The Atlantic Canada Conservation Data Centre (AC CDC) compiles and provides objective data about biological diversity in Atlantic Canada. The AC CDC's expertise and data represent the single most comprehensive and current source of information about Atlantic Canada's biodiversity. Our database includes almost 2 million geo-located records of species occurrences, approximately 20% of which represent species of conservation concern. Our data is widely consulted by federal and provincial government departments, NGOs, industry, researchers, students, and many other organizations throughout Atlantic Canada. Our outstanding staff expertise in botany, zoology, landscape ecology and GIS enable us to conduct accurate field inventories and status assessments, and to make significant contributions to conservation planning and decision making.