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Unit 7 Vocabulary

This unit explores key ecological concepts including living (biotic) and non-living (abiotic) factors that shape environments. It defines habitats and ecosystems, discusses sustainability, and highlights the significance of biodiversity. The unit also covers various ecological processes, such as primary and secondary succession, the concept of climax communities, and the roles of pioneer species and microhabitats. Understanding these aspects is crucial for comprehending how ecosystems function and maintain diversity over time.

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Unit 7 Vocabulary

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  1. Unit 7 Vocabulary

  2. biotic • Organisms living or that had once lived in the environment (i.e., mouse, clover, dead tree)

  3. abiotic • Non-living factors in the environment (i.e., light, temperature, water, atmospheric gases, wind, soil, and nature of land surface)

  4. habitat • The place in which an animal lives

  5. ecosystem • A biological community of interacting organisms and their physical environment.

  6. sustainability • The capacity to endure. • In ecology, the word describes how biological systems remain diverse and productive over time.

  7. biodiversity • The variety of organisms in an ecosystem

  8. biome • Large geographic areas with similar climates and ecosystems (i.e., desert, tundra, etc.)

  9. population • Made up from all of the organisms in an ecosystem that belong to the same species

  10. ecosystem • A smaller part of the biosphere consisting of the organisms and non-living features that interact in an area

  11. primary succession • the development of biotic (living) communities in a previously uninhabited and barren habitat with little or no soil

  12. secondary succession • The development of communities in an area that has been disturbed but still retains its topsoil, as in a burned-over area

  13. climax community • An ecological community in which populations of plants or animals remain stable and exist in balance with each other and their environment. • A climax community is the final stage of succession

  14. species • All organisms of the same kind that adapted to a particular set of resources (called a niche) in the environment

  15. pioneer species • The first species/organisms to grow in an area after a disturbance.

  16. microhabitat • A small habitat that differs in character from some surrounding more extensive habitat.

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