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Title: Surveying marbled murrelets at inland forested sites: a guide

Author: Paton, Peter W.C.; Ralph, C. John; Carter, Harry R.; Nelson, S. Kim;

Date: 1990

Source: Gen. Tech. Rep. PSW-120. Berkeley, Calif.: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. 9 p

Publication Series: General Technical Report (GTR)

Description: The marbled murrelet (Brachyramphus marmoratus), a seabird, nests in forested stands from southeast Alaska south to Santa Cruz, California. Because of this species' close association with old-growth forests, researchers and land managers need a method to assess murrelet distribution and use patterns throughout its range. This guide describes a standardized method for surveying marbled murrelets used by researchers in California and Oregon during 1988 and 1989. Transects can be used to assess activity patterns over large blocks of land, such as States or counties. Stationary counts using an intensive inventory method can be used to survey small acreages, such as individual timber sales. In addition to bird counts, vegetation and physical data should be collected at each census point. The guide includes a form that can be used to design studies and determine activity patterns and potential use.

Keywords: marbled murrelet, Brachyramphus marmoratus, seabird, census techniques, old-growth forests, California, Pacific Northwest

Publication Notes:

  • 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.

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Citation:


Paton, Peter W.C.; Ralph, C. John; Carter, Harry R.; Nelson, S. Kim 1990. Surveying marbled murrelets at inland forested sites: a guide. Gen. Tech. Rep. PSW-GTR-120. Berkeley, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. 9 p

 


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