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Showing 1 to 20 of 40 for “"Vernal"”.
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Physical and chemical correlates of Sacramento County vernal pool crustaceans
<p>Vernal pools are temporary aquatic habitats that can be home to dozens of 4 invertebrate species. Unfortunately, over 90 percent of California vernal pool habitat has been destroyed. To better understand the remaining habitat, this study focused on the species community structure of the pools, …
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Fairy shrimp (Anostraca) in the vernal pools of Eastern Washington
<p>Vernal pools are ephemeral wetlands that retain water annually from winter and spring precipitation and snowmelt but are dry the rest of the year. Though important habitats and sources of freshwater biodiversity, they are little accounted for in wetland conservation and restoration practices. …
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The Pollination Ecology of Four Species of Local Vernal Herbaceous Angiosperms
The pollination ecology of four populations of vernal herbaceous angiosperms representing four locally common species of plants in the Central New York State area were studied. Three study sites were selected and research was conducted in the field by personal observation and accepted experimental …
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Vernal Pool Mapping and Geomorphology in the Appalachian Mountains of Pennsylvania
Vernal pools are small seasonally-ponded wetlands that provide crucial habitat for amphibian reproduction and support trophic levels beyond their boundaries. The Ridge and Valley physiographic province in Pennsylvania is known to have vernal pools, but a regional inventory and geomorphology …
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The Effects of Fire on the Vernal Herbs of an Eastern Mesic Forest
<p><sup></sup>The effects of fire on vernal herbs of the mesic forests of eastern North America are poorly understood. I studied the influence of prescribed fire on species richness, abundance of rare and common species, and density of exotics in the vernal herbaceous layer. To determine these …
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Distributional Ecology of Vegetation in the Vernal Pools of the Santa Rosa Plateau, California
<p>Interpool distribution studies of 10 vernal pools on the Santa Rosa Plateau found area to be the best single predictor of species richness in each type of regression model evaluated. Area predicted most accurately in a mixed linear-curvilinear regression model (y = a + b log x). Area appeared to …
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The Vernal And Summer Zooplankton In Surface Waters From A Small Cove In Stockton Reservoir
Zooplankton collections were made at three sites in the Little Sac arm of Stockton Reservoir, Missouri, from May 11, 1975 until July 19, 1975 and from ten sites along the entire Little Sac arm on June 10, 1976. A total of 12 species of zooplankton were collected. Diurnal, seasonal, and among site …
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Spatial and Temporal variability of macroinvertyebrate communities in vernal pools on the Coastal Plain of Virginia
<p>Vernal pools are often defined as seasonal pools that typically are inundated beginning in the winter and then drying out completely in summer. Though evidence of spatial and temporal variability in the macroinvertebrate communities of vernal pools has been found in previous studies, it has not …
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Analisi proteomica quantitativa del fluido lacrimale per la diagnosi e la terapia farmacologica della Vernal Keratoconjunctivitis
La Vernal Keratoconjunctivitis (VKC) è una patologia oculare allergica cronica che determina nei soggetti che ne soffrono un quadro infiammatorio severo. Lo scopo del presente lavoro è stato quello di analizzare il profilo proteomico qualitativo e quantitativo del fluido lacrimale appartenente a …
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A comparative study of the vascular plants of three vernal pools in the San Joaquin Valley, California
… is known about the general nature and flora of vernal pools. Nevertheless, there is very limited information or actual documentation in the scientific literature. Vernal pools need to be studied more extensively. and they still offer unlimited opportunities for such research (Holland and Griggs …
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The Distribution of ORCUTTIA CALIFORNICA (Poaceae) in the Vernal Pools of the Santa Rosa Plateau, Riverside County, California
… California, from April to September, 1976 in 11 vernal pools located on the Santa Rosa Plateau in Riverside County. To help determine why Orcutt grass occurs in only 6 of the 11 pools and more specifically why it only occurs in patches within a given pool, biweekly measurements of frequency, …
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Depth Profiles and Soil Textures of the Vernal Pools of the Santa Rosa Plateau Preserve, Riverside County, California
… and topographic characteristics of the 13 vernal pools on the Santa Rosa Plateau Preserve, thus documenting the role soil texture plays in vernal pool formation.</p> <p>Several field and laboratory procedures were used to demonstrate that there is a higher percentage of clay present within …
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Mapping and Kinematic Structural Analysis of the Deep Creek Fault Zone, South Flank of the Uinta Mountains, Near Vernal, Utah
… flank of the Uinta Mountains, located north of Vernal, Utah, has been mapped at the 7.5' scale within two quadrangles: the Dry Fork and Steinaker Reservoir Quadrangles. Ambiguities dealing with stratigraphy, structural geology, and geohazards are currently being addressed as a result of this and …
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Population Size and Movements of Spotted Salamanders at South Holston Dam, Sullivan County, Tennessee.
… just east of the city of Bristol. It is a vernal pond at the Osceola Island Recreation Area one mile below the South Holston Dam on Holston View Dam road. A drift fence was established completely around the perimeter of the vernal pond to capture Spotted Salamanders entering and exiting the …
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Assessment of the ecological integrity of two wetland sites within Eastern Michigan University’s Fish Lake Environmental Education Center (FLEEC)
… Environmental Education Center, a bog and one vernal pool, was assessed. Plant species richness was used to conduct Floristic Quality Assessments (FQA) using the coefficient of conservatism and wetland indicator status for each species. The Michigan Rapid Assessment Method (MiRAM) was conducted …
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Understanding the mechanism of salt tolerance in alfalfa (Medicago sativa L.)
… of salt tolerant ‘Halo’ and salt intolerant ‘Vernal’ alfalfa cultivars. The specific objectives of the study were: 1) to determine seed germination and post-germination performance of alfalfa cultivars to different salinity stresses, 2) to compare the distribution and accumulation of organic …
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Evolutionary potential of a dispersal-restricted species in response to climate change
… species restricted to ephemeral wetlands called vernal pools in California to adapt to the projected patterns of climate change. Across <em>L. fremontii</em> distribution there is a latitudinal gradient in precipitation which, combined with reduced gene flow rates, might be driving adaptive …
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Relationship of plankton and marine snow to hydrography and currents on the south portion of Georges Bank during June 1997
… by the clockwise flow, which intensifies with vernal warming. The extent to which plankton are transported off the bank to the southwest or transported northward and retained on the bank remains poorly understood. This thesis examined the relationship between plankton and physical properties in …
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Relationship of plankton and marine snow to hydrography and currents on the southwest portion of Georges Bank during June 1997
… by the clockwise flow, which intensifies with vernal warming. The extent to which plankton are transported off the bank to the southwest or transported northward and retained on the bank remains poorly understood. This thesis examined the relationship between plankton and physical properties in …
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Factors Affecting Distribution and Abundance of Aquatic Macroinvertebrates in Autumnal Wetlands in Mammoth Cave National Park, Kentucky, USA
… taxa, and ecological differences between vernal and autumnal wetlands, makes formulating a broad ecological theory difficult.
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