Four species of ants (Hymenoptera: Formicidae) are reported as new state records for Hidalgo, Mexico, a with 249 previous native (Guenard et al. 2017, Myrmecol. News 24:83–89). Ant specimens were collected 2 yr part an inventory formicids associated corn (Zea mays L), coffee (Coffea arabica L.), and orange (Citrus sinensis [L.] Osbeck) crops to analyze the structure ant communities in northeast...

Many recent studies of polygynous ants have focused on producing an ecological and reproductive cost-benefit analysis of polygynous systems in order to shed light on how or why it developed over the more common practice of monogyny. Polygyny, the practice of keeping multiple reproductive queens in one colony, has evolved in many ant species, some of which display both polygynous and monogynous ...

Subduction zones are the primary regions on Earth today where crust recycling takes place, and through geological time they have been the sites of continent formation. Many of the key elements (e.g., Th, rare earth elements, Ba, and Be) that are important in understanding crustal growth are sequestered in the sedimentary column and in the uppermost oxidized portions of the volcanic section of o...