BIOLOGY & AGRICULTURE CALCULATOR
Biomass Pyramid Calculator
Calculate the biomass at each trophic level using trophic efficiency.
What is the Biomass Pyramid Calculator & How does it work?
A biomass pyramid represents the total amount of living organic matter at each trophic level in an ecosystem. The pyramid is typically upright, with producers (plants) forming the base and top predators occupying the apex. Trophic efficiency refers to the percentage of energy transferred from one trophic level to the next.
The biomass at each trophic level can be calculated using the formula:
B_{n} = B_{n-1} times TE
Bn = Biomass at trophic level n
Bn-1 = Biomass at previous trophic level (n-1)
TE = Trophic Efficiency (as a decimal)
Bn-1 = Biomass at previous trophic level (n-1)
TE = Trophic Efficiency (as a decimal)
Trophic efficiency is usually around 10%, meaning that only about 10% of the energy from one trophic level is transferred to the next. This explains why food chains are typically limited in length.
Parameters
Consumer Biomass (kg/m²)—
Frequently Asked Questions
What is a biomass pyramid?
A biomass pyramid shows the amount of living organic matter at each trophic level in an ecosystem, starting with producers and ending with top predators.
How do you calculate biomass at each trophic level?
Use the formula B_n = B_{n-1} imes TE, where B_n is the biomass at trophic level n, B_{n-1} is the biomass at the previous level, and TE is the trophic efficiency.
What does trophic efficiency represent?
Trophic efficiency is the percentage of energy transferred from one trophic level to the next in an ecosystem.
Why is a biomass pyramid typically upright?
A biomass pyramid is usually upright because producers (plants) at the base have more biomass than consumers at higher levels due to energy loss between trophic levels.
Can the Biomass Pyramid Calculator be used for any ecosystem?
Yes, the calculator can be used for various ecosystems, including forests, grasslands, and marine environments, as long as you have the necessary biomass data and trophic efficiency values.
Results are for informational purposes only and do not constitute professional advice.