FLAGSTAFF, Ariz. — Fallout from the federal government shutdown is hurting Native Americans as dwindling funds hamper access to health care and other services. The pain is especially deep in tribal communities with high rates of poverty and unemployment, where one person often supports an extended family. The effects were being felt far and wide. In New Mexico, a lone police officer patrolled a Native American reservation larger in size than Houston on a shift that normally has three people, responding to multiple car wrecks during a snow storm, emergency calls and requests for welfare checks. Elsewhere, federally funded road maintenance programs are operating with skeleton crews and struggling to keep roads clear on remote reservations.