00272nam a2200133Ia 4500020001900000082001000019100002200029245003900051250000600090260002000096300000800116500000800124650000600132  a0-13-3 18066-9  a574.5  aStiling, Peter D. 0aEcology: Theories And Applications  a-  aNew JerseybPHI  a539  a162  a-