My research focuses on how the environment influences primate abundance and social organization and how primates affect their environment through seed dispersal and herbivory.  Given the plight of primates, I have applied this information to conservation, which has led me to research the human dimension of conservation. Now with what I have personally witnessed with respect to the slaughter of elephant populations in Africa, I am also turning to study elephant population dynamics and their ecological roles in forest ecosystems. One of the initially unplanned, but extremely fortunate outcomes of this research has been my ability to study the drivers of long-term environmental change in Kibale National Park, Uganda, where I have worked for over 27 years. Read more