Rangeland Ecology & Management

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The effect of grazing on the spatial heterogeneity of vegetation
Author
Adler, P. B., D. A. Raff, W. K. Laurenroth
Publication Year
1969
Body

Depending on the scale of observation and on the factors that determine animal distribution, grazing patterns may be stronger or weaker than vegetation patterns, or may mirror the spatial structure of vegetation. Case studies from the literature support the author's predictions, although ecosystems characterized by strong plant-soil interactions present important exceptions. Although, it is known that grazing processes can cause plant heterogeneity to increase, it is unclear exactly how grazing decreases heterogeneity. The authors suggest that neighborhood interactions, at the individual plant scale, rather than large disturbance events or underlying environmental conditions, may be the reason for the decrease in heterogeneity in some areas.

Language
en
Keywords
herbivory
competition
disturbance
spatial dependence
spatial heterogeneity
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