Energy flow diagram of a stream snail population



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Calculation of secondary production by sampling a cohort



Calculation of annual (or cohort) production for the dragonfly Epitheca spp (two indistinguishable
species combined) from a South Carolina pond


Weekly production of the three major dragonfly taxa throughout a year from a South Carolina pond



Quantitative food web for the major caddisfly taxa on submerged wood habitat in a river