Page 580 - Atlas Sea Birds Ver1

Year Possession and Pomona islands Bird Island, Lambert's Bay Malgas Island Marcus Island Jutten Island Vondeling Island Dassen Island Seal Island, False Bay Dyer Island Total

1932
1933
1934
1935 177.977 177.977
1936
1937
1938 105.700 105.700
1939 109.550 109.550
1940 2.700 213.800 0.900 217.400
1941 0.500 15.200 247.364 42.500 305.564
1942
1943 1.152 174.912 176.064
1944 160.434 160.434
1945
1946 135.000 135.000
1947 129.888 129.888
1948 97.128 97.128
1949
1950
1951 148.608 148.608
1952 158.856 158.856
1953
1954 148.220 148.220
1955
1956 4.512 126.816 131.328
1957 98.640 98.640
1958
1959 1.368 79.440 80.808
1960
1961
1962
1963
1964 47.160 47.160
1965 11.856 43.728 55.584
1966 12.313 12.313
1967 3.600 10.056 13.656
Total 4.512 73.600 32.800 293.230 1774.408 586.860 16311.590 11.000 217.180 23373.330

References
Crawford RJM, Underhill LG, Upfold L, Dyer BM. 2007. An altered Shannon LJ, Crawford RJM. 1999. Management of the African
carrying capacity of the Benguela upwelling ecosystem for Penguin Spheniscus demersus – insights from modelling.
African penguins (Spheniscus demersus). ICES Journal of Marine Ornithology 27: 119–128.
Marine Science 64: 570–576. Shelton PA, Crawford RJM, Cooper J, Brooke RK. 1984.
Kearton C. 1931. The Island of Penguins. Longmans, Green and Distribution, population size and conservation of the Jackass
Co., London. Penguin Spheniscus demersus. South African Journal of
Rand RW. 1963. The biology of guano-producing seabirds. 4. Marine Science 2: 217–257.
Composition of colonies on the Cape islands. Investigational Siegfried WR, Crawford RJM. 1978. Jackass Penguins, eggs
Report Division of Sea Fisheries South Africa 43: 1–32. and guano – diminishing resources at Dassen Island. South
Randall RM. 1989. Jackass Penguins. In: Payne AIL, Crawford African Journal of Science 74: 389–390.
RJM (eds). Oceans of Life off Southern Africa. Vlaeberg, Urquhart C, Klages N[TW]. 1996. East to the Isles. Bluecliff
Cape Town: 244–256. Publishing, Bridgemead, South Africa, p.120.

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