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Decim Periodical Cicadas
Decim periodical cicadas is a term used to group three closely related species of periodical cicadas: ''Magicicada septendecim'', '' Magicicada tredecim'', and '' Magicicada neotredecim''. ''M. septendecim'', first described by Carl Linnaeus, has a 17-year life cycle; the name ''septendecim'' is Latin for 17. ''M. tredecim'', first described in 1868, has a similar call and appearance but a 13-year life cycle; ''tredecim'' is Latin for 13. ''M. neotredecim'' (Latin for "new 13"), first described in 2000 by Marshall and Cooley in an article in the journal ''Evolution'', is a 13-year species but otherwise much more similar to ''M. septendecim'' than to ''M. tredecim'' as shown by studies of DNA and abdominal color variation by Chris Simon and colleagues in a companion article in the same journal issue. Description Like other species included in ''Magicicada'', decim periodical cicadas have synchronized development with a long larval period underground (13 or 17 years, depending on spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snodgrass Magicicada Septendecim
The family name Snodgrass is said to originate from lands in the parish of Irvine, Ayrshire, Scotland, known as Snodgrasse, or Snodgers, at a bend in the River Garnock at 55°38' north, 4°42' west, which were rented out in plots. Both forms are recorded in Ayrshire and in Glasgow between the 13th and 16th centuries. The name means "smooth grass" (Juncus), i.e. grass without nodes, in Middle English. In 1528 a charter from the King lists the lands of "Snotgerss" as being one of the confirmed possessions of Hugh, third Earl of Eglinton; the next record seen of the name is in the late 17th century. Snodgrass in America The first records of the Snodgrass family in the new world are in the early 18th century in Virginia. The Virginia town of Hedgesville (now West Virginia) was founded by William Snodgrass, who arrived in the American colonies in 1700. William Snodgrass is buried in the cemetery of Tuscarora Presbyterian Church in Berkeley County, West Virginia. Closer examination reve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cicadas
The cicadas () are a superfamily, the Cicadoidea, of insects in the order Hemiptera (true bugs). They are in the suborder Auchenorrhyncha, along with smaller jumping bugs such as leafhoppers and froghoppers. The superfamily is divided into two families, the Tettigarctidae, with two species in Australia, and the Cicadidae, with more than 3,000 species described from around the world; many species remain undescribed. Cicadas have prominent eyes set wide apart, short antennae, and membranous front wings. They have an exceptionally loud song, produced in most species by the rapid buckling and unbuckling of drumlike tymbals. The earliest known fossil Cicadomorpha appeared in the Upper Permian period; extant species occur all around the world in temperate to tropical climates. They typically live in trees, feeding on watery sap from xylem tissue, and laying their eggs in a slit in the bark. Most cicadas are cryptic. The vast majority of species are active during the day as adults, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Springer Science+Business Media
Springer Science+Business Media, commonly known as Springer, is a German multinational publishing company of books, e-books and peer-reviewed journals in science, humanities, technical and medical (STM) publishing. Originally founded in 1842 in Berlin, it expanded internationally in the 1960s, and through mergers in the 1990s and a sale to venture capitalists it fused with Wolters Kluwer and eventually became part of Springer Nature in 2015. Springer has major offices in Berlin, Heidelberg, Dordrecht, and New York City. History Julius Springer founded Springer-Verlag in Berlin in 1842 and his son Ferdinand Springer grew it from a small firm of 4 employees into Germany's then second largest academic publisher with 65 staff in 1872.Chronology ". Springer Science+Business Media. In 1964, Springer expanded its business internationally, o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecotone
An ecotone is a transition area between two biological communities, where two communities meet and integrate. It may be narrow or wide, and it may be local (the zone between a field and forest) or regional (the transition between forest and grassland ecosystems). An ecotone may appear on the ground as a gradual blending of the two communities across a broad area, or it may manifest itself as a sharp boundary line. Etymology The word ''ecotone'' was coined by Alfred Russel Wallace, who first observed the abrupt boundary between two biomes in 1859. It is formed as a combination of ''ecology'' plus ''-tone'', from the Greek ''tonos'' or tension – in other words, a place where ecologies are in tension. Features There are several distinguishing features of an ecotone. First, an ecotone can have a sharp vegetation transition, with a distinct line between two communities. For example, a change in colors of grasses or plant life can indicate an ecotone. Second, a change in physiogn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitochondrial DNA
Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial DNA is only a small portion of the DNA in a eukaryotic cell; most of the DNA can be found in the cell nucleus and, in plants and algae, also in plastids such as chloroplasts. Human mitochondrial DNA was the first significant part of the human genome to be sequenced. This sequencing revealed that the human mtDNA includes 16,569 base pairs and encodes 13 proteins. Since animal mtDNA evolves faster than nuclear genetic markers, it represents a mainstay of phylogenetics and evolutionary biology. It also permits an examination of the relatedness of populations, and so has become important in anthropology and biogeography. Origin Nuclear and mitochondrial DNA are thought to be of separate evolutionary origin, with the mtDNA being derived ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Connecticut Entomological Society
Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its capital is Hartford and its most populous city is Bridgeport. Historically the state is part of New England as well as the tri-state area with New York and New Jersey. The state is named for the Connecticut River which approximately bisects the state. The word "Connecticut" is derived from various anglicized spellings of "Quinnetuket”, a Mohegan-Pequot word for "long tidal river". Connecticut's first European settlers were Dutchmen who established a small, short-lived settlement called House of Hope in Hartford at the confluence of the Park and Connecticut Rivers. Half of Connecticut was initially claimed by the Dutch colony New Netherland, which included much of the land between the Connecticut and Delaware Rivers, although the first major ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brood XIX
Brood XIX (also known as The Great Southern Brood) is the largest (most widely distributed) brood of 13-year periodical cicadas, last seen in 2011 across a wide stretch of the southeastern United States. Periodical cicadas (''Magicicada spp.'') are often referred to as "17-year locusts" because most of the known distinct broods have a 17-year life cycle. Brood XIX is one of only three surviving broods with a 13-year cycle. It is also notable because it includes four different 13-year species, one of which was discovered in Brood XIX in 1998 by scientists listening to cicada songs. Position among other broods of cicadas Every 13 years, Brood XIX tunnels ''en masse'' to the surface of the ground, mates, lays eggs, and then dies off in several weeks. In 1907, entomologist C. L. Marlatt postulated the existence of 30 different broods of periodical cicadas: 17 distinct broods with a 17-year life cycle, to which he assigned Roman numerals I through XVII (with emerging years 1893 th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arc Of Appalachia
Highlands Sanctuary, Inc. is a nonprofit organization which operates under the dba (doing business as) of The Arc of Appalachia Preserve System. The Arc of Appalachia has been in operation since 1995, working to create and steward nature preserves in the forested Appalachian counties of southern Ohio. In 2016, The Arc of Appalachia had completed the protection of 4268 acres in 15 preserve regions. The Arc of Appalachia's mission is to protect the rich diversity of life of America's Great Eastern Temperate Forest, as the large biome expresses itself in the southern Ohio region. The Arc of Appalachia's land stewardship practices are guided by the following goals: to maximize the numbers of plants and animals native to the protected ecosystems, restore balance to the natural communities, and preserve natural beauty for visitors to enjoy on public hiking trails. The Arc of Appalachia is also an educational organization, offering to the public guided hikes, workshops, nature retreats, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Michigan
, mottoeng = "Arts, Knowledge, Truth" , former_names = Catholepistemiad, or University of Michigania (1817–1821) , budget = $10.3 billion (2021) , endowment = $17 billion (2021)As of October 25, 2021. , president = Santa Ono , provost = Laurie McCauley , established = , type = Public research university , academic_affiliations = , students = 48,090 (2021) , undergrad = 31,329 (2021) , postgrad = 16,578 (2021) , administrative_staff = 18,986 (2014) , faculty = 6,771 (2014) , city = Ann Arbor , state = Michigan , country = United States , coor = , campus = Midsize City, Total: , including arboretum , colors = Maize & Blue , nickname = Wolverines , sporti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocelli
A simple eye (sometimes called a pigment pit) refers to a form of eye or an optical arrangement composed of a single lens and without an elaborate retina such as occurs in most vertebrates. In this sense "simple eye" is distinct from a multi-lensed "compound eye", and is not necessarily at all simple in the usual sense of the word. The structure of an animal's eye is determined by the environment in which it lives, and the behavioural tasks it must fulfill to survive. Arthropods differ widely in the habitats in which they live, as well as their visual requirements for finding food or conspecifics, and avoiding predators. Consequently, an enormous variety of eye types are found in arthropods. They possess a wide variety of novel solutions to overcome visual problems or limitations. Use of the term ''simple eye'' is flexible, and must be interpreted in proper context; for example, the eyes of humans and of other large animals such as most cephalopods, are ''camera eyes'' and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Connecticut
The University of Connecticut (UConn) is a public land-grant research university in Storrs, Connecticut, a village in the town of Mansfield. The primary 4,400-acre (17.8 km2) campus is in Storrs, approximately a half hour's drive from Hartford and 90 minutes from Boston. UConn was founded in 1881 as the Storrs Agricultural School, named after two brothers who donated the land for the school. In 1893, the school became a public land grant college, becoming the University of Connecticut in 1939. Over the following decade, social work, nursing and graduate programs were established, while the schools of law and pharmacy were also absorbed into the university. During the 1960s, UConn Health was established for new medical and dental schools. John Dempsey Hospital opened in Farmington in 1975. The university is classified among "R1: Doctoral Universities – Very high research activity". The university has been considered a Public Ivy. UConn is one of the founding institution ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
