000			00953nam a2200181 4500
245			_aEcology. _cMilton Keynes
100			_aKeynes, Milton
260			_aGreat Britain. _bOpen University Press _cc1974
300			_av.; 28cm.-
490			_aOpen University: third level course; no.S323.
500			_aUnit 1-3: Primary production - the process : primary production in ecosystems : consumers in ecosystems.
500			_aUnits 4-5: Decomposer: whole ecosystems
500			_aUnits 6-9: Insect populations: populations of plants and vartebrates: general principle of population regulation.
500			_aUnits 10-11: Climatic factorsedaphio factors,problems of disposal.
500			_aUnits 12-14: Biotic factors,food chains and symbiosis competitive and other interaction organisms,diversity in communities,discussion of blocks A,B and C.
500			_aUnits 15-16 : Man and ecosystems: man and communities of organisms.
082			_aOU574.5 _bECO
999			_c43215 _d43215