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Quadraceps
''Quadraceps'' is a genus of louse. They are ectoparasites of birds in the order Charadriiformes, and the genus was circumscribed in 1939 by Theresa Clay and Richard Meinertzhagen. Infestation is believed to increase the rate of nest desertion, lowers the success rate of baby birds hatching, reduces the number of birds in the clutch, and cause birds to attract fewer mates. All in all, the survival of the nestlings is lowered drastically. Species Species include: * ''Quadraceps charadrii'' * ''Quadraceps hopkinsi'' * ''Quadraceps neoaustralis'' * ''Quadraceps separatus ''Quadraceps'' is a genus of louse. They are ectoparasites of birds in the order Charadriiformes, and the genus was circumscribed in 1939 by Theresa Clay Theresa Rachel "Tess" Clay (7 February 1911 – 17 March 1995) was an English entomolo ...'' References Lice Ectoparasites Parasites of birds {{louse-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quadraceps Separatus
''Quadraceps'' is a genus of louse. They are ectoparasites of birds in the order Charadriiformes, and the genus was circumscribed in 1939 by Theresa Clay Theresa Rachel "Tess" Clay (7 February 1911 – 17 March 1995) was an English entomologist. She was introduced to zoology by her older relative, the ornithologist and adventurer Richard Meinertzhagen, with whom she had an unusually close relati ... and Richard Meinertzhagen. Infestation is believed to increase the rate of nest desertion, lowers the success rate of baby birds hatching, reduces the number of birds in the clutch, and cause birds to attract fewer mates. All in all, the survival of the nestlings is lowered drastically. Species Species include: * '' Quadraceps charadrii'' * '' Quadraceps hopkinsi'' * '' Quadraceps neoaustralis'' * '' Quadraceps separatus'' References Lice Ectoparasites Parasites of birds {{louse-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theresa Clay
Theresa Rachel "Tess" Clay (7 February 1911 – 17 March 1995) was an English entomologist. She was introduced to zoology by her older relative, the ornithologist and adventurer Richard Meinertzhagen, with whom she had an unusually close relationship. She became the world's expert on Mallophaga, or chewing lice; however, her work is cast into question by her suspected role in Meinertzhagen's many scientific frauds. During and immediately after World War II, she worked with Victor Rothschild at MI5. Early life and family Clay was born on 7 February 1911, to Sir George Felix Neville Clay, 5th Baronet, one of the Clay Baronets, and Rachel Hobhouse Clay. Clay had four siblings, older sisters Margaret and Janet, older brother Henry, and younger brother Anthony. Clay's family lived at No. 18 Kensington Park Gardens, Notting Hill, London, and she attended at St Paul's Girls' School. Relationship with Richard Meinertzhagen When Clay was eleven years old, her first cousin once-rem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Meinertzhagen
Colonel Richard Meinertzhagen, CBE, DSO (3 March 1878 – 17 June 1967) was a British soldier, intelligence officer, and ornithologist. He had a decorated military career spanning Africa and the Middle East. He was credited with creating and executing the Haversack Ruse in October 1917, during the Sinai and Palestine Campaign of the First World War, but his participation in this matter has since been refuted. While early biographies lionized Meinertzhagen as a master of military strategy and espionage, later works such as ''The Meinertzhagen Mystery'' present him as a fraud for fabricating stories of his feats and speculated he murdered his wife (in addition to extra-judicial killings while in the colonial service). The discovery of stolen museum bird specimens resubmitted as original discoveries has raised serious doubts on the veracity of many of his ornithological records. Background and youth Meinertzhagen was born into a wealthy, socially connected British family. Hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Denny (entomologist)
Henry Denny (1803–1871) was an English museum curator and entomologist, known as an authority on parasites. Life Denny was the first salaried curator of the Leeds Museum, then the museum of the Leeds Literary and Philosophical Society, appointed in 1825. He held that post for 45 years. Also in 1825, he published a monograph on the British species of ant-loving beetles in the genus ''Pselaphus''. The British Association for the Advancement of Science The British Science Association (BSA) is a charity and learned society founded in 1831 to aid in the promotion and development of science. Until 2009 it was known as the British Association for the Advancement of Science (BA). The current Chie ... in 1842 made a grant to Denny for the study of British Anoplura; William Kirby tried to bring him in as illustrator of his ''Introduction to Entomology'', though without success. A good friend of Charles Darwin, Henry Denny would be included in his treatise "The Descent of Man, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louse
Louse ( : lice) is the common name for any member of the clade Phthiraptera, which contains nearly 5,000 species of wingless parasitic insects. Phthiraptera has variously been recognized as an order, infraorder, or a parvorder, as a result of developments in phylogenetic research. Lice are obligate parasites, living externally on warm-blooded hosts which include every species of bird and mammal, except for monotremes, pangolins, and bats. Lice are vectors of diseases such as typhus. Chewing lice live among the hairs or feathers of their host and feed on skin and debris, while sucking lice pierce the host's skin and feed on blood and other secretions. They usually spend their whole life on a single host, cementing their eggs, called nits, to hairs or feathers. The eggs hatch into nymphs, which moult three times before becoming fully grown, a process that takes about four weeks. Genetic evidence indicates that lice are a highly modified lineage of Psocoptera (now call ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ectoparasites
Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has characterised parasites as "predators that eat prey in units of less than one". Parasites include single-celled protozoans such as the agents of malaria, sleeping sickness, and amoebic dysentery; animals such as hookworms, lice, mosquitoes, and vampire bats; fungi such as honey fungus and the agents of ringworm; and plants such as mistletoe, dodder, and the broomrapes. There are six major parasitic strategies of exploitation of animal hosts, namely parasitic castration, directly transmitted parasitism (by contact), trophicallytransmitted parasitism (by being eaten), vector-transmitted parasitism, parasitoidism, and micropredation. One major axis of classification concerns invasiveness: an endoparasite lives inside the host's bod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charadriiformes
Charadriiformes (, from '' Charadrius'', the type genus of family Charadriidae) is a diverse order of small to medium-large birds. It includes about 390 species and has members in all parts of the world. Most charadriiform birds live near water and eat invertebrates or other small animals; however, some are pelagic (seabirds), others frequent deserts, and a few are found in dense forest. Members of this group can also collectively be referred to as shorebirds. Taxonomy, systematics and evolution The order was formerly divided into three suborders: * The waders (or "Charadrii"): typical shorebirds, most of which feed by probing in the mud or picking items off the surface in both coastal and freshwater environments. * The gulls and their allies (or "Lari"): these are generally larger species which take fish from the sea. Several gulls and skuas will also take food items from beaches, or rob smaller species, and some have become adapted to inland environments. * The auks (or "Alc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circumscription (taxonomy)
In biological taxonomy, circumscription is the content of a taxon, that is, the delimitation of which subordinate taxa are parts of that taxon. If we determine that species X, Y, and Z belong in Genus A, and species T, U, V, and W belong in Genus B, those are our circumscriptions of those two genera. Another systematist might determine that T, U, V, W, X, Y, and Z all belong in genus A. Agreement on circumscriptions is not governed by the Codes of Zoological or Botanical Nomenclature, and must be reached by scientific consensus. A goal of biological taxonomy is to achieve a stable circumscription for every taxon. This goal conflicts, at times, with the goal of achieving a natural classification that reflects the evolutionary history of divergence of groups of organisms. Balancing these two goals is a work in progress, and the circumscriptions of many taxa that had been regarded as stable for decades are in upheaval in the light of rapid developments in molecular phylogene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lice
Louse ( : lice) is the common name for any member of the clade Phthiraptera, which contains nearly 5,000 species of wingless parasitic insects. Phthiraptera has variously been recognized as an order, infraorder, or a parvorder, as a result of developments in phylogenetic research. Lice are obligate parasites, living externally on warm-blooded hosts which include every species of bird and mammal, except for monotremes, pangolins, and bats. Lice are vectors of diseases such as typhus. Chewing lice live among the hairs or feathers of their host and feed on skin and debris, while sucking lice pierce the host's skin and feed on blood and other secretions. They usually spend their whole life on a single host, cementing their eggs, called nits, to hairs or feathers. The eggs hatch into nymphs, which moult three times before becoming fully grown, a process that takes about four weeks. Genetic evidence indicates that lice are a highly modified lineage of Psocoptera (now ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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