Parasite-mediated allochthonous input: Do hairworms enhance subsidized predation of stream salmonids on crickets?
Parasite-mediated allochthonous input: Do hairworms enhance subsidized predation of stream salmonids on crickets?
复制标题
寄生虫介导的异地输入：毛虫是否会增强溪流鲑鱼对蟋蟀的补贴捕食？
DOI：
10.1139/z07-135
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发表时间：
2008
影响因子：
1.4
通讯作者：
Y. Harada
中科院分区：
文献类型：
--
作者：
Tsukini Sato;Masahiro Arizono;R.SoneR. Sone;Y. Harada
能量和营养物质在异质景观中以不同的途径流动，并将当地栖息地中离散的食物网紧密联系在一起。然而，寄生，提高异地资源输入以前没有记录。在一个众所周知的寄生虫操纵宿主行为的例子中，当蠕虫达到自由生活阶段时，被成熟的毛毛虫（Nematomorpha）感染的蟋蟀会寻找并跳入水中。我们发现，大量的鳟鱼（22%-61%），一种水生捕食者，捕食骆驼蟋蟀（属Diestramena Brunner冯Wattenwyl，1888年和Tachycines Adelung，1902年）在9月在日本的5个山溪，这种主机寄生虫系统存在。鳟鱼（Kirikuchi charr，Salvelinus leucomaenis（Oshima，1961）;红斑马苏鲑鱼，Oncorhynchus masou ishikawae Jordan和McGregor，1925）捕食蟋蟀，经常摄入毛毛虫，而鳟鱼不捕食蟋蟀不摄入毛毛虫。我们的研究结果强烈表明，毛毛虫增强ST…
Energy and nutrients flow in diverse pathways across heterogeneous landscapes and tightly link the discrete food webs in local habitats. However, parasitism that enhances allochthonous resource input has not been previously documented. In a well-known example of parasite manipulation of host behaviour, crickets infected by mature hairworms (Nematomorpha) seek and jump into water when the worms reach the free-living stage. We found that a large number of trout (22%–61%), an aquatic predator, preyed on camel crickets (genera Diestrammena Brunner von Wattenwyl, 1888 and Tachycines Adelung, 1902) in September in five Japanese mountain streams where this host–parasite system exists. Trout (Kirikuchi charr, Salvelinus leucomaenis japonicus (Oshima, 1961); red-spotted masu salmon, Oncorhynchus masou ishikawae Jordan and McGregor, 1925) that preyed on crickets frequently ingested hairworms, whereas trout that did not prey on crickets did not ingest hairworms. Our results strongly suggest that hairworms enhance st...