CBB Seminar: Trade-offs and synergies in long-term forest ecosystem management: Timber, birds and deer in northern Michigan, USA Event as iCalendar

09 May 2013

18 - 18pm

Venue: Tāmaki Campus, University of Auckland, Building 733 Rm 201

Host: Centre for Biodiversity and Biosecurity

James Millington
King’s College London

Managed forest ecosystems are expected to provide timber, wildlife habitat and recreation opportunities (e.g., deer hunting). In many managed forests selection harvesting intends to mimic natural small-scale canopy disturbances by removing single to small groups of trees. However, several factors, including deer that browse juvenile trees, can limit the expected subsequent recruitment of understory tree saplings to the forest canopy, threatening the long-term sustainability of forest market (timber) and non-market (wildlife habitat) values. Here, I discuss an investigation into the combined long-term impacts of variable tree regeneration and timber management on forest stand structure, bird occupancy probabilities, and timber production in the northern hardwood forests of Michigan's Upper Peninsula. This investigation includes the use of empirical field data to quantify relationships between vegetation, wildlife and other variables, the use of these relationships to construct a computer simulation model, and use of that model to identify long-term forest management synergies and trade-offs.

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