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Two grasses, Agropyron smithii and A. inerme , were planted in a seed mixture with Ceratoides lanata in 1977 on two soil disturbances. These grasses were selected to test their responses to the presence of C. lanata . Biomass of leaf, stem, crown and roots were measured for each grass alone, with other plants of the same species, and with C. lanata as nearest neighbor. Total non-structural carbohydrates were determined for all biomass samples. A. smithii produced the lowest amounts of stem and root biomass when grown in close association with another A. smithii plant. In contrast, this species produced the most shallow-root (0-20 cm) biomass when closely associated with C. lanata. A. inerme leaf biomass was lowest...
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This data set consists of data collected during 2005-2007, 2010, and 2015 at Neal Smith National Wildlife Refuge in Iowa, USA that were used in the analysis in support of the article titled "Toward improving pollinator habitat: Reconstructing prairies with high forb diversity," which has been submitted to Natural Areas Journal. We compared pollinator habitat, in terms of planted forb richness, cover, and phenology, cover of planted grasses, and persistence of exotic species 10-years post-planting of reconstructions with 58 species (extra-high), 34 species (high), 20 species (medium) and 10 species (low) planted at the same time using the same fields, methods, and overall seeding rate. Twelve replicates of three...
Seasonal dynamics of arbuscular mycorrhizal (AM) colonization of Sporobolus wrightii and AM fungal communities were assessed at four riparian sites in south-east Arizona which represented upper terrace or lower floodplain habitats and perennial or intermittent river reaches. Colonization was co-ordinated with growth/reproductive stages of plants at three sites with higher levels from February to May when plants were primarily vegetative and lower levels in September and December during seed set and onset of dormancy. Fifteen species of AM fungi were associated with S. wrightii, includingGlomus , Acaulospora, Paraglomus and Archaeospora species. Species richness ranged from 9 to 13 AM fungal species per site. Published...
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In association with plant cover data, data on litter depth, water depth, and graminoid height were collected on 16, 1-ha experimental blocks in C3 and Marsh Creek units of Seney National Wildlife Refuge, 2006-2010. Within each unit, we selected 4 pairs of blocks representing sedge-shrub habitat, with one of the pair assigned to spring burning (C3, May 2008) or summer burning (Marsh Creek, 2007 and 2008). This before-after-control-impact design provided for data collection two growing seasons before the burn (2006, 16 blocks; 2007, 15 blocks) and two-three growing seasons (2008, 2009, and 2010; 14 blocks) after burning; the unburned plot of each pair served as the control, and the burned plot of each pair the treatment....
A potentially important organizing principle in arid and semi-arid systems is the inverse-texture hypothesis which predicts that plant communities on coarse-textured soils should have higher above-ground net primary productivity (ANPP) than communities on fine-textured soils; the reverse is predicted to occur in humid regions. Our objectives were: (1) to test predictions from the inverse-texture hypothesis across a regional precipitation gradient, and (2) to evaluate changes in community composition and basal cover on coarse- and fine-textured soils across this gradient to determine how these structural parameters may affect ANPP. Sites were located along a precipitation gradient through the Central Grassland region...
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Background information. In the late 1800s through the early 1900s, nearly all of the area that is now the Crab Orchard National Wildlife Refuge (Crab Orchard NWR) was either logged for timber or cleared and converted to other uses, particularly agriculture. By the 1930s, soils in the area were depleted and severely eroded. Additional clearing and development ensued with the establishment of the Illinois Ordnance Plant during World War II. In 2014, as part of the effort to restore Crab Orchard NWR lands to benefit wildlife, the refuge undertook the Hampton native prairie restoration project to convert a 62-acre nonnative cool-season hay field into a native warm-season grassland. The primary benefit of this restoration...
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The Agassiz Beach Ridges landscape is located in the Red River watershed of northwestern Minnesota and falls and is within the larger Prairie Pothole Region (PPR). The PPR has been identified as being responsible for producing 50–80 percent of the continent’s waterfowl while accounting for only 10% of the available breeding habitat. It is estimated that less than 1% of Minnesota’s historic native prairie remains intact, with much of the remnant prairie scattered about in small clusters. Restoration of key sites within this landscape has been identified as the most important strategy to create a contiguous expanse of prairie/wetland mosaic and improve the ecological functioning of these systems. In the fall of...
Temporal variations in the relationships among plant nutrient concentrations, soil properties and arbuscular-mycorrhizal (AM) fungal dynamics were studied along a topographic and saline gradient in a temperate grassland soil. Soil and plant (Lotus tenuis, Paspalum vaginatum, Stenotaphrum secundatum) samples were collected on four seasonally based occasions. The morphology of AM root colonization had a similar pattern in the plants studied. Maximum arbuscular colonization occurred at the beginning of the growing season in late winter and was minimal in late summer, but maximal vesicular colonization occurred in summer and was minimal in winter, suggesting a preferential production of these morphological phases by...
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For thousands of years, much of the San Luis Valley basin of south-central Colorado was made up of a series of lakes, marshes, and shallow playa basins that were integral to the lives of indigenous peoples. By the mid-1900s, the basins had dried up from the diversion of water sources for irrigation and became known as the “Dry Lakes.” In 1965, BLM began a series of wildlife habitat projects to restore some of the historic wetland characteristics and processes, and 9,600 acres of the former “Dry Lakes” area became known as Blanca Wetlands. BLM designated the Blanca Wetlands Area (BWA) as an “Area of Critical Environmental Concern” (ACEC) in 1991, due to its high importance for wildlife and recreational values. Today...
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These data sets consist of data collected during 2005-2007, 2010, and 2015 at Neal Smith NWR (IA) and Fergus Falls, Litchfield, and Morris Wetland Management Districts (MN) that were used in the analysis in support of the article titled "Integrity of tallgrass prairie reconstructions ten years after planting: native plant persistence and exotic weed resistance," which has been submitted to the journal Restoration Ecology. The primary goal of this study was to understand what influence early reconstruction practices have on long-term outcomes. Twelve replicates of three planting methods (dormant-season broadcast, growing-season broadcast, and growing-season drill) and three seed mix richness levels (10, 20 or 34...
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Future climate change may significantly alter the distributions of many plant taxa. The effects of climate change may be particularly large in mountainous regions where climate can vary significantly with elevation. Understanding potential future vegetation changes in these regions requires methods that can resolve vegetation responses to climate change at fine spatial resolutions. This research was projected using three models: cgcm31, hadley, and current. We used LPJ, a dynamic global vegetation model, to assess potential future vegetation changes for a large topographically complex area of the northwest United States and southwest Canada (38.0–58.0°N latitude by 136.6–103.0°W longitude). LPJ is a process-based...
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Background information.— Noxious and invasive weeds can destroy wildlife habitat, reduce opportunities for recreational activities, decrease plant and animal diversity, and cause loss of productivity for private landowners. The Bureau of Land Management (BLM) Ely Field Office was awarded funding for the Steptoe Valley Weed Inventory, Education, and Treatment Project through the Southern Nevada Public Lands Management Act, which allows the U.S. Department of the Interior to utilize revenue from the sale of Federal land in Nevada for restoration projects. The objective of this project was to assist the Steptoe Valley Cooperative Weed Management Area in conducting a noxious weed inventory and providing treatment, education,...
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These data were compiled to investigate differentiation in physiological activity varies through time for different functional groups. These include the seasonal progress of 13 plant species representing perennial C3 shrub, C3 grass, C4 grass, and annual forb functional groups of the Colorado Plateau, USA. These data can be used to test for differences in carbon assimilation strategies (SeasonalEcophyAciData) and how photosynthetic rates related to climate (SeasonalEcophyMonthlyData). Data can be arranged at the seasonal, annual, species-, or functional group-levels to compare multi-level processes.
    map background search result map search result map Crab Orchard National Wildlife Refuge NRDAR Prairie Restoration Southern NV Public Land Management Act Steptoe Valley Weed Inventory, Education, and Treatment Blanca Wetlands Restoration Glacial Ridge Prairie and Wetland Restoration Projected future vegetation changes for the Northwest United States and Southwest Canada at a fine spatial resolution using a dynamic global vegetation model Persistence of native and exotic plants ten years after prairie reconstruction data set Litter, water depth and graminoid height data for C3 and Marsh Creek experimental blocks, Seney National Wildlife Refuge, Michigan, 2006-2010 High forb diversity prairie reconstruction at Neal Smith NWR 2005-2015 Seasonal ecophysiological measurement data from December 2015 to September 2016, southeastern Utah High forb diversity prairie reconstruction at Neal Smith NWR 2005-2015 Seasonal ecophysiological measurement data from December 2015 to September 2016, southeastern Utah Litter, water depth and graminoid height data for C3 and Marsh Creek experimental blocks, Seney National Wildlife Refuge, Michigan, 2006-2010 Persistence of native and exotic plants ten years after prairie reconstruction data set Crab Orchard National Wildlife Refuge NRDAR Prairie Restoration Blanca Wetlands Restoration Southern NV Public Land Management Act Steptoe Valley Weed Inventory, Education, and Treatment Glacial Ridge Prairie and Wetland Restoration Projected future vegetation changes for the Northwest United States and Southwest Canada at a fine spatial resolution using a dynamic global vegetation model