Clutch size in pigeon guillemots : an experimental manipulation and reproductive success in one and two egg clutches
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Date
1991
Authors
McLaren, Elizabeth B., 1962-
Journal Title
Journal ISSN
Volume Title
Publisher
Thesis (M.S.)--University of Oregon, 1991.
Abstract
The ability of the Pigeon Guillemot Cepphus columba to
rear an additional chick was tested by manipulating clutch
sizes. The effect of the manipulations on growth, and
hatching, fledging, and egg success was measured in chicks
from experimental, natural, and control nests. No
significant differences were observed between the nest
types. Data from 1983, 1984, 1985, and 1989 were analyzed
for potential differences in reproductive success of one and
two egg clutches. The ratio of one to two eggs was
significantly higher in 1985 and 1989. Hatching and
fledging success was significantly higher for two egg
clutches in 1985 and 1989. No significant differences were
observed for egg success. Egg volume was significantly
greater in two egg clutches in 1983 and 1984. Egg volume
was correlated with fledging but not with hatching success.
Description
Typescript.
Includes vita and abstract.
Bibliography: Includes bibliographical references (leaves 63-68).
Description: viii, 68 leaves : map ; 29 cm.
Keywords
Pigeon guillemot -- Reproduction, Pigeons -- Reproduction, Pigeons -- Eggs, Pigeons -- Breeding, Clutch size (Zoology), Animal clutches
Citation
McLaren, Elizabeth B. Clutch Size in Pigeon Guillemots: An Experimental Manipulation and Reproductive Success in One and Two Egg Clutches. Thesis (M.S.)--University of Oregon, 1991, 1991.