| Myriapoda Fossil range: Silurian - Recent |
||||||
|---|---|---|---|---|---|---|
_3.jpg/240px-Steinläufer_(Lithobius_forficatus)_3.jpg) Lithobius forficatus, a centipede
|
||||||
| Scientific classification | ||||||
|
||||||
| Classes [1] | ||||||
Myriapoda is a subphylum of arthropods containing millipedes, centipedes, and others. The Silurian is a geologic period and system that extends from the end of the Ordovician period about 443 The Holocene is a Geological epoch which began approximately 10000 years ago (about 8000 BC Lithobius forficatus, most commonly known as the Brown Centipede, is a common European Centipede of the family Lithobiidae Arthropods are Animals belonging to the Phylum Arthropoda (from Greek ἄρθρον arthron, " Joint " Pierre André Latreille ( November 20, 1762 - February 6, 1833) was a French entomologist. A class is the Taxonomic rank in the Biological classification of organisms in Biology below phylum and above order. Centipedes (from Latin prefix centi-, "hundred" and Greek ποδός podos, " Foot " are Millipedes (Class Diplopoda, previously also known as Chilognatha are Arthropods that have two pairs of legs per segment (except for the first segment behind Pauropods are small pale Centipede -like Arthropods. They form the order Pauropodina, belonging to the monotypic class Symphylans, also known as garden centipedes or glasshouse symphylans, are Soil -dwelling Arthropods of the class Symphyla In life a subphylum is a Taxonomic rank intermediate between phylum and superclass. Arthropods are Animals belonging to the Phylum Arthropoda (from Greek ἄρθρον arthron, " Joint " Millipedes (Class Diplopoda, previously also known as Chilognatha are Arthropods that have two pairs of legs per segment (except for the first segment behind Centipedes (from Latin prefix centi-, "hundred" and Greek ποδός podos, " Foot " are The group contains 13,000 species, all of which are terrestrial [2]. Terrestrial animals are Animals that live predominantly or entirely on land as compared with Aquatic animals which live predominantly or entirely in the water (e Although their name suggests they have myriad (10,000) legs, myriapods range from having over 750 legs (Illacme plenipes) [3] to having fewer than ten legs. Myriad is a classical Greek name for the Number 104 = 10000. In modern English the word refers to an unspecified large quantity Illacme plenipes is a Millipede found in the central region of the U They have a single pair of antennae and simple eyes. Antennae (singular antenna) are paired Appendages connected to the front-most segments of Arthropods In Crustaceans they are
Myriapods are most abundant in moist forests, where they fulfill an important role in breaking down decaying plant material [2], although a few live in grasslands, semi-arid habitats or even deserts [4]. Grasslands (also called greenswards) are areas where the Vegetation is dominated by Grasses ( Poaceae) and other Herbaceous (non-woody A Semi-arid climate or steppe climate generally describes climatic regions that receive low annual Rainfall (250-500 mm or 10-20 in The majority are herbivorous, with the exception of centipedes, which are chiefly nocturnal predators. Herbivory is a form of Predation in which an Organism, known as a herbivore, consumes principally Autotrophs ref name=Campbell>Campbell Centipedes (from Latin prefix centi-, "hundred" and Greek ποδός podos, " Foot " are Pauropodans and symphylans are small, sometimes microscopic animals that resemble centipedes superficially and live in soils. Symphylans, also known as garden centipedes or glasshouse symphylans, are Soil -dwelling Arthropods of the class Symphyla Soil, often typeset as SOiL, is a four piece rock band from Chicago Illinois United States founded by Shaun Glass Tom Schofield Tim King and Adam Zadel Millipedes differ from the other groups in having their body segments fused into pairs, giving the appearance that each segment bears two pairs of legs, while the other three groups have a single pair of legs on each body segment. Segmentation in biology refers to the division of some Metazoan bodies and Plant body plans into a series of semi-repetitive segments and the question of The arthropod leg is a form of jointed Appendage of Arthropods usually used for Walking.
Although not generally considered dangerous to humans, many myriapods produce noxious secretions (often containing benzoquinones) which can cause temporary blistering and discolouration of the skin [5]. Secretion is the process of segregating elaborating and releasing chemicals from a cell, or a secreted Chemical substance or amount of substance A blister is a small pocket of fluid within the upper layers of the skin
The fossil record of myriapods reaches back into the late Silurian, although molecular evidence suggests a diversification in the Cambrian Period [6], and Cambrian fossils exist which resemble myriapods [2]. FOSSIL is a standard protocol for allowing serial communication for Telecommunications programs under the DOS Operating system. The Silurian is a geologic period and system that extends from the end of the Ordovician period about 443 The Cambrian is a geologic period and system that began about Ma (million years ago at the end of the Proterozoic eon and ended about Ma with
Contents |
Classification
There has been much debate as to which arthropod group is most closely related to the Myriapoda. Under the Mandibulata hypothesis, Myriapoda is the sister taxon to Pancrustacea, a group comprising the Crustacea and Hexapoda. In arthropods the mandible is either of a pair of Arthropod Mouthparts used for biting cutting and holding food Cladistics is the hierarchical classification of Species based on evolutionary ancestry Pancrustacea is a proposed Taxon, comprising all Crustaceans and hexapods Structure of crustaceans As Arthropods crustaceans have a stiff Exoskeleton, which must be shed to allow the animal to grow ( Ecdysis or molting The subphylum Hexapoda (from the Greek for six legs) constitutes the largest (in terms of number of species grouping of Arthropods and includes the Under the Atelocerata hypothesis, Hexapoda is the closest, whereas under the Paradoxopoda hypothesis, Chelicerata is the closest. The Atelocerata (Heymons 1901 is an obsolete Monophyletic group formed by the Hexapoda + Myriapoda, and sister group of the Eucrustacea, if The subphylum Hexapoda (from the Greek for six legs) constitutes the largest (in terms of number of species grouping of Arthropods and includes the The subphylum Chelicerata constitutes one of the major subdivisions of the phylum Arthropoda including the Arachnids Horseshoe crabs and related forms This last hypothesis, although supported by few, if any, morphological characters, is supported by a number of molecular studies [7]. Molecular biology is the study of Biology at a molecular level
There are four classes of extant myriapods, Chilopoda (centipedes), Diplopoda, Pauropoda and Symphyla, containing a total of around 12,000 species [8]. Tachypodoiulus niger, known variously as the white-legged snake millipede or the black millipede, is a European Species of Centipedes (from Latin prefix centi-, "hundred" and Greek ποδός podos, " Foot " are Millipedes (Class Diplopoda, previously also known as Chilognatha are Arthropods that have two pairs of legs per segment (except for the first segment behind Pauropods are small pale Centipede -like Arthropods. They form the order Pauropodina, belonging to the monotypic class Symphylans, also known as garden centipedes or glasshouse symphylans, are Soil -dwelling Arthropods of the class Symphyla In Biology, a species is one of the basic units of Biological classification and a Taxonomic rank. While each of these groups of myriapods is believed to be monophyletic, relationships among them are less certain [9]. A clade is a taxonomic group comprising a single Common ancestor and all the descendants of that ancestor
Centipedes
Centipedes make up the order Chilopoda. Centipedes (from Latin prefix centi-, "hundred" and Greek ποδός podos, " Foot " are Centipedes (from Latin prefix centi-, "hundred" and Greek ποδός podos, " Foot " are They are fast, predatory and venomous, hunting mostly at night. This article is about the class of Biotoxins For other uses see Venom (disambiguation and Venomous (disambiguation. There are around 3,300 species [8], ranging from the diminutive Nannarup hoffmani (less than half an inch in length, c. Inches redirects here To see the Les Savy Fav album see Inches. 12 mm) [10] to the giant Scolopendra gigantea, which may exceed 30 cm (12 in). The Millimetre ( American spelling: millimeter, symbol mm) is a unit of Length in the Metric system, equal to Scolopendra gigantea, the Peruvian giant yellowleg centipede or Amazonian giant centipede, is the largest representative of the genus Scolopendra A centimetre ( American spelling: centimeter, symbol cm) is a unit of Length in the Metric system, equal to one hundredth
Millipedes
Most millipedes are slower than centipedes, and feed on leaf litter and detritus. Millipedes (Class Diplopoda, previously also known as Chilognatha are Arthropods that have two pairs of legs per segment (except for the first segment behind Millipedes (Class Diplopoda, previously also known as Chilognatha are Arthropods that have two pairs of legs per segment (except for the first segment behind Plant litter (sometimes called leaf litter or tree litter) is dead Plant material such as leaves, Bark, and Twigs In Biology, detritus is non-living particulate organic material (as opposed to dissolved organic material They are distinguished by the fusion of each pair of body segments into a single unit, giving the appearance of having two pairs of legs per segment. Segmentation in biology refers to the division of some Metazoan bodies and Plant body plans into a series of semi-repetitive segments and the question of Around 8,000 species have been described, which may represent less than a tenth of the true global millipede diversity [8]. One species, Illacme plenipes has the greatest number of legs of any animal, with 750 [3]. Illacme plenipes is a Millipede found in the central region of the U Pill millipedes are much shorter, and are capable of rolling up into a ball, like pillbugs. Pill millipedes make up two orders of Millipedes often grouped together into a single Superorder, Oniscus. Armadillidiidae is a family of woodlice, a terrestrial Crustacean group in the order Isopoda.
Symphyla
About 200 species of symphylans are known worldwide [8]. Symphylans, also known as garden centipedes or glasshouse symphylans, are Soil -dwelling Arthropods of the class Symphyla Symphylans, also known as garden centipedes or glasshouse symphylans, are Soil -dwelling Arthropods of the class Symphyla They resemble centipedes but are smaller and translucent. Many spend their lives as soil infauna, but some live arboreally. Fauna is all of the Animal life of any particular region or time Arboreal is a word meaning "related to or resembling trees" Juveniles have six pairs of legs, but, over a lifetime of several years, add an additional pair at each moult so that the adult instar has twelve pairs of legs [11]. Ecdysis is the Molting of the Cuticula in Arthropods and related groups ( Ecdysozoa) An instar is a developmental stage of Arthropods, such as Insects, between each moult ( ecdysis) until sexual maturity is reached
Pauropoda
Pauropoda is another small group of small myriapods. Pauropods are small pale Centipede -like Arthropods. They form the order Pauropodina, belonging to the monotypic class Pauropods are small pale Centipede -like Arthropods. They form the order Pauropodina, belonging to the monotypic class They are typically 0. 5–2. 0 mm long and live in the soil on all continents except Antarctica [12]. Over 700 species have been described [8]. They are believed to be the sister group to millipedes, and have the dorsal tergites fused across pairs of segments, similar to the more complete fusion of segments seen in millipedes [13]. Cladistics is the hierarchical classification of Species based on evolutionary ancestry A tergum (plural terga, associated adjective tergal) is the dorsal portion of an Arthropod segment other than the head
References
- ^ Myriapoda (TSN 563885). Integrated Taxonomic Information System. Integrated Taxonomic Information System ( ITIS) is a partnership designed to provide consistent and reliable information on the Taxonomy of biological Species
- ^ a b c Ben Waggoner (1996-02-21). Year 1996 ( MCMXCVI) was a Leap year starting on Monday (link will display full 1996 Gregorian calendar) Events 362 - Athanasius returns to Alexandria. 1245 - Thomas, the first known Bishop of Finland Introduction to the Myriapoda. University of California, Berkeley. The University of California Berkeley (also referred to as Cal, Berkeley and UC Berkeley) is a major research university located in Berkeley
- ^ a b Paul E. Marek & Jason E. Bond (2006-06-08). Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Events 68 - The Roman Senate accepts emperor Galba. 536 - St Silverius becomes Pope (probable Biodiversity hotspots: rediscovery of the world's leggiest animal. Nature 441: 707. Nature is a prominent Scientific journal, first published on 4 November 1869 doi:10.1038/441707a. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document.
- ^ Myriapod. Britannica Concise Encyclopedia.
- ^ Strange and Unusual Millipedes. herper. com. Retrieved on 2007-07-02. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 310 - Pope Miltiades is elected 626 - In fear of assassination Li Shimin ambushes and kills his rival
- ^ Markus Friedrich & Diethard Tautz (2002). Ribosomal DNA phylogeny of the major extant arthropod classes and the evolution of myriapods. Nature 376: 165–167. Nature is a prominent Scientific journal, first published on 4 November 1869 doi:. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document.
- ^ Alexandre Hassanin (2006). Phylogeny of Arthropoda inferred from mitochondrial sequences: strategies for limiting the misleading effects of multiple changes in pattern and rates of substitution. Molecular Phylogenetics and Evolution 38: 100–116. Molecular Phylogenetics and Evolution is a prominent Scientific journal, popular mostly among Evolutionary biologists Its goal is to make a forum to doi:. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document.
- ^ a b c d e A. D. Chapman (2005). Numbers of Living Species in Australia and the World. Department of the Environment and Heritage. The Department of the Environment Water Heritage and the Arts (DEWHA formerly the Department of the Environment and Water Resources (DEWR is a department of the Australian ISBN 0-642-56850-2.
- ^ Jerome C. Regiera, Heather M. Wilson & Jeffrey W. Shultz (2005). Phylogenetic analysis of Myriapoda using three nuclear protein-coding genes. Molecular Phylogenetics and Evolution 34: 147–158. Molecular Phylogenetics and Evolution is a prominent Scientific journal, popular mostly among Evolutionary biologists Its goal is to make a forum to doi:10.1016/j.ympev.2004.09.005. A digital object identifier ( DOI) is a permanent identifier given to an Electronic document.
- ^ "Central Park survey finds new centipede", American Museum of Natural History, 2003-01-29. The American Museum of Natural History ( AMNH) located on the Upper West Side, Manhattan, New York, USA is one of the largest and most Year 2003 ( MMIII) was a Common year starting on Wednesday of the Gregorian calendar. Events 904 - Sergius III comes out of retirement to take over the papacy from the deposed Antipope Christopher.
- ^ Garden Symphylans. Integrated Pest Management on Peppermint-IPMP3. 0. Oregon State University. Oregon State University ( OSU) is a Coeducational public Research[[ university]] located in Corvallis, Oregon, United Retrieved on 2007-07-02. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 310 - Pope Miltiades is elected 626 - In fear of assassination Li Shimin ambushes and kills his rival
- ^ Pauropods: Pauropoda. Insects and Spiders Scientific Reference. Retrieved on 2007-07-02. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 310 - Pope Miltiades is elected 626 - In fear of assassination Li Shimin ambushes and kills his rival
- ^ David Kendall (2005-06-06). Year 2005 ( MMV) was a Common year starting on Saturday (link displays full calendar of the Gregorian calendar. Events 1508 - Maximilian I Holy Roman Emperor, is defeated in Friulia by Venetian forces; he is forced to sign a three-year Pauropods & Symphylids. Kendall Bioresearch.
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic