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dc.contributor.supervisorKoper, Nicola (Natural Resources Institute)en_US
dc.contributor.authorSliwinski, Maggi
dc.date.accessioned2011-09-21T18:05:30Z
dc.date.available2011-09-21T18:05:30Z
dc.date.issued2011-09-21
dc.identifier.urihttp://hdl.handle.net/1993/4937
dc.description.abstractThere is little information comparing the impacts of bison and cattle grazing in the northern mixed-grass prairies; understanding which grazer to use for management is important. I collected data in sites grazed by bison or cattle using point counts to survey the songbird community, and habitat structure measurements. I used generalized- and non-linear mixed models to determine the relationships between grazers and habitat or songbird communities. Bison and cattle grazing caused changes in habitat structure, including decreased vegetation height and litter depth. Sprague’s pipits declined more steeply with bison grazing than with cattle grazing. 0.4 AUM/ha was an important threshold, because chestnut-collared longspurs increased in abundance at this stocking rate, and grasshopper sparrows decreased in abundance at this stocking rate. Either grazer is appropriate for managing for grassland birds. There is also an opportunity to encourage surrounding landowners to manage their lands for the benefit of wildlife.en_US
dc.language.isoengen_US
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectmixed-grass prairieen_US
dc.subjectsongbirdsen_US
dc.titleChanges in grassland songbird abundance and diversity in response to grazing by bison and cattle in the northern mixed-grass prairieen_US
dc.typeinfo:eu-repo/semantics/masterThesis
dc.typemaster thesisen_US
dc.degree.disciplineNatural Resources Managementen_US
dc.contributor.examiningcommitteeMarkham, John (Biology) Wilmshurst, John (Jasper National Park)en_US
dc.degree.levelMaster of Natural Resources Management (M.N.R.M.)en_US
dc.description.noteOctober 2011en_US


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