Five insecticides used by urban pest management professionals for ant control and threeexperimental insecticideswere tested todeterminewhether these insecticideswerehorizontally transferred among individuals in colonies of Argentine ants, Linepithema humile (Mayr) (Hymenoptera: Formicidae). Antswere exposed to insecticide-treated sand for 1min and then placed in a colony of untreated ants. Ants...

Ants are diverse and abundant, especially in tropical ecosystems. They are often cited as the agents of key ecological processes, but their precise contributions compared with other organisms have rarely been quantified. Through the removal of food resources from the forest floor and subsequent transport to nests, ants play an important role in the redistribution of nutrients in rainforests. Th...

Cuticular hydrocarbons from the ponerine ant Ectatomma ruidum Roger and a highly integrated eucharitid myrmecophile, Kapala sulcifacies (Cameron), associated with it, have been characterized. Ninety hydrocarbons were identiÞed from the ant, 55 hydrocarbons from the female wasp and 54 hydrocarbons from the male wasp. The wasps and ants share 40 hydrocarbons. These shared 40 hydrocarbons represen...

Spiders have their own suite of adaptations to avoid predators. They can run fast, jump high and even selfamputate their own legs to escape, and some species do something even cleverer: they disguise themselves as ants. They wave their forelegs around like antennae and even their thin, tapered bodies are shaped like those of ants. It has the desired effect; most predators mistake them for ants ...

Purpose. At present, the computer networks of information and telecommunication system (ITS) railway transport use OSPF protocol, which does not allow taking into account several metrics when determining optimal route. Therefore, there is a need to study possibility organizing routing in rail ITS using two-colonial ant algorithm. Methodology. According Two-ACO software model, created Python lan...

We present in this work a new algorithm for document hierarchical clustering and automatic generation of portals sites. This model is inspired from the self-assembling behavior observed in real ants where ants progressively get attached to an existing support and successively to other attached ants. The artificial ants that we have defined will similarly build a tree. Each ant represents one do...

The spread of non-native invasive species is affected by human activity, vegetation cover, weather, and interaction with native species. We analyzed data from a 17-year study of the distribution of the non-native Argentine ant (Linepithema humile) and the native winter ant (Prenolepis imparis) in a preserve in northern California (U.S.A.). We conducted logistic regressions and used model select...

Ants (Hymenoptera: Formicidae) are social insects and important pests in the urban environment. The main groups of pest ants environment leafcutter house ants. Leaf-cutter cause crescent-shaped defoliation plants, where it causes problems gardens ornamental plants. Domestic human health problems, contaminate food equipment buildings. In this work, we propose an integrated ant management program...

Although mutualism between ants and honeydew-producing hemipterans has been extensively recognized in ecosystem biology, however few attempts to test the hypothesis that mutualism between two alien species leads to the facilitation of the invasion process. To address this problem, we focus on the conditional mutualism between S. invicta and P. solenopsis by field investigations and indoor exper...

The physical concept of quantum entanglement state was applied to cooperative behavior of two ants (agents) pushing a pebble, which is too heavy for one ant, developed by Summhammer. His conventional study showed that the two quantum-inspired ants imitating quantum entanglement state can push the pebble up to twice relative to the two classical ants in independent relation. In order to set up a...