WESTERN OREGON—…In the 1980s, Jerry Franklin, forest ecologist became a hero to many conservationists thanks to research that helped lead to a controversial 1994 plan protecting millions of hectares of old-growth forests in the Pacific Northwest from logging. But one morning this past summer, Franklin stood on a dirt road in southwest Oregon gazing at a logged hillside that was the antithesis of a lush, old-growth forest. The chainsaws had left stumps, piles of tangled limbs, and a smattering of standing trees, along with bushes and grass. “The scene of the crime,” he declared, with a hint of irony. Today, in the twilight of his life, the 80-year-old scientist has become a champion of this far different landscape, which he sees as vital to supporting a full range of forest species.