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Documents disponibles écrits par cet auteur (6)
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Article
N. M. Lee, Auteur ; P. A. R. Hockey, AuteurSeveral studies have attempted to calculate the energy intake rates of shorebirds. One method of doing this involves estimating the size of prey items in relation to the bird's bill length, and then using an average bill length to convert this v[...]
Article
B. G. Visser, Auteur ; P. A. R. Hockey, AuteurThree pairs of Knysna Warblers were monitored on the south-eastern slopes of Table Mountain during the 2000 breeding season. Males displayed alone on territories until the second half of August, when females arrived. Nest-building (8 days) and i[...]
Article
A. P. Martin, Auteur ; P. A. R. Hockey, Auteur
Article
P. A. R. Hockey, Auteur ; W. A. Wilson, AuteurMarine terns breed between 80degreesN and 70degreesS, making them a suitable group for examining links between latitude and reproductive traits. We investigated such traits for 34 taxa in seven genera, using analyses of residuals to correct for [...]
Article
P. A. R. Hockey, Auteur ; J. K. Turpie, Auteur ; E. E. Plaganyi, Auteur ; T. E. Phillips, AuteurThe foraging behaviour of five plover species was studied at Mida Creek. Kenya to assess how foraging behaviour is influenced by bird body size and:or diet. All five plovers had functionally identical instantaneous foraging behaviour, but the pr[...]
Article
P. A. R. Hockey, Auteur ; J. K. Turpie, Auteur ; C. R. Velasquez, Auteur ; P. FitzPatrick, AuteurDeferred northward migration by young waders has been ascribed to the "risks of long-distance migration", but the nature of these risks has not been explored. We suggest that the low foraging proficiency of young waders is an important factor in[...]
