Linepithema humile ant 12 Argentina 10 Animals 8 Ants 8 animal 8 invasive species 8 physiology 8 Feeding Behavior 4 Formicidae 4 Social Behavior 4 aggression 4 animal behavior 4 animal experiment 4 article 4 bait 4 behavioral response 4 biological invasion 4 controlled study 4 feeding behavior 4 foraging behavior 4 introduced species 4 metabolism 4 native species 4 nonhuman 4 organism colony 4 queen (insect) 4 social behavior 4 unclassified drug 4 Animal Structures 2