Sites, mowing, 2,4-D, and seasons affect bitterbrush twig morphology
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Authors: V. M. Kituku, J. Powell, and R. A. Olson
Date: 1994
Journal: Journal of Range Management
Volume: 47
Number: 3
Pages: 200 - 205
Summary of Methods: Antelope bitterbrush (Purshia tridentata) plants,at three topographic areas (valley bottom, upper slope, mountain terrace), in south-central Wyoming were mowed in May to 2-3-cm stubble height or treated with 2,4-D to suppress surrounding herbaceous vegetation. The area is grazed by cattle in summer and occasionally by mule deer and elk in winter. Generally, mowing did not decrease twig length on the less productive sites and greatly increased it on more productive sites. Sites, shrub management practices, and season do affect bitterbrush twig morphology, but habitat managers can use twig morphology, but habitat managers can use twig length-diameter-weight relations in this vegetation type to estimate utilization if the sampling is stratified along environmental gradients.
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: antelope bitterbrush, purshia tridentata, range improvements, habitat improvement, shrub management, wyoming
Annotation: Treatments applied on each site included mowing, 2,4-D herbicide application, and untreated. Areas were mowed to a 2-3-cm stubble height. Each twig was cut 1-cm from the base to eliminate the swell and elliptical butt shape.
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