Ecological Archives A025-035-A8

Heidi Liere, Tania N. Kim, Benjamin P. Werling, Timothy D. Meehan, Douglas A. Landis, and Claudio Gratton. 2015. Trophic cascades in agricultural landscapes: indirect effects of landscape composition on crop yield. Ecological Applications 25:652661. http://dx.doi.org/10.1890/14-0570.1

Appendix H. Figure showing the nonlinear relationship between aphid abundance and soybean yield in 2011 and 2012.

FigH1

Fig. H1. Nonlinear relationship between aphid abundance and soybean yield in 2011 (gray) and 2012 (black). Points represent mean abundance of soybean aphids (or yield) per site in open (open circles) and closed (filled circles) cages. y = -3.098x2 + 13.72x + 9.0062; P linear = 0.01, P polynomial << 0.01, Fmodel = 13.55, df = 2,109; P <<0.01.


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