MacroCAIC: revealing correlates of species richness by comparative analysis


*  Correspondence and present address: Paul-Michael Agapow, Department of Applied Statistics, University of Reading, Reading RG6 6FN, U.K., E-mail:


Abstract. Studies of species richness have been hampered by the use of methods that fail to account for phylogenetic non-independence of character states. MacroCAIC is a computer program that extends the method of phylogenetically independent contrasts to encompass species-richness data. It examines user-selected characters for correlation with species richness, thus allowing clearer identification of the factors driving large-scale patterns of diversity.