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HABITATS AND NICHES

HABITATS AND NICHES. Aim: What are habitats and niChes ?. Habitat:. The area or natural environment in which an organism or population normally lives. humans. animals. living species. plants. A habitat is made of the following:. physical environment. biotic environment.

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HABITATS AND NICHES

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  1. HABITATS AND NICHES

  2. Aim: What are habitats and niChes?

  3. Habitat: The area or natural environment in which an organism or population normally lives. humans animals living species plants

  4. A habitat is made of the following: physical environment biotic environment

  5. A habitat’s physical environment includes the following: soil moisture range of temperature availability of light

  6. A habitat’s biotic environment includes: availability of food presence of predators

  7. food In a habitat, an organism must find… water shelter space

  8. Example of a habitat: FOREST

  9. Example of a habitat: UNDER THE SEA

  10. Example of a habitat: desert

  11. Ice land A habitat can be very large or very small. A polar bear’s habitat covers the annual sea ice (vast area of land) and they can be found 200 miles offshore. A barnacle’s habitat can be found on a simple rock, shell or whale.

  12. microhabitat The term microhabitat is often used to describe small-scale physical requirements of a particular organism or population.

  13. Example of microhabitat: Log rotting in a forest

  14. niche

  15. What is a niche? • A niche is an organism’s role (job) in the ecosystem. • It includes what the organism eats, where it lives, and what it does.

  16. Types of niches: Fundamental niche Realized niche

  17. FUNDAMENTAL NICHE can be defined as the range of environmental conditions in which each of the species survives.

  18. REALIZED NICHE can be termed as the range of environmental conditions in which a species is really found.

  19. Example of Fundamental and Realized Niche

  20. Example: naturally live in forests and eats insects, fruits, and other small creatures Fundamental niche raccoons

  21. Example: An encroachment by humans changes their habitat to an urban environment and they start to live off of our trash and other waste Realized niche raccoons

  22. Examples of a Niche….

  23. What is the niche of a beaver? • A beavers niche in the ecosystem includes: • cutting down trees • building a dam to flood an area and make a pond • building a lodge to live in • raising a family of beavers • chewing bark and wood

  24. Red-Tailed Hawk & Barred Owl • Birds of prey • Live in forests on the edge of fields • Eat mice and other rodents • Nest in trees Barred owl Red-tailed hawk

  25. No two species can occupy the exact same niche, because no two species do the exact same thing.

  26. If they do, or try to, there will be competition between the two organisms. One organism will have to change or become extinct.

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