Marshall, A.  J., S. A. Wich, and M. Ancrenaz. 2016. Fresh strategies to save orangutans. Nature. 535: 493.

Marshall, A. J., E. Meijaard, E. Van Cleave, and D. Sheil. 2016. Charisma counts: the presence of great apes affects the allocation of research effort in the paleotropics. Frontiers in Ecology and the Environment. 14:13-19.

Meijaard, E. S. A. Wich, M. Ancrenaz, and A. J. Marshall. 2012. Not by science alone: why orangutan conservationists must think outside the box. Annals of the New York Academy of Sciences. 1249: 29–44.

Meijaard, E., A. Welsh, M. Ancrenaz, S. Wich, V. Nijman, and A. J. Marshall. 2010. Declining orangutan encounter rates from Wallace to the present suggest the species was once more abundant. PLoS One. 5(8) : e12042. doi:10.1371/journal.pone.0012042. 

Marshall, A. J., R. Lacy, M. Ancrenaz, O. Byers, S. Husson, M. Leighton, E. Meijaard, N. Rosen, I. Singleton, S. Stephens, K. Traylor-Holtzer, S. Utami Atmoko, C. P. van Schaik, and S. A. Wich. 2009. Orangutan population biology, life history, and conservation: Perspectives from PVA models. In S. A. Wich, S. Utami, T. Mitra Setia, and C. P. van Schaik (eds). Orangutans: Geographic variation in behavioral ecology and conservation. Oxford: Oxford University Press. Pp. 311–326.

Marshall, A. J., Nardiyono, L. M. Engström, B. Pamungkas, J. Palapa, E. Meijaard, and S. A. Stanley. 2006. The blowgun is mightier than the chainsaw in determining population density of Bornean orangutans (Pongo pygmaeus morio) in the forests of East Kalimantan. Biological Conservation 129: 566-578.