Habitat, Diurnal, and Tidal Effects on the Behavior of glaucous- Winged Gulls (LARUS GLAUCESCENS)

<p>The objectives of this study were to determine the effects of habitat, time of day and tide on the behavior of Glaucous-winged gulls nesting on Protection Island, Jefferson County, Washington. During the period of March - June, 1991, more gulls were present in the colony and their rates of behavior were greater during the morning and evening hours than during midday.</p> <p>Though gull numbers and their rates of behavior in the colony tended to increase with tidal cycle, a plateau in these numbers and rates consistently occurred between +0.3m to +1.2m above mean tide.</p> <p>More intrusion and courtship-related activity occurred in the short habitat than in the medium habitat, even though the nest density and reproductive success were not significantly different.</p>

Name thesis:degree_name

Master of Science (MS)

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Biology

Year

1992

Author dc:creator

• Pearson, Dean

Contributors dc:contributor

• Joseph G. Galusha
• Ron Carter
• David Cowles

• Biology
• Gulls -- Washington -- Behavior; Gulls -- Washington -- Habitat

Statement dc:rights

• This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights.

Language dc:language

English

Repository record dc:identifier

https://scholarsrepository.llu.edu/etd/690

OAI identifier oai:identifier

oai:scholarsrepository.llu.edu:etd-1807