US – Egypt Joint Science and Technology Board. Conservation and Sustainable Use of Moringa peregina. $29,440. 7/03-8/07 with Raouf Mustafa and Saad Zaghloul Co-PI's.
Spatially and Temporally Explicit Breeding Structure Analyses for a Tropical Dry Forest Tree Species, Enterolobium cyclocarpum - $350,000. 8/01-7/07 with Peter E. Smouse Co-PI.
Genetic Consequences of Pre-Columbian Agave Cultivation in Central Arizona - $300,000. 8/02-8/07. With Kathy Parker (PI) and Robert Kuzoff (Co-PI).