===== Demand for Ecosystem Services ===== Ecosystem service demand expresses the ecosystem goods and services currently consumed or used in a particular area over a given time period, not considering where ecosystem services actually are provided (Burkhard et al. 2012)((Burkhard, B.; Kroll, F.; Nedkov, S. & Müller, F. (2012): Mapping ecosystem service supply, demand and budgets. In: Ecological Indicators 21, p. 17–29.)). The demand can also express the amount of a service required or desired by society (Villamagna et al. 2013)((Villamagna, A. M.; Angermeier, P. L. & Bennett, E. M. (2013): Capacity, pressure, demand, and flow. A conceptual framework for analyzing ecosystem service provision and delivery. In: Ecological Complexity 15, p. 114–121.)). ~~DISCUSSION~~{{tag> "AlpES_project"}}