ESP is an application for evaluating population differentiation over time, based on Monte Carlo simulations.  As a result, ESP facilitates hypothesis testing through parametric bootstrapping.  Uses include:

• Evaluating the likelihood of particular values for population parameters, such as rate of gene flow and effective population size.
• Evaluating the likelihood of particular colonization scenarios.
• Providing guidance when designing a sampling regime and choosing molecular markers.
• Providing a teaching tool that illustrates how gene genealogies evolve over time in the under drift, gene flow and mutation.

	ESP for PPC Macintosh. Program will download as a binhexed self expanding archive. (Mac OS9 application only, sorry! This program will no longer be updated.)
	Citation:   Bohonak, A. J., N. Davies, F. X. Villablanca, and G. K. Roderick. 2001. Invasion genetics of New World medflies: testing alternative colonization scenarios. Biological Invasions 3: 103-111.
	ESP manual