Arthropod communities on native and nonnative early successional plants

Environmental Entomology
Meg BallardDouglas Tallamy

Abstract

Early successional ruderal plants in North America include numerous native and nonnative species, and both are abundant in disturbed areas. The increasing presence of nonnative plants may negatively impact a critical component of food web function if these species support fewer or a less diverse arthropod fauna than the native plant species that they displace. We compared arthropod communities on six species of common early successional native plants and six species of nonnative plants, planted in replicated native and nonnative plots in a farm field. Samples were taken twice each year for 2 yr. In most arthropod samples, total biomass and abundance were substantially higher on the native plants than on the nonnative plants. Native plants produced as much as five times more total arthropod biomass and up to seven times more species per 100 g of dry leaf biomass than nonnative plants. Both herbivores and natural enemies (predators and parasitoids) predominated on native plants when analyzed separately. In addition, species richness was about three times greater on native than on nonnative plants, with 83 species of insects collected exclusively from native plants, and only eight species present only on nonnatives. These results ...Continue Reading

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Citations

Jun 25, 2014·Environmental Entomology·David G JamesKatie Buckley
Oct 28, 2015·Horticulture Research·H Dayton WildeGregory Colson
Nov 28, 2018·PloS One·Hannah L RiedlWilliam H Clements
Oct 26, 2018·Proceedings. Biological Sciences·Michael P WardFrank R Moore
Feb 20, 2021·Ecological Applications : a Publication of the Ecological Society of America·Luis MataYvonne Lynch

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