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Illinois Chorus Frog
The Illinois chorus frog (''Pseudacris illinoensis'') is a species of chorus frog that lives in scattered, restricted habitat ecosystems in the states of Arkansas, Illinois, and Missouri. It was published by Smith in 1951. Its life cycle is little known, its isolated populations are increasingly restricted by agricultural drainage, and it is listed as a threatened subspecies.Jeanne Townsend Handy, "The Secret Life of the Illinois Chorus Frog", ''Outdoor Illinois'' XIX:3 (March 2011), pages 9-11. It is often referred to as a subspecies of ''P. streckeri''. Collins recognized it as its own species which was followed by ASW6.0 and Amphibiaweb on the basis of its diagnosability from Pseudacris streckeri and its allopatry. The IUCNredlist 2013.2 has not incorporated this taxonomic split. Description The Illinois chorus frog, a wetland amphibian, grows to a maximum length of . Its range is restricted to isolated sandy wetlands along the banks of the Mississippi River and a major ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chorus Frog
''Pseudacris'' (commonly known as the chorus frogs) is a genus of frogs in the family Hylidae found in North America ranging from the Pacific coastline to the Atlantic. The name of the genus comes from the Greek ''pseudes'' (false) and ''akris'' (locust), probably a reference to the repeated rasping trill of most chorus frogs, which is similar to that of the insect. It could also mean ‘false '' Acris''’, distinguishing it from another frog genus. Taxonomy The species in this genus are disputed. Molecular genetic research shows little consistency due to hybridization between species, making taxonomic organization difficult. The number of species in this genus is controversial, but Frost ''et al.'' list 19 species (all shown here), and AmphibiaWeb AmphibiaWeb is an American non-profit website that provides information about amphibians. It is run by a group of universities working with the California Academy of Sciences: San Francisco State University, the University of C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foreleg
A forelimb or front limb is one of the paired articulated appendages (limbs) attached on the cranial (anterior) end of a terrestrial tetrapod vertebrate's torso. With reference to quadrupeds, the term foreleg or front leg is often used instead. In bipedal animals with an upright posture (e.g. humans and some primates), the term upper limb is often used. A forelimb is not to be confused with a forearm, which is a distal portion of the human upper limb between the elbow and the wrist. All vertebrate forelimbs are homologous, meaning that they all evolved from the same structures. For example, the flipper of a turtle or of a dolphin, the arm of a human, the foreleg of a horse, and the wings of both bats and birds are ultimately homologous, despite the large differences between them. Specific uses of the forelimbs may be analogous if they evolved from different sub-structures of the forelimb, such as the flippers of turtles and dolphins, and the wings of birds and bats. Evo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of The United States
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic decline ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The State Journal-Register
''The State Journal-Register'' is the only local daily newspaper for Springfield, Illinois, and its surrounding area. It was founded in 1831 as the ''Sangamo Journal'' by William Bailhache and Edward Baker, and describes itself as "the oldest newspaper in Illinois". As such, it and its editor, Edward L. Baker, supported the political career of the Springfield-based Abraham Lincoln in the years before the American Civil War; in fact, it was in the ''Journal''s office that Lincoln and his friends waited for the telegraphic news from Chicago to find out who would be the Republican presidential nominee in 1860. Later in publication, the name was changed to ''Illinois State Journal''. The cover-price is $2 daily, $4.50 on Sunday. Copley Press bought the ''State Journal'' in 1927. In 1942, it bought Springfield's afternoon paper, the ''Illinois State Register''. For years, the two papers maintained separate editorial stances, with the ''State Journal'' tilting Republican and the ''Stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mason County, Illinois
Mason County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 14,666. Its county seat is Havana. The county is named in honor of George Mason, a member of the Virginia legislature who campaigned for the adoption of the United States Bill of Rights. History Mason County was created in 1841 out of portions of Tazewell and Menard counties. File:Mason County 1841.png, Mason County at the time of its creation in 1841 Geography According to the U.S. Census Bureau, the county has an area of , of which is land and (4.3%) is water. Mason County is bound on the south by the Sangamon River, and on the west by the Illinois River. These rivers join at the county's southwest tip. The soil covering much of Mason County is very sandy. This was formed during the melting of the Wisconsin Glacier about 10,000 years ago. Meltwater from the glacier deposited large amounts of sand in a delta region near at the junction of the Sangamon and Illin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illinois Department Of Natural Resources
The Illinois Department of Natural Resources (IDNR) is the code department of the Illinois state government that operates the state parks and state recreation areas, enforces the fishing and game laws of Illinois, regulates Illinois coal mines, operates the Illinois State Museum system, and oversees scientific research into the soil, water, and mineral resources of the state. In 2017, the Illinois Historic Preservation Division was added to its portfolio. It is headquartered in the state capital of Springfield. History The former ''Illinois Department of Conservation'' was reorganized into the Illinois Department of Natural Resources by executive order in 1995. The reorganization, codified into state law by Public Act 89-50, also added functions of the former ''Illinois Department of Energy and Natural Resources'' and the ''Illinois Department of Mines and Minerals'' to the agglomerated agency Organization As of 2009, the Illinois Department of Natural Resources was divided up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rice Paddy
A paddy field is a flooded field of arable land used for growing semiaquatic crops, most notably rice and taro. It originates from the Neolithic rice-farming cultures of the Yangtze River basin in southern China, associated with pre-Austronesian and Hmong-Mien cultures. It was spread in prehistoric times by the expansion of Austronesian peoples to Island Southeast Asia, Southeast Asia including Northeastern India, Madagascar, Melanesia, Micronesia, and Polynesia. The technology was also acquired by other cultures in mainland Asia for rice farming, spreading to East Asia, Mainland Southeast Asia, and South Asia. Fields can be built into steep hillsides as terraces or adjacent to depressed or steeply sloped features such as rivers or marshes. They require a great deal of labor and materials to create and need large quantities of water for irrigation. Oxen and water buffalo, adapted for life in wetlands, are important working animals used extensively in paddy field farm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laser Level
In surveying and construction, the laser level is a control tool consisting of a rotating laser beam projector that can be affixed to a tripod. The tool is leveled according to the accuracy of the device and projects a fixed red or green beam in a plane about the horizontal and/or vertical axis. Development The concept of a laser level has been around since at least the early 1970s, the original spinning-mirror design laser plane and line level was patented by the late 1980s, and the compact lens-based laser line level (as produced by many tool manufacturers today) was patented in the late 1990s. It was invented by Oscar Soliz in the late 1960’s, who later sold the rights to it. Rotary laser level A rotary laser level is a more advanced laser level in that it spins the beam of light fast enough to give the effect of a complete 360 degree horizontal or vertical plane, thus illuminating not just a fixed line, but a horizontal plane. The laser beam projector employs a rotating ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rice
Rice is the seed of the grass species ''Oryza sativa'' (Asian rice) or less commonly ''Oryza glaberrima ''Oryza glaberrima'', commonly known as African rice, is one of the two domesticated rice species. It was first domesticated and grown in West Africa around 3,000 years ago. In agriculture, it has largely been replaced by higher-yielding Asian r ...'' (African rice). The name wild rice is usually used for species of the genera ''Zizania (genus), Zizania'' and ''Porteresia'', both wild and domesticated, although the term may also be used for primitive or uncultivated varieties of ''Oryza''. As a cereal, cereal grain, domesticated rice is the most widely consumed staple food for over half of the world's World population, human population,Abstract, "Rice feeds more than half the world's population." especially in Asia and Africa. It is the agricultural commodity with the third-highest worldwide production, after sugarcane and maize. Since sizable portions of sugarcane and ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stuttgart, Arkansas
Stuttgart is a city in and the county seat of the northern district of Arkansas County, Arkansas, United States. Established by German settlers, it was named for its larger German counterpart. Known as the "Rice and Duck Capital of the World", the city is an international destination for waterfowl hunting along the Mississippi Flyway. Stuttgart is the most important city on the Arkansas Grand Prairie, a region known for rice cultivation. The economy is largely based on agricultural production, waterfowl tourism, and supporting industries. As of the 2010 census it had a population of 9,326. It is located on U.S. Route 165, approximately southeast of Little Rock; and on U.S. Route 79 approximately 110 miles southwest of Memphis, Tennessee. Stuttgart is also on the Union Pacific Railroad between Memphis, Tennessee, and Pine Bluff, Arkansas. History Stuttgart was founded by Reverend Adam Bürkle, a native of Plattenhardt in Germany. He moved to the United States in 1852 and fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breast Stroke
Breaststroke is a swimming style in which the swimmer is on their chest and the torso does not rotate. It is the most popular recreational style due to the swimmer's head being out of the water a large portion of the time, and that it can be swum comfortably at slow speeds. In most swimming classes, beginners learn either the breaststroke or the freestyle (front crawl) first. However, at the competitive level, swimming breaststroke at speed requires endurance and strength comparable to other strokes. Some people refer to breaststroke as the "frog" stroke, as the arms and legs move somewhat like a frog swimming in the water. The stroke itself is the slowest of any competitive strokes and is thought to be the oldest of all swimming strokes. Speed and ergonomics Breaststroke is the slowest of the four official styles in competitive swimming. The fastest breaststrokers can swim about 1.70 meters (~5.6 feet) per second. It is sometimes the hardest to teach to rising swimmers aft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hibernation
Hibernation is a state of minimal activity and metabolic depression undergone by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It most commonly occurs during winter months. Although traditionally reserved for "deep" hibernators such as rodents, the term has been redefined to include animals such as bears and is now applied based on active metabolic suppression rather than any absolute decline in body temperature. Many experts believe that the processes of daily torpor and hibernation form a continuum and utilise similar mechanisms. The equivalent during the summer months is aestivation. Hibernation functions to conserve energy when sufficient food is not available. To achieve this energy saving, an endothermic animal decreases its metabolic rate and thereby its body temperature. Hibernation may last days, weeks, or months—depending on the species, ambient temperature ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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