By Andi Anderson
Iowa landowners and community members are being encouraged to play an active role in monarch butterfly conservation by helping researchers track the annual fall migration. Every year, thousands of monarch butterflies travel through Iowa on their long journey to overwintering sites in Mexico, making the state an important part of their migration route.
Researchers with the Iowa Monarch Conservation Consortium (IMCC) are seeking reports of monarch roosting locations. Roosting occurs when monarchs gather in groups on trees and other sheltered areas to rest during migration. Identifying these sites provides valuable information about migration pathways and helps scientists better understand how monarchs use the landscape during their seasonal movement.
Katherine Kral-O’Brien, with the Iowa Monarch Conservation Consortium (IMCC), emphasized the importance of public participation in the project. She said, “We are seeking reports from landowners if they have monarchs roosting on their property or from community members if they observe roosting monarchs on public lands.”
She further explained, “Identifying these roosting locations provides critical data on migration pathways and helps scientists and conservationists protect and restore key habitats.”
Monarch roosts can often be identified by dozens or even hundreds of butterflies clustered together on tree branches. These gatherings are most commonly found in sheltered locations near woodland edges, windbreaks, and river corridors. Roosting activity generally occurs during the evening and early morning hours.
When a roost is observed, residents are encouraged to contact the IMCC and provide basic information about the location. Details such as the type of tree, estimated number of butterflies, observation dates, and photographs can help researchers document and analyze migration patterns. All reported information will remain anonymous. Roost locations may also be shared with Journey North, a program that supports monarch research and conservation efforts across the continent.
The project is especially important because monarch populations have declined significantly over the past several decades. Habitat loss, changing environmental conditions, and extreme weather events have all contributed to population reductions. By documenting roosting sites, landowners can directly contribute to research that guides future conservation strategies.
In addition to reporting roosts, residents can support migration tracking through new Bluetooth-based technology. Researchers are using lightweight, solar-powered BlūMorpho tags attached to monarch butterflies. These tags allow scientists to monitor butterfly movements through Bluetooth signals.
People can participate by downloading the Project Monarch app from the Google Play Store or Apple App Store. By enabling Bluetooth and searching for tagged monarchs in their area, volunteers can help researchers collect valuable migration data. This combination of community observations and innovative technology is helping scientists gain a better understanding of monarch migration while supporting long-term conservation efforts for one of North America's most recognizable butterfly species.
Photo Credit: istock-herreid
Categories: Iowa, General