NICHE CONEPT: ISSUES OF SPECIES CO-EXISTENCE
CO-EXIST IF POPULATIONS SUBJECT TO DIFFERENT CONTROLS (RESOURCE LIMITS OR OTHER POPUL. REG. MECHANISMS)
CO-EXIST IF OCCUPY DIFFERENT SPACES--DIFFERENT HABITATS WITHIN SAME GENERAL AREA
CO-EXIST WITHIN SAME COMMUNITY IF THEY RELATE DIFFERENTLY TO RESOURCES AND/OR OTHER SPECIES IN COMMUNITY