@article {33499,
	title = {Density-Dependent effects of an invasive ant on a ground-dwelling arthropod community},
	journal = {Environmental Entomology},
	year = {2015},
	month = {2015/01/21},
	abstract = {<p>It is frequently assumed that an invasive species that is ecologically or economically damaging in one region, will typically be so in other environments. The Argentine ant Linepithema humile (Mayr) is listed among the world\&rsquo;s worst invaders. It commonly displaces resident ant species where it occurs at high population densities, and may also reduce densities of other ground-dwelling arthropods. We investigated the effect of varying Argentine ant abundance on resident ant and nonant arthropod species richness and abundance in seven cities across its range in New Zealand. Pitfall traps were used to compare an invaded and uninvaded site in each city. Invaded sites were selected based on natural varying abundance of Argentine ant populations. Argentine ant density had a significant negative effect on epigaeic ant abundance and species richness, but hypogaeic ant abundance and species richness was unaffected. We observed a significant decrease in Diplopoda abundance with increasing Argentine ant abundance, while Coleoptera abundance increased. The effect on Amphipoda and Isopoda depended strongly on climate. The severity of the impact on negatively affected taxa was reduced in areas where Argentine ant densities were low. Surprisingly, Argentine ants had no effect on the abundance of the other arthropod taxa examined. Morphospecies richness for all nonant arthropod taxa was unaffected by Argentine ant abundance. Species that are established as invasive in one location therefore cannot be assumed to be invasive in other locations based on presence alone. Appropriate management decisions should reflect this knowledge.</p>
},
	keywords = {abundance, arthropod, density-dependence, impact, Linepithema humile},
	url = {http://ee.oxfordjournals.org/content/early/2015/01/21/ee.nvu008.abstract},
	author = {Cooling, M. and Sim, D. A. and Lester, P. J.}
}
@article {33449,
	title = {Bait preference by the Argentine ant (Hym.: Formicidae) in Haleakala National Park, Hawaii},
	journal = {Environmental Entomology},
	volume = {27},
	year = {1998},
	note = {Part of FORMIS 00; from NAL{\textquoteright}S AGRICOLA; from-DPW, },
	month = {Dec.},
	pages = {1482-1487},
	abstract = {The Argentine ant, Linepithema humile (Mayr), has proven to be a threat to native arthropod species in Haleakala National Park, Maui, HI, and is also a potential threat to the park{\textquoteright}s native flora. As it continues to expand its range, an effort has been undertaken to eradicate it, or at the least, control its spread. The 1st part of this effort focused on finding a bait carrier for subsequent toxicant-based control tests. A year-long bait preference test was implemented at each of the ant{\textquoteright}s 2 infestation sites in Haleakala National Park, in which 6 solid baits and 2 liquid baits were assessed for attractiveness and feasibility for large scale control. At both sites, a toxicant-free formulation of Maxforce, a protein-based granular bait made from ground silkworm. Bombyx mori (L.), pupae, and a 25\% sugar water solution were the most attractive baits. Ants took more Maxforce (without  toxicant) and sugar water than all other baits, including honey granules and a fish protein bait. Sugar water, however, is difficult to distribute over large natural areas. Maxforce was therefore concluded to be the best bait carrier for toxicant-based control at Haleakala National Park because of its attractiveness and its ease for large scale broadcast dispersal.},
	author = {Krushelnycky, P.D. and Reimer, N.J.}
}
@article {3732,
	title = {Effects of abiotic factors on the distribution and activity of the invasive Argentine ant (Hymenoptera: Formicidae)},
	journal = {Environmental Entomology},
	volume = {27},
	year = {1998},
	note = {Part of FORMIS 98; from NAL{\textquoteright}S AGRICOLA; from-DPW, verified-DPW.},
	month = {Aug.},
	pages = {822-833},
	abstract = {The Argentine ant, Linepithema humile (Mayr), has spread worldwide, often decimating native ant populations and other arthropod species in invaded areas. It is not known what abiotic and biotic conditions limit its distribution. We investigated the distribution of the Argentine ant in the Jasper Ridge Biological Preserve in northern California, a nature preserve that has been partially invaded by these ants. Canonical correlation analysis showed that the Argentine ant is most likely to occur near the edges of the preserve, which are next to disturbed areas and in low-elevation areas. Native ant species are associated with higher-elevation areas farther from the preserve edge. Distance to surface water and insolation were less important in predicting Argentine ant distribution. This suggests that dispersal from disturbed areas strongly determines the spread of the invasion. We examined how the daily activity patterns of Argentine ants and several native and species depend on soil temperature, air temperature, and relative humidity. There was considerable overlap in activity times, and there were no values of any of the abiotic factors measured in which native ant species were more likely to be active than Argentine ants.   Because the Argentine ant is usually active at the same times as any native species, most native species in invaded areas are likely to encounter the invaders frequently. Diet overlap was high with most native ant species except for seed-eating species. Overlap in activity times may intensify both exploitative and interference competition between the Argentine and native ant species.},
	author = {Human, K.G. and Weiss, S. and Weiss, A. and Sandler, B. and Gordon, D.M.}
}
