Browsing by Author "Dyer, B M"

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African penguins Spheniscus demersus recolonise a formerly abandoned nesting locality in Namibia

Author: Roux, J-P ; Kemper, J ; Bartlett, P A ; Dyer, B M ; Dundee, B L Date: 2003 African Penguins Spheniscus demersus disappeared from Neglectus Islet probably between 1885 and 1952. Visiting birds were only noted rarely before the mid 1990s, but since 1995 penguin numbers on the islet have increased and breeding was first ... Read more
Mass on arrival of rockhopper penguins at Marion Island correlated with breeding success

Author: Crawford, R J M ; Makhado, A B ; Upfold, L ; Dyer, B M Date: 2008 For rockhopper penguins Eudyptes chrysocome at Marion Island, there were significant decreases over time in the numbers breeding and breeding success at three monitored colonies from 1985/1986 to 2006/2007, and in mass on arrival for breeding ... Read more
Populations of surface-nesting seabirds at Marion Island, 1994/5-2002/3

Author: Crawford, R J M ; Cooper, J ; Dyer, B M ; Greyling, M D ; Klages, N T W ; Ryan, P G ; Petersen, S L ; Underhill, L G ; Upfold, L ; Wilkinson, W ; De Villiers, M S ; Du Plessis, S ; Du Toit, M ; Leshoro, T M ; Makhado, A B ; Mason, M S ; Merkle, D ; Tshingana, D ; Ward, V L ; Whittington, P A Date: 2003 During the 1990s and early 2000s, populations of surface-nesting seabirds at Marion Island showed different trends, but for the majority of species numbers decreased. Reduced numbers of gentoo penguins Pygoscelis papua, eastern rockhopper ... Read more

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