Skip to Main Content
Monitoring with a modified Robel pole on meadows in the central Black Hills of South DakaotaAuthor(s): Daniel W. Uresk; Ted A. Benzon
Source: Western North American Naturalist. 67(1): 46-50.
Publication Series: Miscellaneous Publication
PDF: View PDF (585 B)
DescriptionThis study using a modified Robel pole was conducted in the central Black Hills, South Dakota. The objectives were to test the relationship between visual obstruction readings and standing herbage, develop guidelines for monitoring, and estimate sample size. The relationship between visual obstruction and standing herbage was linear with 2 segments in a piecewise model. Regression coefficients were highly significant (P [less than/equal to] 0.001). Standard error of the estimate for a single mean was 373 kg [dot] ha-1. Herbage ranged from 89 to 3821 kg [dot] ha-1 with a mean of 1416 kg [dot] ha-1. The average number of visually obstructed bands was 6.1 and ranged from 0.21 to 20.4. Cluster analyses grouped the visual obstruction readings into 3 management categories: short, medium, and tall. A minimum of 3 transects (20 stations per transect) is recommended for monitoring areas [less than/equal to] 259 ha (1 section) to be within 20% of the mean at 80% confidence. The protocol developed to monitor standing herbage is accurate, precise, and easy to apply. This tool provides pertinent information for managers to develop guidelines based on the bands and/or standing herbage for monitoring livestock and wildlife use.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationUresk, Daniel W.; Benzon, Ted A. 2007. Monitoring with a modified Robel pole on meadows in the central Black Hills of South Dakaota. Western North American Naturalist. 67(1): 46-50.
KeywordsRobel pole, vegetation, obstruction, height-density, strtrcture, prediction, livestock, wildlife
- Monitoring Idaho fescue grasslands in the Big Horn Mountains, Wyoming, with a modified robel pole
- Protocol for monitoring standing crop in grasslands using visual obstruction
- Effects of timber harvesting on coarse woody debris in red pine forets across the Great Lakes states, U.S.A.
XML: View XML