NY: Endangered Karner blue butterfly exceeds recovery goals

"The Karner blue butterfly has exceeded recovery goals in the rare New York habitat where it was discovered by Russian author Vladimir Nabokov in the 1940s, officials announced Thursday."

"The butterfly, federally listed as endangered 25 years ago, is doing well in the sandy pine barrens west of Albany, the Albany Pine Bush Preserve Commission said. The population has grown from less than 1,000 to more than 15,000 in 10 years."

"The 2003 federal Karner blue recovery plan for the 3,300-acre Albany Pine Bush Preserve set a goal of 3,000 as the minimum population for survival."