The breeding biology and behaviour of great black-backed gulls (Larus marinus L.) in Newfoundland

Roy, Nicole A. (1986) The breeding biology and behaviour of great black-backed gulls (Larus marinus L.) in Newfoundland. Masters thesis, Memorial University of Newfoundland.

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    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.
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Abstract

The application of Game Theory to the study of behaviour has shown that it is possible, in theory, to have stable equilibria with individuals in a population behaving in different ways. In order to test for colony type selection or nesting strategies in this species, breeding success, site tenacity and mate selection should be monitored on a long term basis. An investigation of the reproductive biology and behaviour of Great Black-backed Gulls was undertaken to provide preliminary data to design such project. -- The effects of habitat or colony type selection on reproductive output was assessed in a one year study by comparing the breeding biology and behaviour of Great Black-backed Gulls in two different environments, namely a mono-specific and a mixed-species colony. Many aspects of the breeding biology of Great Black-backed Gulls were similar between colonies but important behavioural differences were observed. -- There is some evidence that colony type selection fits the model of “ideal free distribution (Fretwell and Lucas, 1970) and acts as a breeding strategy in Great Black-backed Gulls. However, energetic studies should be undertaken to assess costs and benefits of the proposed strategies.

Item Type: Thesis (Masters)
URI: http://research.library.mun.ca/id/eprint/4194
Item ID: 4194
Additional Information: Bibliography: leaves 95-99.
Department(s): Science, Faculty of > Biology
Date: 1986
Date Type: Submission
Geographic Location: Canada--Newfoundland and Labrador--Gull Island
Library of Congress Subject Heading: Great black-backed gulls; Gulls--Breeding; Gull Island (N.L.)

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