Memorial services are scheduled Thursday at 1 p.m. for Dr. Walter P. Cottam, who died Dec. 22 in Gresham, Ore.

Dr. Cottam, 94, was an eminent Utah ecologist and conservationist and professor emeritus of botany at the University of Utah. The service will be at Larkin Mortuary, 260 E. South Temple. The family suggests donations to the Utah State Arboretum.Dr. Cottam was an outspoken advocate of conservation long before the environmental movement began in the United States. He lectured and wrote widely about the necessity of conserving water, soil and plant resources.