Détail de l'auteur
Documents disponibles écrits par cet auteur (10)
Ajouter le résultat dans votre panier Affiner la recherche
Article
Penn Lloyd, Auteur ; Bernhard D. Frauenknecht, Auteur ; Morné A. du Plessis, Auteur ; Thomas E. Martin, AuteurWe studied the breeding biology of the south temperate Cape Penduline Tit (Anthoscopus minutus) in order to compare its life history traits with those of related north temperate members of the family Remizidae, namely the Eurasian Penduline Tit [...]
Article
Alex D. Ball, Auteur ; René E. van Dijk, Auteur ; Penn Lloyd, Auteur ; Ákos Pogány, Auteur ; Deborah A. Dawson, Auteur ; Steve Dorus, Auteur ; Rauri C. K. Bowie, Auteur ; Terry Burke, Auteur ; Tamás Székely, AuteurIn most passerine birds, individuals attempt to maximize their fitness by providing parental care while also mating outside their pair bond. A sex-specific trade-off between these two behaviours is predicted to occur, as the fitness benefits of [...]
Article
Penn Lloyd, Auteur ; Thomas E. Martin, Auteur ; Andrew Taylor, Auteur ; Anne Braae, Auteur ; Res Altwegg, Auteurmong cooperatively breeding species, helpers are hypothesised to increase the survival of breeders by reducing breeder workload in offspring care and increased group vigilance against predators. Furthermore, parental nepotism or other benefits o[...]
Article
Jason B. Searle, Auteur ; J. Blair Prince, Auteur ; David Stewart, Auteur ; Penn Lloyd, AuteurMonitoring of breeding success is important for the effective management of beach-nesting shorebirds, which are vulnerable to impacts of human recreational disturbance and predation by introduced or superabundant native predators. We examined th[...]
Article
Penn Lloyd, Auteur ; Thomas E. Martin, AuteurSlow life histories are characterized by high adult survival and few offspring, which are thought to allow increased investment per offspring to increase juvenile survival. Consistent with this pattern, south temperate zone birds are commonly lo[...]
Article
Penn Lloyd, Auteur
Article
Diet and time-activity budget of White-backed Mousebirds Colius colius in south-western South Africa
Carlos Bosque, Auteur ; Carlos D. Bosque, Auteur ; Penn Lloyd, AuteurDans Ostrich (88(3) 2017)Mousebirds (Coliiformes) are unusual in having an exclusively vegetarian diet that includes substantial foliage and by using huddling and sunning to assist thermoregulation. Although previous studies have identified plant species and plant parts[...]
Article
Penn Lloyd, Auteur ; W. Andrew Taylor, Auteur ; Morne A. du Plessis, Auteur ; Thomas E. Martin, AuteurIn many cooperatively-breeding species, the presence of one or more helpers improves the reproductive performance of the breeding pair receiving help. Helper contributions can take many different forms, including allo-feeding, offspring provisio[...]
Article
Richard A. Noske, Auteur ; Yeni A. Mulyani, Auteur ; Penn Lloyd, AuteurNest predation rates often depend on how well a nest is concealed. Many tropical birds build their nests over water and/or build large pendant nests that closely resemble clumps of vegetation or flood debris, behaviours that are universally assu[...]
Article
Penn Lloyd, Auteur ; Fitsum Abadi, Auteur ; Res Altwegg, Auteur ; Thomas E. Martin, AuteurLife history theory predicts an inverse relationship between annual adult survival and fecundity. Globally, clutch size shows a latitudinal gradient among birds, with south temperate species laying smaller clutches than north temperate species, [...]
