No evidence for a dilution effect of the non-native snail, Potamopyrgus antipodarum, on native snails
| Autor: | Edward P. Levri, Kara L. Wise, Snehalata Huzurbazar, Amy C. Krist, Michele D. Larson, Daniel J. Greenwood |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Wyoming Life Cycles Range (biology) Flatworms Snails Population Dynamics Invasive Species Introduced species Snail 01 natural sciences Invasive species Medical Conditions Larvae Medicine and Health Sciences Biomass Larva Multidisciplinary Ecology Eukaryota Biodiversity Medicine Trematoda Potamopyrgus antipodarum Research Article Ecological Metrics Science Parasitic Life Cycles Zoology Trematode Infections Biology 010603 evolutionary biology Trematodes Species Colonization biology.animal Helminths Parasitic Diseases Animals Parasitic life cycles Host (biology) 010604 marine biology & hydrobiology fungi Ecology and Environmental Sciences Organisms Biology and Life Sciences Molluscs biology.organism_classification Invertebrates Gastropods Parasitology Introduced Species Developmental Biology |
| Zdroj: | PLoS ONE PLoS ONE, Vol 15, Iss 10, p e0239762 (2020) |
| ISSN: | 1932-6203 |
| Popis: | The dilution effect can occur by a range of mechanisms and results in reduced parasite prevalence in host taxa. In invaded ecosystems, the dilution effect can benefit native species if non-native species, acting as resistant or less competent hosts, reduce rates of parasitic infections in native species. In field experiments, we assessed whether manipulating biomass of the non-native snail, Potamopyrgus antipodarum, caused a dilution effect by reducing trematode infections in three taxa of native snails. In contrast to many studies showing resistant or less competent non-native hosts can "dilute" or reduce infection rates, we found no evidence for a dilution effect reducing infection rates of any of the native snails. We suggest that a dilution effect may not have occurred because most trematode taxa are highly host specific, and thus the trematode transmission stages did not recognize the invasive snail as a possible host. In this case, community composition appears to be important in influencing the dilution effect. |
| Databáze: | OpenAIRE |
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