This study will assess adaptation and trophic resiliency to climate change using old fields, grasshoppers and spiders. We will study eight populations of red-legged grasshopper (Melanoplus femurrubrum) from locations experiencing different temperature variances. This will be done in their home fields (e.g. Harvard forest) as well as a southern (CT) and northern (VT) common garden. We will assess whether these populations respond differently to predators, including their physiology and impacts on plants and ecosystem function (e.g. soil carbon sequestration).