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Griffiths CL, van Sittert L, Best PB, Brown AC, Clark BM, Cook PA, Crawford RJM, David JHM, Davies BR, Griffiths MH, Hutchings K, Jerardino A, Kruger N, Lamberth S, Leslie RW, Melville-Smith R, Tarr R, Van der Lingen CD 2004. Impacts of human activities on marine animal life in the Benguela: A historical overview. Oceanography and Marine Biology: An Annual Review 42 303-392

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Attachment	Size
Impacts of human activities on marine animal life in the Benguela_A historical overview.pdf	1.86 MB

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

Website link:http://www.sciencedirect.com/science/article/pii/S0006320703000181

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

Website link:http://www.ingentaconnect.com/content/nisc/sajms/2001/00000023/00000001/art00032

Cordes I, Crawford RJM, Williams AJ, Dyer BM 1999. Decrease of African Penguins at the Possession Island group, 1956-1995: contrasting trends for colonial and solitary breeders. Marine Ornithology 27 129-138

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Cordes_1999_Marine_Ornithology_27_129-138.pdf	105.01 KB

Crawford RJM, Dyer BM, Cordes I, Williams AJ 1999. Seasonal pattern of breeding, population trend and conservation status of bank cormorants Phalacrocorax neglectus off south western Africa. Biological Conservation 87 (1) 49-58

Website link:http://www.sciencedirect.com/science/article/pii/S0006320798000421

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

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Attachment	Size
Trends of African Penguin Spheniscus demersus populations in the 20th_century.pdf	1.28 MB

Crawford RJM, Ryan PG, Williams AJ 1991. Seabird consumption and production in the Benguela and Western Agulhas ecosystems. South African Journal of Marine Science 11 357-375

Website link:http://www.ingentaconnect.com/content/nisc/sajms/1991/00000011/00000001/art00020;jsessionid=j6n95e9s5ae3.alexandra

Cooper J, Crawford RJM, Suter W, Williams AJ 1990. Distribution, population-size and conservation of the Swift Tern Sterna bergii in southern Africa. Ostrich: Journal of African Ornithology 61 (1-2) 56 – 65

Website link:http://www.tandfonline.com/doi/abs/10.1080/00306525.1990.9633939#.VHsW62ctBHg

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

Website link:http://www.sciencedirect.com/science/article/pii/000632079090128C

Williams AJ, Steele WK, Cooper J, Crawford RJM 1990. Distribution, population-size and conservation of Hartlaub's Gull Larus hartlaubii. Ostrich: Journal of African Ornithology 61 (1-2) 66 – 76

Website link:http://www.tandfonline.com/doi/abs/10.1080/00306525.1990.9633941#.VHL6-1ItBHg

Crawford RJM, David JHM, Williams AJ, Dyer BM 1989. Competition for space: recolonizing seals displace endangered endemic seabirds off Namibia. Biological Conservation 48 (1) 59-72

Website link:http://www.sciencedirect.com/science/article/pii/0006320789900591

Crawford RJM, Williams AJ, Crawford PB 1986. A note on mortality of seabirds off western southern Africa, October 1985–February 1986. South African Journal of Marine Science 4 (1) 119-123

Website link:http://www.tandfonline.com/doi/abs/10.2989/025776186784461828#.VGXBClItBHg

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