* Energy Transfer: When one organism consumes another, it doesn't obtain 100% of the energy from the prey. A significant portion is lost as heat during metabolic processes.
* The 10% Rule: A general rule of thumb is that only about 10% of the energy from one trophic level is transferred to the next. This means that a herbivore (primary consumer) gets only about 10% of the energy stored in the plants it eats. A carnivore (secondary consumer) then gets only about 10% of the energy from the herbivore it consumes, and so on.
Example:
* Producers (plants): Let's say a plant has 100 units of energy.
* Primary Consumers (herbivores): The herbivore that eats the plant might get 10 units of energy.
* Secondary Consumers (carnivores): The carnivore that eats the herbivore might get 1 unit of energy.
Consequences:
* Limited Trophic Levels: The decreasing energy availability limits the number of trophic levels that can exist in a food chain.
* Biomass Decreases: Each trophic level has less biomass (total weight of living organisms) than the level below it. This is because less energy is available to support more organisms at higher levels.
Let me know if you'd like to delve into more details about energy flow in ecosystems!
