Trends in Developed Land Cover Adjacent to Habitat for Threatened Salmon in Puget Sound, Washington, U.S.A. Public Deposited

http://ir.library.oregonstate.edu/concern/articles/xg94hr31h

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  • For widely distributed species at risk, such as Pacific salmon (Oncorhynchus spp.), habitat monitoring is both essential and challenging. Only recently have widespread monitoring programs been implemented for salmon habitat in the Pacific Northwest. Remote sensing data, such as Landsat images, are therefore a useful way to evaluate trends prior to the advent of species-specific habitat monitoring programs. We used annual (1986-2008) land cover maps created from Landsat images via automated algorithms (LandTrendr) to evaluate trends in developed (50-100% impervious) land cover in areas adjacent to five types of habitat utilized by Chinook salmon (O. tshawytscha) in the Puget Sound region of Washington State, U.S.A. For the region as a whole, we found significant increases in developed land cover adjacent to each of the habitat types evaluated (nearshore, estuary, mainstem channel, tributary channel, and floodplain), but the increases were small (<1% total increase from 1986 to 2008). For each habitat type, the increasing trend changed during the time series. In nearshore, mainstem, and floodplain areas, the rate of increase in developed land cover slowed in the latter portion of the time series, while the opposite occurred in estuary and tributary areas. Watersheds that were already highly developed in 1986 tended to have higher rates of development than initially less developed watersheds. Overall, our results suggest that developed land cover in areas adjacent to Puget Sound salmon habitat has increased only slightly since 1986 and that the rate of change has slowed near some key habitat types, although this has occurred within the context of a degraded baseline condition.
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  • Bartz, K. K., Ford, M. J., Beechie, T. J., Fresh, K. L., Pess, G. R., Kennedy, R. E., ... & Sheer, M. (2015). Trends in developed land cover adjacent to habitat for threatened salmon in Puget Sound, Washington, U.S.A. PLoS ONE, 10(4), e0124415. doi:10.1371/journal.pone.0124415
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  • description.provenance : Submitted by Patricia Black (patricia.black@oregonstate.edu) on 2015-06-23T15:41:32Z No. of bitstreams: 2 license_rdf: 1089 bytes, checksum: 0a703d871bf062c5fdc7850b1496693b (MD5) KennedyRobertCEOASTrendsDevelopedLand.pdf: 2133352 bytes, checksum: aeb75cd988d7daac759d996b684de038 (MD5)
  • description.provenance : Made available in DSpace on 2015-06-23T15:42:02Z (GMT). No. of bitstreams: 2 license_rdf: 1089 bytes, checksum: 0a703d871bf062c5fdc7850b1496693b (MD5) KennedyRobertCEOASTrendsDevelopedLand.pdf: 2133352 bytes, checksum: aeb75cd988d7daac759d996b684de038 (MD5) Previous issue date: 2015-04-29
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2015-06-23T15:42:02Z (GMT) No. of bitstreams: 2 license_rdf: 1089 bytes, checksum: 0a703d871bf062c5fdc7850b1496693b (MD5) KennedyRobertCEOASTrendsDevelopedLand.pdf: 2133352 bytes, checksum: aeb75cd988d7daac759d996b684de038 (MD5)

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