The charismatic and familiar monarch butterfly serves as a flagship species for pollinator conservation, and gives rights-of-way entities opportunities to engage a diverse array of stakeholders who are invested in not only restoring monarch numbers to sustainable levels, but also mitigating many other environmental and economic issues.
This pre-publication draft of the TRB National Cooperative Highway Research Program's NCHRP Research Report 942 Pre-Pub: Evaluating the Suitability of Roadway Corridors for Use by Monarch Butterflies examines the potential for roadway corridors to provide habitat for monarch butterflies and developed tools for roadside managers to optimize potential habitat for monarch butterflies in their road rights-of-way.
As part of the project, several products were developed, all of which are available to interested departments of transportation.
Table of Contents
|Chapter 1. Background||1-8|
|Chapter 2. General Research Approach||9-13|
|Chapter 3. Product A: Landscape Prioritization Model for Roadside Habitat for Monarchs||14-23|
|Chapter 4. Product B: Rapid Assessment of Roadside Habitat for Monarchs||24-43|
|Chapter 5. Product C: Roadside Monarch Habitat Quality Calculator||44-60|
|Chapter 6. Product D: Best Management Strategies and Decision Support||61-95|
|Chapter 7. Conclusions and Suggested Research||96-98|
|Appendix A. Manager Workflow Diagram: Use of Roadside Habitat for Monarchs Decision Support Tools||104-105|
|Appendix B. User Guide for the Landscape Prioritization Model for Roadside Habitat for Monarchs||106-111|
|Appendix C. Rapid Assessment of Roadside Habitat for Monarchs: Field Protocol and Datasheet||112-121|
|Appendix D. User Guide for Rapid Assessment of Roadside Habitat for Monarch and Habitat Calculator: Monarch Habitat Evaluator Tool||122-157|
|Appendix E. Best Management Practices Resource Sheet: Monarch Butterflies, Weeds, and Herbicides||158-162|
|Appendix F. Regionally Specific Roadside Milkweed Recognition Fact Sheets||163-195|
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