In an attempt to boost his image on the environment, President Bush visited the Everglades National Park yesterday and called attention to what he said would be budget increases for Everglades restoration. But Mary Munson, Florida director of the National Parks Conservation Foundation, said the president’s proposed spending is less than what former President Clinton asked for last year. Enviros had kind words, however, for Fran Mainella, Bush’s choice to head the National Park Service. Mainella currently leads Florida’s Division of Recreation and Parks. The latest Washington Post-ABC News poll found that public support for Bush has dropped 8 percentage points since late April, to 55 percent, in part because of concerns over his energy and environmental policies.