Extended Data Fig. 1: Field experiment hoop houses.
From: Self-perpetuating ecological–evolutionary dynamics in an agricultural host–parasite system
a, Photograph of a hoop house experimental screen cage with lucerne harvested asynchronously in four strips (photo credit A. R. Ives). b, Google Earth satellite image of the four hoop houses in September, 2010. (A different experiment was being performed that compared treatments within and outside the hoop houses).
