Pride, R. Ethan - In: Behavioral Ecology 16 (2005) 3, pp. 550-560
individuals maintain membership in groups of favorable size to maximize fitness. Here I examine fecal cortisol concentrations as a … normal and low tamarind fruit availability. I test the hypotheses that there is an optimal group size at which cortisol is … determined fecal cortisol concentrations using a radioimmunoassay. Expressing these as residuals from monthly population means to …