L.  Arellano and Halffter, G., ?Gamma diversity: derived from and a determinant of alpha diversity and beta diversity. An analysis of three tropical landscapes?, Acta Zoologica Mexicana (nueva serie), vol. 90, pp. 27-76, 2003.

L.  Arellano, Leon-Cortes, J. L., and Halffter, G., ?Response of dung beetle assemblages to landscape structure in remnant natural and modified habitats in Southern Mexico?, Insect Conservation and Diversity, vol. 1, pp. 253-262, 2008.

F. Escobar S., Halffter, G., and Arellano, L., ?From forest to pasture: an evaluation of the influence of environment and biogeography on the structure of dung beetle (Scarabaeinae) assemblages along three altitudinal grafients in the Neotropical region?, Ecography, vol. 30, pp. 193-208, 2007.

G.  Halffter and Arellano, L., ?Variación de la diversidad en especies de Scarabaeinae (Coleoptera:Scarabaeidae) como respuesta a la antropización de un paisaje tropical?, in Tópicos sobre Coleoptera de México, J. L.  Navarrete-Heredia, Lopéz, H. E. Fierros, and Burgos-Solorio, A., Eds. Guadelajara, México: Universidad de Guadalajara?Universidad Autónoma del Estado de Morelos, 2001, pp. 35-53.

G.  Halffter and Arellano, L., ?Response of dung beetle diversity to human-induced changes in a tropical landscape?, Biotropica, vol. 34, pp. 144-154, 2002.

G.  Halffter, Favila, M. E., and Arellano, L., ?Spatial distribution of three groups of Coleoptera along an altitudinal transect in the Mexican Transition Zone and its biogeographical implications?, Elytron, vol. 9, pp. 151-185, 1995.

G.  Halffter, Pineda, E., Arellano, L., and S., F. Escobar, ?Instability of copronecrophagous beetle assemblages (Coleoptera: Scarabaeinae) in a mountainous tropical landscape of Mexico?, Environmental Entomology, vol. 36, pp. 1397-1407, 2007.