-Saclay and Centre National de la Recherche Scientifique (CNRS), Institut des Neurosciences Paris-Saclay, France Nicolas J Silva --- , France Liliana R Silva --- University of Porto, Portugal André C Ferreira --- University of Zurich, Switzerland Franck Theron --- University of Porto, Portugal Claire Doutrelant --- , France Rita Covas --- University of Porto, PortugalDescribing breeding phenology (the timings of reproductive events) is central for studying individual fitness and population dynamics. While fundamental differences in breeding strategies between different biomes (e.g. tropics and temperate regions) have long been identified, detailed descriptions based on long-term... -
First record of a large breeding colony of the Lesser Black-backed Gull Larus fuscus in mainland Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Mohamed Radi --- , Morocco El-Mustapha Laghzaoui --- Cadi Ayyad University, Morocco Aouissa Salek --- , Morocco Rhimou El Hamoumi --- Hassan II University of Casablanca, Morocco Mohamed Dakki --- , Morocco Abdeljebbar Qninba --- Scientific Institute, Mohamed V University, Morocco El Hassan El Mouden --- Cadi Ayyad University, Morocco Mohamed Aourir --- Ibn Zohr University, MoroccoA breeding colony of the Lesser Black-backed Gull Larus fuscus was discovered at the Khenifiss lagoon on the Atlantic coast of southern Morocco. In June 2022, 222 nests were counted and, in 2023, 62 nests were present. Nests were built...