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The history of DEMO: An experiment in regeneration harvest of northwestern forest ecosystems. Northwest Science 73:3-11.

2024 Annual meeting!

We are delighted to announce that the 94th annual meeting of the Northwest Scientific Association

will take place from

MAY 20-23, 2024


The 2024 meeting will mark NWSA's return to the city that hosted its 1st annual meeting, in April 1924.


  • May 20th: Evening reception
  • May 21st - 22nd: Scientific sessions
  • May 23rd: Field trips

We invite you to save the dates and stay tuned for more information as we continue to plan the event. Thanks to Gonzaga University and our local host, John Orcutt.

See you in Spokane, 2024!


Mission Statement: We are a network of professional and amateur scientists from diverse disciplines that provides support and a forum for research and education relevant to the environment and resource management of northwestern North America. To accomplish our mission, the association publishes a quarterly journal, convenes an annual scientific meeting, and awards student research grants.

Since 1923, the NWSA has existed for the purpose of promoting scientific research and disseminating scientific knowledge. Our annual meetings are held throughout the Pacific Northwest and provide an opportunity to share recent findings and foster collaborative interactions.

NWSA publishes four issues of Northwest Science each year. A peer reviewed journal, Northwest Science is an outlet for original papers on wide ranging topics in the natural sciences, including anthropology, aquatic biology, botany, ecology, fisheries, forestry, geology, geography, hydrology, soils, wildlife biology, and zoology. The geographic scope of Northwest Science is the northwestern United States and western Canada.


Members should click here to access Northwest Science on
Click here to access abstracts of “Accepted articles in press” for the upcoming issue of Northwest Science.

Northwest Science 96(1&2)
Table of Contents


Postglacial Fire and Vegetation History from Doheney Lake in the Sinlahekin Wildlife Area, Okanogan County, Washington – Megan K. Walsh, Kevin C. Haydon, Dale Swedberg

Drivers of Forested Riparian Microclimate on the Olympic Peninsula of Washington State – Katrina Rose Keleher, Richard E. Bigley, Warren D. Devine

Three-Year Effects of Crown Removal by Clipping or Burning on Beargrass (Xerophyllum tenax) Size and Biomass – David H. Peter, Timothy B. Harrington

Overwinter Mass Loss of Townsend's Big-Eared Bats in Five Caves – Jericho C. Whiting, Martha C. Wackenhut, Bill Doering

Implications of Metrics and Methodology for Juvenile Salmonid Monitoring in Western Oregon Streams – Ronald J. Constable Jr, Erik Suring

Influence of Aboveground Pipeline and Associated Factors on Movement of Winter-Active Boreal Mammals in the Alberta In-Situ Oil Sands – Michael L. Charlebois, Hans G. Skatter, Sondre Skatter, John L. Kansas

Influences of Succession and Biogeoclimate on Forage Resources for Elk in Northern Idaho – Deborah S. Monzingo, John G. Cook , Rachel C. Cook , Jon S. Horne, Lisa A. Shipley

Comparative Phylogeography of Microsnails from the Pacific Northwest – Megan L. Smith, Connor Lang, David Sneddon, Jessica Wallace, Anahí Espíndola, Jack Sullivan, Bryan C. Carstens

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