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Yosemite's Ecosystem

A school project for ms. jones class

Brayden Bowers

on 10 May 2013

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Transcript of Yosemite's Ecosystem

Northern California
Yosemite National
Forest Organism Population Ecosystem Purpose in Ecosystem Deer play an important role in an ecosystem
They are herbivores (which mean they eat only
plants)and due to this fact they regulate the biomass
of plants. Biotic Organism as well as a keystone species. The presence of a predator like a bear in an ecosystem
is very important due to the fact that they keep deer populations in check, regulating the impact deer have
on the vegetation in this ecosystem. This is a biotic organism. Squirrels are very important in an ecosystem like
Yosemite's because they have an important role in forest
renewal and vegetation. Example: when a nut/seed falls
to the ground the squirrel hoards the item by burying it 2-4 inches deep. Now if the squirrel then forgets about this seed then this seed can grow into a plant. This is a biotic organism. Mushrooms play a critical role in the ecosystem of a forest.
Mushrooms play a key role in recycling dead plants and making their nutrients available for future generations of vegetation. This is a biotic organism and is a keystone for its ecosystem. The peregrine falcon like the bear is also a predator and
assists in regulating prey and by doing so help the plant and vegetation. This is a biotic organism. Community All the vegetation in this picture
is under the category of a producer.
A producer is an organism that
makes its own food. A deer is under the category of a
primary consumer. A primary
consumer is a consumer that
consumes mostly plants and
other organic materials and are main
prey to many predators. Although the falcon doesn't
consume deer it is still under
the title of a secondary
consumer, due to the fact that
it consumes other herbivores
such as squirrels, rabbits etc. The bear is a tertiary consumer
which means that the bear is at
the top of the food chain it can
eat practically everything and
anything in its ecosystem. A squirrel is also a primary
consumer they eat nuts berries
and grass but are main prey to
many predators. The Food Web The thing that is neat about the food web is that everything goes in a circle type a cycle. This is a decomposer once an organism dies these organisms break down the animals body and puts the minerals back into the ground to help plant growth. Evaporation Condensation Precipitation Run Off The Water Cycle In evaporation water goes to the sky this usually happens when the temperature gets high. In condensation water turns into clouds which are just build ups of moisture. Precipitation In precipitation water falls
to the ground this usually
happens when the temperature
goes down. Precipitation is important
in giving water to organisms. After a strong rain water will runoff into lakes/bodies of water then the cycle starts over again. Oxygen Cycle CO2 + H2O enters the
plant and undergoes
photosynthesthis. This proccess
creates oxygen and sugar. d Cellular Respiration occurs and Co2 exits the organism as does water ,
this is then given to the plants to continue the process. Oxygen and sugar is then made and is now available for other organism. The organism then uses this oxygen and sugar to be able to do cellular respiration.
This process is then cycled over and over again. Thank you for listening to the words I say. I enjoyed our little talk. Transpiration The transportation of gases through plants. Groundwater some runoff goes to ground water Seepage Other runoff seeps through the ground Water storage in lake. Lakes catch part of rainfall and collect runoff. an organism is the most basic unit of an ecosystem a group of organisms a group of different biotic organisms that work together all things biotic and abiotic
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