00371nam a2200145Ia 4500008004100000020001500041041000800056082000800064100001900072245006400091250001200155260003200167653001200199653001400211160808s1996    xx            000 0 eng d  a1405111178  aeng  a577  aBegon, Michael  aEcology:bfrom individual to ecosystems /cby Michael Begon  a4th ed.  aOxford :bBlackwell,c1996.  aEcology  aEcosystem