Leave the Leaves for Fireflies and Luna Moths
Written by: Cheryl Bader and Janet Conley
Picture attributed to Gearld via Adobe Stock
Have you ever wondered why there are not very many fireflies anymore?
Where have the Chickadees gone and why?
My granddaughter loves fireflies, but she rarely sees any in her yard and we don’t see very many at Leisure World.
Firefly populations have declined over the years partially due to common landscaping and gardening procedures including here at Leisure World.
Firefly larvae live in leaf litter and help control pests by eating slugs and snails. Adult fireflies are effective pollinators and give us an amazing light show at night. Leaf removal through blowing, mulching, or bagging destroys larvae that live under leaves for 1-2 years.
Among the notable insects we have at Leisure World are luna moths which shelter under leaves instead of migrating, and are vital to the food web for birds and other animals. Both adults and caterpillars serve important ecological functions; their absence would negatively impact the environment. The beautiful luna moth would be missed.
Many helpful insects, including fireflies and luna moths, rely on leaves to overwinter. “I Didn’t Know That” National Park Service: https://www.nps.gov/articles/000/idkt_leave-the-leaves.htm
A number of familiar bird species feed on insects, either exclusively or as a part of their diet. Chickadees, bluebirds, chimney swifts, robins, and purple martins all rely on insects for survival. Likewise, our flower and vegetable gardens depend on pollinators to thrive.
Chickadees are dependent on insects to feed their young
and will nest only where insects are abundant.
Leaves are left under groves of trees throughout Leisure World and the golf course. Can we expand this?
Doug Tallamy in “How Can I Help? Saving Nature with Your Yard” (Timber Press, Portland Oregon, pp. 301-302) provides four reasons to keep leaves on your property:
Leaves provide habitats for many creatures, especially moths.
They serve as a food source for around 70 moth species.
Fallen leaves return nutrients to trees from the previous season.
They help protect soil communities.
An initiative known as “Leave the Leaves” is gaining traction and highlights an important consideration for Mutual Landscaping Committees. It is increasingly essential to adopt this approach. For further information regarding the benefits and practices of leaving leaves in place, please refer to the Xerces Society article “Leave the Leaves” available at https://xerces.org/blog/leave-the-leaves.