Non-host organisms impact transmission at two different life stages in a marine parasite
Non-host organisms impact transmission at two different life stages in a marine parasite
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非宿主生物影响海洋寄生虫两个不同生命阶段的传播
DOI:
10.1007/s00436-018-6121-2
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发表时间:
2019
影响因子:
2
通讯作者:
Selbach
中科院分区:
文献类型:
--
作者:
Vielma;Lagrue;Poulin;Selbach
The potential for local biodiversity to ‘dilute’ infection risk has been shown to be particularly important in aquatic trematodes, where non-host organisms can feed on free-living infective stages (cercariae) and reduce transmission rates to target hosts. Non-host organisms could also impact transmission during other stages of the trematode life cycle. InPhilophthalmusspp., cercariae encyst as metacercariae on external surfaces, where they remain exposed to the adverse effects of non-host organisms. In laboratory experiments, we tested the potential for a range of non-host organisms to (i) prey on cercariae, (ii) induce early (i.e., faster) encystment and (iii) prey on or destroy metacercariae. Our results show that intertidal anemones, and to a lesser extent clams, can consume substantial numbers of cercariae. However, we found no strong evidence that the presence of these predators causes cercariae to encyst faster as a way to escape from predation. We also found that grazing snails can reduce numbers of encysted metacercariae, either by eating or crushing them. Our findings add to the growing evidence that trematode transmission success can be strongly affected by the local diversity of non-host organisms. They also reinforce the notion that parasites are potentially important food items for many organisms, thus playing roles other than consumers in many food webs.
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DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
J. Hopper;R. Poulin;D. Thieltges
通讯作者:
D. Thieltges
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
S. Martorelli;B. Fredensborg;Tommy L. F. Leung;R. Poulin
通讯作者:
R. Poulin
影响因子:
2.7
作者:
K. Mouritsen;R. Poulin
通讯作者:
R. Poulin
影响因子:
2.4
作者:
D. Thieltges;M. Bordalo;A. CABALLERO HERNÁNDEZ;K. Prinz;K. Jensen
通讯作者:
K. Jensen
影响因子:
1.2
作者:
K. Mouritsen;S. Mckechnie;E. Meenken;J. Toynbee;R. Poulin
通讯作者:
R. Poulin