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Showing 1 to 4 of 4 for “"Penguin foraging"”.
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Fine-scale drivers of African Penguin prey dynamics in Algoa Bay, South Africa, and their impacts on penguin foraging ecology
African Penguins (Spheniscus demersus) have undergone a dramatic decrease in their population since the turn of this century prompting the up-grading of their conservation status to 'endangered'. There is growing evidence that variation in the availability of their principle prey, pelagic shoaling …
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A potential mechanism sustaining the biological hotspot around Palmer Deep Canyon
… behavior were tracked in relationship to nearby penguin foraging areas to determine how this subsurface feature and the resulting retention impacts the biological hotspot in PDC. The canyon was removed from the model to determine its impact on zooplankton delivery. Observed foraging areas had …
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Factors influencing the foraging behaviour of African Penguins (Spheniscus demersus) provisioning chicks at Robben Island, South Africa
… to halt the declines of endangered African Penguins. A purse-seine fisheries closure zone was in place out to 20 km around Robben Island for three years. It provided an opportunity to investigate penguin foraging behaviour in relation to estimated local prey abundance and other factors …
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Plasticity and partitioning of foraging behaviour among and within sympatric Pygocelis penguin populations
… such as breeding seabirds, need to adjust their foraging behaviours in response to the growth and development of their offspring. As a result, they need to return to their nests regularly. These breeding constraints limit their foraging ranges. In the Southern Ocean, sympatrically breeding …