Rangeland Ecology & Management

Items from 1 to 20 out of 81 results

article

Rotational Grazing Systems and Livestock Grazing Behavior in Shrub-Dominated Semi-Arid and Arid Rangelands

Derek W. Bailey, Joel R. Brown

Rangeland Ecology & Management > 2011 > 64 > 1 > 1-9

Rotational grazing systems (RGS) are often implemented to alleviate undesirable selective grazing by livestock. At both fine and coarse scales, livestock selectively graze individual plants, patches, communities, and landscapes. Smaller pastures, increased stocking density, and rotation allow managers to constrain livestock movement and determine season and frequency of grazing, potentially limiting...

article

Long-Term Effects of Weed Control With Picloram Along a Gradient of Spotted Knapweed Invasion

Yvette K. Ortega, Dean E. Pearson

Rangeland Ecology & Management > 2011 > 64 > 1 > 67-77

Broadleaf herbicides are commonly used in rangelands to suppress exotic weeds and release native communities from negative impacts of invasion. However, few studies have comprehensively evaluated treatment effects on differing community components across a gradient of initial invasion levels. We conducted a 6-yr experiment within grasslands of western Montana to measure local-scale effects of a broadcast...

article

Grazing Deferment Effects on Forage Diet Quality and Ewe Performance Following Summer Rangeland Fire

Richard C. Waterman, Lance T. Vermeire

Rangeland Ecology & Management > 2011 > 64 > 1 > 18-27

Complete rest or grazing deferment is a general recommendation to encourage vegetative recovery following fire in the western United States. However, effects of grazing deferments on animal performance have not been determined. Prescribed fires were individually applied to nine separate, 1.5-ha pastures each year (2006 and 2007) for a total of 18 pastures. Grazing was deferred until spring (16 May),...

article

Field Test of Digital Photography Biomass Estimation Technique in Tallgrass Prairie

Sherry A. Leis, Lloyd W. Morrison

Rangeland Ecology & Management > 2011 > 64 > 1 > 99-103

Fuel loading information is important for prescribed fire planning, evaluating wildfire risk, and understanding fire effects in grassland. Yet fuel loads in grasslands often go unmeasured because of the time required to clip plots and process samples, as well as limited access or proximity to a drying oven. We tested the digital photography biomass estimation technique for measuring fuel load in grasslands...

article

Long-Term Vegetation Trends on Grazed and Ungrazed Chihuahuan Desert Rangelands

Francisco Molinar, Joe Navarro, Jerry Holechek, Dee Galt, more

Rangeland Ecology & Management > 2011 > 64 > 1 > 104-108

Long-term information on the effects of managed grazing versus excluded grazing effects on vegetation composition of desert rangelands is limited. Our study objectives were to evaluate changes in frequency of vegetation components and ecological condition scores under managed livestock grazing and excluded livestock grazing over a 38-yr period at various locations in the Chihuahuan Desert of southwestern...

article

Estimating Grass Yield on Blue Grama Range From Seasonal Rainfall and Soil Moisture Measurements

L. Allen Torell, Kirk C. McDaniel, Victor Koren

Rangeland Ecology & Management > 2011 > 64 > 1 > 56-66

To estimate annual forage production from moisture conditions it is important to consider the timing and seasonality of precipitation events as well as the past history of storm events. In this study we examined this relationship using 16yr of annual measurements of herbaceous standing crop recorded at two study sites located on the Corona Range and Livestock Research Center in central New Mexico...

article

LiDAR-Based Classification of Sagebrush Community Types

Temuulen Tsagaan Sankey, Pamela Bond

Rangeland Ecology & Management > 2011 > 64 > 1 > 92-98

Sagebrush (Artemisia spp.) communities constitute the largest temperate semidesert in North America and provide important rangelands for livestock and habitat for wildlife. Remote sensing methods might provide an efficient method to monitor sagebrush communities. This study used airborne LiDAR and field data to measure vegetation heights in five different community types at the Reynolds Creek Experimental...

article

Threshold Distinctions Between Equilibrium and Nonequilibrium Pastoral Systems Along a Continuous Climatic Gradient

Tomoo Okayasu, Toshiya Okuro, Undarmaa Jamsran, Kazuhiko Takeuchi

Rangeland Ecology & Management > 2011 > 64 > 1 > 10-17

In equilibrium environments where rainfall is relatively stable, grazing animal–vegetation dynamics are density-dependent; it is therefore appropriate to calculate carrying capacities and use them to define sustainable animal populations. In contrast, nonequilibrium environments are characterized by fluctuations in characteristics such as rainfall, resulting in fluctuations in plant biomass and in...

article

Performance of Sheep and Goats Fed Arctostaphylos canescens With and Without Polyethylene Glycol Supplementation

Nelmy Narvaez, Arieh Brosh, Miguel Mellado, Wolfgang Pittroff

Rangeland Ecology & Management > 2011 > 64 > 1 > 85-91

Arctostaphylos canescens Eastw. is considered an important element in the chaparral fire matrix and an invasive plant in coniferous forest plantations in California. Previous studies reported that dry matter intake of Arctostaphylos was low, presumably because of its low nutritional quality and high condensed tannin (CT) content. We hypothesized that intake and digestibility of Arctostaphylos could...

article

Biomass Not Linked to Perennial Grass Mortality Following Severe Wildfire in the Southern High Plains

Sandra Rideout-Hanzak, David B. Wester, Carlton M. Britton, Heather Whitlaw

Rangeland Ecology & Management > 2011 > 64 > 1 > 47-55

In March 2006 the East Amarillo Complex (EAC) wildfires burned over 367 000ha of short and mixed grass prairie of the southern High Plains, USA. We studied EAC wildfire effects on perennial grass mortality and peak standing crop on Deep Hardland and Mixedland Slopes ecological sites. Deep Hardlands were dominated by blue grama (Bouteloua gracilis H.B.K. [Griffiths]) and buffalograss (Buchloe dactyloides...

article

Growing-Season Disturbance in Tallgrass Prairie: Evaluating Fire and Grazing on Schizachyrium scoparium

Ryan F. Limb, Samuel D. Fuhlendorf, David M. Engle, Jay D. Kerby

Rangeland Ecology & Management > 2011 > 64 > 1 > 28-36

Historically, fire occurred throughout the year in the Great Plains, but current fire prescriptions are generally limited to the dormant season because of concerns for potential damage to fire-sensitive herbaceous plant species deemed economically and ecologically important. We coupled a field-based study and a controlled greenhouse study to quantify the effects of fire season and herbivory on plant...

article

Plant Community and Soil Environment Response to Summer Fire in the Northern Great Plains

Lance T. Vermeire, Jessica L. Crowder, David B. Wester

Rangeland Ecology & Management > 2011 > 64 > 1 > 37-46

Fire is an important process in many ecosystems, especially grasslands. However, documentation of plant community and soil environment responses to fire is limited for semiarid grasslands relative to that for mesic grasslands. Replicated summer fire research is lacking but necessary because summer is the natural fire season and the period of most wildfires in the western United States. We evaluated...

article

Plant Age and Growing Season Nutritional Content Relationships of Three Artemisia tridentata Subspecies

Barry L. Perryman, Teshome Shenkoru, Leroy B. Bruce, Hussein S. Hussein

Rangeland Ecology & Management > 2011 > 64 > 1 > 78-84

The effect of plant age on growing season chemical compositions and rumen fermentation characteristics was determined for three subspecies of big sagebrush: basin (Artemisia tridentata [Nutt.] subsp. tridentata), mountain (A. tridentata subsp. vaseyana [Rybd.] Beetle), and Wyoming (A. tridentata subsp. wyomingensis [Beetle and Young]). In vitro dry matter (IVDMD) and organic matter (IVOMD) disappearance,...

article

Songbird Relationships to Shrub-Steppe Ecological Site Characteristics

Mary I. Williams, Ginger B. Paige, Thomas L. Thurow, Ann L. Hild, more

Rangeland Ecology & Management > 2011 > 64 > 2 > 109-118

Rangeland managers are often faced with the complex challenge of managing sites for multiple uses and for the diverse interests of stakeholders. Standardized monitoring methods that can be used and understood by different agencies and stakeholders would aid management for long-term sustainability of rangelands. In the United States, federal land management agencies have recently based their assessments...

article

Disturbance to Surface Lithic Components of Archaeological Sites by Drill Seeding

Neal M. Bryan, Val Jo Anderson, Rachel A. Fugal

Rangeland Ecology & Management > 2011 > 64 > 2 > 171-177

Federally funded range improvement treatments in the United States require that land managers consider the treatment’s impacts to archaeological sites. Pending archaeological clearance can result in the postponement or exclusion of effective seeding practices, which in turn can result in poor seed establishment, increased weeds, recurrent fire, accelerated soil erosion, and damage to cultural sites...

article

Transition From Sagebrush Steppe to Annual Grass (Bromus tectorum): Influence on Belowground Carbon and Nitrogen

Benjamin M. Rau, Dale W. Johnson, Robert R. Blank, Annmarrie. Lucchesi, more

Rangeland Ecology & Management > 2011 > 64 > 2 > 139-147

Vegetation changes associated with climate shifts and anthropogenic disturbance have major impacts on biogeochemical cycling. Much of the interior western United States currently is dominated by sagebrush (Artemisia tridentata Nutt.) ecosystems. At low to intermediate elevations, sagebrush ecosystems increasingly are influenced by cheatgrass (Bromus tectorum L.) invasion. Little currently is known...

article

Using Digital Photography to Examine Grazing in Montane Meadows

Susan K. McIlroy, Barbara H. Allen-Diaz, Alexander C. Berg

Rangeland Ecology & Management > 2011 > 64 > 2 > 187-195

Cattle (Bos taurus) numbers on national forests are allocated based on allotment grazing capacity, but spatial patterns of timing and density at smaller scales are difficult to assess. However, it is often in meadows or riparian areas that grazing may affect hydrology, biodiversity, and other important ecosystem characteristics. To explore real-time animal presence in montane meadows we distributed...

article

Aspen Recovery Since Wolf Reintroduction on the Northern Yellowstone Winter Range

David S. Kimble, Daniel B. Tyers, Jim Robison-Cox, Bok F. Sowell

Rangeland Ecology & Management > 2011 > 64 > 2 > 119-130

Quaking aspen (Populus tremuloides Michx.) recruitment and overstory stem densities were sampled in 315clones in 1991and 2006on 560km ² of the Northern Yellowstone Winter Range (NYWR). A primary objective was to observe if aspen status had improved from 1991to 2006: evidence of a wolf (Canis lupus) caused trophic cascade. Recruitment stems (height > 2m and diameter at breast height <...

article

Spring Precipitation as a Predictor for Peak Standing Crop of Mixed-Grass Prairie

L.J. Wiles, Gale Dunn, Jeff Printz, Bob Patton, more

Rangeland Ecology & Management > 2011 > 64 > 2 > 215-222

Ranchers and range managers need a decision support tool that provides a reasonably accurate prediction of forage growth potential early in the season to help users make destocking decisions. Erroneous stocking rate decisions can have dire economic and environmental consequences, particularly when forage production is low. Predictions must be based on information that is easily obtained and relevant...

article

Measuring Eastern Redcedar (Juniperus virginiana L.) Mass With the Use of Satellite Imagery

Patrick J. Starks, Brad C. Venuto, John A. Eckroat, Tom. Lucas

Rangeland Ecology & Management > 2011 > 64 > 2 > 178-186

Eastern redcedar (Juniperus virginiana L.) is an aggressively spreading native species in Oklahoma grasslands. It decreases rangeland forage production, and has been implicated in reducing stream flow and groundwater recharge. Industrial-scale plans to use redcedar as a biofuel source are being considered. Optimal placement of redcedar-based industries requires determination of redcedar availability...

Year:
2011

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64 (81)

Keywords

GRAZING MANAGEMENT (6)
CHEATGRASS (4)
CLIMATE CHANGE (4)
DROUGHT (4)
RANGELAND (4)
ADAPTIVE MANAGEMENT (3)
FIRE (3)
GRAZING (3)
HETEROGENEITY (3)
BIODIVERSITY (2)
CLIMATE (2)
DIET (2)
DISTURBANCE (2)
ECOSYSTEM MANAGEMENT (2)
EXPERT KNOWLEDGE (2)
LAND MANAGEMENT (2)
MORTALITY (2)
POPULUS TREMULOIDES (2)
PRESCRIBED FIRE (2)
PRODUCTIVITY (2)
PYRIC HERBIVORY (2)
RANGELAND CLASSIFICATION (2)
REMOTE SENSING (2)
RESTORATION (2)
SAGEBRUSH (2)
SPECIES RICHNESS (2)
VEGETATION STRUCTURE (2)
ABSOLUTE GROWTH RATE (1)
ACACIA BERLANDIERI (1)
ACACIA RIGIDULA (1)
ACTIVE SENSORS (1)
AFLP (1)
AGROPYRON CRISTATUM (1)
AKAIKE’S INFORMATION CRITERIA (1)
ALKALOIDS (1)
ALTERED PRECIPITATION REGIME (1)
ALTERNATE STABLE STATES (1)
AMMONIA (1)
ANIMAL DISTRIBUTION (1)
ANNUAL GRASS INVASION (1)
ANNUAL GROWTH-RINGS (1)
ANPP (1)
ARCHAEOLOGICAL CLEARANCE (1)
ARIZONA (1)
ARTEMISIA TRIDENTATA (1)
ATTITUDES (1)
AVOIDANCE BEHAVIOR (1)
BARE GROUND (1)
BASAL COVER (1)
BEEF CATTLE (1)
BEEF PRODUCTION (1)
BIOGEOCHEMICAL CYCLES (1)
BIOLOGICAL INVASION (1)
BIOMASS PREDICTION MODEL (1)
BIRD HABITAT (1)
BIRDSFOOT TREFOIL (1)
BITE SIZE (1)
BLUEBUNCH WHEATGRASS (1)
BODY WEIGHT GAIN (1)
BOTANICAL STRUCTURE (1)
BOUTELOUA GRACILIS (1)
BROADLEAF HERBICIDE (1)
BROMUS (1)
BROMUS TECTORUM (1)
BROOM SNAKEWEED (1)
BROWSE (1)
BROWSING (1)
BULK DENSITY (1)
BURNING (1)
C3–C4 PRODUCTION DYNAMICS (1)
CADDO (1)
CANADIAN PRAIRIES (1)
CARBON EMISSION (1)
CARBON SEQUESTRATION (1)
CARCASS (1)
CATTLE MANAGEMENT (1)
CENTAUREA MACULOSA (1)
CENTROCERCUS UROPHASIANUS (1)
CERVUS ELAPHUS (1)
CHAPARRAL (1)
CHIHUAHUAN DESERT (1)
CODING GRID (1)
COLLABORATION (1)
COMMON GARDEN (1)
COMPLEX ECOLOGICAL SYSTEMS (1)
CONDITIONING (1)
CONSERVATION GRAZING (1)
CONSERVATION RESERVE PROGRAM REVEGETATION (1)
COPRODUCTION OF KNOWLEDGE (1)
COST OPTIMIZATION (1)
COVER (1)
COVER MEASUREMENT (1)
CREOSOTEBUSH (1)
DECISION SUPPORT TOOLS (1)
DEFERRED GRAZING (1)
DEFOLIATION (1)
DEFOLIATION FREQUENCY (1)
DEFOLIATION INTENSITY (1)
DENDROCHRONOLOGY (1)
DENSITY (1)
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Rangeland Ecology & Management

Rotational Grazing Systems and Livestock Grazing Behavior in Shrub-Dominated Semi-Arid and Arid Rangelands

Long-Term Effects of Weed Control With Picloram Along a Gradient of Spotted Knapweed Invasion

Grazing Deferment Effects on Forage Diet Quality and Ewe Performance Following Summer Rangeland Fire

Field Test of Digital Photography Biomass Estimation Technique in Tallgrass Prairie

Long-Term Vegetation Trends on Grazed and Ungrazed Chihuahuan Desert Rangelands

Estimating Grass Yield on Blue Grama Range From Seasonal Rainfall and Soil Moisture Measurements

LiDAR-Based Classification of Sagebrush Community Types

Threshold Distinctions Between Equilibrium and Nonequilibrium Pastoral Systems Along a Continuous Climatic Gradient

Performance of Sheep and Goats Fed Arctostaphylos canescens With and Without Polyethylene Glycol Supplementation

Biomass Not Linked to Perennial Grass Mortality Following Severe Wildfire in the Southern High Plains

Growing-Season Disturbance in Tallgrass Prairie: Evaluating Fire and Grazing on Schizachyrium scoparium

Plant Community and Soil Environment Response to Summer Fire in the Northern Great Plains

Plant Age and Growing Season Nutritional Content Relationships of Three Artemisia tridentata Subspecies

Songbird Relationships to Shrub-Steppe Ecological Site Characteristics

Disturbance to Surface Lithic Components of Archaeological Sites by Drill Seeding

Transition From Sagebrush Steppe to Annual Grass (Bromus tectorum): Influence on Belowground Carbon and Nitrogen

Using Digital Photography to Examine Grazing in Montane Meadows

Aspen Recovery Since Wolf Reintroduction on the Northern Yellowstone Winter Range

Spring Precipitation as a Predictor for Peak Standing Crop of Mixed-Grass Prairie

Measuring Eastern Redcedar (Juniperus virginiana L.) Mass With the Use of Satellite Imagery

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