My main research is concerned with several levels of organization, from individuals
of colonies to populations of colonies. Insect societies offer examples of biological
systems in which the component parts (individuals) seem to be fairly simple, and there
isn't any hierarchical control among the individuals. The whole colony performs complex,
integrated behavior via self-organization processes. I would like to understand how
colony organization emerges from simple behavioral rules and how colonies adjust effort
to solve colony level tasks. These processes of task allocation require individual
insects to make individual decisions based only on local information. The emergence
of complex patterns from the interactions of the agents is an exciting and "hot" field
in current science, and this interests me far beyond the scope of the problems related
to insect societies. More research interest are here: faculty.etsu.edu/karsai/publications.html
Schmickl T, Karsai I. 2014 Sting, carry and stock: How corpse availability can regulate
de-centralized task allocation in a Ponerine ant colony. PLoS ONE 9(12), e114611.
Hamann H., Karsai I. and Schmickl T. (2013). Time delay implies cost on task switching:
a model to investigate the efficiency of task partitioning. Bulletin of Mathematical
Pokhrel L. Karsai I., Laughlin T.F. and Hamed M.K. (2013). Dorsal body pigmentation
and sexual dimorphism in the marbled salamander (Ambystoma opacum). Ethology Ecology and Evolution 25/3:214-226.
Laughlin A.J., Karsai I. and Alsop F.J. III (2013). Habitat partitioning and niche
overlap of two forest thrushes in the southern Appalachian spruce-fir forests. The
Karsai I. and Phillips M.D. (2012). Regulation of task differentiation in wasp societies:
A bottom-up model of the "common stomach" J. Theor. Biology 294:98-113.
Knisley J., Karsai I. and Schmickl T. (2011). Compartmental models of migratory dynamics.
Math. Model. Nat Phenom. 6:245-259.
Karsai I. and Schmickl T. (2011). Regulation of task partitioning by a "common stomach":
a model of nest construction in social wasps. Behavior Ecology 22:819-830.
Karsai I and Kampis G. (2011). Connected fragmented habitats facilitate stable coexistence
dynamics. Ecological Modeling 222:447-455.