Monthly changes in the caloric values of the leaves of four shrubby and four tree-dwelling palmae species Monthly changes in caloric values of five shrubby Palmae species leaves Monthly Changes of SOD and POD Activities in Primula and Their Relations Monthly changes of ground arthropods in artificial Caragana intermedia plantations in desert steppe MONTHLY CHANGES IN THE CALORIC VALUES AND ASH CONTENTS OF FIVE PHOENIX SPECIES IN PALMAE