Columbia Plateau Climate-Gradient Corridors Analysis

May 8, 2013 (Last modified May 21, 2013)
Uploaded by Jen Watkins
Dataset was reviewed in another manner
Description:
The dataset was produced by Washington Wildlife Habitat Connectivity Working Group (WHCWG) as part of their Columbia Plateau Climate-Gradient Corridors Analysis (WHCWG 2013).

The purpose of layers created using the climate gradient linkage-modeling method (Nuñez et al. 2013) is to help inform conservation practitioners, land use planners, and interested stakeholders in their understanding of areas likely to be important for biota as species adapt their distributions to climatic change. The results using this method are exploratory and intended to be broad-scale and generic in nature, and are not intended to direct conservation resources to specific locations or organisms.
Data Provided By:
This dataset has been prepared by the Washington Wildlife Habitat Connectivity Working Group (WHCWG) Climate Change Subgroup: Meade Krosby, lead (University of Washington); Lynn Helbrecht (Washington Department of Fish & Wildlife); Darren Kavanagh (University of Washington); Joshua Lawler (University of Washington); Guillaume Mauger (University of Washington); Brad McRae (The Nature Conservancy); John Pierce (Washington Department of Fish and Wildlife); and Peter Singleton (US Forest Service–Pacific Northwest Research Station). For complete information on the membership and activities of the WHCWG, visit http://www.waconnected.org.


Content date:
1999-2010
Citation:
Title: Washington Connected Landscapes Project Columbia Plateau Climate-Gradient Corridors Analysis
Credits: Washington Wildlife Habitat Connectivity Working Group (WHCWG)
Publication Date: 2013
Publisher: Washington Departments of Fish and Wildlife, and Transportation, Olympia, WA
Other Citation Info: This document and companion files are available online at http://www.waconnected.org.
Contact Organization:
Washington Wildlife Habitat Connectivity Working Group (WHCWG). Online at http://www.waconnected.org.
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Use Constraints:
DATA BACKGROUND: The Washington Wildlife Habitat Connectivity Working Group (WHCWG) produced these data which represent a regional analysis that portrays conditions at a regional scale. Applying these data at finer, more local scales is likely to increase uncertainty in terms of accuracy and applicability for local land use decisions. However, for the scale at which they were developed, these products are state-of-the-art, peer-reviewed representations of landscape variables and connected habitat networks. The WHCWG expended great effort to compile the best GIS data within constraints imposed by data development costs, available compilation sources, and available staff resources. Inherent in any dataset used to develop graphical representations, are limitations of accuracy as determined by, among others, the source, scale and resolution of the data. The products and data from this analysis convey a wealth of information relevant to conservation of Washington's wildlife and though they represent the state of the art, they rely on imperfect data, knowledge, and assumptions. We strongly suggest that readers thoroughly understand our methods and the limitations of those methods prior to applying our results. The data user should note Chapter 2 and appendices in the WHCWG Columbia Plateau report. See metadata Credits for the report. SOURCE DATA YEAR: The GIS base layers input to linkage modeling were developed from a wide variety of sources compiled over the years generally from 1999 to 2010. We would like to specify a GIS base layer compilation year for users of the connectivity data; however, the wide range of base layer compilation dates complicates such a specification. For example, land cover / land use, a major base layer, was mapped from Landsat imagery acquired from 1999 to 2003. This layer was subsequently modified by the WHCWG Columbia Plateau Ecoregion project using land cover / land use sources as recent as 2010. Likewise, transportation data were primarily obtained from the 2010 Census TIGER roads and housing density data were generated from the 2000 Census dataset. The data user should be aware that some areas experiencing rapid change over the last decade may not be captured in the modeling effort. APPROPRIATE SCALE OF USE: The raw GIS data obtained by the WHCWG Columbia Plateau project were compiled from a wide range of compilation source scales. The GIS data were post-processed at a 30 m x 30 m cell size (except housing density which had a native cell size of 100 m x 100 m). These data were compiled to 90 m x 90 m cell size prior to connectivity modeling. Given the wide ranging source scales and post-processing we do not recommend application of linkage data at scales larger than 1:100,000.
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About the Uploader

Jen Watkins
Conservation Associate with Conservation Northwest

I began working with Conservation Northwest in 2001 as part of the outreach team for The Cascades Conservation Partnership focused on purchasing and protecting the checkerboard lands of Washington's Central Cascades to maintain connectivity between the North and South Cascades. I have continued to...