Aquatic macroinvertebrates play an essential role in stream ecosystems. Given the potential metabolic demand, we investigated the impact of increased winter stream temperatures, due to climate change, on aquatic organisms. Macroinvertebrate samples were collected from headwaters and mainstem sites at the Kayaderosseras and Battenkill Rivers in February and March. Organisms in the families Taeniopterygidae, Nemouridae, and Simuliidae may be disproportionately impacted because these families contain many cold-adapted, winter and early spring-emergent species.
