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Web of Wildlife

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Page 1: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

Web of Wildlife

http://www.google.com/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&docid=K0jPQ7sbsfjv6M&tbnid=cuGGlKOmloXAVM:&ved=0CAUQjRw&url=http%3A%2F%2Fcoriaiken.com%2F2012%2F05%2F23%2Fanimals-and-kids%2F&ei=nn_eUpyrDZfNsQSD_oDADw&psig=AFQjCNGuNTil-K78HXIeR8z5fmaQgn0sqg&ust=1390399720454629
Page 2: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

• All living things need food to survive.

– Organisms obtain their food in different ways.

− Some animals eat plants, some eat other animals.

Food and Food Chains

• The feeding relationships between animals and plants in a habitat can be described with a food chain.

Page 3: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

PREDATOR PREY

• Can you think what these words mean?

Lion Thomson’s gazelle

Page 4: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

HERBIVORECARNIVORE

• Can you think what these words mean?

Cheetah Koala

Page 5: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

OMNIVORE

• What about this word?

Page 6: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

What is a food chain?

• Food chains show what eats what in a particular habitat.

• All food chains start with a PRODUCER.

Grass Rabbit Fox

Page 7: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

What is a food chain?

Grass

PRODUCER: An organism, usually a green plant, that uses photosynthesis to turn sunlight, water and carbon dioxide into sugars (energy). AUTOTROPH

Page 8: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

Rabbit FoxGrass

CONSUMER: an animal in a food chain that eats (consumes) a plant or another animal. HETEROTROPH

Page 9: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

• Can be fungi or

bacteria

•Eat dead organisms

•They prevent too

much decay and enrich the soil with nutrients, saprophyte

Decomposers

Page 10: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

• Break up bodies of dead organisms into smaller pieces

• Help decomposers manage dead organisms, faster decomposition

• Do not return nutrients to soil

Scavengers

Page 11: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

What is a food chain?

• The links between animals and plants in a habitat can be demonstrated by drawing a food chain.

• Food chains show how energy found in food moves through a community.

Grass Rabbit Fox

The arrow in a food chain means ‘is eaten by’ and ‘provides energy to’.

What do you think the arrow means between the pictures?

Page 12: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

Rabbit

Fox

Grass

PRIMARY CONSUMER

SECONDARY CONSUMER

TERTIARY CONSUMER

Coyote

Why do all organisms need energy?

Growth Repair damaged parts Replace cells at end of life cycle

Page 13: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

10 C = PRIMARY CONSUMER: An animal at the second level in a food chain which feeds on the producer. Primary consumers are usually herbivores, feeding on plants and fungi.

20 C = SECONDARY CONSUMER: An animal at the third level in a food chain. Secondary consumers can be carnivores or omnivores.

30 C = TERTIARY CONSUMER: An animal at the fourth level of a food chain. This is usually the top level, and tertiary consumers are usually carnivores and prey on other animals.

Page 14: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

A simple British woodlandfood chain

10 C

20 C

PRODUCER

CONSUMER

CONSUMER

HERBIVORE

CARNIVORE

PREY

PREDATOR

Food chains show how energy found in food moves through a community.

Page 15: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

A Food Web is a series of food chains that represent

energy flow through an ecosystem.

Grass

Rabbit

Fox

Grasshopper

Lizard

Sparrowhawk

Hawfinch

Page 16: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

A British woodland‘food web’

Grass

Rabbit

Fox

Grasshopper

Lizard

Sparrowhawk

Hawfinch

Page 17: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

Energy in an Ecosystem

http://videos.howstuffworks.com/discovery/27995-assignment-discovery-energy-flow-video.htm

Energy Pyramid - Energy Flow in Ecosystem -Video for Kids by makemegenius.com - YouTube

Food Chains - YouTube

http://videos.howstuffworks.com/discovery/27995-assignment-discovery-energy-flow-video.htm
http://www.youtube.com/watch?v=De_53QflEXQ
http://www.youtube.com/watch?v=TE6wqG4nb3M
Page 18: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

Changes to food chains

• INTERDEPENDENCE• Animals and plants depend on each other for survival.

• If something changes at one level in a food chain, it can affect all other levels in the food chain too.

Common toad eating young grass snake Grass snake eating common toad

Page 19: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

Grass

Grasshopper

Sparrowhawk

Hawfinch

If a pesticide killed all the grasshoppers….

…what would happen to everything else in

the food chain?

Page 20: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

Questions to think about…

• What happens if the producer in a food chain dies?

• What happens if one of the consumers in a food chain dies?– How does this affect the other species that prey on it?– How does this affect the other species that it preys on?

Page 21: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

Activity

• Split into groups • You will be assigned a habitat – Arctic tundra, the

Antarctic, British coastal waters, British woodland or African savanna.

• Using the worksheet, describe your habitat, what the weather is like and the animals and plants you think might be found there.

• You will then be given species information cards for your habitat, along with photographs of some of the species that are found there.

• Using the information on the cards and the arrows provided, make the food chain for your habitat.

• Rotate around the room - you will have the chance to build food chains for each different habitat.

Page 22: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

HERBIVORE: an animal which only eats plants.

Koala Rabbit

Page 23: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

CARNIVORE: an animal which eats meat (other animals).

Cheetah Fox

Page 24: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

OMNIVORE: an animal that feeds on both plants and other animals.

Page 25: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

Producer

Consumer

PRODUCERS Plants are called producers because they make (produce) their own food.

CONSUMERS Animals are called consumers because they eat (consume) other plants and animals.

http://cdn1.arkive.org/media/17/175920A8-ADFB-413A-B5EA-21B1D32B9997/Presentation.Large/Sycamore-leaves.jpg
http://cdn1.arkive.org/media/70/70A2D866-67AE-4CA7-B3AA-4C73EEBDD6A0/Presentation.Large/Barn-owl.jpg
http://cdn2.arkive.org/media/F1/F12C1E64-3B5B-48BE-8427-7A2045C2867B/Presentation.Large/Male-common-frog.jpg
http://cdn1.arkive.org/media/1C/1C291662-FA0F-4948-B4C4-FE5D0762DC74/Presentation.Large/Badger-in-forest.jpg
http://cdn2.arkive.org/media/D0/D0A743A6-0A1B-44A1-A492-1B6F976A4E36/Presentation.Large/Grass-snake-portrait.jpg
Page 26: Web of Wildlife. All living things need food to survive. –Organisms obtain their food in different ways. −Some animals eat plants, some eat other animals

• Can you think of any animals that eat plants?

• Can you think of any animals that eat other animals?

• How do plants get their food?


WHAT ANIMALS EAT?

My power point about what animals eat

What do animals eat

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