WHAT ARE ECOSYSTEMS?

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WHAT ARE ECOSYSTEMS?
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Where Things Live

• Living things need a place to live and grow.

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Fish live in water.
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Birds live in trees and fly through the air.
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Plants grow where there is soil, water and sun.
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Main Idea and Details
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ENVIRONMENT

• The living and nonliving things that surround a
  living thing make up its environment.

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What do living things get from their environments?

• Many living things share their environments and
  its resources.
• Food
• Water
• Oxygen
• Space

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Parts of an Ecosystem

• An ecosystem is made up of all the living and
  nonliving things in an environment.

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Different types of organisms live in an
ecosystem.
A group of organisms of the same kind living in
the same place is a population.
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All the population that live in an ecosystem at
the same time form a community.
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All members of a community live in the same
ecosystem but they do not all live in the same
part of the ecosystem.
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Where Plants and Animals Live

• Habitat is a place where plants and animals lives
  and it gets all that it needs to live.

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It is a place where they can meet their
needs.Animals get food, water, and shelter from
their habitat,
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Organisms and their Habitats

• Some organisms can survive only in certain
  habitats.
• For example, a polar could not find the water it
  needs in a desert.

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Classify Living and Nonliving things

• Living Things

• Non Living Things

Air Rocks Cave Soil water
Fish Water lily Plants Animals People
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Use the following tree map to write a lesson
summary.
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Lesson 2 What are some types of ecosystems?
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Types of Ecosystems

• Deserts are very dry ecosystems.
• Desert plants and animals can survive with very
  little water.

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Desert Plants

• Desert plants, such as cactus, have thick stems
  that store water.
• The roots of a cactus lie just below the soil and
  spread far from the plant.

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Grassland Ecosystems

• Grasslands are dry, often flat areas of land that
  are hot in the summer and cold in the winter.
• They get more rain and snow than deserts but less
  that most other ecosystems.

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Plants

• The main plant in a grassland ecosystem is grass.
  
• There are not many bushes in the grassland.
• Trees are found only by rivers and streams.

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Saltwater Ecosystems

• Saltwater ecosystems are oceans.
• Oceans cover about three fourths of Earths
  surface, so there are more saltwater ecosystems
  than any other.

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• Sharks, sea turtles, corals and octopus are all
  ocean animals.
• So are whales and seals.

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Freshwater Ecosystems

• Rivers, ponds, lakes and streams have fresh
  water.
• Lakes and rivers are closely tied. Some lakes are
  the source for some rivers. Important rivers,
  most often, originate from lakes. Some rivers end
  in lakes.
• Since both rivers and lakes are freshwater and
  flow in and out of each other, they share similar
  characteristics and many species reside in both
  habitats.

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Forest Ecosystems
Forest are ecosystems in which many trees grow.
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Tropical Rain Forest

• A tropical rain forest grows where it is hot and
  wet all year long.
• Animals such as jaguars and monkeys live there.

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Deciduous Forest

• What's A Temperate Deciduous Forest Like?
• One of the most interesting features of the
  temperate deciduous forest is its changing
  seasons.
• The word "deciduous" means exactly what the
  leaves on these trees do change color in autumn,
  fall off in the winter, and grow back again in
  the spring. This adaptation helps trees in the
  forest survive winter.

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Drawing Conclusions

• Suppose all the plants in one ecosystem died.
• What do you think would happen to that
  ecosystem?
• Why?

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Review

• Ecosystem What I look like

Hot and dry
Desert
Rains every day and has many trees and plants
Rain Forest
Deciduous Forest
Enough rain for trees to grow. They lose their
leaves in the fall.
Freshwater Ecosystems
Made up of rivers, ponds, lakes and streams and
my water does not have much salt
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Homework!

• Choose an organism.
• Make a drawing of it.
• Include the following details
• Name the type ecosystem in which it lives
• List the habitat(definition), population(drawing)
  and community(drawing) for the organism you
  chose.
• List if its a producer, consumer(which type if
  consumer) or decomposer.
• Create a 1 food chain that your organism would be
  in.

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Forest ecosystem
community
consumer carnivore
snake
population
Food chain
Habitat- definition