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Ecology Unit Topic 1: Relationships in Ecosystems

Ecology Unit Topic 1: Relationships in Ecosystems. The Study of Ecology. Ecology = the study of how organisms interact with the environment. Ecosystem = All the living organisms in an area and their non-living environment. Abiotic and Biotic Definitions.

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Ecology Unit Topic 1: Relationships in Ecosystems

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  1. Ecology UnitTopic 1: Relationships in Ecosystems

  2. The Study of Ecology Ecology = the study of how organisms interact with the environment Ecosystem = All the living organisms in an area and their non-living environment

  3. Abiotic and Biotic Definitions biotic factors= living or once-living biological components Ex: trees, people, animals, bacteria abiotic factors = non-living components of the environment Ex: rocks, water, minerals Ex: physical factors such as temperature, pH, weather

  4. Organization of the Living World Organism: • A living thing such as a plant, animal, bacteria Population: • Group of individuals of the same species in the same place and time. Community: • 2 or more populations in an area • Examples: • Penguins and walruses in Antarctica • Elephants and zebras in African savannah • Polar bears and seals in the Arctic

  5. Differences in Ecosystems • Ecosystems can vary in size and in their biotic and abiotic features. • Large Ecosystems: A coniferous forest or coral reef • Small Ecosystems: A beaver pond or rotting log • Brainstorm with a partner: • What biotic and abiotic features do you see in each ecosystem? Rotting Log Coniferous Forest

  6. Sustainable Ecosystems • Ecosystems that are capable of being maintained through natural processes are called sustainable • Other ecosystems are strongly influenced by human actions and require regular management • Brainstorm with a partner: • What are some examples of human-made ecosystems?

  7. Factors Affecting Ecosystems Examples of Natural Events Affecting Ecosystems: Examples of Human Events Affecting Ecosystems: Can you add to your list and think of some other examples?

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