Invasive moth facilitates use of a native food plant by other native and invasive arthropods

Organisms that invade new habitats exploit new resources or niches and influence native species. Here, we examine how an invasive moth, the parsnip webworm ( Depressaria radiella , formerly D. pastinacella ), facilitates interactions with other arthropods in spatially separated populations of native cow parsnip ( Heracleum maximum ) in the Rocky Mountains (New Mexico and Colorado). We compare this with results on small hogweed ( Heracleum...