|
Meadow Grasshopper
''Pseudochorthippus parallelus'' (often known by its synonym ''Chorthippus parallelus''), the meadow grasshopper, is a common species of grasshopper in the tribe Gomphocerini. It is found in non-arid grasslands throughout the well vegetated areas of Europe and some adjoining areas of Asia. It is a well-studied organism in the discipline of Evolutionary biology and was an early and important model system for the study of European phylogeography. Distribution The range of the Meadow Grasshopper extends from the Atlantic coast of Europe, including the British Isles, to the Urals. It is found from Scandinavia in the north to southern Spain and Anatolia in the south. It prefers moist vegetation and in southern regions is typically found in river valleys and at altitude (up to approx 2000m), not being found in arid areas. Physical appearance Females grow to approximately and are larger and less active than males that grow to approximately . Both sexes are flightless. In femal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johan Wilhelm Zetterstedt
Johan Wilhelm Zetterstedt (20 May 1785 – 23 December 1874) was a Swedish naturalist who worked mainly on Diptera and Hymenoptera. Biography Zetterstedt studied at the University of Lund, where he was a pupil of Anders Jahan Retzius. He received the title of professor in 1822 and succeeded Carl Adolph Agardh as professor of botany and practical economy in 1836, retiring as emeritus in 1853. In 1831, he was elected a member of the Royal Swedish Academy of Sciences. He is best known as an entomologist. His collections of Scandinavian, Lapland and world Diptera and Orthoptera are in the Zoological Museum of the University of Lund. His students include Anders Gustaf Dahlbom. Selected works *1810-1812 ''Dissertatio de Fæcundatione Plantarum'' *1821 ''Orthoptera Sueciae disposita et descripta''. Lundae (Lund),132 pp. *1828 ''Fauna Insectorum Lapponica'' *1835 ''Monographia Scatophagarum Scandinaviæ'' *1837 Conspectus familiarum, generum et specierum Dipterorum, in Fauna insectoru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek grc, label=none, πλεῖστος, pleīstos, most and grc, label=none, καινός, kainós (latinized as ), 'new'. At the end of the preceding Pliocene, the previously isolated North and South American continents were joined by the Isthmus of Panama, causing Great American Interchang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insects Of Asia
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gomphocerinae
Gomphocerinae, sometimes called "slant-faced grasshoppers", are a subfamily of grasshoppers found on every continent but Antarctica and Australia. Tribes and genera Tribes and genera include: Arcypterini Auth.: Bolívar, 1914 - Africa, Palearctic, mainland Asia #'' Adolfius'' Harz, 1988 #'' Amplicubitoacris'' Zheng, 2010 #'' Arcyptera'' Serville, 1838 #'' Asulconotoides'' Liu, 1984 #'' Asulconotus'' Ying, 1974 #'' Aulacobothrus'' Bolívar, 1902 #'' Berengueria'' Bolívar, 1909 #'' Brachypteracris'' Cao & Zheng, 1996 #'' Crucinotacris'' Jago, 1996 #'' Kangacris'' Yin, 1983 #'' Kangacrisoides'' Wang, Zheng & Niu, 2006 #'' Leionotacris'' Jago, 1996 #'' Leuconemacris'' Zheng, 1988 #'' Ningxiacris'' Zheng & He, 1997 #'' Pseudoarcyptera'' Bolívar, 1909 #'' Ptygonotus'' Tarbinsky, 1927 #'' Rhaphotittha'' Karsch, 1896 #'' Suacris'' Yin, Zhang & Li, 2002 #'' Transtympanacris'' Lian & Zheng, 1985 #'' Xinjiangacris'' Zheng, 1993 Other tribes A * Acrolophitini Scudder, 1901 - Nearctic ** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Google Scholar
Google Scholar is a freely accessible web search engine that indexes the full text or metadata of scholarly literature across an array of publishing formats and disciplines. Released in beta in November 2004, the Google Scholar index includes peer-reviewed online academic journals and books, conference papers, theses and dissertations, preprints, abstracts, technical reports, and other scholarly literature, including court opinions and patents. Google Scholar uses a web crawler, or web robot, to identify files for inclusion in the search results. For content to be indexed in Google Scholar, it must meet certain specified criteria. An earlier statistical estimate published in PLOS One using a mark and recapture method estimated approximately 80–90% coverage of all articles published in English with an estimate of 100 million.''Trend Watch'' (2014) Nature 509(7501), 405 – discussing Madian Khabsa and C Lee Giles (2014''The Number of Scholarly Documents on the Public Web'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ORCID
The ORCID (; Open Researcher and Contributor ID) is a nonproprietary alphanumeric code to uniquely identify authors and contributors of scholarly communication as well as ORCID's website and services to look up authors and their bibliographic output (and other user-supplied pieces of information). This addresses the problem that a particular author's contributions to the scientific literature or publications can be hard to recognize as most personal names are not unique, they can change ( such as with marriage), have cultural differences in name order, contain inconsistent use of first-name abbreviations and employ different writing systems. It provides a persistent identity for humans, similar to tax ID numbers, that are created for content-related entities on digital networks by digital object identifiers (DOIs). Uses ORCID aims to provide a persistent code for humans, to address the problem that a particular author's contributions to scholarly communication can be hard to r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heredity (journal)
''Heredity'' is a monthly peer reviewed scientific journal published by Nature Portfolio. It covers heredity in a biological sense, i.e. genetics. The journal was founded by Ronald Fisher and C. D. Darlington in 1947 and is the official journal of The Genetics Society. From 1996 the publishing was taken over by Nature Portfolio. The editor-in-chief is Sara Goodacre. According to the ''Journal Citation Reports'', the journal has a 2021 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 3.832, ranking it 61st out of 173 journals in the category "Ecology", 19th out of 51 journals in the category "Evolutionary Biology", and 79th out of 175 journals in the category "Genetics & Heredity". References External links * The Genetics Society* Genetics in the Uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nature Portfolio
Nature Portfolio (formerly known as Nature Publishing Group and Nature Research) is a division of the international scientific publishing company Springer Nature that publishes academic journals, magazines, online databases, and services in science and medicine. Nature Research's flagship publication is ''Nature'', a weekly multidisciplinary journal first published in 1869. It also publishes the ''Nature-''titled research journals, ''Nature Reviews'' journals (since 2000), society-owned academic journals, and a range of open access journals, including '' Scientific Reports'' and ''Nature Communications''. Springer Nature also publishes ''Scientific American'' in 16 languages, a magazine intended for the general public. In 2013, prior to the merger with Springer and the creation of Springer Nature, Nature Publishing Group's owner, Holtzbrinck Publishing Group, bought a controlling stake in Frontiers. Before Springer Nature was formed in 2015, Nature Research (as the Nature Publi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Genetics Society
The Genetics Society is a British learned society. It was founded by William Bateson and Edith Rebecca Saunders in 1919 and celebrated its centenary year in 2019. It is therefore one of the oldest learned societies devoted to genetics. Its membership of over 2000 consists of most of the UK's active professional geneticists, including researchers, teachers and students. Industry and publishing are also represented in the membership. The Genetics Society is a registered charity that organises scientific meetings to promote current research in genetics and genomics, and publishes primary research in genetics in the journals Heredity and Genes and Development. It supports students to attend meetings, sponsors research through fieldwork grants and student bursaries, and promotes the public understanding of genetics. Presidents of The Genetics Society Society publications The society publishes the scientific journal, journal ''Heredity (journal), Heredity'' in association with Natu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evidence For Speciation By Reinforcement
Reinforcement is a process within speciation where natural selection increases the reproductive isolation between two populations of species by reducing the production of hybrids. Evidence for speciation by reinforcement has been gathered since the 1990s, and along with data from comparative studies and laboratory experiments, has overcome many of the objections to the theory. Differences in behavior or biology that inhibit formation of hybrid zygotes are termed prezygotic isolation. Reinforcement can be shown to be occurring (or to have occurred in the past) by measuring the strength of prezygotic isolation in a sympatric population in comparison to an allopatric population of the same species. Comparative studies of this allow for determining large-scale patterns in nature across various taxa. Mating patterns in hybrid zones can also be used to detect reinforcement.Daniel J. Howard (1993). Reinforcement: origin, dynamics and fate of an evolutionary hypothesis. In: Harrison ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reinforcement (speciation)
Reinforcement is a process of speciation where natural selection increases the reproductive isolation (further divided to pre-zygotic isolation and post-zygotic isolation) between two populations of species. This occurs as a result of selection acting against the production of hybrid individuals of low fitness. The idea was originally developed by Alfred Russel Wallace and is sometimes referred to as the Wallace effect. The modern concept of reinforcement originates from Theodosius Dobzhansky. He envisioned a species separated allopatrically, where during secondary contact the two populations mate, producing hybrids with lower fitness. Natural selection results from the hybrid's inability to produce viable offspring; thus members of one species who do not mate with members of the other have greater reproductive success. This favors the evolution of greater prezygotic isolation (differences in behavior or biology that inhibit formation of hybrid zygotes). Reinforcement is on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alps
The Alps () ; german: Alpen ; it, Alpi ; rm, Alps ; sl, Alpe . are the highest and most extensive mountain range system that lies entirely in Europe, stretching approximately across seven Alpine countries (from west to east): France, Switzerland, Italy, Liechtenstein, Austria, Germany, and Slovenia. The Alpine arch generally extends from Nice on the western Mediterranean to Trieste on the Adriatic and Vienna at the beginning of the Pannonian Basin. The mountains were formed over tens of millions of years as the African and Eurasian tectonic plates collided. Extreme shortening caused by the event resulted in marine sedimentary rocks rising by thrusting and folding into high mountain peaks such as Mont Blanc and the Matterhorn. Mont Blanc spans the French–Italian border, and at is the highest mountain in the Alps. The Alpine region area contains 128 peaks higher than . The altitude and size of the range affect the climate in Europe; in the mountains, precipitation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
