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Cassini Periodical Cicadas
The Cassini periodical cicadas are a pair of closely related species of periodical cicadas: '' Magicicada cassini'' (Fisher, 1852), having a 17-year life cycle, and ''Magicicada tredecassini'' (Alexander and Moore, 1962), a nearly identical species with a 13-year life cycle. Courting behavior of Cassini cicadas is unusual because large groups of males may sing and fly together in synchrony. Bursts of sound alternate with silence as thousands of males sing in unison, then leave perches and seek a new perch before the next ensemble song. Description All ''Magicicada'' species have a black dorsal thorax with red eyes and orange wing veins. Cassini periodical cicadas are smaller than decim periodical cicadas. The abdomen is black except for occasional faint orange-yellow marks on the ventral surface seen in some location. In a typical brood of periodical cicadas, decim and decula types will be present as well as cassini. The three different types have unique species song-types; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magicicada Cassini Female Ovipositing - Journal
The term periodical cicada is commonly used to refer to any of the seven species of the genus ''Magicicada'' of eastern North America, the 13- and 17-year cicadas. They are called periodical because nearly all individuals in a local population are developmentally synchronized and emerge in the same year. Although they are sometimes called "locusts", this is a misnomer, as cicadas belong to the taxonomic order Hemiptera (true bugs), suborder Auchenorrhyncha, while locusts are grasshoppers belonging to the order Orthoptera. ''Magicicada'' belongs to the cicada tribe Lamotialnini, a group of genera with representatives in Australia, Africa, and Asia, as well as the Americas. ''Magicicada'' species spend around 99.5% of their long lives underground in an immature state called a nymph. While underground the nymphs feed on xylem fluids from the roots of deciduous forest trees in the eastern United States. In the spring of their 13th or 17th year mature cicada nymphs emerge between late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Periodical Cicada
The term periodical cicada is commonly used to refer to any of the seven species of the genus ''Magicicada'' of eastern North America, the 13- and 17-year cicadas. They are called periodical because nearly all individuals in a local population are developmentally synchronized and emerge in the same year. Although they are sometimes called "locusts", this is a misnomer, as cicadas belong to the taxonomic order Hemiptera (true bugs), suborder Auchenorrhyncha, while locusts are grasshoppers belonging to the order Orthoptera. ''Magicicada'' belongs to the cicada tribe Lamotialnini, a group of genera with representatives in Australia, Africa, and Asia, as well as the Americas. ''Magicicada'' species spend around 99.5% of their long lives underground in an immature state called a nymph. While underground the nymphs feed on xylem fluids from the roots of deciduous forest trees in the eastern United States. In the spring of their 13th or 17th year mature cicada nymphs emerge between late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magicicada Cassini
''Magicicada cassini'' (originally spelled ''cassinii'' ), known as the 17-year cicada, Cassin's periodical cicada or the dwarf periodical cicada, is a species of periodical cicada. It is endemic to North America. It has a 17-year life cycle but is otherwise indistinguishable from the 13-year periodical cicada ''Magicicada tredecassini''. The two species are usually discussed together as "cassini periodical cicadas" or "cassini-type periodical cicadas." Unlike other periodical cicadas, cassini-type males may synchronize their courting behavior so that tens of thousands of males sing and fly in unison. The species was first reported to the Academy of Natural Sciences of Philadelphia by Margaretta Morris in 1846. In 1852, the species was formally described by J. C. Fisher and given the specific name ''cassini'' in honour of John Cassin, an American ornithologist, whose own report was included by Fisher in his publication. Description The adult ''M. cassini'' is very similar in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magicicada Tredecassini
''Magicicada tredecassini'' is a species of periodical cicada endemic to the United States. It has a 13-year lifecycle but is otherwise indistinguishable from the 17-year periodical cicada ''Magicicada cassini''. The two species are usually discussed together as "cassini periodical cicadas The Cassini periodical cicadas are a pair of closely related species of periodical cicadas: ''Magicicada cassini'' (Fisher, 1852), having a 17-year life cycle, and '' Magicicada tredecassini'' (Alexander and Moore, 1962), a nearly identical speci ..." or "cassini-type periodical cicadas." Unlike other periodical cicadas, cassini-type males may synchronize their courting behavior so that tens of thousands of males sing and fly in unison. Life cycle Their median life cycle from egg to natural adult death is around thirteen years. However, their life cycle can range from nine years to seventeen years. References {{Taxonbar, from=Q16754783 Insects of the United States Insects described in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synchronization
Synchronization is the coordination of events to operate a system in unison. For example, the conductor of an orchestra keeps the orchestra synchronized or ''in time''. Systems that operate with all parts in synchrony are said to be synchronous or ''in sync''—and those that are not are '' asynchronous''. Today, time synchronization can occur between systems around the world through satellite navigation signals and other time and frequency transfer techniques. Navigation and railways Time-keeping and synchronization of clocks is a critical problem in long-distance ocean navigation. Before radio navigation and satellite-based navigation, navigators required accurate time in conjunction with astronomical observations to determine how far east or west their vessel traveled. The invention of an accurate marine chronometer revolutionized marine navigation. By the end of the 19th century, important ports provided time signals in the form of a signal gun, flag, or dropping ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unison
In music, unison is two or more musical parts that sound either the same pitch or pitches separated by intervals of one or more octaves, usually at the same time. ''Rhythmic unison'' is another term for homorhythm. Definition Unison or perfect unison (also called a prime, or perfect prime)Benward & Saker (2003), p. 53. may refer to the (pseudo-) interval formed by a tone and its duplication (in German, ''Unisono'', ''Einklang'', or ''Prime''), for example C–C, as differentiated from the second, C–D, etc. In the unison the two pitches have the ratio of 1:1 or 0 half steps and zero cents. Although two tones in unison are considered to be the same pitch, they are still perceivable as coming from separate sources, whether played on instruments of a different type: ; or of the same type: . This is because a pair of tones in unison come from different locations or can have different "colors" ( timbres), i.e. come from different musical instruments or human voices. Voices wi ... [...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 institu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decula Periodical Cicadas
The term periodical cicada is commonly used to refer to any of the seven species of the genus ''Magicicada'' of eastern North America, the 13- and 17-year cicadas. They are called periodical because nearly all individuals in a local population are developmentally synchronized and emerge in the same year. Although they are sometimes called "locusts", this is a misnomer, as cicadas belong to the taxonomic order Hemiptera (true bugs), suborder Auchenorrhyncha, while locusts are grasshoppers belonging to the order Orthoptera. ''Magicicada'' belongs to the cicada tribe Lamotialnini, a group of genera with representatives in Australia, Africa, and Asia, as well as the Americas. ''Magicicada'' species spend around 99.5% of their long lives underground in an immature state called a nymph. While underground the nymphs feed on xylem fluids from the roots of deciduous forest trees in the eastern United States. In the spring of their 13th or 17th year mature cicada nymphs emerge between late ... [...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 international ... [...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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Rothenberg
David Rothenberg (born 1962) is a professor of philosophy and music at the New Jersey Institute of Technology, with a special interest in animal sounds as music. He is also a composer and jazz musician whose books and recordings reflect a longtime interest in understanding other species such as singing insects by making music with them. Life and work Rothenberg graduated from Harvard and took his PhD from Boston University. Looking back at his high school years in the 1970s, Rothenberg told Claudia Dreifus of ''The New York Times'', "I was influenced by saxophonist Paul Winter's ''Common Ground'' album, which had his own compositions with whale and bird sounds mixed in. That got me interested in using music to learn more about the natural world." As an undergraduate at Harvard, Rothenberg created his own major to combine music with communication. He traveled in Europe after graduation, playing jazz clarinet. Listening to the recorded song of a hermit thrush, he heard stru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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