Richard Heinberg Quotes:
Ocupation: Journalist
Life: b. 1950
When a caterpillar eats a leaf, then a thrush eats the caterpillar, or when a hawk eats the thrush only 5 to 20% of usable energy is transferred from one level to the next. ... Thus herbivores will account for a much smaller fraction of the biomass [than plants] and the carnivores for a still smaller fraction.
topic: Environmental, Levels, Hawks, Biomass, Carnivores, Thrush
