Ken Davis feels this keenly as he reaches retirement age after a half-century career with no one to pass the torch to. For one, there's just not as much demand for paper and other wood products because of low commodity prices and international competition, making it less secure than it once was. The renaissance that farming has undergone in recent years, with an emphasis on food systems and sustainable agriculture, hasn't brought the same energy to logging. [...] Snyder noted that while forests can do just fine on their own, logging can support their health by weeding out infestations and invasive species. With the industry becoming more mechanized, the number of equipment operators is expected to stay about the same, with graders and scalers declining 2 percent and all other logging workers falling 7 percent. "Today you are running a half-million, $600,000 machine, and not only do you need to operate it, you've got to read GPS and computer-based technology equipment, you've got to be able to service and maintain that equipment, you have to know forestry, environmental law, best management practices, tree identification," Doran said.