English: Three different kinds of trophic pyramids are illustrated, including a pyramid of numbers (top), pyramid of biomass (middle), and pyramid of energy). The illustration is not drawn to scale and is redrawn from figure 3-12 in (2005) Fundamentals of ecology, Brooks Cole, pp. 598 ISBN: 9780534420666. , which is based on published experimental data. Notation: P=Producer, C1=primary consumer, C2=secondary consumer, C3=tertiary consumer, S=saprotroph
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