A5018712636- Ruminant Nutrition and Digestive Physiology
- Rangeland and Wildlife Management
- Biological Control of Invasive Species
- Soil Carbon and Nitrogen Dynamics
- Plant Water Relations and Carbon Dynamics
- Effects of Environmental Stressors on Livestock
- Ecology and Vegetation Dynamics Studies
- Rangeland Management and Livestock Ecology
- Genetic and phenotypic traits in livestock
- Constructed Wetlands for Wastewater Treatment
- Coastal wetland ecosystem dynamics
- Soil and Water Nutrient Dynamics
- Aquatic Ecosystems and Phytoplankton Dynamics
- Plant Parasitism and Resistance
- Forest Insect Ecology and Management
- Plant and animal studies
- Data Management and Algorithms
- Agronomic Practices and Intercropping Systems
- Freshwater macroinvertebrate diversity and ecology
- Insect and Arachnid Ecology and Behavior
- Agricultural pest management studies
- Soil and Unsaturated Flow
- Botany, Ecology, and Taxonomy Studies
- Essential Oils and Antimicrobial Activity
- Agriculture Sustainability and Environmental Impact
Colorado State University
2011-2019
Agricultural Research Service
2013-2016
Agricultural Research Service - Plains Area
2014-2016
United States Department of Agriculture
2014-2016
Northern Great Plains Research Laboratory
2016
Kent State University
2008-2011
Grazing intensity elicits changes in the composition of plant functional groups both shortgrass steppe (SGS) and northern mixed-grass prairie (NMP) North America. How these grazing intensity-induced control aboveground net primary production (ANPP) responses to precipitation remains a central open question, especially light predicted climate changes. Here, we evaluated effects four levels (none, light, moderate, heavy) long-term (>30 yr) SGS NMP on: (1) ANPP; (2) precipitation-use efficiency...
In the last 50 yr, role of vision in insect interactions with host plants has received relatively little attention. This lack research is associated a number assumptions about chemical cues being ultimate sensory determinants finding. article presents arguments and detailed evidence to refute these assumptions. Insects from essentially all phytophagous orders use for locating plants, some recent examples have shown that can be even more important than olfaction. Moreover, insects ability...
Core Ideas Suggested soil testing depths in the northern Great Plains are 0–15 or 0–20 cm. Soil acidification is often most pronounced near‐surface depths. pH change was evaluated two long‐term dryland cropping studies. at 0–7.6 cm notably diluted both 0–15.2 and 0–30.5 We suggest sampling soils <8 for Plains. In (NGP) of North America, surface 0 to 15 20 suggested characteristics such as pH. However, near surface. Thus, deeper can potentially dilute (increase) measurements therefore...
Abstract Because many invasive plants are anticipated to benefit from climate change, the need for effective management strategies will become more pressing in future. Biological control of by insects has been an strategy instances, but change may substantially alter such systems. Maximizing biological efficacy with require predicting responses plant question, its agents, and especially their corresponding interactions. However, because wide variety species-specific insect increased...
Long-term research is critical to understanding the sustainability of agroecosystems. This especially true for rangelands in an era extreme weather, climate change, and land use change. Since its inception 1912, USDA Agricultural Research Service, Northern Great Plains Laboratory (NGPRL) at Mandan, North Dakota, has focused on ecology, management, native rangeland. A century ago, Johnson Thatcher Sarvis a small group scientists NGPRL set out answer very practical question: how many acres...
Long-term use of nitrogen (N) fertilizers can lead to fertility-lowering soil chemical changes. To examine this in geologically young soils the northern Great Plains North America, we present near-surface (0–7.6 cm) chemistry data from 16 years two crop rotations: continuous (CC; spring wheat [Triticum aestivum L.]—winter [T. aestivum]—sunflower [Helianthus annuus L.]) and crop-fallow (C-F; wheat—fallow) that underwent factorial tillage (none, minimum, conventional) N rate (low, medium,...
Sanderson, M. A., Liebig, Hendrickson, J. R., Kronberg, S. L., Toledo, D., Derner, D. and Reeves, L. 2015. Long-term agroecosystem research on northern Great Plains mixed-grass prairie near Mandan, North Dakota. Can. Plant Sci. 95: 1101–1116. In 1915, a stocking rate experiment was started 101 ha of native at the Northern Research Laboratory (NGPRL) ND (100.9132N, 46.7710W). Here, we document origin, evolution, scientific outcomes from this long-term experiment. Four pastures 12.1, 20.2,...