Covers general risk assessments, ranking systems, and other decision-making tools. See other sections for species specific information:

• Aquatic Species
• Plants
• Animals
• Microbes

General

A Decision-making Guide for Invasive Species Program Managers (May 2011; PDF | 257 KB)
Continental Dialogue on Non-native Forest Insects & Diseases.
This guide was prepared to assist senior level program managers and policy makers in establishing priorities and making choices for invasive species management programs. While recognizing the critical and primary importance of prevention programs, the focus of the guide is the management of invasive species once they have arrived, which is an uncomfortable, but increasingly familiar role for many program managers and policy makers.

BLM's Proposed Landscape Approach for Managing Public Lands
DOI. Bureau of Land Management.
Global climate change and other widespread environmental influences are affecting western landscapes. Such changes are not only of particular concern to BLM stakeholders, but such changes are also of concern for lands managed by the BLM. In response, BLM initiated "Rapid Ecoregional Assessments (REAs)" to improve the understanding of the existing condition of these landscapes, and how conditions may be altered by ongoing environmental changes and land use demands. REAs examine ecological values, conditions, and trends within ecoregions, which are large, connected areas that have similar environmental characteristics.

Conservation by Design Gateway
The Nature Conservancy.
A "one-stop" online, public library, created and maintained by The Nature Conservancy in partnership with other conservation organizations. The library makes conservation tools, techniques, and experience available to a broad community of conservation practitioners. This site is intended to foster learning and collaboration, and provide information and support to anyone making conservation-related decisions, from the staff of conservation organizations to land managers at government agencies to local land trusts to private landowners.

Experiences, Case Studies, and Assessments
Convention on Biological Diversity.
Provides sources of information on experiences with invasive alien species, including case studies and assessments; inlcudes U.S. and International resources.

Guidelines, Toolkits and Best Practices
Global Invasive Species Programme.

Halting the Invasion: State Tools for Invasive Species Management (Aug 2002)
Environmental Law Institute.
Note: Fee for full report, free download of Table of Contents and Introduction.

Hazard Analysis and Crital Control Points (HACCP)
Aquatic Nuisance Species Task Force.

Hazard Analysis and Crital Control Points (HACCP) - Managing Natural Resource Pathways
Hazard Analysis and Critial Point Planning for Natural Resource Management.
See HACCP Tools to find blank forms to use, and a manual to help guide you through the creation process. Also see HACCP Training Slides - Planning to Prevent the Spread of Invasive Species (PDF | 16.6 MB)

Invasive Species: General Decision Process for Managing Invasive Plant Species in Garry Oak (British Columbia, Canada) and Associated Ecosystems
Garry Oak Ecosystems Recovery Team.

Invasive Species Impact and Prevention/Early Action Assessment Tool (2009; PDF | 82 KB)
Washington Invasive Species Council.

Invasive Alien Species - A Toolkit of Best Prevention and Management Practices (2001; PDF | 2.4 MB)
CAB International.
On behalf of the Global Invasive Species Programme

IPM Impact Assessment for the IPM CRSP
Integrated Pest Management Collaborative Research Support Program (IPM CRSP).

Modeling software for climate change and invasive species -- CLIMEX
Hearne Scientific Software.
CLIMEX enables you to assess the risk of a pest establishing in a new location and the potential success or failure of a biological control agent with no knowledge of the species, except for knowing the current locations they do occur.

Pest Risk Analysis
European and Mediterranean Plant Protection Organization.
Risk Analysis for the EPPO region (48 European and Mediterraneancountries) which deals with agricultural, economic or environmental impacts. It can be used for every organisms and can be both species or pathway initiated. It is the regional tool adapted from ISPM 11 which is already used by countries.

Pest Risk Assessments - National CAPS Commitee Fiscal Year 2007 Target Pests
USDA. Animal and Plant Health Inspection Service.

Pets, Aquarium, and Terrarium Species: Best Practices for Addressing Risks to Biodiversity (2010; PDF | 874 KB)
Secreteriat of the Convention on Biological Diversity.
CBD Technical Series No. 48
This report is largely based on the 2008 Expert Workshop on Preventing Biological Invasions: Best Practices in Pre-Import Risk Screening for Species of Live Animals in International Trade (University of Notre Dame, Indiana, Apr 9-11, 2008), summarized in the report Best Practices in Pre-Import Risk Screening for Species of Live Animals in International Trade (2009; PDF | 2.1 MB), but contains additional information beyond what was covered in the workshop.

Plant Health Environmental Assessments
USDA. APHIS. Plant Protection and Quarantine.
Provides plant protection and quarantine environmental documents for various species.

Regional Scale Ecological Risk Assessment and the Relative Risk Model
Western Washington University. Institute of Environmental Toxicology.

• Risk Evaluation of Invasive Species Transport
  Across the U.S. – Canada Border in Washington State: Final Report (May 31, 2007; PDF | 1 MB)
• Development of a conceptual model for non-indigenous species for the Mid-Atlantic States (Sep 30, 2005; PDF | 3.5 MB)

Standard Methodology to Assess the Risks from Non-native Species Considered Possible Problems to the Environment - Executive Summary (2005; PDF | 15)
United Kingdom Department for Environment Food and Rural Affairs. Wildlife and Countryside.
In response to a key recommendation from the Defra Review of Non-Native Species Policy, Defra funded a one-year project starting in January 2004 to develop a scheme for assessing the risks posed by any non-native organism to species, habitats or ecosystems in all or part of the UK.

Eastern Forest Environmental Threat Assessment Center (EFETAC)
USDA. Forest Service.
The mission of the Eastern Forest Environmental Threat Assessment Center is to generate, integrate, and apply knowledge to predict, detect, and assess environmental threats to public and private forests of the east, and to deliver this knowledge to managers in ways that are timely, useful, and user friendly.