Guisande Natural selection should lead to reduced overlap in Facultad Barbieri Densy 230E Ciencias, resource use mainly because of the loss of fitness caused Universidad de Vigo, Lagoas-Marcosende, Vigo, Spain by competition in the region of niche overlap, and the fact e-mail: Overlap reduc- tion may depend on the way in which food is gathered and F. Ventura the type of food. DiagonalBarcelona, Spain trophic parts, microhabitats frequented and temporal use of these habitats. Of these aspects, the least studied[…]
