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8th gr Ecology

TermDefinition
decomposer organism that breaks down dead or decaying organisms; fungi, bacteria, and some insects
biodiversity variety of life on Earth — the complexity and number of species in an environment
ecosystem All of the biotic and abiotic parts of an area.
competition the interaction between two organisms for the same resources within an environment
primary succession ecological succession that begins in lifeless areas where there is no soil
secondary succession occurs when a plant's life cycle is disrupted by an event that reduces the number of species in an established ecosystem
pioneer species he first to colonize newly created environments or recently disturbed environments
climax community the final stage of ecological succession with a stable, long lasting ecosystem of plants, animals, and fungi
invasive species an organism that is not indigenous, or native, to a particular area; causes harm to native species
ecological succession constant replacement of one community by another; primary and secondary succession
sustainability the ability of an ecosystem to maintain long-term stability
native species living organisms that naturally exists in a particular area
Created by: NEISDSci
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