Ecology Vocabulary

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Ecology

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The study of relationships among organisms to one another and to their physical surroundings.

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Ecosystem

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All the living (biotic) and non-living (abiotic) factors in an area.

Ex. Grass, fish, algae, water, sunlight, soil

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Community

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All the living things in an ecosystem.

Ex. all deer, trees, birds and insects in webster.

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Population

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All the organisms of one species in a particular area. Ex. All the deer in Webster.

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Organism

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An individual animal, plant, or single-celled life form. Ex. One deer or one tree

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Biotic

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Living or once living. Ex. Food, predator, bacteria (good or bad)

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Abiotic

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Non-living characteristics of the ecosystem. Ex. Sunlight, water, oxygen, carbon dioxide, temperature, soil, etc.

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Food Chain

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A simple series of organisms each dependent on the next as a source of food.

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Food Web

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A system of interdependent food chains; shows multiple trophic levels and feeding relationships.

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Biomass Pyramid

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A graphical representation to show the relative amounts of living matter at each trophic level.