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Effects of introduced rats on nesting seabirds of Haida Gwaii / Anne Harfenist.: CW69-5/218E-PDF

"In 1993, I conducted studies on two islands in Haida Gwaii (Queen Charlotte Islands) to determine effects of introduced rats on breeding seabirds. The breeding population of ancient murrelets (Synthliboramphus antiquus) on Langara Island declined by approximately 40% between 1988 and 1993 to a level less than 10% of its historical size. The colony covered only about 50% of the area used by murrelets in 1988. Predation on ancient murrelet eggs and adults by Norway rats (Rattus norvegicus) appears to be the primary cause of the colony decline"--Abstract.

Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.857727&sl=0

Publication information
Department/Agency
  • Canada. Environment Canada.
  • Canadian Wildlife Service. Pacific and Yukon Region.
TitleEffects of introduced rats on nesting seabirds of Haida Gwaii / Anne Harfenist.
Series title
  • Technical report series ; no. 218
Publication typeMonograph - View Master Record
Language[English]
FormatDigital text
Electronic document
Other formatsPhysical text-[English]
Note(s)
  • Digitized edition from print [produced by Environment and Climate Change Canada].
  • Includes bibliographical references (p. 33-34).
  • Issued also in print format.
  • Includes abstract in French.
Publishing information
  • Delta, B.C. : Canadian Wildlife Service, Pacific and Yukon Region, 1994.
Author / Contributor
  • Harfenist, Anne, 1957-
Descriptionvi, 52 p. : maps.
Catalogue number
  • CW69-5/218E-PDF
Subject terms
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