list any three principles on which
Code
of Ecology must be
based
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Some important fundamental concepts and principles of ecology in terms of eco-system may be outlined as follows:
1. Eco-system is a fundamental well structured and organised unit that brings physical environment and living organisms together in a single framework which facilitates the study of interactions between biotic and abiotic components. Ecosystems are also functional units where in two biotic components, namely autotrophic and heterotrophic components are of major significance.
2. The biotic and abiotic components of biosphere ecosystem are intimately related through a series of large scale cyclic mechanisms which help in the transfer of energy, water, chemicals and sediments in various components of the biosphere.
3. Sustained life on the earth is a characteristic of eco-system, not of individual organisms or population (D.B. Botkin and E. A. Keller 1982).
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1. Eco-system is a fundamental well structured and organised unit that brings physical environment and living organisms together in a single framework which facilitates the study of interactions between biotic and abiotic components. Ecosystems are also functional units where in two biotic components, namely autotrophic and heterotrophic components are of major significance.
2. The biotic and abiotic components of biosphere ecosystem are intimately related through a series of large scale cyclic mechanisms which help in the transfer of energy, water, chemicals and sediments in various components of the biosphere.
3. Sustained life on the earth is a characteristic of eco-system, not of individual organisms or population (D.B. Botkin and E. A. Keller 1982).
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