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Topic: Microphallus piriformes


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In the News (Thu 31 Dec 09)

  
  Microphallus piriformes - Wikipedia, the free encyclopedia
Microphallus piriformes Galaktionov 1983 is a parasitic trematode (fluke) with two hosts: the herring gull and the rough periwinkle.
piriformes, these species do not come into contact; but if the parasite is present, it modifies the behaviour of the mollusc to facilitate its own transfer.
The parasite instigates the behaviour at the most effective time to bring periwinkles and gulls into contact: this would be during the summer, when gulls are gathered at their breeding colonies.
en.wikipedia.org /wiki/Microphallus_piriformes   (300 words)

  
 Microphallus - Wikipedia, the free encyclopedia
Microphallus is a genus of parasitic trematodes (flukes) in the family Microphallidae.
piriformes parasitizes the rough periwinkle (Littorina saxatilis); when these are eaten by herring gulls it infects the bird and lays its eggs in the bird's feces to infect new periwinkles.
On the structure of the copulatory organs in Microphallus nov.gen., Tr.
en.wikipedia.org /wiki/Microphallus   (326 words)

  
 The effect of Trematode parthenitae on the growth of Onoba aculeus, Littorina saxatilis and L. obtusata (Gastropoda: ...
However, in defiance of the classical interpretation of the gigantic growth of infected snails as a side effect of parasitic castration, the presented study failed to demonstrate that Microphallus piriformes causes gigantism in Littorina.
Microphallus piriformes sporocysts were located in the gonad - digestive gland complex of both Littorina species.
In this study relatively higher pathogenicity of Microphallus piriformes for L. obtusata is supported by the fact of lowered host growth in this host-parasite combination.
www.angelfire.com /sc/gorbushin/pap99.html   (3612 words)

  
 Parazitologiya 2003/37/1.Kaliberdina, Granovitch   (Site not responding. Last check: 2007-11-03)
Seven species of trematodes, Podocotyle atomon, Cryptocotyle lingua, Renicola sp., Himasthla sp., Microphallus piriformes, M. pygmaeus, M. pseudopygmaeus, were found.
piriformes tends to be higher at the upper shore level of sheltered sites.
The third factor reflects the affect of trematodes on the shell shape.
www.zin.ru /journals/parazitologiya/a2003-1/abstr2003-1-Kaliberdina.htm   (314 words)

  
 Microphallus - The Red Queen, continued (2): snails and trematodes
EP Levri and LM Fisher, The Effect of a Trematode Parasite (Microphallus On the structure of the copulatory organs in Microphallus nov.gen., Tr.
eMedicine: Microphallus Indications, causes, and treatments, recommending that gender assignment surgery be considered only in extreme situations.
Microphallus piriformes Microphallus piriformes Galaktionov 1983 is a parasitic trematode (fluke) with two hosts: the herring gull and the rough.
www.webpj.com /?q=microphallus   (175 words)

  
 Department of Invertebrate Zoology. St.Petersburg State University. A.I.Granovitch   (Site not responding. Last check: 2007-11-03)
Granovitch A.I., Sergievsky S.O., Sokolova I.M. Spatial and temporal variation of trematode infection in coexisting populations of intertidal gastropods Littorina saxatilis and L.obtusata in the White Sea// Deseases of Aquatic Organisms.
Khalturin K.V., Mikhailova N.A., Granovitch A.I. The genetic heterogeneity of the populations of Microphallus piriformes and M.pygmaeus (Trematoda: Microphallidae)//Parasitologiya.
Granovitch A. I., Johannesson K. Digenetic Trematodes in four species of Littorina from the West coast of Sweden.
www.bio.pu.ru /zbp/Staff/gran_en.htm   (607 words)

  
 microphobia Stop Anxiety and Fear   (Site not responding. Last check: 2007-11-03)
micronystagmus, organism, micro-organism, microorganism, microphage, microphallus, microphobia, microphthalmia, microplasia...
Sleep or being hypnotized - Hypnophobia Slime - Blennophobia or Myxophobia Small things - Microphobia, Mycrophobia or Tapinophobia Smells or odors - Olfactophobia Smothered, being or choking...
micronystagmus, organism, micro-organism, microorganism, microphage, microphallus, microphobia, microphthalmia, microplasia, micropodia, micropsia, microsaccades, microscopic, microscopy...
www.stop-fear.com /Microphobia   (801 words)

  
 iterations: Metaphors   (Site not responding. Last check: 2007-11-03)
Other times, however, organizational stubbornness or blindness will precipitate the fall, and in such cases there lies opportunity for a turnaround, leading the enterprise back to the entrepreneurial button and new life." B.S.C. from "Looping and Leaping"
"The parasitic fluke Microphallus piriformes has a problem.
To complete its life cycle it needs to travel between two hosts: the rough periwinkle, a seashore mollusc) and the herring gull.
www.iterations.com /protected/projects/metaphors.html   (4741 words)

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