content Types of Ecological Investigations. An introduction to Ecology. Concepts of Ecosystem. Components and Processes of an ecosystem. Components of the Biosphere. Environmental factors affecting organisms. Habitat. Ecological niche. Tolerance range. Productivity. Food and Feeding relationship( Food Chain). Food…
Read moreEnergy flow in ecological system Ecosystems are open systems, receiving energy and nutrients from outside their boundary. Energy in Ecosystem The main source of energy is the sun(solar energy). The energy of the sun comes as thermal energy (heat) and radiant energy (light). Solar radiations with short-wavelength for…
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Productivity of Ecosystem It is usually expressed in units of mass per unit surface per unit time Productivity of an ecosystem is the rate of generation of organic matter in an ecosystem. Productivity is a measurable parameter of an ecosystem. Also, important characteristics of an ecosystem. Most productive ecosyste…
Read moreThe organisms living as a group in an ecosystem as referred to as "population" . population - A group of individuals of a single species inhabiting a specific area in a definite time period. Population size Population depends on population size. Population size is generally expressed as the number of indivi…
Read moreEcological Pyramid The trophic level of an ecosystem can be expressed as diagrammatically as an ecological pyramid. This ecological pyramid consists of three parts, Base Body Apex Producers form the base . The body consists of successive trophic levels. Carnivores form the apex . An ecological pyramid These ecologic…
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Trophic level The food web indicates a complex network so it's difficult to study the feeding relationship. This problem is simplified by grouping the organisms into different feeding levels based on their energy source. These feeding levels are called trophic levels of an ecosystem. All organisms or species that…
Read moreFood Web Food Chains interconnected with one another to form a food web. To divers food preferences and the sharing food by some animals in an ecosystem. One species of some animal is consumed by several predators. The predators become members of the different food chains and occupy different positions in different …
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