Publications

contiguous distribution of two species of cebus monkeys in el tuparro national park, colombia.	the geographic distribution of two congeneric monkeys (cebus albifrons and c. apella) was studied in el tuparro national park in the llanos of eastern colombia. extensive trips were undertaken by land and river to collect 268 precisely located groups of these two species. the distributions of these monkeys were generally mutually exclusive and parapatric, contrasting with their known sympatry in closed-canopy rainforest farther to the south. the replacement of one species by the other was abrupt ...	1985	31986821
megaloblastic anemia and the requirement for folic acid in the cebus monkey (cebus albifrons).	to study the development of folic acid deficiency, nine 3-year-old cebus monkeys (cebus albifrons) were fed purified diets containing varying amounts of added folic acid. monkeys fed the diet without added vitamin stopped growing and then lost weight. macrocytic anemia and leukopenia developed, and megaloblastic changes were observed in precursors of both erythrocytes and leukocytes in the bone marrow. urinary excretion of formiminoglutamic acid was increased significantly in these animals compa ...	1982	32197568