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University Of Mississippi Field Station
The University of Mississippi Field Station (UMFS) is a off-campus research and education complex located in Lafayette County, Mississippi about northeast of downtown Oxford and operated by the University of Mississippi. History In July 1947, the area that is now the UMFS opened as Ole Miss Fisheries, Inc., a fish farm that later became Minnows Incorporated and operated by the Herbert Kohn Corporation. The fish farm comprised of bottomland along the Bay Springs Branch of Puskus Creek that was purchased from the Hickey family. The original ponds were irregularly arranged, filled from springs through pipes in the levees, and emptied via standpipes in the corner of each pond. After the original ponds, newer ponds had concrete outlet structures for drainage, and most current ponds have PVC standpipes. At its peak, the fish farm produced three million to four million fish per year. Eighty percent of these fish were golden shiners, and the rest were goldfish. After the construction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lafayette County, Mississippi
Lafayette County is a county in the U.S. state of Mississippi. At the 2010 census, the population was 47,351. Its county seat is Oxford. The local pronunciation of the name is "la-FAY-et." The county's name honors Marquis de Lafayette, a French military hero and American general who fought during the American Revolutionary War. The Oxford, MS Micropolitan Statistical Area includes all of Lafayette County. The county is policed by the Lafayette County Sheriff's Department. Lafayette County is often regarded as the inspiration for Yoknapatawpha County, the fictional setting of many of William Faulkner's works. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (7.0%) is water. Major highways * U.S. Route 278 * Mississippi Highway 6 * Mississippi Highway 7 * Mississippi Highway 9W * Mississippi Highway 30 * Mississippi Highway 315 * Mississippi Highway 331 * Mississippi Highway 334 Adjacent counties * Marshall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peace Corps
The Peace Corps is an independent agency and program of the United States government that trains and deploys volunteers to provide international development assistance. It was established in March 1961 by an executive order of President John F. Kennedy Executive Order 10924 and authorized by Congress the following September by the Peace Corps Act. Kennedy first publicly proposed the Peace Corps during his 1960 presidential campaign as a means to improve America's global image and leadership in the Cold War; he cited the Soviet Union's deployment of skilled citizens "abroad in the service of world communism" and argued the U.S. must do the same to advance values such as democracy and liberty. The Peace Corps was formally established within three months of Kennedy's presidency, garnering both bipartisan congressional support and popular support, particularly among recent university graduates. The official goal of the Peace Corps is to assist developing countries by providing skil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Beetle
A water beetle is a generalized name for any beetle that is adapted to living in water at any point in its life cycle. Most water beetles can only live in fresh water, with a few Marine (ocean), marine species that live in the intertidal zone or littoral zone. There are approximately 2000 species of true water beetles native to lands throughout the world. Many water beetles carry an air bubble, called the elytra cavity, underneath their abdomens, which provides an air supply, and prevents water from getting into the Spiracle (arthropods), spiracles. Others have the surface of their exoskeleton modified to form a Gill#Plastrons, plastron, or "physical gill", which permits direct gas exchange with the water. Some families of water beetles have fringed hind legs adapted for swimming, but most do not. Most families of water beetles have larvae that are also aquatic; many have aquatic larvae and terrestrial adults. Diet Water beetles can be either herbivores, predators, or scavengers. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vascular Plant
Vascular plants (), also called tracheophytes () or collectively Tracheophyta (), form a large group of land plants ( accepted known species) that have lignified tissues (the xylem) for conducting water and minerals throughout the plant. They also have a specialized non-lignified tissue (the phloem) to conduct products of photosynthesis. Vascular plants include the clubmosses, horsetails, ferns, gymnosperms (including conifers), and angiosperms (flowering plants). Scientific names for the group include Tracheophyta, Tracheobionta and Equisetopsida ''sensu lato''. Some early land plants (the rhyniophytes) had less developed vascular tissue; the term eutracheophyte has been used for all other vascular plants, including all living ones. Historically, vascular plants were known as "higher plants", as it was believed that they were further evolved than other plants due to being more complex organisms. However, this is an antiquated remnant of the obsolete scala naturae, and the term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mixed Forest
Temperate broadleaf and mixed forest is a temperate climate terrestrial habitat type defined by the World Wide Fund for Nature, with broadleaf tree ecoregions, and with conifer and broadleaf tree mixed coniferous forest ecoregions. These forests are richest and most distinctive in central China and eastern North America, with some other globally distinctive ecoregions in the Caucasus, the Himalayas, Southern Europe, Australasia, Southwestern South America and the Russian Far East. Ecology The typical structure of these forests includes four layers. * The uppermost layer is the canopy composed of tall mature trees ranging from high. Below the canopy is the three-layered, shade-tolerant understory that is roughly shorter than the canopy. * The top layer of the understory is the sub-canopy composed of smaller mature trees, saplings, and suppressed juvenile canopy layer trees awaiting an opening in the canopy. * Below the sub-canopy is the shrub layer, composed of low growi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wetland
A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The primary factor that distinguishes wetlands from terrestrial land forms or Body of water, water bodies is the characteristic vegetation of aquatic plants, adapted to the unique anoxic hydric soils. Wetlands are considered among the most biologically diverse of all ecosystems, serving as home to a wide range of plant and animal species. Methods for assessing wetland functions, wetland ecological health, and general wetland condition have been developed for many regions of the world. These methods have contributed to wetland conservation partly by raising public awareness of the functions some wetlands provide. Wetlands occur naturally on every continent. The water in wetlands is either freshwater, brackish or seawater, saltwater. The main w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecoregion
An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. Ecoregions cover relatively large areas of land or water, and contain characteristic, geographically distinct assemblages of natural communities and species. The biodiversity of flora, fauna and ecosystems that characterise an ecoregion tends to be distinct from that of other ecoregions. In theory, biodiversity or conservation ecoregions are relatively large areas of land or water where the probability of encountering different species and communities at any given point remains relatively constant, within an acceptable range of variation (largely undefined at this point). Three caveats are appropriate for all bio-geographic mapping approaches. Firstly, no single bio-geographic framework is optimal for all taxa. Ecoregions reflect the best compromise for as many taxa as possible. Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Ecoregions In The United States (EPA)
This list of ecoregions in the United States provides an overview of United States ecoregions designated by the U.S. Environmental Protection Agency (EPA) and the Commission for Environmental Cooperation (CEC). The CEC was established in 1994 by the member states of Canada, Mexico, and the United States to address regional environmental concerns under the North American Agreement on Environmental Cooperation (NAAEC), the environmental side accord to the North American Free Trade Agreement (NAFTA). The Commission's 1997 report, ''Ecological Regions of North America'', provides a framework that may be used by government agencies, non-governmental organizations, and academic researchers as a basis for risk analysis, resource management, and environmental study of the continent's ecosystems. In the United States, the EPA and the United States Geological Survey (USGS) are the principal federal agencies working with the CEC to define and map ecoregions. Ecoregions may be identified ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyla Gratiosa UMFS 2014 2
''Hyla'' is a genus of frogs in the tree frog family Hylidae. As traditionally defined, it was a wastebasket genus with more than 300 species found in Europe, Asia, Africa, and across the Americas. After a major revision of the family most of these have been moved to other genera so that ''Hyla'' now only contains 17 extant (living) species from Europe, northern Africa and Asia. The earliest known fossil member of this genus is †''Hyla swanstoni'' from the Eocene of Saskatchewan, Canada, but its designation to ''Hyla'' happened before the major revision, meaning that its position needs confirmation. The genus was established by Josephus Nicolaus Laurenti in 1768. It was named after Hylas in Greek mythology, the companion of Hercules. The name is unusual in that – though Laurenti knew that Hylas was male – the name is unambiguously treated in the feminine grammatical gender for reasons unknown. The etymology of the name is also often incorrectly given as being derived from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loess
Loess (, ; from german: Löss ) is a clastic, predominantly silt-sized sediment that is formed by the accumulation of wind-blown dust. Ten percent of Earth's land area is covered by loess or similar deposits. Loess is a periglacial or aeolian (windborne) sediment, defined as an accumulation of 20% or less of clay and a balance of roughly equal parts sand and silt (with a typical grain size from 20 to 50 micrometers), often loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. Properties Loess is homogeneous, porous, friable, pale yellow or buff, slightly coherent, typically non- stratified and often calcareous. Loess grains are angular, with little polishing or rounding, and composed of crystals of quartz, feldspar, mica and other minerals. Loess can be described as a rich, dust-like soil. Loess deposits may become very thick, more than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holly Springs National Forest
The Holly Springs National Forest (HSNF) was established by the United States Forest Service on June 15, 1936, during the tenure of United States Department of Agriculture Chief Forester Ferdinand A. Silcox. That same year, it was combined administratively with the Bienville, De Soto and Homochitto national forests, known collectively as "National Forests in Mississippi". The Holly Springs Ranger District controls of Forest Service land, interspersed with of privately owned properties, within the national forest's proclamation zone. Before the HSNF was established, much of the land was abandoned agricultural land with rapidly eroding soils. These rolling hills are now covered with loblolly and shortleaf pines, and upland hardwoods. The Civilian Conservation Corps used loblolly pine because it was easy to plant, was suitable for the depleted soils of the north central hills, and cast a large load of needles to help prevent further erosion. The land owned by the Forest Service i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tallahatchie River
The Tallahatchie River is a river in Mississippi which flows from Tippah County, through Tallahatchie County, to Leflore County, where it joins the Yalobusha River to form the Yazoo River. The river is navigable for about . At Money, Mississippi, the river's flow measures approximately 7,861 cubic feet per second. ''Tallahatchie'' is a Choctaw name meaning "rock of waters." The sources of the Tallahatchie River have outcrops of iron sandstone. As part of the Flood Control Act of 1936, the federal government built an earth-filled flood control dam on the Tallahatchie near the town of Sardis, Mississippi, creating Sardis Lake (Mississippi), Sardis Lake. Tributaries *Coldwater River (Mississippi), Coldwater River *Old Yocona River *Yocona River Canal *Little Tallahatchie River *Old Little Tallahatchie River *Panola Quitman Floodway *McIvor Drainage Canal *Tippah River *Cassidy Bayou *Black Bayou *Ascalmore Creek *Tillatoba Creek In popular culture The river is mentioned in "Ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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