Macronutrient Regulation in the Tropical Terrestrial Ant Ectatomma ruidum (Formicidae): A Field Study in Costa Rica.

Using the geometric framework for the first time in a field study of ant nutritional biology, we show that Ectatomma ruidum colonies actively regulate protein–carbohydrate intake, self-selecting a carbohydrate-biased diet. These data, combined with quantitative recruitment data, provide a more comprehensive understanding of colony-level nutritional requirements of ants. Abstract in Spanish is available at [ABSTRACT FROM AUTHOR]