Received 18 July 2005; revision accepted 12 March 2006.
Phosphorus Limits Tropical Rain Forest Litter Fauna
Version of Record online: 21 DEC 2006
Volume 39, Issue 1, pages 50–53, January 2007
How to Cite
McGlynn, T. P., Salinas, D. J., Dunn, R. R., Wood, T. E., Lawrence, D. and Clark, D. A. (2007), Phosphorus Limits Tropical Rain Forest Litter Fauna. Biotropica, 39: 50–53. doi: 10.1111/j.1744-7429.2006.00241.x
- Issue online: 21 DEC 2006
- Version of Record online: 21 DEC 2006
- Costa Rica;
- nutrient limitation;
- terrestrial food web;
- trophic cascade;
- tropical forest
The stoichiometry of resources may explain bottom-up regulation of higher trophic levels. We tested the effects of soil and litter nutrient stoichiometry on the invertebrate litter fauna of a Costa Rican tropical rain forest. Animal densities were estimated from 15 sites across a phosphorus gradient. The density of the invertebrate litter fauna varied considerably, and was strongly tied to soil and litter phosphorus concentrations. An increase in phosphorus concentrations corresponded with an equally proportionate increase in animal densities. Natural variation in nutrient levels can thus serve as a predictor of density in a highly diverse tropical animal community.