Abundance and predatory impact of killer whales at Marion Island

Abundance and predatory impact of killer whales at Marion Island

Killer whales are the oceans’ apex predator and are known to have important effects on ecosystems. At Subantarctic Marion Island, southern Indian Ocean, they have only been studied opportunistically, resulting in limited knowledge of their ecosystem impact here. This dissertation describes the prey...

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Bibliographic Details
Main Author: Reisinger, Ryan Rudolf
Other Authors: Bester, Marthan Nieuwoudt
Published: University of Pretoria 2013
Subjects:
Diet
Apex predator
Foraging
Killer whale
Marion Island
Occurrence cycle
Orcinus orca
Penguin
Photo-id
Population size
Predator-prey interactions
Program mark
Seal
Southern Ocean
Subantarctic
Top-down control
UCTD
Online Access:http://hdl.handle.net/2263/27643
Reisinger, RR 2011, Abundance and predatory impact of killer whales at Marion Island, MSc dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/27643 >
http://upetd.up.ac.za/thesis/available/etd-08302011-165011/

Internet

http://hdl.handle.net/2263/27643
Reisinger, RR 2011, Abundance and predatory impact of killer whales at Marion Island, MSc dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/27643 >
http://upetd.up.ac.za/thesis/available/etd-08302011-165011/

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