A busy July for Alison Towner and the Great white sharks

July 26, 2011 by dyertrust

July 2011

Studying great white sharks for the last five years in Gansbaai, I have often found myself out at sea wondering just what the sharks are up to on the other side of the headland- in False Bay. I have often imagined the same sharks I am seeing in Gansbaai and how they may behave if they were to swim around the corner and continue west along the coastline to the famous Seal Island. Essentially, they would inhabit a completely different bay system. Do they hunt differently- and are the sharks visiting Dyer Island able to compete with any of the seemingly huge breaching beauties Chris Fallows has timelessly captured on film there?

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Comments from our Marine Volunteers

July 22, 2011 by dyertrust

Some comments from our past Marine volunteers and Interns:

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Lauren Waller will graduate with a PhD on 16 December

July 04, 2011 by dyertrust

The Dyer Island Conservation Trust is pleased to announce thatLauren Wallerwill formally graduate at the end of year graduation ceremony, on 16 December at 10h00. The Trust helped support Laurens studies and continues to support further studies on the endangered African penguins of Dyer Island.

Text below courtesy of Prof. Les Underhill www.adu.org.za
Laurens thesis is entitled The African Penguin Spheniscus demersus: conservation and management issues. This thesis examines the broader conservation issues facing the African Penguin. Through an analyses of aspects of African Penguin population demographics, biology and behaviour, including adult moult phenology and breeding trends, chick condition, adult foraging behaviour and their relationship to pelagic fish stocks, the manner in which the African penguin interacts with the marine environment is examined. Comparisons are made between colonies throughout their distribution, and it is shown that African Penguins at different colonies do not respond to pressures or changes in their environments in a uniform manner, a factor which will have an impact on conservation management decisions.

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