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Towards a nutritional ecology of invasive establishment: aphid mutualists provide better fuel for incipient Argentine ant colonies than insect prey.
Shik, J. Z.; Silverman, J.; Springer, Amsterdam, Netherlands, Biological Invasions, 2013, 15, 4, pp 829-836, 48 ref. Many potential species invasions fail before establishment. This is likely especially true for invasive Argentine ants that must overcome a severe founding bottleneck and transition from propagules that rely on protein-rich prey to massive supercolonies t...
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Use of termites, Reticulitermes virginicus, as a springboard in the invasive success of a predatory ant, Pachycondyla (=Brachyponera) chinensis.
Bednar, D. M.; Silverman, J.; Springer, Basel, Switzerland, Insectes Sociaux, 2011, 58, 4, pp 459-467, 16 ref. Invasive ant species have general diet and nest requirements, which facilitate their establishment in novel habitats and their dominance over many native ants. The Asian needle ant, Pachycondyla chinensis, native throughout Australasia was introduced to t...
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The Argentine ant persists through unfavorable winters via a mutualism facilitated by a native tree.
Brightwell, R. J.; Silverman, J.; Entomological Society of America, Lanham, USA, Environmental Entomology, 2011, 40, 5, pp 1019-1026 Mutualisms and facilitations can fundamentally change the relationship between an organism's realized and fundamental niche. Invasive species may prove particularly suitable models for investigating this relationship as many are dependent on finding new p...
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Northward expansion of the invasive Linepithema humile (Hymenoptera: Formicidae) in the Eastern United States is constrained by winter soil temperatures.
Brightwell, R. J.; Labadie, P. E.; Silverman, J.; Entomological Society of America, Lanham, USA, Environmental Entomology, 2010, 39, 5, pp 1659-1665, 35 ref. The invasive Argentine ant, Linepithema humile (Mayr) (Hymenoptera: Formicidae) has been evident in the North Carolina Piedmont, United States for 90 yr but has failed to spread further north. We investigated the mechanisms preventing this expansion. The ...
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Population growth of Aphis gossypii and Myzus persicae (Hemiptera: Aphididae) in the presence of Linepithema humile and Tapinoma sessile (Hymenoptera: Formicidae).
Powell, B. E.; Silverman, J.; Entomological Society of America, Lanham, USA, Environmental Entomology, 2010, 39, 5, pp 1492-1499, 50 ref. Invasive ant species can have dramatic impacts on native ants, through direct predation and by usurping common resources. Most invasive ants and many native ants use honeydew, produced by phloem-sucking hemipterans. Because colonies of invasive ants can b...
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Impact of Linepithema humile and Tapinoma sessile (Hymenoptera: Formicidae) on three natural enemies of Aphis gossypii (Hemiptera: Aphididae).
Powell, B. E.; Silverman, J.; Elsevier Ltd, Oxford, UK, Biological Control, 2010, 54, 3, pp 285-291 Ants frequently protect honeydew-excreting hemipterans from their natural enemies in exchange for food, and these interactions can have a negative impact on biological control. Invasive ant species, such as the Argentine ant, Linepithema humile (Mayr), en...
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Argentine ant invasion associated with loblolly pines in the southeastern United States: minimal impacts but seasonally sustained.
Rowles, A. D.; Silverman, J.; Entomological Society of America, Lanham, USA, Environmental Entomology, 2010, 39, 4, pp 1141-1150, 44 ref. Invasive ants are notorious for directly displacing native ant species. Although such impacts are associated with Argentine ant invasions (Linepithema humile) worldwide, impacts within natural habitat are less widely reported, particularly those affecting...
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Invasive Argentine ants reduce fitness of red maple via a mutualism with an endemic coccid.
Brightwell, R. J.; Silverman, J.; Springer, Amsterdam, The Netherlands, Biological Invasions, 2010, 12, 7, pp 2051-2057 Many invasive ant species form mutualisms with honeydew-producing Hemiptera and their aggressive presence deters the natural enemies of the Hemiptera. Invasive ant species like the Argentine ant have often been associated with hemipteran outbreaks in urba...
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Effect of an invasive and native ant on a field population of the black citrus aphid (Hemiptera: Aphididae).
Powell, B. E.; Brightwell, R. J.; Silverman, J.; Entomological Society of America, Lanham, USA, Environmental Entomology, 2009, 38, 6, pp 1618-1625, 48 ref. Invasive ants often enter into facultative mutualisms that frequently lead to outbreaks of the hemipteran partner. Native ants may also enter into similar mutualisms but often these do not lead to outbreaks. However, field studies comparing the impact of ...
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Cuticular hydrocarbons as queen adoption cues in the invasive Argentine ant.
Vásquez, G. M.; Schal, C.; Silverman, J.; Company of Biologists Ltd, Cambridge, UK, Journal of Experimental Biology, 2008, 211, 8, pp 1249-1256, many ref. In social insects, individuals typically recognize and behave aggressively towards alien conspecifics, thereby maintaining colony integrity. This is presumably achieved via a nestmate recognition system in which cuticular compounds, usually cuticular hydr...
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