Trophic levels are levels in a food chain. Every food chain must begin with a producer (also called an autotroph), which is a plant that can produce its own food by photosynthesis. When a plant is eaten by a vegetarian animal (like an insect) which is eaten by a carnivore (a bird, for example) which is eaten by another carnivore (a snake, for example), each step in the process is another trophic level. The energy ultimately comes from the sun and from the producers (plants) at the bottom of the food chain.
Tropical storms get their energy from the moisture that evaporates from warm ocean water.
Energy levels or Energy
Producer-----> Primary Consumer-----> Secondary Consumer-----> Top Predator-----> all return to decomposers.
10 PERCENT
energy pyramid
biological magnification -teddybearr
In higher tropic levels, energy is lost because of the higher area of living. Metabolic activity is something else that plays a big part in the loss of energy at the tropic level.
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Each tropic level is only able to use about 10% of the energy from its food. Because of this energy loss, there is usually not enough energy left to after a fourth tropic level to support anything higher.
The most accurate method is to use a pyramid of energy to show the transfer of energy between trophic levels
Food energy flows from one organism to the next and to the next and so on, with some energy being lost at each level. Organisms in a food chain are grouped into tropic levels, based on how many links they are removed from the primary producers. In tropic levels there may be one species or a group of species with the same predators and prey.
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With the increase of the tropic level, there is a loss of energy. It is averaged that each organism consumes 10% of the energy from the organism that it eats. Because of this loss of energy, the animals at the higher tropic levels eat more, and hence, eat more toxins. The toxins accumulate in the fat of the animals, and just continue to increase.
Only 10% of the energy will appear in the next tropic level.
Four tropic levels are very rare and are found only in tropical rainforests. Consider the first level which are grasses and green plants. They absorb sunlight. If they have 100% of the energy at these levels, the next level will only get 10% of that 100% as energy for their metabolic needs. This 10% will be the base for the next level. They will only get 10% of 10% for their energy needs. That is 1%. To have enough energy for the forth level, only 10% of 1% will be passed on. That is 0.001%. Not very many animals can live on that.
An organism in the fourth level gets food from the sun by consuming organisms in the levels below it.
When organisms use cellular respiration to process energy, only a small amount of energy is transferred to the next trophic level.
1.Individual2.Population3.Communities4.Ecosystem5.Biome