@article {20529,
	title = {Pollinator shifts drive increasingly long nectar spurs in columbine flowers},
	journal = {Nature. London},
	volume = {447},
	year = {2007},
	note = {DOI:10.1038/nature05857; two pages of supplementary data online at www.nature.com/nature.; ; ;},
	month = {2007},
	pages = {706-709},
	keywords = {AFLP, AQUILEGIA, BAYESIAN INFERENCE, BOMBUS, COEVOLUTION, DNA, HUMMINGBIRDS, PHYLOGENY, POLLINATION, POLLINATOR SHIFT, POLLINATOR SPECIFICITY, SPHINGIDAE},
	author = {Whittall, J. B. and Hodges, S. A.}
}
