By Sandra Elliott, Kentucky Department of Fish and Wildlife Resources
Photo by Sandra Elliott.
Of all the pollinators native to Kentucky, the monarch is likely one of the most recognized. This universally known insect is one of the first to come to mind when someone says “butterfly.” These striking orange and black butterflies will migrate up to 3,000 miles each year, spanning three to four generations.
The starting line of this year-long marathon is in the mountains of Mexico where adult butterflies that have migrated south have overwintered in oyamel fir forests. These monarchs take flight in early spring and reproduce in northern Mexico and the southern US to create Generation 1.
This generation of monarchs will head north as adults and breed along the way. Generation 2, the offspring of the previous migratory parents, will grow and head north as well in early summer. Generations 3 and 4 will be laid in the northern US and southern Canada. This last generation will become adults at the northern limits of their range and will begin their travels south to the overwintering grounds in Mexico in late summer and early fall. These are the butterflies that will kick off the next round of migrations like their great-great grandparents.
Milkweed for monarch success
In order for this year long migration of multiple generations to be successful, monarch butterflies depend on flowering plants to first fuel their own bodies for flight and reproduction, and second to be a breeding ground and food source for their offspring. The most important of these plants are the milkweeds that are the obligatory nursery plants of monarch caterpillars. Monarchs will only lay eggs on the leaves of milkweed, and these are the only plants that sustain the growing caterpillars. Unfortunately, there has been a great loss of monarch habitat and the monarch butterfly is being considered for listing as a threatened species by the U.S. Fish and Wildlife Service under the Endangered Species Act.
Within the state of Kentucky, there is a great deal of support for the conservation of the monarch butterfly. Both agencies and individuals are putting forth efforts to increase habitat area for monarchs, and for other pollinators native to the state as well. The Kentucky Department of Fish and Wildlife Resources set forth by developing the Kentucky Monarch Conservation Plan in collaboration with other monarch stakeholders.
The Plan outlines goals and strategies for the conservation of the butterfly and its habitat. The Kentucky Department of Agriculture developed the Kentucky Pollinator Protection Plan, and a multitude of other state agencies, entities and private organizations participate in the Kentucky Pollinator Stakeholder Group to conserve both monarchs and pollinators in the state. The Kentucky Transportation Cabinet (KYTC) has had a large hand in developing about 200 acres of pollinator habitat. Roadsides, interstate rest areas, and interchanges are a few places that KYTC has developed for pollinators. You can see these eye-catching Pollinator Habitat Zones on the sides of interstates, and you can even see these bright pops of color bordering elevated lanes in the heart of Louisville.
Even organizations that specialize in native game birds and that have initiatives to restore native grassland habitat for quail and pheasants also have the monarch in mind. There are so many animals that benefit from promoting the regeneration of grasslands native to Kentucky just by virtue of being native; native pollinator plants are able to thrive when lands are managed to maintain these grasslands. These agencies and organizations have the ultimate goal of improving habitats for all native species, not just the few they are targeting for conservation.
Monarchs are also assisted by individuals like you. Planting small monarch gardens wherever there is space for them is one way people help boost pollinator habitat area. These gardens can also be registered with MonarchWatch.org as waystations so all contributions can be tracked and appreciated. In Kentucky alone, there are currently 957 waystations registered! The most crucial part of planting and maintaining a monarch garden is including milkweed. Much of it grows wild across the state! Butterfly milkweed (A. tuberosa), common milkweed (Asclepias syriaca), and swamp milkweed (A. incarnata) are three that are common in Kentucky.
Monarchs will also utilize other flowers as nectar sources, and it’s important to provide plants that flower throughout the year so monarchs have sources of energy during both the breeding season as well as during their migration south in the fall. Aside from milkweed, black-eyed susan (Rudbeckia hirta), beebalm (Monarda didyma), mountain mint (Pycnanthemum), goldenrod (Solidago), blazing star (Liatris), ironweed (Vernonia), and smooth aster (Symphyotrichum) are just a few of many native pollinator plants that could be included in monarch gardens to attract a variety of pollinators. The Kentucky Native Plant Society maintains a list of native plant vendors across the state to help those who are looking for plant resources: https://www.knps.org/native-plant-nurseries/.
What can you do if you don’t have the space for a garden? Participating in community science initiatives aids in spreading awareness and education about the current challenges faced by the monarch butterfly. There are opportunities to track monarchs along their migration route (visit monarchjointventure.org and journeynorth.org to learn more). A monarch you help tag in the fall could be recorded in Mexico! Follow us on Facebook at “Kentucky Monarchs” as we share information and links related to monarch butterflies in Kentucky, and remember that no effort is too small to help conserve monarchs!
Sandra Elliott is an at-risk species technician with the Kentucky Department of Fish and Wildlife Resources.