U.S. Fish and Wildlife Service Region 6 

(CO, KS, NE, WY, MT, ND, SD, UT)

 Inventory, Mapping, and Monitoring of Invasive Plants

 In a May 2000 “Report on the State of Invasive Species Management” completed by the Region 6 Cross-Program Invasive Species Management Team, inventory and monitoring were identified as high priority needs.

Two specific needs identified:

                     Maintenance of a standard database to monitor the spread of invasives.

                     Development of a GIS system to map, inventory and monitor.

 Current work in the field on refuges and hatcheries varies from small scale GPS mapping of small infestations to large scale state-wide mapping with state, federal, and county partners.       

                       National Bison Range in Montana is working with the State Natural Heritage Program and BLM, inputting mapping and monitoring data into a GIS system.

                       The Colorado Noxious Weed Team comprised of state and federal partners also is working on state-wide GIS mapping of invasive plants.

                       The Habitat and Population Evaluation Team office in North Dakota is currently working on 2 high priority GIS needs identified by field stations:

                       Digital mapping of upland and wetland vegetation and features.

                       Collection of management information in a consistent fashion with a mechanism to enter the data into a database and attach it to a spatial feature.

Comments/concerns from the field:

                       Method should emphasize a “practical science” format with an applicable management link to track invasive plant populations and the effectiveness of control treatments.

                       Data should easily crossover to exchange with local, state, and federal partners.

                       Development of specialized skills to collect vegetation sampling data.

                       Consider scale and use appropriate tool such as aerial photography and remote sensing data to inventory and monitor large and/or remote infestations, e.g. “Mapping Canada Thistle Using AVIRIS Data and the USGS’ Tetracoder Algorithm, Rocky Mountain Arsenal........”


USGS, Biological Resources Division
Denver Federal Center, P.O. Box 25046, Bldg 20, Mail Stop 300
Central Regional Office, Denver, CO 80225-0046

Contact: jcoffelt@usgs.gov
Updated: 09/12/01