Buren, Alejandro D. (2007) Modeling the link between prey availability and diet: common murre--capelin interaction during the breeding season. Masters thesis, Memorial University of Newfoundland.
- Accepted Version
Available under License - The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
This study explores the relationship between prey availability and predator's diet, using the common murre-capelin interaction as a case study. Data on prey availability and chick's diets were gathered synoptically during the breeding season. They were then integrated into three structurally different models: a standard multi-category logit model, a model derived from functional response theory and a model that is a hybrid between the former two. The impact of spatial variability in prey availability and the non-random searching behavior of the predator on the models' outcomes was assessed by setting scenarios that represent the murre's perception of its prey field. The model chosen as the best descriptor of the prey availability-diet relationship was the one derived from functional response theory. Insights gained from the models, and implications in the context of functional response theory, predator-prey theory and the management of marine systems, and the use of top predators as monitors of the marine environment are discussed.
|Item Type:||Thesis (Masters)|
|Additional Information:||Includes bibliographical references (leaves 106-122).|
|Department(s):||Science, Faculty of > Cognitive and Behavioural Ecology|
|Library of Congress Subject Heading:||Capelin--Predators of--Newfoundland and Labrador; Common murre--Newfoundland and Labrador; Predation (Biology)--Newfoundland and Labrador.|
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