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Naturalist Journeys: Pre-settlement Forests of the Northeast by Charlie Cogbill
March 6 @ 7:00 PM - 8:30 PM
North Branch Nature Center’s annual presentation series featuring the breathtaking travels and fascinating research of naturalists around the world.
Fridays at 7 pm at North Branch Nature Center
Admission by donation
Additional parking on Finch Street across from the NBNC entrance
March 6 – The Presettlement Forests of the Northeast – Charlie Cogbill
The land division surveys from European settlement in North America provide unique evidence of the region’s early forests. Ecologist Charlie Cogbill studied 1640-1850 survey records from across New England and the Middle Atlantic to determine the relative abundance of boreal conifers, northern hardwoods, temperate conifers, and central hardwoods across the region. His research revealed a distinct and narrow tension zone extending across central New England, separating northern hardwood forests (dominated by beech) from the central hardwoods (dominated by oaks) to the south. Although there have been drastic changes in species abundances, forest disturbance, and climate, the presettlement character and position of the tension zone and overall forest biomass remains similar more than 200 years later.
Upcoming 2020 Naturalist Journeys Presentations
March 20 – The moose of Isle Royale and Yellowstone National Parks – Ky Koitzsch
Join wildlife biologist Ky Koitzsch as he shares his experiences skiing in the backcountry wilds of Yellowstone and Isle Royale National Parks with his field partner and wife Lisa to study North America’s most magnificent deer, the moose. In Yellowstone, as an alternative to traditional aerial surveys, the couple implemented cutting-edge, non-invasive genetic and hormonal methods to accurately assess population parameters. On Isle Royale, where researchers have been studying moose and wolves for over 60 years, and where wolves are currently being reintroduced to suppress the growing moose population, Ky and Lisa apply similar non-invasive methods to study how chemical defenses in the moose’s winter browse, balsam fir, affects its mid-winter nutritional condition. Ky will also discuss why moose are in decline across the southern reaches of their North American distribution, including here in New England.