M. Clara Castellanos, S., F. Escobar, and Stevenson, P. R., ?Dung beetles (Scarabaeidae: Scarabaeinae) attracted to woolly monkey (Lagothrix lagothricha Humboldt) dung at Tinigua National Park, Colombia?, The Coleopterists Bulletin, vol. 53, pp. 155-159, 1999.

F. Escobar S., ?Diversidad de Coleopteros coprofagos (Scarabaeidae: Scarabaeinae) en un mosaico de habitats en la reserva natural Nunak, Guaviare, Colombia?, Acta Zoologica Mexicana (nueva serie), vol. 79, pp. 103-121, 2000.

F. Escobar S., ?Seleccion de habitat y comportamiento sexual de Sulcophanaeus velutinus (Murray 1856) (Coleoptera: Scarabaeidae: Scarabaeinae) en un bosque de montana en Colombia?, Acta Zoologica Mexicana (nueva serie), vol. 90, pp. 307-310, 2003.

F. Escobar S., ?Feeding Habitats and distributional records of 11 species of Neotropical Scarabaeinae (Coleoptera: Scarabaeidae)?, The Coleopterists Bulletin, vol. 57, pp. 131-132, 2003.

F. Escobar S., ?Diversity and composition of dung beetle (Scarabaeinae) assemblages in a heterogeneous Andean landscape?, Tropical Zoology, vol. 17, pp. 123-136, 2004.

F. Escobar S. and de Ulloa, P. C., ?Space and time distribution along a succesional gradient of coprofagous coleopterans (Scarabaeinae, Aphodiinae) in a tropical montane forest, Narino Colombia?, Revista De Biologia Tropical, vol. 48, pp. 961-975, 2000.

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.

F. Escobar S., Lobo, J. M., and Halffter, G., ?Altitudinal variation of dung beetle (Scarabaeidae: Scarabaeinae) assemblages in the Colombian Andes?, Global Ecology and Biogeography, vol. 14, pp. 327-337, 2005.

F. Escobar S., Lobo, J. M., and Halffter, G., ?Assessing the origin of Neotropical mountain dung beetle assemblages (Scarabaeidae: Scarabaeinae): the comparative influence of vertical and horizontal colonization?, Journal of Biogeography, vol. 33, pp. 1793-1803, 2006.

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.

C. A.  Medina, S., F. Escobar, and Kattan, G. H., ?Diversity and habitat use of dung beetles in a restored Andean landscape?, Biotropica, vol. 34, pp. 181-187, 2002.

J.  Noriega, Solis, C., S., F. Escobar, and Realpe, E., ?Escarabajos coprofagos (Coleoptera: Scarabaeidae) de la provincia de la Sierra Nevada de Santa Marta?, Biota Colombiana, vol. 8, pp. 77-86, 2007.