Habitat Selection by Free-Ranging Bison in a Mixed Grazing System on Public Land

Dustin H. Ranglack, Johan T. Du Toit

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Domestic livestock have replaced bison (Bison bison) on almost all the remaining rangelands of North America. One of the few places where bison and cattle (Bos taurus) comingle on shared rangelands is in the Henry Mountains (HM) of southern Utah. Ranchers there are concerned, however, that bison are selecting the same grazing areas that are needed by cattle. We used global positioning system telemetry on bison across the entire HM rangeland to determine which habitats are most important for bison throughout the seasonal cycle. Sexual segregation was also measured (using the segregation coefficient, SC) to determine if bison bulls exert localized impacts by congregating in certain habitats separate from cow/calf groups. The HM bison exhibited low levels of sexual segregation for both the breeding (SC = 0.048) and nonbreeding seasons (SC = 0.112). We found bison habitat use to be diverse and dynamic, with bison grazing effects distributed widely across habitats throughout the seasonal cycle. Patches of grassland, whether naturally occurring or created through burning or mechanical treatments, were favored regardless of their distance to water. Our findings should assist ranchers and agency personnel in moving forward with the integrated management of free-ranging bison and cattle on the HM rangeland, with implications for bison conservation on public lands elsewhere in the United States.

Original languageEnglish (US)
Pages (from-to)349-353
Number of pages5
JournalRangeland Ecology and Management
Volume68
Issue number4
DOIs
StatePublished - Jul 1 2015

Fingerprint

mixed grazing
public lands
bison
habitat preferences
rangeland
habitat selection
grazing
cattle
mountain
habitat
rangelands
mountains
telemetry
habitat use
ranchers
livestock
GPS
grassland
habitats
breeding

Keywords

  • GPS telemetry
  • Resource Selection Function
  • habitat selection
  • human-wildlife conflict
  • sexual segregation

ASJC Scopus subject areas

  • Ecology
  • Animal Science and Zoology
  • Nature and Landscape Conservation
  • Management, Monitoring, Policy and Law

Cite this

Habitat Selection by Free-Ranging Bison in a Mixed Grazing System on Public Land. / Ranglack, Dustin H.; Du Toit, Johan T.

In: Rangeland Ecology and Management, Vol. 68, No. 4, 01.07.2015, p. 349-353.

Research output: Contribution to journalArticle

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