Local gradients of cowbird abundance and parasitism relative to livestock grazing in a western landscape
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Authors: C. B. Goguen, and N. E. Mathews
Date: 2000
Journal: Conservation Biology
Volume: 14
Number: 6
Pages: 1862-1869
Summary of Methods: Gougen and Mathews looked at the effects of cowbird parasitism on plumbeous vireos as it compared to distance from forest edge and active livestock grazing sites. Cowbird abundance was negatively related to distance from livestock grazing, while host abundance showed no sign of relation with grazing or forest edge. Overall, parasitism was positively correlated with cowbird abundance. Gougen and Mathews were not sure how to explain the high nest success of vireos in that habitat and urged for more research to understand the outcome of their project.
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: plumbeous vireo, forest edge, nest success
Annotation: Cattle remove 45% annually on the V7R ranch.
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