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This report is intended to support development and application of an ecosystem representation analysis (ERA) in the Prince George Timber Supply Area (TSA). It provides descriptions of and a rationale for ecosystem representation and the biological richness criterion and associated indicators that the ecosystem representation approach is a component of. It presents a set of ecosystem groupings, outlines the steps and data required for completing an ERA and discusses the use of ecosystem representation as a coarse-filter element of a strategy to sustain biological richness in managed forests. The Prince George TSA has high provincial responsibility for sixteen BEC variants, which should be the focus of an upcoming ecosystem representation analysis. This report presents draft ecosystem groupings for three areas of the Prince George TSA, which were grouped on the basis of similarities in climate, topography and Natural Disturbance Unit (NDU). We note that an ERA is the coarse-filter component of a management and monitoring framework that can provide the basis of ecological management objectives of Sustainable Forest Management Plan (SFMP) and certification efforts. The ERA is not intended as a ?stand alone? approach: it is a component of a criterion and associated indicators that are hierarchical in nature, ranging from ?coarse-filter? ecosystem representation (Indicator 1), through ?intermediate filter? habitat elements (Indicator 2) and finally fine filter species-based effectiveness monitoring (Indicator 3).
prepared by Ralph W. Wells and Devon Haag.
Wells, Ralph W., Haag, Devon. 2006. Implementing ecosystem representation for the Prince George Timber Supply Area. Forest Investment Account (FIA) - Forest Science Program. Forest Investment Account Report. FIA2006MR187
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