Arizona’s Wildlife Linkages Assessment
Transcript of Arizona’s Wildlife Linkages Assessment
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Arizona’s Wildlife Linkages Assessment
Bruce D. Eilerts Deputy Director
Natural Resources Management GroupArizona Department of Transportation
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Arizona Wildlife Linkages Workgroup
n Forming Partnershipsn Identification of Common Goalsn Identification of Funding Sourcesn Early Buy-inn Investment of Staff & Resources = Commitment
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Purpose
n To identify and prioritize broad linkage zones that will facilitate movement for Arizona’s diverse array of wildlife species
n To promote safe passage for wildlife and people
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Collaborative Pro-active Approach
n Local and Regional Expertise
n Comprehensive (more than just roads)
n Science-basedn Emphasis on
Improving (not just mitigating threats to) Connectivity
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The Assessment
n Outlines the processes used to define and map the locations of important wildlife linkage zones
n Explains the criterion used to prioritize these areas for further analysis
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Coarse Identification of Habitat Blocks and Their Associated Potential Linkage Zones
Data Compilation/Digitizing of Map
Delineation of Habitat Blocks and Linkage
Zones
Reconciliation of Datasheets with Drawn Habitat
Blocks and Linkages
Exclusion of Private and State Land
Within Habitat Blocks
Riparian Areas Classified as both Habitat Block and Linkage Zone
Re-evaluation of Identified Habitat Blocks and Potential Linkage Zones
Modification/Addition of Identified Habitat Blocks and
Potential Linkage Zones
Verification of Inclusion of Existing Wildlife Connectivity
Plans
Development of Prioritization Matrix: Threats/Opportunities versus Biological Value
Criteria Identification and Definition
Weighted Percentage Determination
Preliminary Prioritization of Potential Linkage Zones
ARIZONA’S MISSING LINKAGES WORKSHOP
FOLLOW-UP WORKSHOPS
Linkage Designs
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Arizona’s Wildlife Linkages Map
n All Linkages Identified to Date
n Continuing Process of Revisions and Additions
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Linkage Zone Information
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Land
n Agency Jurisdictions
n Ownership
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Threats and Opportunities
n Roadsn ADOT, USDA Forest
Service, County Transportation Plans
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ROADWAYS IN SOUTHERN ARIZONA
2,000,000 More People
in AZ by 2020
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Threats and Opportunities
n Urbanization
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Threats and Opportunities
n Canalsn Less than a handful of
wildlife crossing currently exist
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Threats and Opportunities
n Railroads
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Threats and Opportunities
n Border Securityn Military Activities
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Species
n No Species Left Behind!
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Hydrology
n Riparian Areas Function as both Habitat and Linkages
n Migratory Birdsn Native Fishes
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Biotic Communitiesv Sonoran Desert Lower Colorado
Subdivisionv Sonoran Desert, Arizona Uplandsv Chihuahuan Desertv Mohave Desertv Great Basin Desert scrubv Semi desert Grasslandsv Madrean Evergreen Woodlandsv Interior Chaparralv Great Basin Conifer Woodlandsv Plains & Great Basin Grasslandsv Petran Montane Conifer Forestv Sub alpine Conifer Forestv Sub alpine Grasslands
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Biotic Communities
n Dovetails into the CWCS
n CWCS utilized a threat matrix based on biotic communities within the Nature Conservancy’s ecoregion designations
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This is Just the First Step
n Initial “Catch All” Approach
n 152 Broad Linkage Zones Identified to Date
n There is still much work to be done!
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Currently Providing Guidancen Pima County
n Bond Initiativesn Green Space Planning
n Contractors & Consultants
n Planners
n Governor’s Growth and Infrastructure
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Future Directions
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Future Linkage Zone ID and Refinement
n Identification of Additional Linkage Zones within Habitat Blocks
n Previously Undisturbed Areas
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Linkage Zone Analysis
n Provides the Basis for Determination of Best Linkage Placement
n Fundamental to Planning for Wildlife Crossings
n Increases the Likelihood of Creating Effective Wildlife Crossings
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Linkage Designsn Site Specific Analysis for use by Planners, Land
Managers and Engineers
n Currently 8 Designs Funded by AGFDn Northern Arizona University School of Forestryn Overseen by the Arizona Wildlife Linkages Workgroup
n Linkage 66: Superior – Miami US 60n Linkage 79: Ironwood – Desert Peakn Linkage 93: Tumacacori – Santa Ritasn Linkage 94: Galliuro – Winchester – Dragoons
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Integration of Transportation and Regional Planning
n Ensure that Connectivity Needs are Addressed Upfront in Project Planning Efforts
n Starting Point for Detailed Consultation and Coordination among the Stakeholders
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Development of Web-based Tool
n Available Information on Linkage Zones
n Updated on an Annual Basis
n Public Accessibility
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In the Long Term
Statewide vision for protecting and
restoring habitat connectivity, which
is vital for maintaining healthy
populations of native species