Episode 149: Forest Ecology

Dr. Charles Canham and Dr. Clive Jones rejoin Nature Calls: Conversations from the Hudson Valley in a discussion about Forest Ecology. Charles Canham is senior scientist at the Cary Institute of Ecosystem Studies in Millbrook, New York. He specializes in forest ecology and management. He is also the author of Forests Adrift: Currents Shaping the Future of Northeastern Trees. Dr. Clive Jones is a terrestrial ecologist with expertise in biodiversity and environmental management, also working with the Cary Institute of Ecosystem Studies

The northeast is one of the country’s most thoroughly forested regions, with forests covering two-thirds of the nine northeastern states. But that statistic belies the extraordinary wave of logging and clearing of land for agriculture that followed European settlement 400 years ago. In the Mid-Hudson, forest cover declined to a low of 15% at the turn of the twentieth century. Today, that has rebounded to over 60%.

Trees were the first native plants to recolonize. Today, decades later, these reclaimed forests have understories of shrubs and herbaceous species. It’s interesting to note that a large, well-established tree holds its position for many years, even as the climate changes. Northeastern forests today are a critical source of carbon sequestration to combat climate change and can potentially provide a renewable energy source.

That said, our forests are under threat from development, climate change, deer browse, and perhaps most worrisome, the introduction of invasive pests and pathogens. In addition to spongy moths, Dutch elm disease and the emerald ash borer have done significant damage to the elm and ash tree populations. Dogwoods are under threat with anthracnose. Pine and oak trees have their own issues.Despite these threats, there are still lots of reasons for optimism.

In this discussion, you’ll gain an appreciation of the flexibility and resiliency demonstrated by our forests.

Hosts: Jean Thomas and Teresa Golden

Guests: Charles Canham and Clive Jones

Photo by: Teresa Golden

Production Support: Linda Aydlett, Deven Connelly, Teresa Golden, Tim Kennelty, Xandra Powers, Annie Scibienski, Robin Smith