Ratikainen, Irja I.; Wright, Jonathan; Kazem, Anahita J.N. - In: Behavioral Ecology 21 (2010) 5, pp. 1067-1072
Variance sensitivity theory predicts that optimal foragers should take into account not only the mean but also the variance in rewards offered by alternative foraging options. Whereas a positive energy budget should favor variance aversion, a negative one should favor variance-prone choices. The...