Prescribed fire increases forage mineral content in grazed rangeland DOI

Megan R. Wanchuk,

Devan Allen McGranahan, Kevin K. Sedivec

и другие.

International Journal of Wildland Fire, Год журнала: 2024, Номер 33(7)

Опубликована: Июль 3, 2024

Background Sustainable rangeland management balances production and conservation. While a broad literature describesthe conservation benefits of prescribed fire, for livestock have emerged more slowly. Mineral nutrition is important health performance, but the impact fire on mineral concentration forages, especially in northern US Great Plains, remains unknown. Aims We investigated how burning affects forage early late growing season. Methods Data were collected mixed-grass prairie south-central North Dakota, USA. Vegetation was clipped from recently burned, 1 year post-fire, 2 years not-yet-burned patches at same sampling points spring summer. Samples analysed calcium, phosphorus, magnesium, potassium, copper, iron, manganese, zinc concentration. Key results Burning increased across most minerals. Phosphorous, copper higher burned areas summer; magnesium manganese only during Late-season iron levels with time since fire. Conclusions Prescribed has positive effect content. Implications potential to reduce supplementation costs improve cow performance.

Язык: Английский

Improving forage nutritive value and livestock performance with spatially-patchy prescribed fire in grazed rangeland DOI

Megan R. Wanchuk,

Devan Allen McGranahan, Kevin K. Sedivec

и другие.

Agriculture Ecosystems & Environment, Год журнала: 2024, Номер 368, С. 109004 - 109004

Опубликована: Апрель 10, 2024

Язык: Английский

Процитировано

6
Spatially‐discrete disturbance overrides inherent environmental heterogeneity in grazed mixed‐grass prairie DOI Open Access
Devan Allen McGranahan

Oikos, Год журнала: 2025, Номер unknown

Опубликована: Фев. 21, 2025

Spatial heterogeneity is described as patchiness, with patches constituting local aggregations of low variability in one or more ecosystem properties. Rangelands are heterogeneous natural ecosystems which spatial can be attributed to inherent due soils, topography, and hydrology, disturbances such fire grazing. But little research has directly compared the relative contributions disturbance variability. Here, variance partitioning used parse soil maps, disturbance‐driven imposed by patch burns, grazed mixed‐grass prairie US Northern Great Plains. Results support hypothesis that overrides heterogeneity. Specifically, on pastures without aboveground plant biomass depended topographic position; patch‐burned pastures, was driven time‐since‐fire successional stages. Variability forage nutritive composition distribution grazers were also patchiness when spatially‐discrete fire, while role weak for both. These results provide evidence a default, often bottom–up control absence overridden top–down effects.

Язык: Английский

Процитировано

0
Perceptions of Prescribed Fire Among Ranchers near Northern US National Grasslands DOI Creative Commons

Kathleen Boland,

Devan Allen McGranahan, Benjamin A. Geaumont

и другие.

Fire, Год журнала: 2025, Номер 8(3), С. 102 - 102

Опубликована: Март 4, 2025

Many barriers prevent ranchers from supporting prescribed fire on grazing leases or their own land. Barriers include negative perceptions of resources limitations, and fear liability. We surveyed ranching landowners around four National Grasslands in North South Dakota—public grazinglands managed by the USDA Forest Service—to assess landowner attitudes towards provide insight into to using burning Grasslands. Respondents reported being motivated an interest stewardship want managers prioritize sound science decision-making But respondents generally had little awareness potential benefits. With respect fire, specifically, greatest degree trust activity and/or information Pheasants Forever county Extension, lowest Service. Despite proximity public grazingland, where risk resource for would be borne Service, disagreed that use should increased stated a lack readiness conduct burns ranches. As primary these communities appear perceptions, educational materials trusted sources opportunities engage with might help explain when appropriate landscape aid understanding between entities like those who are concerned about use.

Язык: Английский

Процитировано

0
Patch‐Burn Grazing Increased Structural Heterogeneity in Southwestern North Dakota Rangelands DOI
Jonathan W. Spiess, Devan Allen McGranahan, Torre J. Hovick

и другие.

Applied Vegetation Science, Год журнала: 2025, Номер 28(1)

Опубликована: Янв. 1, 2025

ABSTRACT Aims Persistent land use change throughout the North American Great Plains increases need to maintain and improve ecosystem service delivery from remaining rangelands meet production conservation goals. Vegetation structure is an property influenced by management that has site selection implications for wildlife livestock. In this study, we investigated efficacy of patch‐burn grazing increase structural heterogeneity on semi‐arid post‐Conservation Reserve Program (CRP) grasslands in southwestern Dakota. Location Hettinger Research Extension Center Hettinger, Methods We surveyed plant community composition characteristics pastures during 2017–2020 summer seasons. Three were stocked with cow‐calf pairs three sheep. also units conventional (hay or idle) active post‐CRP enrolled summers 2018–2020. tested vegetative differences between patches varying time since fire grazer types using mixed‐effect models ordination. used variance partitioning determine if contrast increased over study period was higher relative management. Results Time significant all characteristics, recently burned being different other patches. There no cattle sheep pastures, but forb legume cover lower pastures. Structural greater than Conclusions Increased important supporting a broad suite rangeland can stabilize forage production. This supports expectation moderate stocking rates will regardless type, practitioners should consider which suites species may benefit.

Язык: Английский

Процитировано

0
Variability in Weight Gains of Cows and Their Calves Across Grazing Management and Dam Age Class: Implications for Maternal Productivity DOI
Devan Allen McGranahan,

Megan R. Wanchuk,

Kevin K. Sedivec

и другие.

Rangeland Ecology & Management, Год журнала: 2025, Номер 100, С. 121 - 125

Опубликована: Апрель 10, 2025

Язык: Английский

Процитировано

0
ResMamba: A state–space model approach and benchmark dataset for precise forage identification in desert rangelands DOI
Tao Zhang, Chuanzhong Xuan, Zhaohui Tang

и другие.

Expert Systems with Applications, Год журнала: 2025, Номер 280, С. 127411 - 127411

Опубликована: Апрель 11, 2025

Язык: Английский

Процитировано

0
Prescribed fire increases forage mineral content in grazed rangeland DOI

Megan R. Wanchuk,

Devan Allen McGranahan, Kevin K. Sedivec

и другие.

International Journal of Wildland Fire, Год журнала: 2024, Номер 33(7)

Опубликована: Июль 3, 2024

Background Sustainable rangeland management balances production and conservation. While a broad literature describesthe conservation benefits of prescribed fire, for livestock have emerged more slowly. Mineral nutrition is important health performance, but the impact fire on mineral concentration forages, especially in northern US Great Plains, remains unknown. Aims We investigated how burning affects forage early late growing season. Methods Data were collected mixed-grass prairie south-central North Dakota, USA. Vegetation was clipped from recently burned, 1 year post-fire, 2 years not-yet-burned patches at same sampling points spring summer. Samples analysed calcium, phosphorus, magnesium, potassium, copper, iron, manganese, zinc concentration. Key results Burning increased across most minerals. Phosphorous, copper higher burned areas summer; magnesium manganese only during Late-season iron levels with time since fire. Conclusions Prescribed has positive effect content. Implications potential to reduce supplementation costs improve cow performance.

Язык: Английский

Процитировано

3