Noxious Weed Data Management in Colorado Lara Durán Colorado Department of Agriculture

25 40 16 24 105 Regulated Potential Spp. EDRR # species Data Type EDRR 9,000 ac QQ 16 24 Qualitative/ County 105 Potential Spp. EDRR

Data Flow for List B Annual Regulations CDA: Online Spatial Database, Shapefiles, Spray Records, GPS Negotiations Annual Rule = Regulation = Management Plans Statewide Maps Contractors Containment Maps Municipalities County Weed Manager Federal Factsheets State Annual rule decisions are driven by data from the field Non-Profit Orgs Local Management Plans Researchers Ag Producers Ag Public Citizen Scientists

USGS 7.5’ Quadrangle Map of Vail Pass Annual Rule Musk Thistle Example USGS 7.5’ Quadrangle Map of Vail Pass 9,000 acres Use annual rule to determine how to manage noxious weeds in the area By county, not by ecoregion

Musk thistle Statewide QQ Data 2015 field estimates

CDA Online Spatial Database List B Data CDA Online Spatial Database Application- Flex Database – 2008 Microsoft SQL Server Paper

Input/Table Export Acres Quarter Quad Assignments GIS Acres ≠ Input/Table Export Acres Web App Code Coarse Scale Trends?

Annual Regulation List B Data Assumptions & Caveats: Inaccuracies exist Data is incomplete Over-reporting & under-reporting Not all occurrences are GPS’d What does data tell us about rangelands in colorado Look at list b species- worst offenders & species less common

False Negatives False Positives Species Baseline 2002 Program Year Previous Rule Update MOST CURRENT Rule Update Total Change Over Time (Year2 –Year1) + (Year3-Year2) Relative Percent Change (Year3-Year1)/Year3 Comments Eurasian watermilfoil MYSP2 247 52,518 100% only List B aquatic species Oxeye daisy LEVU 3,440 16,506   Yellow nutsedge CYES 17 15,049 Spotted knapweed CEST8 1,580 4,921 4921 Moth mullein VEBL 1 339 979 978 Bouncingbet SAOF4 15 220 1046 1031 99% ornamental not inventoried & not a priorty Houndstongue CYOF 1,905 2,502 73,608 71,703 97% Common tansy TAVU 473 263 248 94% Russian olive ELAN 10,028 9,500 65,979 55,951 85% ornamental highly inventoried Black henbane HYNI 33 580 212 179 84% Musk thistle CANU4 15,760 46,491 87,633 71,873 82% Jointed goatgrass AECY 5,442 10,032 8127 81% Common & Cutleaf teasel DIFU2 DILA4 646 3,374 3,221 2575 80% easily accessible highways Chamomiles ANAR6 ANCO2 381 446 1752 1371 78% Scotch thistle ONAC 19,802 25,587 56,511 36,709 65% Wild caraway CACA19 760 114 1619 859 53% Dalmatian toadflax LIDA LIGE LIVU2 11,379 5,229 18,360 6,981 38% Canada thistle CIAR4 100,695 129,572 28,877 22% most prevelant List B Plumeless thistle CAAC 1,158 3,208 1,217 59 5% Salt cedar TARA 28,249 28,722 27,963 -286 -1% highly inventoried; biocontrol Hoary cress CADR 32,633 60,814 30,044 -2589 -9% Yellow toadflax LIVU2 41,048 874 33,532 -7516 -22% Leafy spurge EUES 74,084 39,978 39,567 -34,517 -87% Chinese clematis CLOR 1,062 331 -315 -95% Dames rocket HEMA3 1,139 563 -595 -106% Diffuse knapweed CEDI3 145,169 320 68,968 -76,201 -110% Russian knapweed CERE6 118,341 6,988 55,719 -62,622 -112% focus of on-the-ground treatment Perennial pepperweed LELA2 51,311 8,160 21,739 -29,572 -136% Bull thistle CIVU 2,087 6,889 -25,744 -374% Sulfur cinquefoil PORE5 6,189 668 -5,521 -826% Absinth wormwood ARAB3 52,427 3,636 726 -51,701 -7121% not a priority at local levels Acres Reported by Counties during Three Reporting Periods Baseline Previous Rule Current Rule Total Change/Time % Relative Change February 16, 2017 False Negatives False Positives

Ecological Thresholds Crossing Ecological Threshold? Native Sagebrush Example Native Plant Dynamics & Ecological Thresholds Modified from Tausch et al. 2009

Landfire Existing Vegetation vs. Quarter Quad Data 2011 and 2016

Eurasian watermilfoil Colorado Parks & Wildlife Waterbodies Colorado Parks & Wildlife vs. QQ Data

point, polygon, line data Russian olive 2009/2010 QQ vs. Tamarisk Coalition point, polygon, line data Yuma County

Use of plant cover for strategic management Leafy spurge Use of plant cover for strategic management

A New Future EDDMapS is a two way street Input data and export data Best way to coordinate and collaborate with multilpe people/organizations Can see where need to treat Can enter treatment records Can enter monitoring observations https://www.eddmaps.org

EDDMapSWest FREE & open source most current internet-based GIS technologies easy to use download or look at noxious weed data privacy protections professional mobile application treated EDRR management of priority species monitoring multiple users to verify submitted records biocontrol app

25 40 16 24 105 # species EDRR Data Type Regulated Potential Spp. ? Potential Spp. EDRR