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Regional-Scale Environmental Resistance To Non-Native Ant Invasion, Robert Warren
Regional-Scale Environmental Resistance To Non-Native Ant Invasion, Robert Warren
Biology Faculty Datasets
A successful invasion of novel habitat requires that non-native organisms overcome native abiotic and biotic resistance. Non-native species can overcome abiotic resistance if they arrive with traits well-suited for the invaded habitat or if they can rapidly acclimate or adapt. Non-native species may co-exist with native species if they require novel, underused resources or if they can out-compete similar native species. We investigated abiotic and biotic resistance to the progression of a Brachyponera chinensis invasion in the southeastern U.S. relative to the dominant native woodland ant (Aphaenogaster). We used observational data from long-term plots along the elevation gradient …
Non-Native Ant Invader Displaces Native Ants But Facilitates Non-Predatory Invertebrates, Robert Warren, Madeson C. Goodman
Non-Native Ant Invader Displaces Native Ants But Facilitates Non-Predatory Invertebrates, Robert Warren, Madeson C. Goodman
Biology Faculty Datasets
Many invasive ants, such as the European fire ant (Myrmica rubra), are particularly successful invaders due to their ability to form multi-nest, multi-queen 'supercolonies' that appear to displace native invertebrates in invaded regions. Myrmica rubra has invaded many areas in the Northeastern United States, including Western New York. Myrmica rubra invasion corresponds with decreases in native invertebrates, particularly ants, an effect which may be attributable to direct displacement, or because M. rubra prefers habitat unsuitable for native ants. We surveyed Western New York parklands to investigate native ant and non-ant invertebrate abundance in M. rubra-invaded and …