FOR400Y1 Lecture Notes - Lecture 2: National Parks Act (Canada), United States Forest Service, Millennium Ecosystem Assessment
Document Summary
For400y - lecture 2: using ecological integrity & silviculture to guide forest. Restoration: tackling the norway maple problem (eric davies) Don"t hear his name in ecology and evolutionary biology. Ex: human health is hard to define (physiological, mental) Resistance = ability to resist to change. How to measure nature in terms of ecosystem services. Ecological integrity should be the first priority. When build road, build campsite, restore sites. Metrics tell us if ecosystem is healthy. Similarly, how much ecological degradation are we going to tolerate. Aldo leopold came up with idea of ecosystems bing assembled in trophic level. Flow of energy if have native plants. But now have non-native trees (in toronto >50% are non-native) What escapes the eye however, is a much more insidious type of extinction: the extinction of ecological interactions. Paper: loss of foundation species: consequences for the structure and dynamics of forested ecosystems. Almost half of trees, didn"t even find 1 of those native trees.
