Assessing - Managing Invasive Plants: Concepts Principles and Practices

Developed by the Center for Invasive Plant Management for USFWS National Refuge System staff, this online learning module introduces the purpose and need for assessment in invasive plant management, a framework for assessing risk associated with plant invasions, application of invasive plant assessments to management, and assessment methods such as ranking systems, geospatial analysis, inventory/survey, and monitoring.

California Weed Risk Assessment Workshop, Proceedings

Notes from presentations and facilitated discussions from 2006 workshop organized by Cal-IPC.

The Criteria System for categorizing invasive non-native plants that threaten wildlands. Page 7 in Cal-IPC 2006 Invasive Plant Inventory (pdf)

Evaluating Risk to Native Plant Communities from Selected Exotic Plant Species

Developed by the Forest Service to help land managers identify the native plant communities most threatened by invasive plants. Land managers in Montana and Northern Idaho can use this program to prioritize and strategize their weed management efforts.

Invasive Species Assessment Protocol: Evaluating Non-Native Plants for Their Impact on Biodiversity

(Morse, et. al., NatureServe, 2004). The protocol is designed to make the process of assessing and listing invasive plants objective, systematic, and transparent and will help set priorities focusing scarce management resources.

Measuring Plant Diversity: Lessons from the Field

Because resident native diversity can affect the likelihood of invasion by non-native plants, it is critical that scientists accurately assess the composition of plant communities over large areas. A newly released book by USGS ecologist Tom Stohlgren, Measuring Plant Diversity: Lessons from the Field (Oxford University Press, 2006), presents field and analysis methods that can more accurately describe plant biodiversity and help evaluate vulnerability to invasion.

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