Définition : highest level of animal sociality a species can attain. Includes cooperative brood care (including care of offspring from other individuals), overlapping generations within a colony of adults, and a division of labor
Définition : where individuals of the same species (conspecifics), maintain spatial proximity with one another over time with mechanisms of social attraction
Définition : A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)