Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern
Help
 

GeoTreesearch


Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

(1.5 MB)

Title: From trees to seas—marbled murrelet numbers are down

Author: O'Callaghan, Joan

Date: 2013

Source: Science Findings 157. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 5 p.

Publication Series: Science Findings

Description:

In 1992, the marbled murrelet population in the Pacific Northwest was listed as threatened under the federal Endangered Species Act, along with the northern spotted owl and Pacific salmon. These designations were embodied in the 1994 Northwest Forest Plan, which takes an ecosystem approach to managing about 25 million acres of federal lands, with a goal of maintaining and restoring these species’ habitats and populations.

Scientists with the Pacific Northwest and Pacific Southwest Research Stations as well as the U.S. Fish and Wildlife Service and Washington State Department of Fish and Wildlife have found that, despite the plan’s conservation efforts, marbled murrelet populations declined almost 30 percent from 2000 to 2010 in Washington, Oregon, and northern California.

Although reasons for this decline are unclear, logging of large, older coniferous forest on nonfederal lands within the murrelet’s range is one likely cause, along with wildfire, windstorms, increased predation on murrelet eggs and chicks, and changing ocean conditions. Suitable nesting habitat is well protected on federal lands; however, about a third of this suitable nesting habitat occurs on nonfederal lands, where protections are less and losses are much greater than for federally managed habitat.

Keywords: marbled murrelet, monitoring, Northwest Forest Plan, Raphael, Falxa

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.
  • You may send email to pnw_pnwpubs@fs.fed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

XML: View XML

Citation:


O'Callaghan, Joan. 2013. From trees to seas—marbled murrelet numbers are down. Science Findings 157. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 5 p.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.