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Showing 1 to 14 of 14 for “"Native grasslands"”.
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Granivory and Granivores in Native Grasslands and Agropyron Cristatum Stands in the Northern Great Plains
… seed preferences, and ant communities in paired native grasslands and A. cristatum stands. I examined temporal variation in vegetation factors that influence granivory rates. Finally, I determined the relationship between seed size and vertebrate granivore preferences in herbaceous and woody …
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Evaluation of the Reference Unit Method for Herbaceous Biomass Estimation in Native Grasslands of Southwestern South Dakota
… prairie dog colonies of the Buffalo Gap National Grasslands in southwestern South Dakota. These prairie dog colonies and the surrounding areas provided a range of vegetation height and plant communities to use for testing the method. Research revealed that reference units provided accurate and …
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Classifying and Mapping Native Grasslands of South Dakota's Northern Prairie Coteau and Characterizing Habitat for Dakota Skipper Conservation
<p>Native tallgrass prairie is becoming increasingly rare due to conversion and degradation, putting pressure on endemic prairie species such as the federally threatened Dakota skipper butterfly (Hesperia dacotae). To develop a conservation plan for the butterfly in South Dakota, accurate …
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Assessing The Biophysical Naturalness Of Grassland In Eastern North Dakota With Hyperspectral Imagery
<p>Over the past two decades, non-native species within grassland communities have quickly developed due to human migration and commerce. Invasive species like Smooth Brome grass (Bromus inermis) and Kentucky Blue Grass (Poa pratensis), seriously threaten conservation of native grasslands. This …
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Floristics, Conservation, and Restoration of Virginia's Piedmont Grasslands
The native grasslands of Southeastern North America contain higher native plant diver- sity than the prairies of the Great Plains, but they have lost 90-99% of their historic range through disruption of their natural disturbance regimes and conversion to agricultural lands. To inform the …
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Directions for best management of Kangaroo grass (Themeda triandra Forssk.) re-establishment in southeastern Australian native grassland remnants
Western basalt plains native grasslands, which extend from the west of Melbourne in Victoria to the South Australian border, are recognised as one of the most threatened ecosystems in Victoria (DC&E 1992). Ecosystem functions and their ability to support life are disappearing along with the remnant …
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Modeling Detection and Density Using Distance Sampling for Three Priority Grassland Bird Species in Texas - Northern Bobwhite (Colinus virginianus), Eastern Meadowlark (Sturnella magna), and Painted Bunting (Passerina ciris)
… have experienced declines due to the loss of native grasslands. These species are the Northern Bobwhite (Colinus virginianus), Eastern Meadowlark (Sturnella magna), and Painted Bunting (Passerina ciris). Due to this, accurate density and abundance estimates are critical for management of these …
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Biodiversity impacts of Chilean needle grass Nassella neesiana on Australia’s indigenous grasslands
… threat to biodiversity in the endangered natural grasslands of south-eastern Australia. Research was undertaken in Canberra and Melbourne grasslands to examine mechanisms by which N. neesiana invades native grasslands, the impacts of invasion on vascular plant and invertebrate biodiversity and …
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Grazing and Range Management - Alberta
… ensure range health, or optimal conditions for native vegetation and species diversity. Several differences in range health and vegetation species have been observed between cattle grazed and non-grazed land. For this case study, these two types of land management will be compared, and …
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Status and Distribution of Franklin's and Richardson's Ground Squirrels in Eastern South Dakota
… has been altered substantially, largely due to native grasslands being converted into cropland. Over 99% of tall grass prairie and an estimated 70 to 90% of native mixed grass prairie have been lost. In addition, expiring conservation reserve program contracts and decreased government incentives …
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Nongame Vertebrate Survey of Sand Lake National Wildlife Refuge, Brown County, South Dakota
… species richness with 3 5, followed by tame grasslands (18), native grasslands (12), and alfalfa (7). Nongame wetland birds were also surveyed in temporarily and seasonally flooded forested (PFOC) and emergent (PEMF) wetland habitats using a semi-circular plot method. Playback recordings were …
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Pronghorn Use of Agriculture Land in Northwestern South Dakota
… June 1989 to July 1990 on alfalfa, small grains, native grasslands, and native sagebrush-grasslands to better understand influences of nutrient availability on habitat selection of pronghorns. Cropland, Conservation Reserve Program lands (CRP), and native prairie made up 17%, 4%, and 79% of …
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Root Dynamics, Management Effects and Carbon Sequestration on Invaded and Native Semi-Arid Grasslands
… as much as 83% of productivity in semiarid grasslands occurs belowground. Finally, the belowground dynamics of invasive species that change the vegetation of an area can be expected to alter the local carbon (C) cycle in ways. I investigated the optimum minirhizotron sample interval for …