Regulation of atmospheric chemical composition Regulation of global temperature, precipitation, and other biologically mediated processes Capacitance, damping and integrity of ecosystem response to environmental changes Regulation of hydrological flows. Storage and retention of water. Retention of soil within an ecosystem. Soil formation processes. Storage, internal cycling, processing, and acquisition of nutrients. Recovery of mobile nutrients and removal or breakdown of excess or xenic compounds. Movement of floral gametes. Trophic-dynamic regulations of populations. Habitat for resident and transient populations. Proprtion of gross primary production extractable as food. Proportion of gross primary production extractable as raw materials. Sources of unique biological materials and products. Providing opportunities for recreational activities. Providing opportunities for non-commercial uses. Transportation facility An aggregation of several services