Ecology is the study of the interrelationships within ecosystems. The environment devoted crop plants is the agroecosystem, where both animals and plants in the area are directly or indirectly influenced by each other. Ecosystems are not closed systems because there is always an interflow of matter and energy between adjacent ecosystems. The principle of the ecosystem has also brought forth very clearly that the ‘whole’ is more than the ‘sum of its parts’. The interdependence of the organism and the environment must provide the minimum requirements and nothing that is lethal. Well-researched and informative readings are compiled in this book. General introduction; community ecology; community structure; niche concept; community development; ecosystem ecology; man and environment etc. are the major themes elaborately explained.
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