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Brachionus Rotundiformis
''Brachionus'' is a genus of planktonic rotifers occurring in freshwater, alkaline and brackish water. Species Species included in ''Brachionus'' include: * '' Brachionus amsterdamensis'' De Smet, 2001 * '' Brachionus angularis'' Gosse, 1851 * '' Brachionus asplanchnoides'' Charin, 1947 * ''Brachionus calyciflorus'' Pallas, 1766 * '' Brachionus diversicornis'' (Daday, 1883) * '' Brachionus havanaensis'' Rousselet, 1911 * '' Brachionus ibericus'' Ciros-Peréz, Gómez & Serra, 2001 * '' Brachionus leydigii'' Cohn, 1862 * '' Brachionus manjavacas'' Fontaneto, Giordani, Melone & Serra, 2007 * ''Brachionus nilsoni'' Ahlstrom * ''Brachionus plicatilis'' Müller, 1786 * '' Brachionus quadridentatus'' Hermann, 1783 * '' Brachionus rotundiformis'' Tschugunoff, 1921 * '' Brachionus rubens'' Ehrenberg, 1838 * '' Brachionus urceolaris'' Müller, 1773 * '' Brachionus variabilis'' Hempel, 1896 Use Rotifers such as ''Brachionus calyciflorus'' are favored test animals in aquatic toxicology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Simon Pallas
Peter Simon Pallas FRS FRSE (22 September 1741 – 8 September 1811) was a Prussian zoologist and botanist who worked in Russia between 1767 and 1810. Life and work Peter Simon Pallas was born in Berlin, the son of Professor of Surgery Simon Pallas. He studied with private tutors and took an interest in natural history, later attending the University of Halle and the University of Göttingen. In 1760, he moved to the University of Leiden and passed his doctor's degree at the age of 19. Pallas travelled throughout the Netherlands and to London, improving his medical and surgical knowledge. He then settled at The Hague, and his new system of animal classification was praised by Georges Cuvier. Pallas wrote ''Miscellanea Zoologica'' (1766), which included descriptions of several vertebrates new to science which he had discovered in the Dutch museum collections. A planned voyage to southern Africa and the East Indies fell through when his father recalled him to Berlin. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachionus Ibericus
''Brachionus'' is a genus of planktonic rotifers occurring in freshwater, alkaline and brackish water. Species Species included in ''Brachionus'' include: * '' Brachionus amsterdamensis'' De Smet, 2001 * '' Brachionus angularis'' Gosse, 1851 * '' Brachionus asplanchnoides'' Charin, 1947 * ''Brachionus calyciflorus'' Pallas, 1766 * '' Brachionus diversicornis'' (Daday, 1883) * '' Brachionus havanaensis'' Rousselet, 1911 * '' Brachionus ibericus'' Ciros-Peréz, Gómez & Serra, 2001 * '' Brachionus leydigii'' Cohn, 1862 * '' Brachionus manjavacas'' Fontaneto, Giordani, Melone & Serra, 2007 * ''Brachionus nilsoni'' Ahlstrom * ''Brachionus plicatilis'' Müller, 1786 * '' Brachionus quadridentatus'' Hermann, 1783 * ''Brachionus rotundiformis'' Tschugunoff, 1921 * '' Brachionus rubens'' Ehrenberg, 1838 * '' Brachionus urceolaris'' Müller, 1773 * '' Brachionus variabilis'' Hempel, 1896 Use Rotifers such as ''Brachionus calyciflorus'' are favored test animals in aquatic toxicology b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptic Species Complex
In biology, a species complex is a group of closely related organisms that are so similar in appearance and other features that the boundaries between them are often unclear. The taxa in the complex may be able to hybridize readily with each other, further blurring any distinctions. Terms that are sometimes used synonymously but have more precise meanings are cryptic species for two or more species hidden under one species name, sibling species for two (or more) species that are each other's closest relative, and species flock for a group of closely related species that live in the same habitat. As informal taxonomic ranks, species group, species aggregate, macrospecies, and superspecies are also in use. Two or more taxa that were once considered conspecific (of the same species) may later be subdivided into infraspecific taxa (taxa within a species, such as bacterial strains or plant varieties), that is complex but it is not a species complex. A species complex is in most ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mixis
''Pleurothallis'' is a genus of orchids commonly called bonnet orchids. The genus name is derived from the Greek word , meaning "riblike branches". This refers to the rib-like stems of many species. The genus is often abbreviated as "Pths" in horticultural trade. This was a huge genus, which used to contain more than 1,200 species - the second largest in the Orchidaceae after ''Bulbophyllum''. In 2004, it decreased by more than half when many species were moved into new genera. Distribution ''Pleurothallis'' is a completely New World group, widespread across much of Mexico, Central America, South America and the West Indies. Flora of North America lists one species in Florida ''(P. gelina)'' but this has now been transferred to a different genus, '' Stelis''. The center of diversity of the genus is in the high Andes, especially in the chain of cloud forests in Colombia. ''Pleurothallis'' grows in dry or wet, tropical or temperate climates. Description As a group they show a hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parthenogenesis
Parthenogenesis (; from the Greek grc, παρθένος, translit=parthénos, lit=virgin, label=none + grc, γένεσις, translit=génesis, lit=creation, label=none) is a natural form of asexual reproduction in which growth and development of embryos occur in a gamete (egg or sperm) without combining with another gamete (e.g., egg and sperm fusing). In animals, parthenogenesis means development of an embryo from an unfertilized egg cell. In plants, parthenogenesis is a component process of apomixis. In algae, parthenogenesis can mean the development of an embryo from either an individual sperm or an individual egg. Parthenogenesis occurs naturally in some plants, algae, invertebrate animal species (including nematodes, some tardigrades, water fleas, some scorpions, aphids, some mites, some bees, some Phasmatodea and parasitic wasps) and a few vertebrates (such as some fish, amphibians, reptiles and birds). This type of reproduction has been induced artificially i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachionus Variabilis
''Brachionus'' is a genus of planktonic rotifers occurring in freshwater, alkaline and brackish water. Species Species included in ''Brachionus'' include: * '' Brachionus amsterdamensis'' De Smet, 2001 * '' Brachionus angularis'' Gosse, 1851 * '' Brachionus asplanchnoides'' Charin, 1947 * ''Brachionus calyciflorus'' Pallas, 1766 * '' Brachionus diversicornis'' (Daday, 1883) * '' Brachionus havanaensis'' Rousselet, 1911 * ''Brachionus ibericus'' Ciros-Peréz, Gómez & Serra, 2001 * '' Brachionus leydigii'' Cohn, 1862 * '' Brachionus manjavacas'' Fontaneto, Giordani, Melone & Serra, 2007 * ''Brachionus nilsoni'' Ahlstrom * ''Brachionus plicatilis'' Müller, 1786 * '' Brachionus quadridentatus'' Hermann, 1783 * ''Brachionus rotundiformis'' Tschugunoff, 1921 * '' Brachionus rubens'' Ehrenberg, 1838 * '' Brachionus urceolaris'' Müller, 1773 * '' Brachionus variabilis'' Hempel, 1896 Use Rotifers such as ''Brachionus calyciflorus'' are favored test animals in aquatic toxicology be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachionus Urceolaris
''Brachionus'' is a genus of planktonic rotifers occurring in freshwater, alkaline and brackish water. Species Species included in ''Brachionus'' include: * '' Brachionus amsterdamensis'' De Smet, 2001 * '' Brachionus angularis'' Gosse, 1851 * '' Brachionus asplanchnoides'' Charin, 1947 * ''Brachionus calyciflorus'' Pallas, 1766 * '' Brachionus diversicornis'' (Daday, 1883) * '' Brachionus havanaensis'' Rousselet, 1911 * ''Brachionus ibericus'' Ciros-Peréz, Gómez & Serra, 2001 * '' Brachionus leydigii'' Cohn, 1862 * '' Brachionus manjavacas'' Fontaneto, Giordani, Melone & Serra, 2007 * ''Brachionus nilsoni'' Ahlstrom * ''Brachionus plicatilis'' Müller, 1786 * '' Brachionus quadridentatus'' Hermann, 1783 * ''Brachionus rotundiformis'' Tschugunoff, 1921 * '' Brachionus rubens'' Ehrenberg, 1838 * '' Brachionus urceolaris'' Müller, 1773 * ''Brachionus variabilis'' Hempel, 1896 Use Rotifers such as ''Brachionus calyciflorus'' are favored test animals in aquatic toxicology bec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachionus Rubens
''Brachionus'' is a genus of planktonic rotifers occurring in freshwater, alkaline and brackish water. Species Species included in ''Brachionus'' include: * '' Brachionus amsterdamensis'' De Smet, 2001 * '' Brachionus angularis'' Gosse, 1851 * '' Brachionus asplanchnoides'' Charin, 1947 * ''Brachionus calyciflorus'' Pallas, 1766 * '' Brachionus diversicornis'' (Daday, 1883) * '' Brachionus havanaensis'' Rousselet, 1911 * ''Brachionus ibericus'' Ciros-Peréz, Gómez & Serra, 2001 * '' Brachionus leydigii'' Cohn, 1862 * '' Brachionus manjavacas'' Fontaneto, Giordani, Melone & Serra, 2007 * ''Brachionus nilsoni'' Ahlstrom * ''Brachionus plicatilis'' Müller, 1786 * '' Brachionus quadridentatus'' Hermann, 1783 * ''Brachionus rotundiformis'' Tschugunoff, 1921 * '' Brachionus rubens'' Ehrenberg, 1838 * ''Brachionus urceolaris'' Müller, 1773 * ''Brachionus variabilis'' Hempel, 1896 Use Rotifers such as ''Brachionus calyciflorus'' are favored test animals in aquatic toxicology beca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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