Thornton, Ian W. B., Runciman, David, Cook, Simon, Lumsden, Linda F., Partomihardjo, Tukirin, Schedvin, Natasha K., Yukawa, Junichi, and Ward, Seamus A. (2002) How important were stepping stones in the colonization of Krakatau? Biological Journal of the Linnean Society, 77 (3). pp. 275-317.

Cook, S., Singidan, R., and Thornton, I.W.B. (2001) Colonization of an island volcano, Long Island, Papua New Guinea, and an emergent island Motmot, in its caldera lake. IV. Colonization by non-avian vertebrates. Journal of Biogeography, 28 (11-12). pp. 1353-1363.

Shipper, Clinton, Shanahan, Mike, Cook, Simon, and Thornton, Ian W.B. (2001) Colonization of an island volcano, Long Island, Papua New Guinea, and an emergent island, Motmot, in its caldera lake. III. Colonization by birds. Journal of Biogeography, 28 (11-12). pp. 1339-1352.

Thornton, I.W.B., Cook, S., Edwards, J.S., Harrison, R.D., Shipper, C., Shanahan, M., Singadan, R., and Yamuna, R. (2001) Colonization of an island volcano, Long Island, Papua New Guinea, and an emergent island, Motmot, in its caldera lake: VII. overview and discussion. Journal of Biogeography, 28 (11-12). pp. 1389-1408.