Forest canopy arthropods as sodium, potassium, magnesium and calcium pools in forests. Schowalter, T. Forest Ecology and Management, 1983.
Forest canopy arthropods as sodium, potassium, magnesium and calcium pools in forests. [pdf]Paper  abstract   bibtex   
We measured concentrations of sodium, potassium, magnesium, and calcium in forest canopy arthropod functional groups collected from vegetation of clearcut and uncut hardwood forests during 1977 and 1978. Functional groups differed significantly in concentrations of the four elements. Spiders had the significantly highest sodium concentrations, followed in decreasing order by some other predators and then herbivores. Caterpillars and sawfly larvae had the significantly highest potassium and magnesium concentrations and high calcium concentrations. Our data indicate that nutrients contained in nominal biomass of canopy arthropods do not contribute significantly to litter nutrient pools.

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