RangelandsPub Date : 2023-10-01DOI: 10.1016/j.rala.2023.06.002
Royce Larsen , Joseph G. Robins , Kevin B. Jensen , Matthew Shapero , Karl Striby , LynneDee Althouse , Melvin George , Marc Horney , Devii Rao , Alexander Hernandez , Randy Dahlgren , James Bartolome
{"title":"Statistical considerations of using the 1-ft2 quadrat for monitoring peak standing crop and residual dry matter on California annual rangelands","authors":"Royce Larsen , Joseph G. Robins , Kevin B. Jensen , Matthew Shapero , Karl Striby , LynneDee Althouse , Melvin George , Marc Horney , Devii Rao , Alexander Hernandez , Randy Dahlgren , James Bartolome","doi":"10.1016/j.rala.2023.06.002","DOIUrl":"https://doi.org/10.1016/j.rala.2023.06.002","url":null,"abstract":"<div><p></p><ul><li><span>•</span><span><p>Peak standing crop (PSC) and residual dry matter (RDM) are the primary measures of production and grazing intensity on California's annual rangelands.</p></span></li><li><span>•</span><span><p>One of the most common methods of monitoring forage metrics is to clip 1-ft<sup>2</sup> quadrats. The USDA Forest Service, Bureau of Land Management, universities, and other land managers have been using this methodology since the 1930s.</p></span></li><li><span>•</span><span><p>We used best linear unbiased predictors (BLUEs) to determine 95% confidence intervals for PSC and RDM. For both PSC and RDM, as the number of samples taken increased from 1 to 10, the predictive ability also significantly increased. We found no evidence of increased predictive power past 10 samples.</p></span></li></ul></div>","PeriodicalId":101057,"journal":{"name":"Rangelands","volume":"45 5","pages":"Pages 102-108"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49736712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RangelandsPub Date : 2023-10-01DOI: 10.1016/j.rala.2023.09.001
RangelandsPub Date : 2023-10-01DOI: 10.1016/j.rala.2023.06.001
Bob Gillaspy , Shane Green
{"title":"Ecological resistance and resilience in rangelands","authors":"Bob Gillaspy , Shane Green","doi":"10.1016/j.rala.2023.06.001","DOIUrl":"https://doi.org/10.1016/j.rala.2023.06.001","url":null,"abstract":"<div><p></p><ul><li><span>•</span><span><p>Resistance and resilience are commonly used terms in discussions about agriculture and future ecological conditions.</p></span></li><li><span>•</span><span><p>We provide a common understanding of these terms as they apply to the ecology of grazed systems.</p></span></li><li><span>•</span><span><p>We discuss the relationship between ecological resistance and resilience, disturbances, and ecological processes.</p></span></li><li><span>•</span><span><p>We present examples of how to make what is known about ecological resistance and resilience in grazed ecosystems accessible to planners and their clients.</p></span></li></ul></div>","PeriodicalId":101057,"journal":{"name":"Rangelands","volume":"45 5","pages":"Pages 83-91"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49722546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RangelandsPub Date : 2023-10-01DOI: 10.1016/j.rala.2023.06.003
Jeffrey K. O'Hara , Julian Reyes , Lynn G. Knight , Joel Brown
{"title":"Why has the adoption of rotational grazing declined in parts of the United States?","authors":"Jeffrey K. O'Hara , Julian Reyes , Lynn G. Knight , Joel Brown","doi":"10.1016/j.rala.2023.06.003","DOIUrl":"https://doi.org/10.1016/j.rala.2023.06.003","url":null,"abstract":"<div><p></p><ul><li><span>•</span><span><p>Conservation policies promote sustainable grasslands management practices, like rotational or management-intensive (RMI) grazing, in the United States.</p></span></li><li><span>•</span><span><p>The self-reported adoption of RMI grazing declined in the United States between 2007 and 2017, and few studies have investigated this trend.</p></span></li><li><span>•</span><span><p>We use panel data to estimate county-level fixed effects regressions to assess if changes in the size of cattle operations are influencing this trend. We estimate a regression for the United States, as well as regressions by Climate Hub region.</p></span></li><li><span>•</span><span><p>We find nationally, as well as within six of the eight Climate Hub regions, an increase in cattle operations with <20 head leads to a smaller increase in RMI grazing relative to an increase in cattle operations with 20-199 head. However, this effect is reversed in the Northeast.</p></span></li><li><span>•</span><span><p>Nationally, we find similar effects on RMI grazing among cattle operations with 20-199 head and ≥200 head. Still, in two of the Climate Hub regions (Midwest and Southeast), cattle operations with 20-199 head lead to greater RMI grazing adoption than cattle operations with ≥200 head. Thus, declines in RMI grazing are most strongly associated with declines in small and medium-sized cattle operations.</p></span></li></ul></div>","PeriodicalId":101057,"journal":{"name":"Rangelands","volume":"45 5","pages":"Pages 92-101"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49736711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RangelandsPub Date : 2023-09-19DOI: 10.1016/j.rala.2023.08.003
Shawn W. Salley
{"title":"","authors":"Shawn W. Salley","doi":"10.1016/j.rala.2023.08.003","DOIUrl":"https://doi.org/10.1016/j.rala.2023.08.003","url":null,"abstract":"","PeriodicalId":101057,"journal":{"name":"Rangelands","volume":"45 6","pages":"Pages 132-134"},"PeriodicalIF":0.0,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138454158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RangelandsPub Date : 2023-09-09DOI: 10.1016/j.rala.2023.08.001
Megan R. Banwarth , Janae Lewis , Karen Cannon , Zach D. McFarlane
{"title":"Survey of rancher grazing management practices in extensive rangeland production systems of the Central Coast of California","authors":"Megan R. Banwarth , Janae Lewis , Karen Cannon , Zach D. McFarlane","doi":"10.1016/j.rala.2023.08.001","DOIUrl":"10.1016/j.rala.2023.08.001","url":null,"abstract":"<div><p></p><ul><li><span>•</span><span><p>Because of the diverse rangeland ecosystems across California and in the Central Coast region, producers employed a wide array of grazing management practices to best benefit the goals of their operation.</p></span></li><li><span>•</span><span><p>Top priority grazing goals include fire suppression and cattle health, while the lowest priority includes increased forage species diversity and wildlife management.</p></span></li><li><span>•</span><span><p>Producers indicated they monitored the grazing behavior of their cattle and used mineral and protein supplementation.</p></span></li><li><span>•</span><span><p>We discovered three themes among the qualitative interviews that drove grazing management decision-making among producer respondents: specific characteristics of the managed rangelands, reactions to and planning for extreme weather patterns and natural disasters, and concerns about the divide between rural and urban understanding of management of California rangelands.</p></span></li><li><span>•</span><span><p>Most producers responded that their grazing management systems were successful, and their grazing management methodology was dependent on the specific landscape and ownership/management of the land.</p></span></li></ul></div>","PeriodicalId":101057,"journal":{"name":"Rangelands","volume":"45 6","pages":"Pages 113-120"},"PeriodicalIF":0.0,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0190052823000354/pdfft?md5=efe30d83da48ff1c0af43ebf15db986a&pid=1-s2.0-S0190052823000354-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135205349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RangelandsPub Date : 2023-09-09DOI: 10.1016/j.rala.2023.08.002
Shane A. Green , F. E. (Fee) Busby
{"title":"Integrating concepts of ecological sites, state-and-transition models, rangeland health, and NRCS conservation planning","authors":"Shane A. Green , F. E. (Fee) Busby","doi":"10.1016/j.rala.2023.08.002","DOIUrl":"10.1016/j.rala.2023.08.002","url":null,"abstract":"<div><p></p><ul><li><span>•</span><span><p>Resource managers are challenged to inventory and assess the condition of rangeland ecosystems, determine any existing management problems, implement management plans developed to correct problems and improve conditions, and predict and monitor changes in conditions.</p></span></li><li><span>•</span><span><p>Ecological site descriptions, state-and-transition models, and rangeland health assessments are three powerful tools to help managers understand current and potential conditions, describe resource concerns, and develop conservation plans to achieve desired conditions.</p></span></li><li><span>•</span><span><p>Resource concern risk ratings are a new feature of ecological site descriptions that enhance the integration of these tools and resources.</p></span></li></ul></div>","PeriodicalId":101057,"journal":{"name":"Rangelands","volume":"45 6","pages":"Pages 121-131"},"PeriodicalIF":0.0,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0190052823000366/pdfft?md5=01a6ea81be1b881a366a9cf7b871ec19&pid=1-s2.0-S0190052823000366-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135249014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}