TY - JOUR T1 - Origination, Extinction, and Dispersal: Integrative Models for Understanding Present‐Day Diversity Gradients JF - the american naturalistThe American Naturalist Y1 - 2007 A1 - Roy, Kaustuv A1 - Goldberg, Emma E SP - S71 EP - S85 VL - 170 JO - Am. Nat. ER -