{"id":{"repo_id":"sdstate","oai_identifier":"oai:openprairie.sdstate.edu:etd-1173"},"canonical_url":"https://search.dev.ndltd.org/etd/sdstate/oai:openprairie.sdstate.edu:etd-1173","repository":{"repo_id":"sdstate","name":"South Dakota State University","base_url":"https://openprairie.sdstate.edu/do/oai/"},"display":{"title":"Effects of Grazing Systems on Sharp-tailed Grouse Habitat","abstract":"Effects of grazing systems on sharp-tailed grouse (Pedioecetes phasianellus jamesi) nesting and brooding habitats in the Little Missouri National Grasslands of southwestern North Dakota were evaluated. Three grazing allotments with deferred-rotation grazing systems and three allotments with season-long grazing systems were randomly selected for study. Fifty measurements of vegetation were taken using the height-density pole on line transects in each of three range sites; rolling grasslands, upland grasslands and lowland draws. Vegetation was sampled in late spring, summer and fall of 1976 and early spring of 1977. Average height-density of vegetation for the season-long grazing system was significantly greater than vegetation in the deferred-rotation system (P<0.01). Average visual obstruction readings (VOR) were 1.10 ± .02 for the season-long systems and 0.75±.02 for deferred-rotation systems. Grazing allotments utilizing the season-long grazing system had consistently higher VOR averages than allotments with the deferred-rotation system in all four sampling periods. Visual obstruction readings increased form late spring (1.15±.03) to summer (1.32±.03) and decreased in the fall (0.69±.03). The following early spring, VOR average decreased to 0.55±.03. Vegetation around six stock ponds each grazing system was measured on three line transects radiating from each pond. Fifty measurements of vegetation were taken in six 91.4 m segments during the summer and fall 1976. Visual obstruction readings of vegetation around ponds in season-long systems were significantly higher (P<0.05) than VOR of vegetation around ponds in deferred-rotation systems. Height and density of vegetation became uniform beyond 182.8 m from each pond edge. The use of the deferred-rotation grazing system may be detrimental to vegetation cover types used by sharptails for nesting and brooding. A re-evaluation of the range capacity ratings and land management techniques on the grasslands will benefit sharp-tailed grouse habitat in southwestern North Dakota.","abstract_html":"Effects of grazing systems on sharp-tailed grouse (Pedioecetes phasianellus jamesi) nesting and brooding habitats in the Little Missouri National Grasslands of southwestern North Dakota were evaluated. Three grazing allotments with deferred-rotation grazing systems and three allotments with season-long grazing systems were randomly selected for study. Fifty measurements of vegetation were taken using the height-density pole on line transects in each of three range sites; rolling grasslands, upland grasslands and lowland draws. Vegetation was sampled in late spring, summer and fall of 1976 and early spring of 1977. Average height-density of vegetation for the season-long grazing system was significantly greater than vegetation in the deferred-rotation system (P<0.01). Average visual obstruction readings (VOR) were 1.10 ± .02 for the season-long systems and 0.75±.02 for deferred-rotation systems. Grazing allotments utilizing the season-long grazing system had consistently higher VOR averages than allotments with the deferred-rotation system in all four sampling periods. Visual obstruction readings increased form late spring (1.15±.03) to summer (1.32±.03) and decreased in the fall (0.69±.03). The following early spring, VOR average decreased to 0.55±.03. Vegetation around six stock ponds each grazing system was measured on three line transects radiating from each pond. Fifty measurements of vegetation were taken in six 91.4 m segments during the summer and fall 1976. Visual obstruction readings of vegetation around ponds in season-long systems were significantly higher (P<0.05) than VOR of vegetation around ponds in deferred-rotation systems. Height and density of vegetation became uniform beyond 182.8 m from each pond edge. The use of the deferred-rotation grazing system may be detrimental to vegetation cover types used by sharptails for nesting and brooding. A re-evaluation of the range capacity ratings and land management techniques on the grasslands will benefit sharp-tailed grouse habitat in southwestern North Dakota.","abstract_has_math":false,"creators":["Mattise, Samuel N."],"institution":null,"degree_name":"Master of Science (MS)","degree_level":"Thesis - Open Access","degree_discipline":"Wildlife and Fisheries Science","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1978,"date_issued":"1978-01-01T08:00:00Z","date_published":"1978-01-01T08:00:00Z","updated_at":"2026-07-24T04:27:36Z","subjects":["Natural Resources and Conservation"],"languages":["en"],"rights":["

No Copyright - Non-Commercial Use Only
http://rightsstatements.org/vocab/NoC-NC/1.0/

"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://openprairie.sdstate.edu/etd/173","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Mattise, Samuel N."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Wildlife and Fisheries Science"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis - Open Access"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MS)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Natural Resources and Conservation"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["

No Copyright - Non-Commercial Use Only
http://rightsstatements.org/vocab/NoC-NC/1.0/

"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://openprairie.sdstate.edu/etd/173"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Effects of grazing systems on sharp-tailed grouse (Pedioecetes phasianellus jamesi) nesting and brooding habitats in the Little Missouri National Grasslands of southwestern North Dakota were evaluated. Three grazing allotments with deferred-rotation grazing systems and three allotments with season-long grazing systems were randomly selected for study. Fifty measurements of vegetation were taken using the height-density pole on line transects in each of three range sites; rolling grasslands, upland grasslands and lowland draws. Vegetation was sampled in late spring, summer and fall of 1976 and early spring of 1977. Average height-density of vegetation for the season-long grazing system was significantly greater than vegetation in the deferred-rotation system (P<0.01). Average visual obstruction readings (VOR) were 1.10 ± .02 for the season-long systems and 0.75±.02 for deferred-rotation systems. Grazing allotments utilizing the season-long grazing system had consistently higher VOR averages than allotments with the deferred-rotation system in all four sampling periods. Visual obstruction readings increased form late spring (1.15±.03) to summer (1.32±.03) and decreased in the fall (0.69±.03). The following early spring, VOR average decreased to 0.55±.03. Vegetation around six stock ponds each grazing system was measured on three line transects radiating from each pond. Fifty measurements of vegetation were taken in six 91.4 m segments during the summer and fall 1976. Visual obstruction readings of vegetation around ponds in season-long systems were significantly higher (P<0.05) than VOR of vegetation around ponds in deferred-rotation systems. Height and density of vegetation became uniform beyond 182.8 m from each pond edge. The use of the deferred-rotation grazing system may be detrimental to vegetation cover types used by sharptails for nesting and brooding. A re-evaluation of the range capacity ratings and land management techniques on the grasslands will benefit sharp-tailed grouse habitat in southwestern North Dakota."]},{"key":"dc:title","label":"Title","values":["Effects of Grazing Systems on Sharp-tailed Grouse Habitat"]}]}],"canonical_facts":{"dc:creator":["Mattise, Samuel N."],"dc:description.abstract":["Effects of grazing systems on sharp-tailed grouse (Pedioecetes phasianellus jamesi) nesting and brooding habitats in the Little Missouri National Grasslands of southwestern North Dakota were evaluated. Three grazing allotments with deferred-rotation grazing systems and three allotments with season-long grazing systems were randomly selected for study. Fifty measurements of vegetation were taken using the height-density pole on line transects in each of three range sites; rolling grasslands, upland grasslands and lowland draws. Vegetation was sampled in late spring, summer and fall of 1976 and early spring of 1977. Average height-density of vegetation for the season-long grazing system was significantly greater than vegetation in the deferred-rotation system (P<0.01). Average visual obstruction readings (VOR) were 1.10 ± .02 for the season-long systems and 0.75±.02 for deferred-rotation systems. Grazing allotments utilizing the season-long grazing system had consistently higher VOR averages than allotments with the deferred-rotation system in all four sampling periods. Visual obstruction readings increased form late spring (1.15±.03) to summer (1.32±.03) and decreased in the fall (0.69±.03). The following early spring, VOR average decreased to 0.55±.03. Vegetation around six stock ponds each grazing system was measured on three line transects radiating from each pond. Fifty measurements of vegetation were taken in six 91.4 m segments during the summer and fall 1976. Visual obstruction readings of vegetation around ponds in season-long systems were significantly higher (P<0.05) than VOR of vegetation around ponds in deferred-rotation systems. Height and density of vegetation became uniform beyond 182.8 m from each pond edge. The use of the deferred-rotation grazing system may be detrimental to vegetation cover types used by sharptails for nesting and brooding. A re-evaluation of the range capacity ratings and land management techniques on the grasslands will benefit sharp-tailed grouse habitat in southwestern North Dakota."],"dc:identifier":["https://openprairie.sdstate.edu/etd/173"],"dc:language":["en"],"dc:rights":["

No Copyright - Non-Commercial Use Only
http://rightsstatements.org/vocab/NoC-NC/1.0/

"],"dc:subject":["Natural Resources and Conservation"],"dc:title":["Effects of Grazing Systems on Sharp-tailed Grouse Habitat"],"thesis:degree_discipline":["Wildlife and Fisheries Science"],"thesis:degree_level":["Thesis - Open Access"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T04:27:36Z"}