Influence of Cape fur seals on jackass penguin numbers at Sinclair Island

Both jackass penguins and Cape fur seals breed at Sinclair Island. A concrete wall 1m high was built around the penguin colony in 1940 to protect the penguins from the fur seals. Penguins and seals within the enclosure were counted on aerial photographs taken in 1967, 1971, 1976 and 1977and compared...

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Veröffentlicht in:	South African journal of wildlife research 1980-01, Vol.10 (1)
Format:	Artikel
Sprache:	eng
Schlagworte:	Aerial photography Breeding Egg harvesting Jackass penguin Population Sinclair Island Spheniscus demersus
Online-Zugang:	Volltext
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