- Bdelloidea
For the mite superfamily Bdelloidea mites Automatic taxobox taxon Bdelloida name Bdelloids image Bdelloid.JPG image caption Scanning electron micrographs showing morphological variation of bdelloid rotifers and their jaws. parent authority Hudson, 1884 display children 1 Bdelloidea pron en d l di is a class of rotifer s found in fresh water and moist soil. Bdelloids typically have a well developed corona, divided into two parts, on a retractable head. They may move by swimming or crawling. The latter commonly involves taking alternate steps with the head and tail, as do certain leech es, which gives the group their name Greek language Greek or bdella , meaning leech . Bdelloids have been of interest to those interested in the evolution of sex evolutionary role of sexual reproduction , because it has disappeared entirely from the group males are not present within the species, and females reproduce exclusively by parthenogenesis . Each individual has paired gonad s. Despite the fact that they have been asexual for millions of years, they have diversified into more than 300 species and are fairly similar to other sexually reproducting rotifer species. Bdelloids respond to environmental stresses by entering a state of dormancy known as anhydrobiosis . This dormancy form enables the organism to rapidly dehydrate itself. The Bdelloid will remain in this Microbial cyst cysted state until optimal environmental conditions re occur at which point they will rehydrate and become active within hours. Diapause is the ability of the organism to produce offspring in a dormant and unhatched state Citation needed date October 2009 . Hatching of the young will only occur when conditions are at their most favourable. These forms of dormancy are also known as cryptobiosis or quiescence. When these unusual creatures spring from hibernation, they undergo a fascinating and possibly ... Rotifers cs Pijavenky de Bdelloida fr Bdelloidea ko pt Bdelloidea sk Bdelloidea ... more details
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- Bdelloidea (disambiguation)
Bdelloidea may refer to Bdelloidea , a class of rotifers found in fresh water and moist soil Bdelloidea mites , a superfamily of mites disambiguation ... more details
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- Bdelloidea (mites)
Taxobox name Bdelloidea regnum Animal ia phylum Arthropod a classis Arachnid a ordo Trombidiformes subordo Prostigmata unranked superfamilia Eupodides superfamilia Bdelloidea subdivision ranks Families subdivision Bdelloidea is a superfamily biology superfamily of mite s. ref cite book publisher Texas Tech University Press edition 3rd year 2009 isbn 9780896726208 editor Gerald W. Krantz & D. E. Walter title A Manual of Acarology ref References reflist Acari Category Trombidiformes Trombidiformes stub ... more details
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- Habrotrocha rosa
Taxobox image Habrotrocha rosa 1.jpg image caption regnum Animal ia phylum Rotifer a classis Bdelloidea ordo Bdelloidea Bdelloida familia Habrotrochidae genus Habrotrocha species H. rosa binomial Habrotrocha rosa binomial authority Donner, 1949 Habrotrocha rosa is a Bdelloidea bdelloid rotifer that has been found in leaf litter, soil, and moss in Europe and New Zealand and also in North America within the pitchers of Sarracenia purpurea , the purple pitcher plant. It is one of many species that make up the inquiline community that thrives within the water retaining pitcher shaped leaves of S. purpurea . ref Bateman, L. E. 1987 . A bdelloid rotifer living as an inquiline in leaves of the pitcher plant, Sarracenia purpurea . Hydrobiologia , 147 129 133. ref References Reflist rotifer stub Category Rotifers Category Sarracenia purpurea inquilines ... more details
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- File:Bdelloidea2 w.jpg
Summary Information Description Frontal view of a bdelloidea s corona. Source I created this work entirely by myself. Date Ja. 21st 2006 Author Dami n H. Zanette other versions Licensing PD self date December 2006 ... more details
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- File:20090411-005422 Rotifer.jpg
A Bdelloidea bdelloid rotifer . 10× objective, 15× eyepiece each numbered tick is 122 µ M. Summary Information Description A Bdelloid Rotifer Source I created this work entirely by myself. Date 11 April 2009 00 54 22 PDT Author Bob Blaylock Objective 10X Eyepiece 15X NumberedTick 122 micrometers PixelSize 0.407 micrometers. Licensing self cc by sa 3.0 ... more details
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- File:20090920 213234 BdelloidRotifer.jpg
A Bdelloidea bdelloid rotifer . 10× objective, 15× eyepiece each numbered tick is 122 µ M. Summary Information Description A bdelloid rotifer. Source I User Bob Blaylock Bob Blaylock User talk Bob Blaylock talk created this work entirely by myself. Date 20 September 2009 21 32 PDT Author User Bob Blaylock Bob Blaylock User talk Bob Blaylock talk Objective 10X Eyepiece 15X Tick 122 micrometers Pixel 0.407 micrometers Licensing self cc by sa 3.0 GFDL migration redundant ... more details
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- Rotaria
Other uses Rot ria disambiguation Mergeto Rotifer discuss Talk Rotaria Merger proposal date February 2009 Taxobox image PLoS Rotaria.gif image caption A R. neptunia , lateral view B R. macrura , ventral view C R. tardigrada , dorsal view D R. sordida , lateral view and E mouthparts trophi of R. tardigrada name Rotaria regnum Animal ia phylum Rotifer a classis Bdelloidea familia Philodinidae genus Rotaria genus authority Scopoli, 1777 subdivision ranks Species subdivision Rotaria citrina br Rotaria macrura br Rotaria magnacalcarata br Rotaria neptunia br Rotaria neptunoida br Rotaria rotatoria br Rotaria socialis br Rotaria sordida br Rotaria tardigrada br Rotaria sp. CWB 2005 ref NCBI. http www.ncbi.nlm.nih.gov Taxonomy Browser wwwtax.cgi?id 231623 Rotaria ref Rotaria is a genus of Asexual reproduction asexual microorganism known as a Bdelloidea bdelloid rotifer . Analysis published in 2007 of morphology and DNA sequence data of species form the genus confirmed that despite their asexual mechanism of reproduction , two fundamental properties of species , evolution independent evolution and ecological divergence by natural selection occurred. This demonstrates that sex is not a necessary condition for speciation. ref http biology.plosjournals.org perlserv ?request get document&doi 10.1371 journal.pbio.0050087 Independently Evolving Species in Asexual Bdelloid Rotifers Fontaneto D, Herniou EA, Boschetti C, Caprioli M, Melone G, et al. PLoS Biology Vol. 5, No. 4, e87 doi 10.1371 journal.pbio.0050087 ref References wikispecies references Category Rotifers ... more details
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- List of animal classes
The following is a list of the class biology classes in each phylum of the kingdom Animal ia. TOCright Acanthocephala Archiacanthocephala Eoacanthocephala Palaeacanthocephala Acoelomorpha Acoelomorpha Annelida Branchiobdellae Hirudinea Oligochaeta Polychaeta Arthropoda Chelicerata Arachnida Merostomata Pycnogonida Crustacea Branchiopoda Cephalocarida Malacostraca Maxillopoda Ostracoda Remipedia Hexapoda Entognatha Insecta Myriapoda Chilopoda Diplopoda Pauropoda Symphyla Brachiopoda Craniforma Lingulata Rhynchonellata Bryozoa Gymnolaemata Phylactolaemata Stenolaemata Chaetognatha Archisagittoidea Sagittoidea Chordata Cephalochordata Cephalochordata Urochordata Appendicularia Ascidiacea Thaliacea Vertebrata Agnatha Cephalaspidomorphi Myxini Gnathostomata Amphibia Aves Chondrichthyes Mammalia Osteichthyes Reptilia Cnidaria Anthozoa Cubozoa Hydrozoa Scyphozoa Polypodiozoa Ctenophora Tentaculata Nuda Cycliophora Symbion Eucycliophora Echinodermata Crinozoa Crinoidea Asterozoa Asteroidea Ophiuroidea Concentricycloidea Echinozoa Echinoidea Holothuroidea Echiura Echiuroidea Heteromyota Xenopneusta Entoprocta Loxosomatida Pedicellinida Urnatellida Gastrotricha Macrodasyda Chaetonotida Gnathostomulida Filospermoidea Bursovaginoidea Hemichordata Enteropneusta Pterobranchia Kinorhyncha Cyclorhagida Homalorhagida Loricifera Loricifera Micrognathozoa Micrognathozoa Mollusca Aplacophora Bivalvia Cephalopoda Gastropoda Monoplacophora Polyplacophora Scaphopoda Nematoda Adenophorea Secernentea Nematomorpha Gordioidea Nectonematoida Nemertea Anopla Enopla Onychophora Onychophora Orthonectida Orthonectida Phoronida Phoronida Placozoa Trichoplacoidea Platyhelminthes Cestoda Monogenea Trematoda Turbellaria Polycephalomorpha Polycephalomorpha Porifera Calcarea Demospongiae Hexactinellida Priapulida Halicryptomorpha Priapulimorpha Seticoronaria Rhombozoa Dicyemida Heterocyemida Rotifera Bdelloidea Monogononta Seisonidea Sipuncula Phascolosomatidea Sipunculidea Tardigrada Eutardigrada Heter ... more details
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- Prostigmata
disputed Superfamily Raphignathoidea Superfamily Tetranychoidea Eupodides Superfamily Bdelloidea mites Bdelloidea Superfamily Eupodoidea Superfamily Eriophyoidea Superfamily Halacaroidea Superfamily ... more details
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- Rotifer
the Bdelloidea Bdelloid Rotifer in 1696 as an animal like a large maggot which could contract itself ... , Digononta , Bdelloidea , and Seisonidea . The largest group is the Monogononta, with about 1500 species, followed by the Bdelloidea, with about 350 species. There are only two known species of Seisonidea ... more details
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- Asexual reproduction
exclusively asexually, and all individuals in the class Bdelloidea are females. Asexuality evolved ... more details
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- Microevolution
of larger scale transfers are the eukaryotic Bdelloidea bdelloid rotifers , which appear to have ... more details
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- Population genetics
An example of larger scale transfers are the eukaryotic Bdelloidea bdelloid rotifers , which appear ... more details
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- Evolution of sexual reproduction
species which have secondarily lost this feature, such as Bdelloidea and some parthenocarpic ... more details
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- Evolution
About evolution in biology pp semi protected small yes seeintro Template Evolutionary biology Evolution also known as biological or organic evolution is the change over time in one or more heritability inherited trait biology traits found in populations of organisms . ref name Futuyma cite book last Futuyma first Douglas J. authorlink Douglas J. Futuyma year 2005 title Evolution publisher Sinauer Associates, Inc location Sunderland, Massachusetts isbn 0 87893 187 2 ref Inherited traits are particular distinguishing characteristics, including Anatomy anatomical , Biochemistry biochemical or behaviour al characteristics, that are passed on from one generation to the next. Phenotypic expressions of these traits can be influenced by gene environment interactions . Evolution may occur when there is Genetic diversity variation of inherited traits within a population. The major sources of such variation are mutation , genetic recombination and gene flow . ref name pmid10097118 Cite journal last1 Jain first1 R. last2 Rivera first2 M.C. last3 Lake first3 J.A. title Horizontal gene transfer among genomes the complexity hypothesis. journal Proc Natl Acad Sci U S A volume 96 issue 7 pages 3801 6 year 1999 pmid 10097118 doi 10.1073 pnas.96.7.3801 ref harv pmc 22375 ref ref cite journal author Richardson, Aaron O. and Jeffrey D. Palmer year 2007 title Horizontal gene transfer in plants journal Journal of Experimental Botany volume 58 pages 1 9 url http jxb.oxfordjournals.org content early 2006 10 09 jxb.erl148.full.pdf accessdate 2011 01 31 doi 10.1093 jxb erl148 pmid 17030541 issue 1 ref harv ref ref cite book last Margulis first Lynn year 1998 title The symbiotic planet a new look at evolution publisher Weidenfeld & Nicolson, London isbn 0 465 07271 2 ref ref cite book last Sapp first J. year 1994 title Evolution by association a history of symbiosis publisher Oxford University Press, UK isbn 0 19 508821 2 ref Evolution has led to the diversification of all living organisms, wh ... more details
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- List of Greek words with English derivatives
polytonic bdell leech bdelloidea polytonic biblion polytonic biblio book bible ... more details
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