Reprinted from PROCEEDINGS OF THE WESTERN FOUNDATION OF VERTEBRATE ZOOLOGY

نویسندگان

  • PETER W. C. PATON
  • C. JOHN RALPH
  • RICHARD A. ERICKSON
چکیده

We investigated Marbled Murrelet (Brachyramphus marmoratus) habitatuse patterns by censusing a variety of forest stands at Redwood Experimental Forest in northwestern California. Murrelet activity levels were greatest 30 minutes before to 30 minutes after sunrise in May, June, and July. Surveys at fixed stations showed that during the breeding season, murrelets were present more often in old-growth redwood (Sequoia sempervirens) stands than adjacent clearcuts and partially harvested stands (P < 0.01). Although no nests were found, observations of murrelets landing in trees and flying low through the forest were confined to old-growth stands. Problems associated with surveying murrelets at inland sites are discussed.

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تاریخ انتشار 2002