C. A.  Harvey, Medina, A., Sanchez, D. M., Vilchez, S., Hernandez, B., Saenz, J. C., Maes, J. M., Casanoves, F., and Sinclair, F. L., ?Patterns of animal diversity in different forms of tree cover in agricultural landscapes?, Ecological Applications, vol. 16, pp. 1986-1999, 2006.