TY - GEN AU - Gard,T C TI - Top predator persistence in differential equation models of food chains: the effects of omnivory and external forcing of lower trophic levels SN - 0303-6812 PY - 1982///1202 KW - Animals KW - Appetitive Behavior KW - Food Supply KW - Mathematics KW - Models, Psychological KW - Predatory Behavior N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S UR - https://doi.org/10.1007/BF00275394 ER -