Advances in ecological research : Vol. 9 / edited by M. Begon, A.H. Fitter, A. Macfadyen. Advances in ecological research. Ecological research Begon, Michael. Fitter, Alastair. Macfadyen, A. (Amyan) Ecology. Biology. QH540 .A2321 1991eb 591.5072 MAA Includes index New York : Academic Press, 1991. 1991. 1991 Text viii ,384p. : eng Advances in ecological research ; 21 Advances in ecological research ; 21.