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): Brian P. O’Donnell; Nancy L. Naslund; C. John Ralph
    Date: 1995
    Source: In: Ralph, C. John; Hunt, George L., Jr.; Raphael, Martin G.; Piatt, John F., Technical Editors. 1995. Ecology and conservation of the Marbled Murrelet. Gen. Tech. Rep. PSW-GTR-152. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 117-128
    Publication Series: General Technical Report (GTR)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (850 KB)

    Description

    Determining the annual cycles of Marbled Murrelet (Brachyramphus marmoratus) behavior is crucial both for understanding the life history and for management of this species. In this paper we review available information on the annual patterns of behavior in forests throughout its range, with special emphasis on California. Data were derived from standardized forest surveys. Murrelet activity peaks during the summer (breeding season), is lower during the winter (non-breeding season), and absent or very low during transition periods (pre-alternate and pre-basic molts). Murrelets are regularly detected at some breeding stands even in the non-breeding season, however, birds are rarely observed flying through or below the forest canopy during this period. Vocalizations and flock size exhibit seasonal variation as well. While certain aspects of seasonal activity and behavior patterns conform with our limited understanding of its life history, much of the species’ behavior within the forest remains a mystery. Current guidelines for monitoring the Marbled Murrelet at inland sites restrict surveys for management purposes to the breeding season.

    Publication Notes

    • You may send email to psw_communications@fs.fed.us 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.

    Citation

    O’Donnell, Brian P.; Naslund, Nancy L.; Ralph, C. John. 1995. Chapter 11: Patterns of Seasonal Variation of Activity of Marbled Murrelets in Forested Stands. In: Ralph, C. John; Hunt, George L., Jr.; Raphael, Martin G.; Piatt, John F., Technical Editors. 1995. Ecology and conservation of the Marbled Murrelet. Gen. Tech. Rep. PSW-GTR-152. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 117-128

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/27893