4/26/26: A Hike Down the Hemlock Trail, part 2

Host/Producer: Glen Mittelhauser

In this episode, Glen continues a discussion with Rich MacDonald of the Natural History Center during a winter walk in Acadia National Park, reflecting on the value of long-term observation in understanding ecological change. Drawing on decades of field experience, from bird banding studies to a 2002 kayak expedition around the Gulf of Maine, Rich discusses how shifting baselines, climate change, and evolving research questions shape our understanding of coastal ecosystems, from changing bird populations to the increasing presence of species like sea turtles