Bibliografía+y+fuentes+consultadas.

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Crawford, R.J.M., Shannon, L.J., Whittington, P.A. & Murison, G. submitted. Factors influencing growth of the African Penguin colony at Boulders, South Africa, 1985-1999. //South African Journal of Marine Science//.=====

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Crawford, R.J.M., Williams, A.J., Hofmeyr, J.H., Klages, N.T.W., Randall, R.M., Cooper, J., Dyer, B.M. and Chesselet, Y. 1995a. Trends of African Penguin //Spheniscus demersus// populations in the 20th century. //South African Journal of Marine Science// 16: 101-118.=====

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Cordes, I., Crawford, R.J.M., Williams, A.J., Dyer, B.M. 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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David, J. H. M., Cury, P., Crawford, R.J.M., Randall, R. M., L.G. Underhill, M.A. Meyer, M. A.. 2003. Assessing conservation priorities in the Benguela ecosystem, South Africa: analysing predation by seals on threatened seabirds. //Biological Conservation// 114: 289–292.=====

Ellis, S., Croxal, J.P., Cooper, J. 1996. PENGUIN Conservation Assessment and Management Plan (PENGUIN CAMP). Avian Demography Unit. Department of Statistical Sciencies. University of Cape Town.

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Randall, R.M., Randall, B.M., Cooper, J., La Cock, G.D. and Ross, G.J.B. 1987. Jackass Penguin //Spheniscus demersus// movements, inter-island visits and settlement. //Journal of Field Ornithology// 58: 445-455.=====

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Randall, R.M., Randall, B.M. and Compagno, L.J.V. 1988. Injuries to Jackass Penguins (//Spheniscus demersus//): evidence for shark involvement. //Journal of the Zoological Society of London.// 214: 589-599.=====

Shanon, L.J. Crawford, R. J. M. 1999. Management of the African Penguin //Spheniscus demersus// – insights from modelling. //Marine Ornithology// 27: 119–128.

Villiers, M. 2002. Effect of a storm on breeding African Penguins Spheniscus demersus at Foxy Beach, Boulders Penguin Colony, Simon’s Town. Bird Numbers 11: 7-9.

Whittington, P., Crawford, R.J.M., Huyser, O., Oschadleus, D., Randall, R., Ryan, P., Shannon, L., Woolfardt, A., Cooper, J., Lacy, R. and S. Ellis (Eds.) 2000. //African Penguin Population and Habitat Viability Assessment. Final Report.// IUCN/SSC Conservation Breeding Specialist Group: Apple Valley, MN.

Wilkinson, C. P., Esmonde-White, D. A., Underhill, L. G., Whittington, P.A. 1999. African penguins Spheniscus demersus along the KwaZulu-Natal coast, 1981-1999. Marine Ornithology 27: 111-113.

Wolfaardt, A. C., Underhill, L. G., Crawford R. J. M., Klages, N. T. W. 2001. Results of the 2001 census of African penguins //Spheniscus demersus// in South Africa: first measures of the impact of the Treasure oil spill on the breeding population. //Trans. Royal Society South Africa// 56: 45-49.