Figure 1From: Community impacts of anthropogenic disturbance: natural enemies exploit multiple routes in pursuit of invading herbivore hostsMap indicating Megastigmus stigmatizans sampling locations and the major European Quercus section Cerris oak distributions. Green shading indicates the native distribution of Q. suber, blue the native distribution of Q. cerris, and orange the introduced distribution of Q. cerris. Sites are numbered as in Additional file 1.Back to article page