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Now showing items 121-130 of 3109
Soil Salinity and Sodicity Impacts on Soil Shrinkage, Water Movement and Retention
(North Dakota State University, 2015)
Saline, sodic, and saline-sodic ground waters are problematic throughout the Northern Great Plains and Red River Valley. High sodium adsorption ratio (SAR) and low electrical conductivity (EC) of soil solution and irrigation ...
The Effects of Herbivory and Vegetation Competition on Seedling Survival and Growth in the Middle Sheyenne River Watershed, North Dakota
(North Dakota State University, 2017)
There is a concern about the lack of regeneration of riparian hardwood forest communities in the Middle Sheyenne River Watershed of northeastern North Dakota. Natural resource managers and landowners are unsure if herbivory ...
Effect of Larval Diet on Endogenous Carbon Reproductive Resources of Fifth Instars and Adult Females of the Moth, Heliothis Virescens
(North Dakota State University, 2013)
Mostly adult Lepidoptera feed on plant nectar. That is, adults can only contribute to
carbon, and not nitrogen, acquisition. The moth Heliothis virescens were used to explore the
hypothesis that larval nutrition influences ...
Biological Capabilities of Selected Ecological Sites in the Western Dakotas
(North Dakota State University, 2014)
The study was conducted on the Dakota Prairie National Grasslands (DPG) within the Little Missouri National Grassland (LMNG) of North Dakota and Grand River National Grassland (GRNG) of South Dakota during the summer and ...
The Effects of Salinity on Herbivorous Pests of Corn and Soybean
(North Dakota State University, 2016)
Many environmental factors, including soil characteristics, are critically important for plants, herbivorous arthropods, and their interactions. Despite increasing evidence that soil salinity can drastically impact plants, ...
Influences of Cattle Grazing and Black-Tailed Prairie Dog Activity on Northern Mixed Prairie Plants
(North Dakota State University, 2017)
Video summarizing a Ph.D. dissertation for a non-specialist audience.
Corn Hybrid Response to Skip-Row Planting Configurations and Plant Population in Western North Dakota
(North Dakota State University, 2011)
Management practices are needed for stable com (Zea mays L.) production in drought prone regions of western North Dakota. Analysis of weather data suggests areas like those near Mandan and Hettinger suffer severe drought ...
Behaviors Mediate Aphid Interactions with Natural Enemies and the Environment
(North Dakota State University, 2016)
Behavior is a crucial component of ecology that mediates how animals interact with one another and with the environment. Behaviors can allow animals to avoid the harmful effects of things like competition, predation, and ...
Effects of Temperature on Pea Aphids, their Host Plants, and their Parasitoids
(North Dakota State University, 2018)
Temperature has the potential to alter every aspect of an organism’s biology. This is especially true when we focus on small ectotherms such as insects. Understanding the effects of temperature on insects is particularly ...
Mid-Wisconsinan Climate Reconstruction Based on Fossil Beetles from Six Mile Creek, Ithaca, New York
(North Dakota State University, 2018)
The history of the Mid-Wisconsinan sub-stage in northeastern North America is one of large climatic oscillations. Fossil beetles were extracted from two horizons at the Six Mile Creek site, New York. A total of 738 individuals ...