@article {60,
	title = {Origination, Extinction, and Dispersal: Integrative Models for Understanding Present-Day Diversity Gradients},
	journal = {the american naturalistThe American Naturalist},
	volume = {170},
	number = {S2},
	year = {2007},
	pages = {S71-S85},
	author = {Roy, Kaustuv and Goldberg, Emma E}
}
