Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/8870
Title: Effects of interspecific competition on asexual proliferation and clonal genetic diversity in larval trematode infections of snails
Contributor(s): Keeney, Devon B (author); Boessenkool, Sanne (author); King, Tania M (author); Leung, Tommy  (author); Poulin, Robert (author)
Publication Date: 2008
DOI: 10.1017/S0031182008004435
Handle Link: https://hdl.handle.net/1959.11/8870
Abstract: Interactions among different parasite species within hosts can be important factors shaping the evolution of parasite and host populations. Within snail hosts, antagonistic interactions among trematode species, such as competition and predation, can influence parasite abundance and diversity. In the present study we examined the strength of antagonistic interactions between 2 marine trematodes ('Maritrema novaezealandensis' and 'Philophthalmus' sp.) in naturally infected 'Zeacumantus subcarinatus' snails. We found approximately the same number of snails harbouring both species as would be expected by chance given the prevalence of each. However, snails infected with only 'M. novaezealandensis' and snails with 'M. novaezealandensis' and 'Philophthalmus' sp. co-occurring were smaller than snails harbouring only 'Philophthalmus' sp. In addition, the number of 'Philophthalmus' sp. rediae was not affected by the presence of 'M. novaezealandensis' sporocysts and the within-host clonal diversity of 'M. novaezealandensis' was not influenced by the presence of 'Philophthalmus' sp. Our results suggest that antagonistic interactions may not be a major force influencing the evolution of these trematodes and that characteristics such as host size and parasite infection longevity are shaping their abundance and population dynamics.
Publication Type: Journal Article
Source of Publication: Parasitology, 135(6), p. 741-747
Publisher: Cambridge University Press
Place of Publication: United Kingdom
ISSN: 0031-1820
1469-8161
Field of Research (FOR): 060411 Population, Ecological and Evolutionary Genetics
060899 Zoology not elsewhere classified
060808 Invertebrate Biology
Socio-Economic Outcome Codes: 970106 Expanding Knowledge in the Biological Sciences
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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Appears in Collections:Journal Article
School of Environmental and Rural Science

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