I conducted research looking at herbivores, detritivores, pollinators, and predators. We investigated several species of dominant, non-native plants in the Mid-Atlantic (amur honeysuckle, porcelainberry, autumn olive, callery pear, Japanese knotweed, Japanese stiltgrass, multiflora rose, norway maple, orchardgrass, Queen Anne’s lace, and wineberry). If there’s specific questions you have for these species or their impacts on arthropods, let me know and I can try to answer to the best of my ability.
There have been studies looking at how pollinators respond to non-native host plants, and in general, when native plants are displaced by non-native plants in the landscape, you lose the specialists associated with them. So non-native plants that have abundant floral resources like Japanese honeysuckle, for example, may benefit generalist pollinators at the cost of losing the specialists in the environment. It’s also been shown that non-native pollinators benefit from non-native plant hosts in the landscape too–honey bees do well with non-natives from their own range–and this can lead to further difficulties with conserving native pollinators.
Also, in response to how herbivores could avoid plant defenses, some secondary plant compounds are stored in the vacuoles of plant cells, which needs to be ruptured to release them, such as when a caterpillar chews on a leaf. If you have piercing-sucking mouthparts like an aphid, for example, you can sometimes circumvent those defenses by eating around them or avoiding those plant cells entirely and going for the vascular tissues.