LIFE CYCLE AND PARATENESIS OF AMERICAN GORDIIDS (NEMATOMORPHA: GORDIIDA)
To complete their life cycle, gordiids must make a transition from aquatic to terrestrial environments. However, epibenthic aquatic larvae and their terrestrial definitive hosts do not overlap in habitat. This has led many investigators to suggest that infections are acquired through the ingestion of insects, which become infected as aquatic larvae ...
Hanelt, Ben, Janovy, John J., Jr.
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New Records of Hairworms (Nematomorpha: Gordiida) from Japan
1 Zoological Museum and Biocenter Grindel, University of Hamburg, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany E-mail: andreas.schmidt-rhaesa@uni-hamburg.de 2 Toyohashi Museum of Natural History, 1-238 Oana, Oiwa, Toyohashi, 441-3147 Japan E-mail: nishi.hirotaka@gmail.com 3 Division of Ecology and Evolutionary Biology, Graduate School of Life ...
Andreas Schmidt-Rhaesa +3 more
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Going Solo: Discovery of the First Parthenogenetic Gordiid (Nematomorpha: Gordiida)
Despite the severe fitness costs associated with sexual reproduction, its persistence and pervasiveness among multicellular organisms testifies to its intrinsic, short-term advantages. However, the reproductive assurance hypothesis predicts selection favoring asexual reproduction in sparse populations and when mate finding is difficult. Difficulties in
Ben Hanelt +2 more
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Larval survival strategy during winter of Chordodes nobilii Camerano, 1901 (Gordiida, Nematomorpha) [PDF]
AbstractThere are numerous open questions concerning the life cycle of Gordiida (Nematomorpha), especially about egg development and viability of larvae during winter, when the temperature of freshwater environments where they inhabit is low. On the basis of experimental studies we demonstrate that egg development of Chordodes nobilii takes 20–25 days ...
Zanca, Fernanda Mariel +2 more
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A new Gordionus MÜLLER, 1927 from Switzerland (Nematomorpha, Gordiida)
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Andreas Schmidt-Rhaesa +1 more
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Chordodes ferox, a new record of horsehair worms (Nematomorpha, Gordiida) from South Africa [PDF]
Three females and one male specimen of a previously unconfirmed species of horsehair worms (Nematomorpha) from South Africa are described using Scanning Electron Microscopy. The females correspond to the description of Chordodes ferox Camerano, 1897, a species previously described from the Democratic Republic of the Congo (Congo-Kinshasa) and an ...
Schmidt-Rhaesa,Andreas +1 more
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Scanning electron microscopy of Chordodes moutoni Camerano, 1895 (Gordiida, Nematomorpha)
Taxonomic characters of both male and female horse-hair worms Chordodes moutoni Camerano, 1895 (Nematomorpha) are re-described using scanning electron microscopy. The features are compared with the original description. C. moutoni cuticle has five different areolar types in male while female have six types of areoles.
Zanca, Fernanda Mariel +1 more
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Revision of the genus Beatogordius (Gordiida, Nematomorpha) : II. South American species with description of two new species [PDF]
Seven species of Beatogordius (Nematomorpha) have been reported from South America. A reinvestigation could not reproduce a number of determinations indicated in the literature. B. deshayesi has been a misinterpretation and the status of B.
Schmidt Rhaesa, Andreas +2 more
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Sensitivity of preparasitic stages of Chordodes nobilii (Gordiida, Nematomorpha) to malathion
The largest part of the life cycle of Gordiida, known as horsehair worms, occurs in aquatic environments usually affected by agricultural activities. The free-living adults reproduce in freshwater environments, where preparasitic larvae undergo development. Since malathion is an insecticide used in the distribution area of Chordodes nobilii, the aim of
Achiorno, Cecilia Luján +2 more
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A bibliography of works for the identification of freshwater invertebrates in the British Isles [PDF]
This bibliography covers the literature up to the end of 1978. The criteria used in the selection of references were that they should aid identification of invertebrates directly; thus, works solely concerned with the taxonomy of a particular group are ...
Armitage, P.D. +2 more
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