Walking Tree Line: Changes in the Arctic and Alpine Forest Ecotone over a 1,000 km Climatic Gradient across Alaska’s Brooks Range

Roman J. Dial, Alaska Pacific University, Anchorage, AK, United States, Colin Taylor Maher, University of Montana, Missoula, MT, United States, Rebecca E Hewitt, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States and Patrick Sullivan, University of Alaska Anchorage, Anchorage, AK, United States