The goal of CCEA is to facilitate and to assist Canadians with the establishment, management and use of a comprehensive viable network of protected areas that represents the diversity of Canada’s terrestrial, marine and other aquatic ecosystems. [...] To that end, the work of CCEA is centred on the following activities: 1. Promoting the value of protected areas for conserving biodiversity and for helping to sustain ecosystems for the environmental, social and economic well being of all Canadians; 2. Providing scientifi c advice and guidance in the design of a nation-wide network of protected areas incorporating both terrestrial and aquatic ecos [...] Phase 2 of the CCEA NPA project was funded with assistance from the Government of the Northwest Territories, the Government of Yukon Territory, and the Government of Canada - Department of Indian and Northern Affairs. [...] The polygons in this layer comprise the these solutions will be more effi cient than others in terms ‘candidate-protected’ areas considered in this study of the amount of land required in order to encompass the (hereafter referred to as “sites”) in both the WCMP and full assemblage of biodiversity. [...] Note that summary data are given of a tie (in terms of rarity), the algorithm selects the for each site in terms of a count of species present (all site with the higher overall species richness; values > 1) and a sum of the coverage (values less than 1 indicate that only a portion of that species’ occurrence • The algorithm continues to add species until all are overlaps with a site, and is import