Ants retrieve visual memories to guide them en route to their goal. A new study shows that wood ants use object width to retrieve the correct visual memory at the appropriate position along their route. A computational model that accurately reproduces the ants' behaviour raises questions about the underlying mechanisms.

Title of Dissertation: ROLE OF PEACH [PRUNUS PERSICA (L.) BATCSH] EXTRAFLORAL NECTARIES IN MEDIATING NATURAL ENEMY-HERBIVORE INTERACTIONS Clarissa Ruth Mathews, Doctor of Philosophy, 2004 Dissertation Directed By: Professor Dale G. Bottrell Department of Entomology Extrafloral nectaries (EFNs) are reported to benefit some plants when ants (Hymenoptera: Formicidae) use their secretions and fend ...

The spider Myrmecicultor chihuahuensis Ramírez, Grismado & Ubick (Myrmecicultoridae) was described in 2019 and hypothesized to be a myrmecophile, living inside the nests of Novomessor (Myrmicinae) perhaps also Pogonomyrmex ants. To test hypothesis that M. are chemical mimics their host ants, we carried out behavioral bioassays observe interactions between spiders We compared cuticular hydrocarb...

Moffett (2012) misrepresents the position of Gordon, Heller, and others on supercolonies. We recognize the existence of Argentine ant supercolonies, populations of colonies all descended from common ancestors. A substantial body of work shows the common origins of certain Argentine ant populations of colonies, or supercolonies (e.g., Vogel et al. 2010). We consider that a colony, unlike a super...

harvester ants are known as one of the most renowned bio-disturbances in the arid and semi-arid ecosystems that affecte vegetation by collecting seeds and harvesting plants. it seems that physiognomy of plant association in steppe shrub land of roodshoor, saveh, iran has been highly changed by harvester ants’ activities that caused to conduct this research. the study was carried out on active a...

INTRODUCTION We studied the richness and abundance of ant species, their bacteria and the bacteria isolated from patient clinical samples. METHODS Ants were collected with baited traps at 64 sites in a public hospital in São Luis, State of Maranhão, Brazil. RESULTS In total, 1,659 ants from 14 species were captured. The most frequent species were Crematogaster victima, Solenopsis saevissima...

Attine ants engage in a quadripartite symbiosis with fungi they cultivate for food, specialized garden parasites, and parasite-inhibiting bacteria. Molecular phylogenetic evidence supports an ancient host-pathogen association between the ant-cultivar mutualism and the garden parasite. Here we show that ants rear the antibiotic-producing bacteria in elaborate cuticular crypts, supported by uniqu...