학술논문
Impacts of cetaceans on the structure of Southern Ocean food webs.
Document Type
Letter
Author
Source
Marine Mammal Science; Apr2010, Vol. 26 Issue 2, p482-498, 17p, 1 Color Photograph, 4 Graphs
Subject
Language
ISSN
08240469
Abstract
The article presents three ecological scenarios which demonstrate the influence of cetaceans on the structure and dynamics of the food web in the Southern Ocean. It notes the impact of killer whales on the K-selected prey populations and the fur seal populations' extreme sensitivity to predation by leopard seals. It indicates that cetaceans' population fluctuations appear to play an important role in the changes seen in the Antarctic marine ecosystem in the past and in the present.