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Red imported fire ant impacts on upland arthropods in Southern Mississippi

January 1, 2010

Red imported fire ants (Solenopsis invicta) have negative impacts on a broad array of invertebrate species. We investigated the impacts of fire ants on the upland arthropod community on 20???40 ha study sites in southern Mississippi. Study sites were sampled from 19972000 before, during, and after fire ant bait treatments to reduce fire ant populations. Fire ant abundance was assessed with bait transects on all sites, and fire ant population indices were estimated on a subset of study sites. Species richness and diversity of other ant species was also assessed from bait transects. Insect biomass and diversity was determined from light trap samples. Following treatments, fire ant abundance and population indices were significantly reduced, and ant species diversity and richness were greater on treated sites. Arthropod biomass, species diversity and species richness estimated from light trap samples were negatively correlated with fire ant abundance, but there were no observable treatment effects. Solenopsis invicta has the potential to negatively impact native arthropod communities resulting in a potential loss of both species and function.

Publication Year 2010
Title Red imported fire ant impacts on upland arthropods in Southern Mississippi
DOI 10.1674/0003-0031-163.1.54
Authors D.M. Epperson, Craig R. Allen
Publication Type Article
Publication Subtype Journal Article
Series Title American Midland Naturalist
Index ID 70035424
Record Source USGS Publications Warehouse