Suppression of egg production in<i>Potamopyrgus antipodarum</i>(Gastropoda: Hydrobiidae) by larval trematodes

McArthur, Carole; Featherston, D. W.

doi:10.1080/03014223.1976.9517898

Cited by 19 publications

(18 citation statements)

References 13 publications

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“…The sporocysts of trematode found in Charzykowskie Lake were oval in shape and were similar to those presented in scanning electron photographs by Gerard and Le Lannic (2003). The low prevalence of this parasite in the P. antipodarum population in Poland may support the opinion of the aforementioned authors that the association between this parasite and P. antipodarum is very recent, but we cannot exclude the New Zealand origin of this connection, taking into account the data presented by McArthur and Featherston (1976), who observed some lophocercous larvae in native P. antipodarum populations. This suggestion was underlined by Morley (2008), who considered Sanguinicolidae larvae found in the Mont Saint Michel Bay by Gerard and Le Lannic (2003) to be of the eel blood fluke P. yamagutii, which could have been imported to Europe from New Zealand in the 1970s inside host fish.…”

Section: Discussionsupporting

confidence: 74%

Invaders of an invader – Trematodes in Potamopyrgus antipodarum in Poland

Żbikowski¹,

Żbikowska²

2009

Journal of Invertebrate Pathology

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Section: Discussionsupporting

confidence: 74%

Invaders of an invader – Trematodes in Potamopyrgus antipodarum in Poland

Żbikowski¹,

Żbikowska²

2009

Journal of Invertebrate Pathology

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“…To overcome the costs ofsex, these biological antagonists must have strong negative effects on host fitness (May and Anderson, 1983), and there must be heritable variation in both host resistance and parasite infectivity. The larval trematodes of P. antipodarum typically sterilize infected individuals (Winterbourn, 1973;MacArthur and Featherston, 1976), and, for the most common trematode, Microphallus, there appears to be a genetic basis to the host-parasite interaction (Lively, 1989). Hence, the minimum conditions for the interaction to favor cross-fertilization in the snail host seem to be met.…”

Section: Resultsmentioning

confidence: 99%

“…Most of these (N = 63) were from South Island locations, a majority of which (N = 60) were formed by glacial activity during the end of the Pleistocene (review in Gage, 1975). Subsamples ofthese snails (40-300 adults) were dissected, sexed, and assayed for trematode larvae [Po antipodarum is the first intermediate host for about 14 species of castrating digenetic trematodes (Winterboum, 1973;MacArthur and Featherston, 1976)]. Snail density was estimated in 33 of these lakes by shaking the snails from haphazardly chosen rocks into a net, and dividing the number of snails collected by the time spent collecting (5-30 min).…”

Section: Methodsmentioning

confidence: 99%

Parthenogenesis in a Freshwater Snail: Reproductive Assurance Versus Parasitic Release

Lively

1992

Evolution

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Abstract. -Two alternative (but not mutually exclusive) hypotheses were contrasted for their abilities to explain the distribution of parthenogenesis in the freshwater snail Potamopyrgus antipodarum: the reproductive assurance hypothesis, which predicts that parthenogenesis will be favored in sparse populations where mates are difficult to find, and the Red Queen hypothesis, which predicts that parthenogenesis will be favored in populations that have a low risk of parasitism. The results were inconsistent with the prediction of the reproductive assurance hypothesis; male frequency was not significantly or positively correlated with snail density. Thus, there was no support for any of the hypotheses for the maintenance of sex that rely on selection for reproductive assurance to explain the distribution of parthenogenesis (e.g., recombinational repair). The results, however, were consistent with the Red Queen hypothesis; male frequency was positively and significantly correlated with the frequency of individuals infected by trematodes. This correlation suggests that parthenogenetic females have replaced sexual females in populations where parasites are rare, and that sexual females have persisted in populations where parasites are common.

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“…Diploid specimens reproduce through outcrossing, and triploid snails are all female and parthenogenetic (Philipps & Lambert 1990;Wallace 1992;Dybdahl & Lively 1995). P. antipodarum is intermediate host of 14 species of digenean trematodes (Winterbourn 1974;MacArthur & Featherston 1976).…”

Section: Introductionmentioning

confidence: 99%

Clinal variation in shell morphology of the freshwater gastropodPotamopyrgus antipodarumalong two hill‐country streams in New Zealand

Haase¹

2003

Journal of the Royal Society of New Zealand

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The extremely polymorphic gastropod Potamopyrgus antipodarum is widespread in freshwater habitats throughout New Zealand. This study describes morphological variation of P. antipodarum along two streams in Waikato (North Island, New Zealand), and explores relationships between morphology and selected environmental variables (temperature, conductivity, pH, flow, shade, vegetation). Along each stream, fully grown snails were collected at 11 sites extending from the source of flow to 1 or 1.5 km downstream. In both streams, shells increased in size and in one stream they also became more obese with distance from the source. Of the environmental variables assessed only flow, which increased downstream, was found to have potential influence on shell morphology. Larger snails have a larger foot and thus a larger attachment area and therefore may be able to withstand higher currents, despite having a higher Reynolds number resulting in increased drag on them relative to smaller individuals. Other studies have found that clines of morphological variation in lakes are apparently driven by the differential risk of infection by parasites. This can be excluded for the stream populations in this study, because parasitised individuals were absent at upstream sites, suggesting that similar morphological patterns may have entirely different causes.

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Suppression of egg production inPotamopyrgus antipodarum(Gastropoda: Hydrobiidae) by larval trematodes

Cited by 19 publications

References 13 publications

Invaders of an invader – Trematodes in Potamopyrgus antipodarum in Poland

Invaders of an invader – Trematodes in Potamopyrgus antipodarum in Poland

Parthenogenesis in a Freshwater Snail: Reproductive Assurance Versus Parasitic Release

Clinal variation in shell morphology of the freshwater gastropodPotamopyrgus antipodarumalong two hill‐country streams in New Zealand

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