A model of herbivore feedback on plant productivity

M. I. Dyer; D. L. DeAngelis; W. M. Post

doi:10.1016/0025-5564(86)90146-X

A model of herbivore feedback on plant productivity

M. I. Dyer, D. L. DeAngelis, W. M. Post

Biology

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

Many laboratory and field studies suggest that heavy grazing decreases plant productivity, whereas light grazing may promote increases in comparison with ungrazed controls. A theoretical and computer-simulation model shows how biomass and nutrient interactions can give rise to these grazing responses. The recycling rates of limiting nutrients can be regulated nonlinearly by the grazer. This provides a plausible mechanism for explaining changes in primary productivity that are consistent with empirical data.

Original language	English (US)
Pages (from-to)	171-184
Number of pages	14
Journal	Mathematical Biosciences
Volume	79
Issue number	2
DOIs	https://doi.org/10.1016/0025-5564(86)90146-X
State	Published - Jun 1986

ASJC Scopus subject areas

Statistics and Probability
Modeling and Simulation
Biochemistry, Genetics and Molecular Biology(all)
Immunology and Microbiology(all)
Agricultural and Biological Sciences(all)
Applied Mathematics

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title = "A model of herbivore feedback on plant productivity",

abstract = "Many laboratory and field studies suggest that heavy grazing decreases plant productivity, whereas light grazing may promote increases in comparison with ungrazed controls. A theoretical and computer-simulation model shows how biomass and nutrient interactions can give rise to these grazing responses. The recycling rates of limiting nutrients can be regulated nonlinearly by the grazer. This provides a plausible mechanism for explaining changes in primary productivity that are consistent with empirical data.",

author = "Dyer, {M. I.} and DeAngelis, {D. L.} and Post, {W. M.}",

note = "Funding Information: *Research sponsored by the National Science Foundation Ecosystem Studies Program under Interagency Agreement BSR 80-21024 with the U.S. Department of Energy. under contract DE-AC05840R21400 with Martin Marietta Energy Systems, Inc. Publication No. 2700. Environmental Sciences Division, ORNL. We thank R. V. O{\textquoteright}Neill. H. H. Shugart, and two anonymous reviewers for helpful suggestions. This paper is U.S. government work. cannot be copyrighted, and lies in the public domain.",

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