Elisha is a SACEMA Ph.D. student, working under the supervision of Prof John Hargrove. The thrust of his Ph.D. project is to estimate the probabilities of extinction for tsetse fly populations (Glossina spp) in field situations where meteorological conditions vary continuously with time. Before joining SACEMA, Elisha did his undergraduate studies (First Class Honours) and MSc (Distinction) in Mathematics at the University of Ilorin, Nigeria. He has four years of teaching experience in the Department of Mathematics of the Federal University Oye-Ekiti, Nigeria. He taught undergraduate calculus, linear algebra, geometry, and other mathematical subjects, both as a graduate assistant and as an assistant lecturer.