Food Webs and Pyramids Nutrients Food Chains and
![Food Webs and Pyramids Food Webs and Pyramids](https://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-1.jpg)
Food Webs and Pyramids
![Nutrients Food Chains and energy flow through ecosystems in food chains and food Nutrients Food Chains and energy flow through ecosystems in food chains and food](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-2.jpg)
Nutrients Food Chains and energy flow through ecosystems in food chains and food webs.
![A food chain is the flow of energy from one organism to another. A food chain is the flow of energy from one organism to another.](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-3.jpg)
A food chain is the flow of energy from one organism to another. The arrows in a food chain represent the energy flow!
![](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-4.jpg)
![FOOD WEBS Interconnecting food chains Gives us a better picture of the ecosystem FOOD WEBS Interconnecting food chains Gives us a better picture of the ecosystem](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-5.jpg)
FOOD WEBS Interconnecting food chains Gives us a better picture of the ecosystem
![](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-6.jpg)
![](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-7.jpg)
![Trophic Levels Contains all organisms in a feeding level that are the same number Trophic Levels Contains all organisms in a feeding level that are the same number](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-8.jpg)
Trophic Levels Contains all organisms in a feeding level that are the same number of steps away from the sun. Moving up each trophic level, there is a 90% loss of heat.
![](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-9.jpg)
![That means that only 10% of energy is passed along from one level That means that only 10% of energy is passed along from one level](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-10.jpg)
That means that only 10% of energy is passed along from one level to another.
![Because of the huge loss of energy, there is usually no more that Because of the huge loss of energy, there is usually no more that](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-11.jpg)
Because of the huge loss of energy, there is usually no more that 4 or 5 trophic levels.
![Ecological Pyrmaids Graphic way to represent the relationship energy values in each tropic level. Ecological Pyrmaids Graphic way to represent the relationship energy values in each tropic level.](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-12.jpg)
Ecological Pyrmaids Graphic way to represent the relationship energy values in each tropic level.
![TYPES OF PYRAMIDS Pyramid of Energy Pyramid of Numbers Pyramid of Biomass TYPES OF PYRAMIDS Pyramid of Energy Pyramid of Numbers Pyramid of Biomass](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-13.jpg)
TYPES OF PYRAMIDS Pyramid of Energy Pyramid of Numbers Pyramid of Biomass
![The bases of these pyramids represent the producers. The bases of these pyramids represent the producers.](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-14.jpg)
The bases of these pyramids represent the producers.
![PYRAMID OF ENERGY Illustrates the energy content of biomass of each tropic level. Energy PYRAMID OF ENERGY Illustrates the energy content of biomass of each tropic level. Energy](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-15.jpg)
PYRAMID OF ENERGY Illustrates the energy content of biomass of each tropic level. Energy expressed in kilocalories/square meters.
![](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-16.jpg)
![PYRAMID OF BIOMASS Illustrates the total biomass at each trophic level. PYRAMID OF BIOMASS Illustrates the total biomass at each trophic level.](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-17.jpg)
PYRAMID OF BIOMASS Illustrates the total biomass at each trophic level.
![Biomass is a quantitative estimate of the total mass or amount of living Biomass is a quantitative estimate of the total mass or amount of living](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-18.jpg)
Biomass is a quantitative estimate of the total mass or amount of living material. Biomass units vary. It can be represented by total volume or live weight.
![](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-19.jpg)
![PYRAMID OF NUMBERS This pyramid is based on the number of organisms at each PYRAMID OF NUMBERS This pyramid is based on the number of organisms at each](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-20.jpg)
PYRAMID OF NUMBERS This pyramid is based on the number of organisms at each level.
![Not as useful as the other pyramids because it provides no information about Not as useful as the other pyramids because it provides no information about](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-21.jpg)
Not as useful as the other pyramids because it provides no information about energy levels or biomass.
![](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-22.jpg)
![INVERTED PYRAMID OF NUMBERS Blue birds INVERTED PYRAMID OF NUMBERS Blue birds](http://slidetodoc.com/presentation_image_h/11872f7ce3d4a53faeaf404c4a9ec379/image-23.jpg)
INVERTED PYRAMID OF NUMBERS Blue birds
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