S. D.  Johnson, Moré, M., Amorim, F. W., Haber, W. A., Frankie, G. W., Stanley, D. A., Cocucci, A. A., and Raguso, R. A., ?The long and the short of it: a global analysis of hawkmoth pollination niches and interaction networks?, Functional Ecology, vol. 31, pp. 101-115, 2017.