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IPM Issues in the West. Kevin Fitzsimmons. University of Arizona Department of Soil, Water and Environmental Science. Integrated Pest Management and Aquatic Nuisance Species. How did we get here?. Introduction of Exotics. Domesticated animals. Domesticated plants.
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IPM Issues in the West Kevin Fitzsimmons University of Arizona Department of Soil, Water and Environmental Science
Integrated Pest Management and Aquatic Nuisance Species • How did we get here?
Introduction of Exotics • Domesticated animals. • Domesticated plants. • Introduced “wild” animals
Aquatic Nuisance SpeciesandIntegrated Pest Management • Federal Plan • State Plan • Aquatic Weed Management Area • IPM Management Activities
A. N. S.Federal Plans • Nonindigenous ANS Act 1990 • Executive Order 13112 Feb. 99 • 100th Meridian Initiative • Federal ANS Task Force • Western Regional Panel on ANS • State Plans • USFWS support of state plans
A. N. S.Arizona • Arizona State Plan (Draft) • A.N.S. Task Force • AZG&F, AZ Dept. of Ag, USFWS, BoR, US Park Service, US Forest Service, BLM, University of Arizona, AZ Aquaculture Association • Public Meetings
Aquatic Weed Control in the Southwest • Aquatic Weed Control in the Southwest Proposal • National Fish and Wildlife Foundation • Bureau of Reclamation • Central Arizona Project • Salt River Project • Arizona Game and Fish Dept. • University of Arizona
Aquatic Weed Control in the SouthwestObjectives 1. Prepare AZ ANS State Plan for Governor’s signature. 2. Establish an Aquatic Weed Management Area 3. Quantify aquatic plant control trials in CAP and SRP 4. Develop ANS Web site 5. Instructional materials 6. Serve as model for AWMA’s in other areas.
Objective 1. Prepare AZ ANS State Plan for Governor’s signature 1. Expand AZ ANS Task Force 2. Public meetings 3. Approval from other agencies 4. Compare to other state plans 5. Coordinate with Federal plans 6. Submit draft to Governors staff
Objective 4. Develop ANS Website 1. http://ag.arizona.edu/azaqua/extension/ANS/ANS.htm
Aquatic Weed Control in the Southwest:Delta of the Colorado River 1. Establish an Aquatic Weed Management Area 2. Develop IPM plan 3. Use existing data for ANS 4. Identify locations of exotics 5. Implement controls 6. Monitoring
Background:Delta of the Colorado River • Dry during filling of Glen Canyon • Invaded by exotics • Irregular flows have assisted re-vegetation by natives provided partial control of ANS
Lake Powell fills Glen Canyon Dam Completed Annual Flows
S E A W i F S (1 km resolution) 1998 Image Altar Desert Ciénega Water & Mud Flats Colorado River Delta Project Area
Transects May 24, 1999
Digital Photos 4 8 9
10:55 10:55 10:56 10:56 10:56 10:56 10:56 Area = 67m x 100m Alt. = 150m Res. = 1.7m Swath = 600m Alt. = 1000m Res. = 17.5m Length = 1.5 km with 10 km spacing 10:53 10:47
Vegetation Indices (VI) / Image • Using vegetation indices to identify ANS in the Delta
Visual Computer Percent CoverComparison
Transects with natives and ANS • Can identify zones with ANS • Areas with flooding favor natives • Vegetation differences can be traced back to individual flood events
Percent Cover by Species in Understory, Midstory, Overstory, % of Total Land Cover & Area (ha)
Conclusions • Aquatic Weed Management Area could be established in Lower Delta based on political, management and agro-ecosystem boundaries • IPM plan could be developed based on flooding and ag run-off schedules • Satellite images can be used to assess habitat extent, water availability, and land use change. • Lower Colorado River Accounting System and LC Species Management Plan
Conclusions • IPM of Delta AWMA will depend more on flooding, remote monitoring, control of ag effluents • IPM of CAP-SRP AWMA will depend more on education, monitoring, biological controls and active management by staff • All AWMA’s would need linkages and coordination