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Introduction to Ecology: Understanding Interactions in Ecosystems

Learn the basics of ecology, including the components of an ecosystem, levels of organization, and the concepts of niche and habitat. Explore how living and non-living factors interact within the environment.

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Introduction to Ecology: Understanding Interactions in Ecosystems

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  1. Ecology

  2. Ecology OUR Objectives: • Identify the basis of Ecology • Describe the components of an ecosystem • Review biotic and abiotic components • Explain levels of organization • Decipher niche and habitat

  3. WHAT IS ECOLOGY? Ecology-the scientific study of interactions between organisms and their environments, focusing on energy transfer Ecology is a science of relationships

  4. WHAT DO YOU MEAN BY ENVIRONMENT? The environment is made up of two factors: • Biotic factors- all living organisms inhabiting the Earth – if it IS or WAS alive. • Abiotic factors- nonliving and NEVER living parts of the environment (i.e. temperature, soil, light, moisture, air currents)

  5. Biotic VS Abiotic • Video 2 • Video

  6. Biotic VS Abiotic • Biotic = Living or once living components of an ecosystem • Abiotic = Never living components of an ecosystem • VERBAL QUIZ • Interaction between biotic and abiotic 1

  7. Levels of Organization Biosphere Biome Ecosystem Community Population Organism

  8. BIOSPHERE BIOME ECOSYSTEM COMMUNITY POPULATION ORGANISM

  9. Biosphere – all living things and their relationship with life supporting portions of Earth composed of air, land, fresh water, and salt water. • The highest level of organization

  10. BIOME – location with a specific climate (temperature and precipitation) • WE LIVE IN THE TEMPERATE DECIDUOUS FOREST.

  11. Ecosystem - populations in a community biotic and the abiotic factors in a specific area

  12. Community -several interacting populations that inhabit a common environment and are interdependent.

  13. POPULATION • a group of organisms of one species living in the same place at the same time that interbreed • Produce fertile offspring • Compete with each other for resources (food, mates, shelter, etc.)

  14. Organism - any unicellular or multicellular form exhibiting all of the characteristics of life, an individual. • The lowest level of organization

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  22. TICKET OUT THE DOOR • DO Ticket OUT – turn in when completed

  23. Name: __________QUIZ

  24. Review

  25. Watch Reggiand answer Q • Write down when Reginold tells you about his life

  26. Niche -the role a species plays in a community; its total way of life; it’s JOB as that creature. Habitat- the place in which an organism lives out its life Habitat vs. Niche

  27. A niche is determined by the tolerance limitations of an organism, or a limiting factor. Limiting factor- any biotic or abiotic factor that restricts the existence of organisms in a specific environment. Habitat vs. Niche

  28. Habitat vs. Niche • Examples of limiting factors - • Amount of water • Amount of food • Temperature • Amount of space • Availability of mates

  29. Habitat

  30. ECOSYSTEM

  31. Competitive Exclusion Principle • A habitat can have different species but each species must have a different niche. • No two species can occupy the same niche for a long period of time. • What happens if they do? Watch • Video1

  32. Review OUR Objectives: • Identify the basis of Ecology • Describe the components of an ecosystem • Review biotic and abiotic components • Explain levels of organization • Decipher niche and habitat

  33. TICKET OUT THE DOOR

  34. REVIEW • Compare and contrast biotic and abiotic. • Population is …. • An Organism is…. • Describe how a community different from an ecosystem? • Explain how a niche and habitat different?

  35. REVIEW • Biotic = living or once living, abiotic= never alive. They are both important components of healthy ecosystems. • Population is a group of organisms of one species living in the same place at the same time • An Organism is any unicellular or multicellular form exhibiting all of the characteristics of life, an individual. • Community Multiple populations interacting in one area. Ecosystem All populations in one area interacting with each other and their non-living environment. • Niche - the role a species plays in a community; its total way of life; it’s JOB as that creature. Habitat- the place in which an organism lives out its life

  36. Homework Homework: • Vocabulary on page 4 of packet • Q's on page 6– • Read and do q's on pages 9-10 –

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