Dennis received his M.S. in Environmental Sciences from the University of Rhode Island in 2003 and his B.A. in Philosophy and Psychology from Brown University in 1995. His graduate research focused on the assessment of vernal pools as breeding habitat for vulnerable amphibian species. Prior to joining the Park Service in 2007, Dennis worked with the URI Environmental Data Center on a wide array of natural resource related GIS, web design, and data management projects for academic and government clients. His professional experience has included volunteer positions with the National Park Service working on grassland habitat restoration, as well as piping plover monitoring with the Massachusetts Audubon Society. His expertise includes wetland ecology, habitat conservation and restoration, and the use of GIS and database technology in natural resource inventory and monitoring efforts. Dennis is currently the Data Manager for the National Park Service, Northeast Coastal and Barrier Network, Inventory and Monitoring Program.