Effect of cattle grazing on the density and species of grasshoppers (Orthoptera: Acrididae) of the Central Plains Experimental Range, Colorado: A reassessment after two decades
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Authors: J. L. Welch, R. Redak, and B. C. Kondratieff
Date: 1991
Journal: Journal of the Kansas Entomological Society
Volume: 64
Number: 3
Pages: 337-343
Summary of Methods: Welch et al. compared their results of this study to a similar conducted in 1970. The current study found a greater density of grasshoppers (Orthoptera: Acrididae) in lightly grazed pastures compared to 1970, while the heavily grazed pastures showed no differences between the years. This study suggests that grasshopper population changes over time could be impacted by grazing regimes.
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: lightly grazed, heavily grazed, population changes, grazing regimes, shortgrass prairie
Annotation: Study consists of 24, 258-ha pastures in this. Each pasture is assigned a grazing level of ungrazed, light, moderate, or heavy summer cattle grazing. This regime resulted in 1,000, 500, 375, and 225 kg herbage (dry weight) per ha remaining at the end of each season, respectively.
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