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Consumer Control of Grassland Plant Production


Daniel R Guido, and Michelle M Kuns, Consumer Control of Grassland Plant Production: .


The effect of herbivory on grassland whole-plant production is poorly understood. Herbivores can increase grassland aboveground productivity, and laboratory experiments suggest that herbivory should reduce grass root growth. However, few field studies have directly measured the response of grassland root production to herbivores. We examined the effect of native migratory ungulates on grassland primary production by comparing aboveground (NAP) and belowground (NBP) production in grazed vs. ungrazed (fenced) grassland at nine variable sites in Yellowstone National Park. NBP was determined with minirhizotrons to account for root turnover. Grazers stimulated aboveground, below-ground, and whole-grassland productivity by 21%, 35%, and [...]


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  • Upper Colorado River Basin



From Source - Mendeley RIS export <br> On - Tue Feb 15 13:10:52 CST 2011

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Title Citation Consumer Control of Grassland Plant Production

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