Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): C.B. Meyer; S.L. Miller
    Date: 2002
    Source: Conservation Biology 16(3):755-766.
    Publication Series: Miscellaneous Publication
    PDF: Download Publication  (1.2 MB)


    As oldgrowth forest becomes more fragmented in the Pacific Northwest (U.S.A.), species dependent on large patches of oldgrowth forest may be at greater risk of extinction. The Marbled Murrelet (Brachyramphus marmoratus), a seabird whose populations are declining in North America, nests in such old-growth forests or forests with large remnant trees. Using logistic regression models on landscapes in southern Oregon, we addressed (1) whether old-growth forestfiagmentation was associated with use of an area by murrelets and (2) whether proximity to certain marine features was associated with use of forest fragments by murrelets. On a geographic information system vegetation map derived from satellite imagey, we placed circular plots of 400-, 80% 160% and 3200-m radius over surveyed inland areas occupied or unoccupied by murrelets. Within each plot, spatial and other land and seascape habitat variables were calculated and regressed against murrelet occupancy. Murrelets generally occupied low-elevation inland sites in landscapes with relatively low fragmentation and isolation of oldgrowth forest patches, and these sites were close to the coast, river mouths, and a major bay. Almost all occupied landscapes occurred in a fog-influenced vegetation zone. Because nesting habitat with large amounts of interior forest is currently scarce in southern Oregon, management efforts should focus on protecting or creating large, contiguous blocks of old-growth forest, especially in areas near the coast.

    Publication Notes

    • You may send email to to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Meyer, C.B.; Miller, S.L. 2002. Use of fragmented landscapes by Marbled Murrelets for nesting in Southern Oregon. Conservation Biology 16(3):755-766.

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page