Abiotic or Biotic factors

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Abiotic and Biotic

Transcript of Abiotic or Biotic factors

Page 1: Abiotic or Biotic factors

Abiotic and Biotic

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Ecosystems

• Interacting populations of organisms with biotic and abiotic factors

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Abiotic Factors

• Non-living factors that affect the ecosystem: light, space, temperature, shelter, water, soil composition

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Biotic Factor

• Living factors that affect the ecosystem: food sources, other population members, other species

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Competition

• More than one individual, or population in an ecosystem, relies upon the same limited resources

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Niche

• Role in an ecosystem

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Limiting Factor

• A biotic or abiotic factor needed as a resource for survival; depletion prevents growth or expansion of the organism or population

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Summary

• Resources for an organism’s habitat, including space, food, shelter, and water, may be limited or depleted by competition. Two species cannot operate in the same niche in the same environment.

• Organisms rely on natural resources in their environment such as quantity of light, water supply, and suitable temperature.

• Competition occurs when niches overlap and organisms seek the same resources, especially when the population density is high.