A model of herbivore feedback in plant productivity
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Authors: M. I. Dyer, D. L. DeAngelis, and W. M. Post
Date: 1986
Journal: Mathematical Biosciences
Volume: 79
Number: 2
Pages: 171-184
Summary of Methods: Based on data that suggests light grazing enhances forage production, while heavy grazing decreases forage production, Dyer et al created a model to determine what grazing level would optimize plant production. Equations to estimate nutrient cycling, net growth, and seed production were combined to make the model. The model produced a curve similar to the herbivore optimization curve that was previously hypothesized. The model has several assumptions that need to be met for the resulting grazing optimization to occur, however, the authors believe that the model may be used as a general guide to understanding nutrient flow and plant production in grazed systems.
Article Summary / Main Points: None
Vegetation Types:
MLRA Ecoregions:
Agrovoc Control Words: Riparian zones Rangelands Wildlife
Article Review Type: Refereed
Article Type: Experimental Research
Keywords: modeling, herbivore optimization curve, nutrient cycling, biomass production, seed production, nutrient growth limitations
Annotation: This review examines studies done in North America and all over the world. This summary only addresses information from North America. Season of use is not specified.
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