Moreover, every year wildlife trade generates an estimated USD 15 billion worldwide, excluding large-scale commercial trade in fish and timber (OECD, 2008). While it is difficult to estimate both the financing needs for optimal biodiversity and ecosystem service provision, and the existing financing flows, it is clear that the financing gap is large. Annual financial flows for biodiversity have been estimated at USD 36-38 billion per year, about half of which is delivered domestically in the European Union, the United States, and China (Parker and Cranford, 2010).