A recent plant survey discovered that numerous invasive non-native species are prospering in Ohio. Invasive species that have been introduced to the United States over the last century are displacing numerous native plants, according to a recent botanical assessment of southwest Ohio. In order t
The study found that many native plants are being displaced by invasive species that have been brought to the United States during the last century.Invasive species that have been introduced to the United States over the last century are displacing numerous native plants, according to a recent botanical assessment of southwest Ohio.
A century later, renowned UC botanist E. Lucy Braun followed in Lea’s footsteps by performing a second plant survey in Cincinnati. Her 1934 research, which was published in The American Midland Naturalist, discovered more than 1,400 species. She relied on Lea’s precise notes to take her back to the locations he visited, many of which had been transformed over time into houses, streets, or apartment complexes.
“The spread of nonnative invasive species into wooded natural areas in southwestern Ohio threatens the continued survival of native flora and fauna. Efforts by park managers and volunteers to control invasive plant species have become a major part of their duties.
“Amur honeysuckle is now the most abundant woody plant in Hamilton County,” he said. “One bush can produce thousands of seeds that get dispersed by birds and mammals.” Conover said where these introduced plants are found, there is often far less biodiversity to support wildlife and the food chain. Once they take hold, eradicating plants like Amur honeysuckle is labor-intensive, expensive, and time-consuming.
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