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Parts of an Ecosystem

Parts of an Ecosystem

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  • 1. Parts of Ecosystems Living Parts of Ecosystems
  • 2.
    • Ecosystem: groups of living things and the environment they live in
      • All living things can meet their basic needs in their ecosystems
    • some ecosystems only have a few living things
      • insects and small plants in a concrete parking lot environment
  • 3.
      • forests, ponds, and streams have many living things
        • these environments have more space, food and shelter so that many animals and plants can meet all their basic needs
  • 4. Populations
    • a group of the same species living in the same place at the same time
      • forest have many different tree populations
      • trout is one fish population in a stream
      • deer is one animal population in a meadow
  • 5.
    • populations live in the environment to which they are adapted
    • organisms that live in difficult environments must have unusual adaptations
      • estuary has salt and fresh water
      • Mangrove trees have roots and leaves that get rid of salt
  • 6.
    • ecosystems are named after the main population of plants that live there
      • estuaries that have mostly mangrove trees are called mangrove swamps
        • swamp: an area that is sometimes or always covered in shallow water
  • 7. Communities
    • plants of the main population are where other organisms interact
      • Mangrove branches hang over the water and attract insects looking for food/shelter
      • schools (groups) of archerfish live among the roots
        • they shoot water above the water trying to knock insects off the branches - then eats them
      • flock of lesser blue herons feed on fish, frogs, and other animals in or near the shallow water at the roots of the tree
  • 8.
      • the plants need animals to carry away seeds and to add nutrients to the soil
      • mangrove roots provide shelter for fish to swim and reproduce
  • 9. Nonliving Parts of an Ecosystem
    • nonliving parts of an ecosystem: sunlight, soil, water, air, and temperature
      • nonliving parts interact
        • Ex. water moving soil from place to place
      • nonliving and living parts interact
        • salt water (nonliving) and mangrove trees (living) - mangrove trees must filter out the salt in the water and other plants cannot do that
  • 10. Summary
    • ecosystem made up of groups of living things and their environment
    • Ecosystem includes plants and animals, living and nonliving parts
      • nonliving: sunlight, soil, air, water, and temperature
    • organisms of the same species form populations
    • communities are formed from different populations
  • 11.
    • community: made up of all populations that live in the same area
      • plants and animals live together and depend on one another to survive