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Crawford RJM, Sydeman WJ, Tom DB, Thayer JA, Sherley RB, Shannon LJ, Mcinnes AM, Makhado AB, Hagen C, Furness RW, Carpenter-Kling T, Saraux C 2022. Food limitation of seabirds in the Benguela ecosystem and management of their prey base.   Namibian Journal of Environment 6 (A) 1-13
Crawford RJM, Makhado AB, Whittington PA, Randall RM, Oosthuizen WH, Waller LJ 2015. A changing distribution of seabirds in South Africa—the possible impact of climate and its consequences. Frontiers in Ecology and the Environment Review Article
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A changing distribution of seabirds in South Africa_2015.pdf 2.47 MB
Hutchings L, Van der Lingen CD, Shannon LJ, Crawford RJM, Verheye HMS, Bartholomae CH, van der Plas AK, Louw D 2009. The Benguela Current: An ecosystem of four components. Progress in Oceanography 83 15 - 32
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Hutchings et al 2009 The Benguela in four parts.pdf 2.51 MB
Crawford RJM, Hemming M, Kemper J, Klages NTW, Randall RM, Underhill LG, Venter AD, Ward VL, Wolfaardt AC 2006. S24-2 Molt of the African penguin, Spheniscus demersus, in relation to its breeding season and food availability. Acta Zoologica Sinica 53 (Supplement) 444-447
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Crawford_2006_Acta_Zool_Sinica_Molt_Afrcn_Penguin.pdf 619.36 KB
Whittington PA, Randall RM, Randall BM, Wolfaardt AC, Crawford RJM, Klages NTW, Bartlett PA, Chesselet YJ, Jones R 2005. Patterns of movements of the African penguin in South Africa and Namibia. African Journal of Marine Science 27 (1) 215-229
Whittington PA, Randall RM, Crawford RJM, Wolfaardt AC, Klages NTW, Randall BM, Bartlett PA, Chesselet YJ, Jones R 2005. Patterns of immigration to and emigration from breeding colonies by African penguins. African Journal of Marine Science 27 (1) 205-213
David JHM, Curry P, Crawford RJM, Randall RM, Underhill LG, Meÿer MA 2003. Assessing conservation priorities in the Benguela ecosystem, South Africa: analysing predation by seals on threatened seabirds. Biological Conservation 114 (2) 289-292
Crawford RJM, David JHM, Shannon LJ, Kemper J, Klages NTW, Roux J-P, Underhill LG, Ward VL, Williams AJ, Wolfaardt AC 2001. African penguins as predators and prey - coping (or not) with change. South African Journal of Marine Science 23 (1) 435-447
Shannon LJ, Crawford RJM 1999. Management of the African Penguin Spheniscus demersus – insights from modelling. Marine Ornithology 27 119-128
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Attachment Size
Shannon_1999_Marine_Ornith_penguins.pdf 455.11 KB
Crawford RJM, Williams AJ, Hofmeyr JH, Klages NTW, Randall RM, Cooper J, Dyer BM, Chesselet Y 1995. Trends of African Penguin Spheniscus demersus populations in the 20th-century. South African Journal of Marine Science 16 (1) 101-118
Crawford RJM, Williams AJ, Randall RM, Randall BM, Berruti A, Ross GJB 1990. Recent population trends of Jackass Penguins Spheniscus demersus off southern Africa. Biological Conservation 52 (3) 229 – 243

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