Use of a Profile Board in Sand Shinnery Oak Communities

Guthery, Fred S.; Doerr, Ted B.; Taylor, Maple A.

doi:10.2307/3898138

Cited by 34 publications

(21 citation statements)

References 5 publications

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“…We also recorded vegetation parameters such as grass, forb, bare ground, and litter coverage in a 0.5 m 2 quadrat centered over black spheres both at the nest bowl and the surrounding micro-sites. Additionally, we measured vegetation height and litter depth at each black sphere and took a measure of biomass structure at each nest using a Nudd's profile board (Nudds 1977, Guthery et al 1981.…”

Section: Data Collectionmentioning

confidence: 99%

Landscapes as a moderator of thermal extremes: a case study from an imperiled grouse

et al. 2014

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Abstract. The impacts of climate driven change on ecosystem processes and biodiversity are pervasive and still not fully understood. Biodiversity loss, range shifts, and phenological mismatches are all issues associated with a changing climate that are having significant impacts on individuals and ecosystems alike. Investigating and identifying effective management strategies that can conserve vulnerable species should be the focus of current and future climate change research. We investigated thermal properties of habitat for an imperiled grouse (Greater Prairie-chicken; Tympanuchus cupido) in tallgrass prairie characterized by heterogeneous fire and grazing (the fire-grazing interaction). We examined operative temperature at varying scales relevant to grouse and used historic and forecasted climate data to estimate thermal stress during nesting activities. We found that heterogeneous grasslands have high thermal variability with operative temperature ranging as much as 238C across the landscape. Grouse exhibited strong selection for cooler thermal environments as nest sites were as much as 88C cooler than the surrounding landscape, and fine-scale differences in thermal environments were nearly 48C cooler than sites within 2 m of nests. Additionally, forecasted climate scenarios indicate grouse will experience 2-4 times the number of hours above thermal stress thresholds, emphasizing the need for informed conservation management. Overall, these data provide evidence that variation in grassland structure resulting from the fire-grazing interaction may be important in moderating thermal environments and highlights the complex and interactive effects of restored ecological processes on ecosystems.

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Section: Data Collectionmentioning

confidence: 99%

Landscapes as a moderator of thermal extremes: a case study from an imperiled grouse

et al. 2014

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“…Within each quadrat we measured grass, forb, shrub, bare ground, and litter cover. Additionally, we measured litter depth and vegetation height within each quadrat and took a reading of vertical vegetation structure for the plot using a Nudd's board modified for grassland environments (Nudds 1977, Guthery et al 1981). …”

Section: Data Collectionmentioning

confidence: 99%

Structural heterogeneity increases diversity of non‐breeding grassland birds

2014

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Abstract. Grassland birds have experienced greater population declines than any other guild of birds inNorth America, and yet we know little about habitat use and the affects of management during their nonbreeding period on wintering grounds. The paucity of information on wintering grassland birds limits our ability to develop effective conservation strategies. We investigated habitat use by the winter bird community in grasslands with restored heterogeneity resulting from the interactive effects of fire and grazing. We used 500 m line transects distributed across patches (i.e., ,13, 13-24, and .24 months post disturbance) resulting from spring burning with growing season grazing (April-Sept) and quantified avian relative abundance, community structure, and probability of patch occupancy while accounting for imperfect detection. Grassland structure that resulted from the fire-grazing interaction created heterogeneity among patches that influenced avian habitat use during winter. Generalist birds such as the Savannah Sparrow (Passerculus sandwichensis) and meadowlarks (Sturnella spp.) were relatively common in all patch types while more specialized species such as the Smith's Longspur (Calcarius pictus) and Le Conte's Sparrow (Ammodramus leconteii ) reached greatest abundance and probability of occupancy in the patches with the least and greatest time post disturbance, respectively. This research provides novel information on the response of wintering birds to restored ecological processes in grasslands and can improve efforts to create effective conservation strategies. Our findings add to a growing body of literature supporting the use of fire and grazing to create a shifting grassland mosaic that increases vegetation structural and compositional heterogeneity and maximizes native biodiversity within rangeland ecosystems through the conservation of natural patterns and processes.

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“…We estimated visual obstruction every 10 m along the transect using a profile board as described by Nudds (1977) and modified for sand shinnery oak communities by Guthery et al (1981). The 6.8-cm wide profile board had 12 strata, each stratum being 10 cm tall.…”

Section: Study Area and Methodsmentioning

confidence: 99%

Journal of Range Management, Volume 54, Number 6 (November 2001)

2001

REM

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Published bimonthly-January, March, May, July, September, November The Society For Range Management, founded in 1948 as the American Society of Range Management, is a nonprofit association incorporated under the laws of the State of Wyoming. It is recognized exempt from Federal income tax, as a scientific and educational organization, under the provisions of Section 501(c)(3) of the Internal Revenue Code, and also is classed as a public foundation as described in Section 509(a)(2) of the Code. The name of the Society was changed in 1971 by amendment of the Articles of Incorporation.The objectives for which the corporation is established are:- The Journal of Range Management is a publication of the Society for RangeManagement. It serves as a forum for the presentation and discussion of facts, ideas, and philosophies pertaining to the study, management, and use of rangelands and their several resources. Accordingly, all material published herein is signed and reflects the individual views of the authors and is not necessarily an official position of the Society. Manuscripts from anyone-nonmembers as well as members-are welcome and will be given every consideration by the editors. Editorial comments by an individual are also welcome and, subject to acceptance by the editor, will be published as a "Viewpoint."In Cooperation With: Some of the articles appearing in The assumption that ranchers are profit maximizers and that good managers can adopt technology are common among technology developers (White 1987, Workman 1986. However, the adoption of new technology by land managers is affected by many factors other than productivity including perceived risk and uncertainty (Zepada 1994). Fliegel (1993 proposed a technology adoption model for land managers in which the interaction of community characteristics (age, education, income, size of farm and tenure status) social participation in farm and/or community organizations, and communication factors (extension contact, print media contact, and radio contact) affect the rate of technology adoption. Yet, Barao (1992) Station, Tex. 77843; professor, Texas Agr. Exp. Sta., US Hwy. 87 North, San Angelo, Tex. 76901; and professor, Texas Agr. Ext. Service, US Hwy. 87 North, San Angelo, Tex. 76901 Research was funded through a gift from Dow AgroSciences LLC and a Texas A&M University Faculty Mini-Grant.Manuscript accepted 3 Feb. 2001. ResumenEl cambio demográfico de la propiedad de la tierra y el mayor reconocimiento de que alguna cantidad de plantas leñosas es valiosa para ciertos objetivos de manejo de pastizales ha conducido a aumentar el interés de practicas selectivas de manejo de arbustos. Los Quebradores de Arbustos es un programa colaborativo de extensión/investigación desarrollado en respuesta de este creciente interés. En 1999 se condujo un muestreo entre los agentes agrícolas municipales de extensión de Texas para determinar sus percepciones acerca del interés en y la adopción de prácticas de quebrado de arbustos. Utilizando 3 fotografías de umbral, los Agente...

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Use of a Profile Board in Sand Shinnery Oak Communities

Cited by 34 publications

References 5 publications

Landscapes as a moderator of thermal extremes: a case study from an imperiled grouse

Landscapes as a moderator of thermal extremes: a case study from an imperiled grouse

Structural heterogeneity increases diversity of non‐breeding grassland birds

Journal of Range Management, Volume 54, Number 6 (November 2001)

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