Understanding the molecular basis of how behavioural states are established, maintained
and altered by environmental cues is an area of considerable and growing interest …

Since the time of Charles Darwin, studies of interspecific hybridization have been a major
focus for evolutionary biologists. Although this phenomenon has often been viewed as …

Biotic invasions can predominantly alter the dynamics, composition, functions, and structure
of natural ecosystems. Social insects, particularly ants, are among the most damaging …

Female parthenogenesis, or thelytoky, is particularly common in solitary Hymenoptera. Only
more recently has it become clear that many eusocial species also regularly reproduce …

Species delimitation has been invigorated as a discipline in systematics by an influx of new
character sets, analytical methods, and conceptual advances. We use genetic data from 68 …

Ants provide remarkable examples of equivalent genotypes developing into divergent and
discrete phenotypes. Diploid eggs can develop either into queens, which specialize in …

Hybridization in isolated populations can lead either to hybrid breakdown and extinction or
in some cases to speciation. The basis of hybrid breakdown lies in genetic incompatibilities …

Hybridization is not a mere reproductive dead end but has been suggested to play a central
role in speciation, for example, by introducing adaptive genetic variation. Our previous study …

Ants play a key role in improving the structure and function of local communities. They
interact with plants, herbivores, predators and parasitoids and are able to change their …

Ants of the myrmicine Tetramorium caespitum (Linnaeus, 1758)/T. impurum (Foerster, 1850)
complex have challenged taxonomy for long. Schlick-Steiner et al.(2006) made plausible …