Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 39 for “"grazing management"”.
-
Grazing Management and Plant Community Composition on Bodmin Moor
… of the dynamic response of upland vegetation to grazing, to allow evaluation of the suitability of Countryside Stewardship (CS) management for the rehabilitation of dwarf-shrub cover in the upland landscape of Bodmin Moor. Initial chapters review the ecological character of Bodmin Moor, grazing …
-
Post-Wildfire Vegetation Response on Diverse Rangelands in Northeast California: Does Livestock Grazing Management Matter?
… are affecting federal lands used for livestock grazing across the western United States. A recommended approach to post-wildfire grazing policy is to rest fire-affected areas from grazing for two growing seasons following a burn; however, this guideline does not consider biophysical factors that …
-
Hillslope and watershed scale hydrological processes and grazing management in a Dartmoor catchment, Southwest England
… on the deterioration of heather moorland due to management in the UK. A study was therefore conducted on the impacts of moorland management on the soils and hydrology of a catchment on Dartmoor. Soil moisture was measured gridwise using TDR on 19 occasions. At 23 sites within this grid, physical …
-
The effect of altering autumn grazing management on sward structural characteristics, morphology and nutritive value
Altering grazing management practices to increase the amount of herbage available on farm can help extend the grazing season, improve herbage utilization and, in turn, improve the sustainability and efficiency of pasture based dairy systems. Extended grazing happens at two pivotal time points - …
-
Grazing management strategies of diverse pastures on irrigated dairy farm systems : A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
… to improve DM production and quality are grazing management and the choice of forage species mixture. While grazing management rules are well developed, particularly timing and intensity, for perennial ryegrass-white clover pastures, the rules are less clear for diverse pasture mixtures …
-
Managing herbivory over space and time: consequences for vegetation and cattle responses in African rangelands
… Previous research on forms of rotational grazing management are criticized for being limited to small-scale experimental trials that make untested assumptions about the effect of grazing density on animal behaviour and neglect measurements of landscape-scale pattern and process. Despite …
-
Effect of Grazing Pressure on Cattle Grazing Cool Season Annual Forages
… understanding of specific plants selected by grazing ruminants remains elusive. Many long- and short-term factors impact cattle grazing behavior. Ultimately, grazing behavior can affect forage available for grazing, nutrient density of forage, dry matter intake, and animal performance. A …
-
Use and Survival of Greater Sage-Grouse in Meadows Managed for Non-Native Ungulate Grazing in Nevada
… With high densities of non-native ungulates grazing these relatively small areas during a large time span, severe degradation to these habitats may occur. This type of high-intensity grazing of late brood habitat may negatively affect sage-grouse populations, although moderate grazing may …
-
Plant community assembly and biodiversity: a spatio-temporal perspective
… communities was mainly determined by the local management history and landscape history. Long-distance dispersal by wind and animals no longer appears to be contributing to the colonization of the remaining fragments of habitat within the increasingly fragmented modern landscape, and long-term …
-
Plant Community Responses to Long-Term Seasonal Bison Grazing in the Dry Mixed Grassland of Saskatchewan
… how plant communities respond to seasonal bison grazing. This study investigated plant community responses to long-term dormant and growing season bison grazing as well as an ungrazed control. The study took place in the dry mixed grass ecoregion of Saskatchewan, Canada and analysed species …
-
Assessing Rodent Species Counts and Diversity in the Not-Grazed Montana De Oro State Park and the Rotationally Grazed Pecho Ranch
… data examining the influence of rotational grazing on rodent responses are limited. This study investigated how rotational livestock grazing practices influence small mammal rodent abundances and species diversity. We looked for evidence of variation in the occurrence and/or numbers of …
-
Estimating forage yields with simple methods
… of herbage yield is an important aim for the management of pastures and animals in systems, concurrently. Four shortcut methods of estimating pasture yield and one method of estimating botanical composition were investigated. The four methods for estimating yields: Visual, Comparative, Yield …
-
Management and Livestock Performance of Alfalfa-Tall Fescue Mixed Stands
… of this research was to develop recommended management practices for alfalfa-tall fescue mixtures and compare livestock performance, forage quality, and productivity of this mixture to N-fertilized endophyte-free tall fescue. Forty-eight Angus or Angus crossbred steers were rotationally …
-
Evaluation of the Persistence of Grazing Alfalfa Varieties
<p>The use of alfalfa (Medicago scitiva L.) for grazing is becoming more common. Alfalfa is the most widely planted legume, and is one of the most nutritional forage crops available. It is proposed that alfalfa was cultivated 4000 to 5000 years ago and produces the most protein per acre of any …
-
Management of summer grazed alfalfa
… regrowth, and quality as affected by summer grazing management and K fertilization (560 kg K/ha) was investigated with sheep. Sheep grazed alfalfa for 2-, 4-, or 6-weeks following a 2 July hay cut when regrowth was 450 kg/ha dry matter; beginning in early bud for 10 days (delayed); at early …
-
Grazing and Climate Effects on High Elevation Meadow Resources
… to understand how intensity and timing of grazing affect the temporal availability of mesic commodities utilized by species like sage-grouse. This dissertation quantifies changes in the timing of availability of mesic sage-grouse resources across grazing and climatic gradients in …
-
Impact of Large Herbivore Use in Meadows on Lentic Function, Wetland Extent and Vegetation Hydric Status
… (wetness). We examined wild horse and livestock grazing variables of timing, duration, and intensity of livestock grazing, based on the focus provided by the Grazing Response Index (GRI) to consider opportunities for plant growth. Trail cameras were used to determine the relative amount of …
-
Modelling steroidal hormone transport and evaluating best management practices in New Zealand dairy farming systems
… scale, including the evaluation of best management practices (BMPs). The novelty of this research lies in the dual-scale modelling of estrogen transport through both soil and surface runoff pathways and the spatially explicit, quantitative assessment of existing best management practices …
-
Impact of lifestock on vegetation and soil nutrients around water points in Highland Savanna rangelands, Namibia
… in dry lands Namibia. The impact of livestock grazing on the vegetation and soil status was studied along a grazing gradient from watering points in the Neudamm high land savannah area, in both large and small livestock management system during wet season. Eight artificial points were selected …
Page 1 of 2