Conservation, Ecology and Systematics of Crocodiles in West and Central Africa. This research program is an interdisciplinary effort to examine the ecology and systematics of the 3 crocodile species native to western Africa such that more effective conservation and management programs can be designed for them. For example, we are looking at the evolutionary history of Nile (Crocodylus niloticus) and dwarf (Osteolaemus tetraspis) to determine exactly how many taxa are in Africa. Until recently only one species of each was recognized, however, thanks to this and other projects we now know there are 2 different Nile crocodiles and 3 different dwarf crocodiles, all of which have very different conservation needs. A new phase of this program will be looking at the ecology of the slender-snouted crocodile (Mecistops cataphractus), the least-known crocodilian in the world, to protect its last known robust populations. This species has been virtually eradicated from 50% of its former range and is recognized by international authorities as one of the top 7 crocodiles species for priority conservation action. As part of the field effort identifying and mitigating threats against these species, capacity-building of local West and Central African students is prioritized to ensure the long-term sustainability of our efforts.