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| What's the Difference Between Cave and Surface Food Webs? |  Click on the Picture for Larger Image |
| On the surface: |
| 1) A coyote would eat a mouse
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| 2) This mouse eats seeds from green plants.
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| 3) These plants need sunlight to create these seeds.
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| In this example the plants are the primary producers within the food web; the mouse and coyote are the consumers . |
| In caves: |
1) Fish or midges eat sulfur bacteria growing on rocks in the stream;
 Click on the Picture for Larger Image  |
| 2) Diving beetles eat the fish.
Click on the Picture for Larger Image |
| 3) Spiders and other predators eat the midges.
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| In this example bacteria (that “eat” hydrogen sulfide) are the primary producers within the food web; the midges, spiders and other predators are consumers. |
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