Biomass

biomass©GCT

Diagram to show how biomass increases down the trophic level © GCT

Biomass is the mass of all living organisms in an ecosystem. The biomass of individual species living in an ecosystem can also be measured. Biomass decreases higher up the trophic levels. The biomass for Galapagos giant tortoises will be lower than the biomass for the vegetation which they eat.

Glossary of Galapagos