Long-term prairie falcon population changes in relation to prey abundance, weather, land uses, and habitat conditions
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Authors: K. Steenhof, M. N. Kochert, L. B. Carpenter, and R. N. Lehman
Date: 1999
Journal: The Condor
Volume: 101
Number:
Pages: 28-41
Summary of Methods: Prairie falcon (Falco mexicanus) populations, in the study area, greatly declined from 1976 to 1997. Droughts, declines in Townsend's ground squirrel (Spermophilus townsendii) populations, fires, and agriculture all contributed to the decline in prairie falcons. Idaho Army National Guard artillery firing and tank maneuvers near the Orchard Training Area were also a major factor. Poor prairie falcon foraging opportunities were likely created by a combination of military training, fire, and livestock grazing.
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: falco mexicanus, townsend's ground squirrel, spermophilus townsendii, livestock grazing, military training, agriculture
Annotation: The authors used unpublished data from S.T. Knick and S.E. Watts as grazing intensity guidelines for this study.
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