Display Project

Disentangling the Effects of Climate and Landscape Change on Bird Population Trends in the Western U.S. and Canada

Project Information

Affiliation: Northwest CSC

Principal Investigator(s):
Matthew Betts (Forest Ecosystems and Society, Oregon State University)
Susan Shirley (Forest Ecosystems and Society, Oregon State University)
Joan Hagar (U.S. Geological Survey Forest & Rangeland Ecosystem Science Center)

Start Date: 2011

End Date: June 2013

Project Status: Completed

Tags: Climate Change, bird populations, CSC, Northwest CSC, 2011

Fiscal Year: FY 2011 Projects


Climate change has been implicated in the range shifts and population declines of many species, but the confounding of climate change with other variables, particularly landscape change, hampers inference about causation. Climate envelope models have been used to predict population trends and future distributions, but the reliability of such predictions remains relatively unknown; without tests of model accuracy, policy development will be based on highly uncertain ground. Our team proposes to assemble recent developments in change detection mapping and species modeling; specifically, our objectives are to: (1) use 32-year data on bird distributions to test the reliability of climate envelope models, (2) test whether changes in climate are linked to bird population declines over the past 32 years and, (3) assess the relative importance of climate versus landscape change in explaining changes in species distributions.

Products & Data
  • Final Report

    NWCSC_G11AC20255_OSU_Betts_FinalReport_23Apr14.pdf (Download)
  • Precipitation and winter temperature predict long‐term range‐scale abundance changes in Western North American birds

    Abstract Text Link (External URL)
    Full Text Link (External URL)
    Publication PDF (External URL)
  • Species distribution modelling for the people: unclassified landsat TM imagery predicts bird occurrence at fine resolutions

    Wiley Online Library (External URL)
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