The potential for indirect effects between co-flowering plants via shared pollinators depends on resource abundance, accessibility and relatedness.

Carvalheiro, L.G. et al. (including T. Petanidou & T. Tscheulin). 2014. The potential for indirect effects between co-flowering plants via shared pollinators depends on resource abundance, accessibility and relatedness. Ecology Letters, 17(11), pp. 1389-1399.

http://onlinelibrary.wiley.com/doi/10.1111/ele.12342/full