Evaluating the Suitability of Roadway Corridors for Use by Monarch Butterflies
Roadsides provide promising monarch habitat as they frequently contain nectar and host
plants; however, they also present a range of risks, including pesticide spillover, vehicle collisions, contaminant
runoff, and non-native vegetation.
The TRB National Cooperative Highway Research Program's
NCHRP Research Report 942: Evaluating the Suitability of Roadway Corridors for Use by Monarch Butterflies
provides guidance for roadside managers to determine the
potential of their roadway corridors as habitat for monarch butterflies.
The report also includes several tools
and decision-support mechanisms to optimize habitat potential in a manner that is compatible
with the continued operation and maintenance of the roadside.
This Summary Last Modified On: 5/27/2020