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- Grazing (2)
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Articles 1 - 9 of 9
Full-Text Articles in Life Sciences
Climate Change Impacts On Freshwater Wetland Hydrology And Vegetation Cover Cycling Along A Regional Aridity Gradient, Philip A. Fay, Glenn R. Guntenspergen, Jennifer H. Olker, W. Carter Johnson
Climate Change Impacts On Freshwater Wetland Hydrology And Vegetation Cover Cycling Along A Regional Aridity Gradient, Philip A. Fay, Glenn R. Guntenspergen, Jennifer H. Olker, W. Carter Johnson
Natural Resource Management Faculty Publications
Global mean temperature may increase up to 6°C by the end of this century and together with precipitation change may steepen regional aridity gradients. The hydrology, productivity, and ecosystem services from freshwater wetlands depend on their future water balance. We simulated the hydrology and vegetation dynamics of wetland complexes in the North American Prairie Pothole Region with the WETLANDSCAPE model. Simulations for 63 precipitation × temperature combinations spanning 6°C warming and −20% to +20% annual precipitation change at 19 locations along a mid-continental aridity gradient showed that aridity explained up to 99% of the variation in wetland stage and hydroperiod …
Rapid Surface Water Volume Estimations In Beaver Ponds, Daniel J. Karran, Cherie J. Westbrook, Joseph M. Wheaton, Carol A. Johnston, Angela Bedard-Haughn
Rapid Surface Water Volume Estimations In Beaver Ponds, Daniel J. Karran, Cherie J. Westbrook, Joseph M. Wheaton, Carol A. Johnston, Angela Bedard-Haughn
Natural Resource Management Faculty Publications
Beaver ponds are surface water features that are transient through space and time. Such qualities complicate the inclusion of beaver ponds in local and regional water balances, and in hydrological models, as reliable estimates of surface water storage are difficult to acquire without time and labour intensive topographic surveys. A simpler approach to overcome this challenge is needed, given the abundance of the beaver ponds in North America, Eurasia and southern South America. We investigated whether simple morphometric characteristics derived from readily available aerial imagery or quickly measured field attributes of beaver ponds can be used to approximate surface water …
Greater Bud Outgrowth Of Bromus Inermis Than Pascopyrum Smithii Under Multiple Environmental Conditions, Jacqueline P. Ott, Jack L. Butler, Yuping Rong, Lan Xu
Greater Bud Outgrowth Of Bromus Inermis Than Pascopyrum Smithii Under Multiple Environmental Conditions, Jacqueline P. Ott, Jack L. Butler, Yuping Rong, Lan Xu
Natural Resource Management Faculty Publications
Tiller recruitment of perennial grasses in mixed-grass prairie primarily occurs from belowground buds. Environmental conditions, such as temperature, soil moisture and grazing can affect bud outgrowth of both invasive and native perennial grasses. Differential bud outgrowth responses of native and invasive species to climate change and grazing could alter competitive interactions that have implications for future land management. The aims of this work were to (i) compare how spring temperature altered bud outgrowth of native Pascopyrum smithii (Rydb.) Á. Löve (western wheatgrass) and introduced Bromus inermis Leyss.(smooth brome), (ii) compare how watering frequency altered bud outgrowth of these two species …
Invasive Grasses Consistently Create Similar Plant-Soil Feedback Types In Soils Collected From Geographically Distant Locations, Lora B. Perkins, Gary Hatfield, Erin K. Espeland
Invasive Grasses Consistently Create Similar Plant-Soil Feedback Types In Soils Collected From Geographically Distant Locations, Lora B. Perkins, Gary Hatfield, Erin K. Espeland
Natural Resource Management Faculty Publications
Aims Plants of similar life forms and closely related species have been observed to create similar types of plant–soil feedbacks (PSFs). However, investigations of the consistency of PSFs within species have not yielded clear results. For example, it has been reported that species create different types of PSFs in their native and introduced ranges. The aim of this project is to examine if four species create similar PSF types from soils collected from widely distributed areas within their introduced range. The soil for this project was collected from three areas in western North America. With this design, we aim to …
Use Of Ecological Sites In Managing Wildlife And Livestock: An Example With Prairie Dogs, John R. Hendrickson, Patricia S. Johnson, Mark A. Liebig, Kevin K. Sedivec, Gary A. Halvorson
Use Of Ecological Sites In Managing Wildlife And Livestock: An Example With Prairie Dogs, John R. Hendrickson, Patricia S. Johnson, Mark A. Liebig, Kevin K. Sedivec, Gary A. Halvorson
Natural Resource Management Faculty Publications
On the Ground
- The perception of prairie dogs among Native Americans living on the Standing Rock Sioux Reservation is mixed. Some Native Americans focus on the loss of forage productivity, whereas others are interested in the cultural and ecological aspects of prairie dogs.
- The use of ecological sites may provide a mechanism for developing a management framework that would consider both livestock and prairie dogs.
- The three ecological sites we surveyed had large differences in off-colony standing crop, but in 2 of the 3 years we surveyed, there were no differences between standing crop on-colony.
- This suggests that management of …
Effects Of Short-Term Cattle Exclusion On Plant Community Composition: Prairie Dog And Ecological Site Influences, Aaron Field, Kevin Sedivec, John Hendrickson, Patricia Johnson, Benjamin Geaumont, Lan Xu, Roger N. Gates, Ryan Limb
Effects Of Short-Term Cattle Exclusion On Plant Community Composition: Prairie Dog And Ecological Site Influences, Aaron Field, Kevin Sedivec, John Hendrickson, Patricia Johnson, Benjamin Geaumont, Lan Xu, Roger N. Gates, Ryan Limb
Natural Resource Management Faculty Publications
On the Ground
- Maintaining cattle and prairie dogs on rangelands is important ecologically, economically, and culturally. However, competition between these species, both actual and perceived, has led to conflict.
- We explored the effects of short-term (2-year) cattle exclusion on plant communities both on and off prairie dog towns and among three common ecological sites.
- Plant communities were different between on-town and off-town plots and among ecological sites but were similar between cattle-excluded and nonexcluded plots.
- Plant community composition did not differ between rangeland targeted for moderate forage utilization and that in which cattle had been excluded for 2 years.
Effect Of Grazing Prairie Dog—Colonized Rangeland On Cattle Nutrition And Performance: A Progress Report, Kenneth C. Olson, Christopher Schauer, Chanda Engel, Janna J. Kincheloe, Jameson R. Brennan, Ben L. Hauptman
Effect Of Grazing Prairie Dog—Colonized Rangeland On Cattle Nutrition And Performance: A Progress Report, Kenneth C. Olson, Christopher Schauer, Chanda Engel, Janna J. Kincheloe, Jameson R. Brennan, Ben L. Hauptman
Natural Resource Management Faculty Publications
On the Ground
- One objective of the ongoing Renewal on Standing Rock Reservation project is to evaluate the response of grazing steers to the level of prairie dog colonization on Northern Mixed Grass Prairie.
- We fenced four pastures to create an increasing gradient of a proportion of the pasture area colonized by prairie dogs. Pastures are stocked with yearling steers during each growing season.
- Comparing steer performance, Global Positioning System (GPS) locations of grazing, diet samples, and ingestive behavior at each proportion of the prairie dog colony per pasture allows prediction of the optimal proportion of colonization, which enables selection …
Reproductive Biology Of American Licorice (Glycyrrhiza Lepidota Pursh) In Western South Dakota With New Seed Insect Associations, Arvid Boe
Native Plant Focused Publications
American licorice (Glycyrrhiza lepidota Pursh) is a long-lived rhizomatous native legume that is common on moist prairies and meadows in the northern Great Plains and further west. This species is of interest for remediation and conservation because it is a legume that is fairly well adapted to moist saline soils. It is browsed by deer and pronghorn and its seeds are consumed by birds, rodents, and insects. Acanthoscelides aureolus (Horn) (Coleoptera: Chrysomelidae)] and Bruchophagus grisselli McDaniel & Boe (Hymenoptera: Eurytomidae) can decimate seed production in natural populations. Our objectives were to determine seed yield components (i.e., seeds per pod and …
Winter Habitat Quality But Not Long- Distance Dispersal Influences Apparent Reproductive Success In A Migratory Bird, Clark S. Rushing, Peter P. Marra, Michele R. Dudash
Winter Habitat Quality But Not Long- Distance Dispersal Influences Apparent Reproductive Success In A Migratory Bird, Clark S. Rushing, Peter P. Marra, Michele R. Dudash
Natural Resource Management Faculty Publications
Long- distance breeding and natal dispersal play central roles in many ecological and evolutionary processes, including gene flow, population dynamics, range expansion, and individual responses to fluctuating biotic and abiotic conditions. However, the relative contribution of long- distance dispersal to these processes depends on the ability of dispersing individuals to successfully reproduce in their new environment. Unfortunately, due to the difficulties associated with tracking dispersal in the field, relatively little is known about its reproductive consequences. Furthermore, because reproductive success is influenced by a variety of processes, disentangling the influence of each of these processes is critical to understanding the …