00563nam a22001932  4500001001100000005001700011008004100028020001700069040001500086100003500101245007900136250001300215260003200228300001700260650002500277700003200302700003200334852000300366000002112520151217145931.0120112s         xx           000 0 eng d  a1405156585 :  aKABUcKABU1 aTownsend, Colin R.@000015530810aEssentials of ecology /cColin R. Townsend, Michael Begon, John L. Harper.  a3rd  ed.  aOxford :bBlackwell,c2008.  axii, 510  p. 0aEcology.@00001553071 aBegon, Michael.@00001553061 aHarper, John L.@00001553091