Ambophily, not entomophily: the reproduction of the perennial Discaria chacaye (Rhamnaceae: Colletieae) along a rainfall gradient in Patagonia, Argentina

Geographical gradients are useful tools for studying how changing environmental conditions affect communities’ structure and function, and any perceived general pattern can be tested by examining the response of different populations of a given species widely distributed along the focal gradient. We studied populations of the perennial, putatively entomophilous plant Discaria chacaye located along a strong east–west rainfall gradient in the...