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Ecosystems

Ecosystems. Ecosystems. Ecosystem - all the biotic and abiotic factors and how they interact

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Ecosystems

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  1. Ecosystems

  2. Ecosystems • Ecosystem- all the biotic and abiotic factors and how they interact • Includes all of the living things (plants, animals and other) in a given area, interacting with each other, and also with their non-living environments (weather, earth, sun, soil, climate, atmosphere) • Has 2 Main Parts of an Ecosystem: • 1.Biotic(all the living and once-living parts of the ecosystem) • 2. Abiotic (all the nonliving factors in the ecosystem)

  3. Two Main Parts of the Ecosystems Biotic-anything alive (has life) Examples of Biotic: Trees Deer Chipmunk Moss (on rocks) Coyote Hawk Ferns (is a plant) Abiotic-anything NOT alive (has no life) Examples of Abiotic: Rock Soil Water Air Temperature Sunlight Rain

  4. Changes in the Ecosystem NATURAL: • Plant growing • Overpopulation • Wind storm • Extinction or endangered • Weathering and erosion • Volcanoes • Earthquakes • Fire • Tsunamis • Tornadoes • Hurricanes HUMAN: • Building • Population increase • Cutting down trees • More pollution • Global warming

  5. Mount St. Helens Mt. St. Helens Before the Eruption: • Is a volcano located in the Cascade Mountains in Washington State • Stratovolcanoes • In the last 500 years, Mt. St. Helen’s had at least four major eruptions and many minor eruptions • 1st Major eruption happened on May 18, 1980 where it registered a 5.1 Richter Scale • Hot ashes cause forest fire • 57 people died • All life was extinguished • Barren wasteland • Forests are flattened • Left a crater in volcano After the Eruption (1980):

  6. Study the notes I gave you separately about the video on Mt. St. Helens 1st eruption- May 18, 1980 October 2004 (another eruption) Study handout on animals/plants/ trees that survived Mt. St. Helens –what were the cause/effect of it Think about the differences from the first eruption and October 2004 eruption Mount St. Helen’s Why did the Mt. St. Helens erupted (blow): 1980- lots of gases from magma to explode 2004- no more gases from magma to rise up

  7. Pill Bugs Behavior-Surviving and Thriving • Characteristics of a Pill Bug: • Has 2 antenna • Exoskeleton • Roll up into a ball • Dark brown to black • About ¾” or 5-15 mm • Can be found in tropical, temperate, and terrestrial • Live up to 2-3 years • Live in wet environment • Study the Pill Bug Behavior Packet and Questions

  8. Adaptation An adaptation is when an organism adjusts to a new environment Ex: weather, surroundings -if they don’t adapt, they will probably die Example: In the Mt. St. Helen’s video, after the 1st major eruption, Fisherman brought trout fishes to help them to adapt to their new environment and they survived. Also other animals were brought to Mt. St. Helen’s, and they all adapted to their new surroundings. Life was returning to the Volcano in 2004.

  9. Three Ecosystems of Ohio Ohio’s Wetlands Ohio’s Forests Ohio’s Prairies

  10. 1. Ohio’s Wetlands • Wetlands- an area of swampy or marshy land, especially considered as part of an ecological system • Variety of wetlands in Ohio: • Wet prairies 2. fens • 3. Bogs 4. marshes • Swamps 6. wet woods • 7. Sedge meadows • 2 Influences that species adapt to when living in the wetlands: • Presence of water • Fluctuating water levels (year to year)

  11. Cause and Effect of Wetlands:

  12. 2. Ohio’s Forests • Forests- is a dense growth of trees, plants, and bushes that covers a large area of land • Covers 30% of Ohio’s landscape • 6 Types of Trees found in Ohio’s Forests: • Maple 2.Oak • Beech 4. Hickory • Hemlock 6. Evergreen • 3 conditions that makes it perfect for growing trees in Ohio: • 1. Fertile Soil • 2. Plenty of Rain • 3. Moderate Climate

  13. Cause and Effect of Forests:

  14. 3. Ohio’s Prairie • Prairie- a plain of grassy land without many trees that consists of perennial grasses mixed with a deep root system • One of Ohio’s rarest ecosystems • 2/3 of Prairies plants are underground because it can survive conditions of heat, drought, and fires • 2 Types of Prairies: • 1. Wet Meadows- consists of wetland and prairie • 2. Dry Prairies- grow on thin, rocky soil of hillsides

  15. Cause and Effect of Prairies:

  16. Climate ChangeTemperatures are rising, the climate is changing Why is this happening? Some say that the burning of more fossil fuels such as gas, oil and coal being added to the atmosphere is causing the temperatures to rise. Too much carbon dioxide, and other greenhouse gases are getting trapped in the atmosphere.

  17. What can you do????? • Ride a bike Don’t cut them down either • Carpool What else? • Take bags to the grocery • Recycle everything! • Reuse • Reduce what you buy and use • Walk instead of drive • Plant trees

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