Field and laboratory quantification of alternative use of host burrows by the varunid crab Sestrostoma toriumii (Takeda, 1974) (Brachyura: Varunidae)
Field and laboratory quantification of alternative use of host burrows by the varunid crab Sestrostoma toriumii (Takeda, 1974) (Brachyura: Varunidae)
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巨蟹 Sestrostoma toriumii 对寄主洞穴的替代利用的现场和实验室量化（Takeda，1974）（Brachyura：Varunidae）
DOI：
10.1093/jcbiol/rux018
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发表时间：
2017
影响因子：
1.1
通讯作者：
G.
中科院分区：
文献类型：
--
作者：
Henmi;Y.;Okada;Y. and Itani;G.
Sestrostoma toriumii（Varunidae）是一种共生的短尾类螃蟹，它利用日本、韩国和香港沿海沿着滩涂的泥虾Upogebia yokoyai（Upogebiidae）的洞穴。我们研究了S. torium ii通过量化替代宿主的使用，即，美虾Nihonotrypaea japonica和短尾蟹Macrophthalmus banzai Wada & K.在U. yokoyaiandN. japonica，但在M.万岁室内实验表明，S. torium入侵了N. japonicain几乎相同的方式，如先前所述的使用U。yokoyaiburrows;然而，S.托罗米挖了M的洞穴。banzailess频率比N. Sestrostoma toriumii通过逃避和传递行为避免宿主物种的敌对反应，以避免甲壳类宿主在由乙烯基管建造的人工洞穴中遇到甲壳类动物时的竞争行为。这些回避行为在含U的试管中更常见。横谷和N.日本。我们的研究结果支持早期的实地研究表明，大多数洞穴的upogebiid虾也使用callianassid虾作为主机。利用M.然而，斑仔潜穴龟能够在洞穴中停留相对较长的时间。这种行为的可塑性可能促进了S的宿主转换。托里乌米。
Sestrostoma toriumii(Varunidae) is a symbiotic brachyuran crab that uses the burrows of the mud shrimpUpogebia yokoyai(Upogebiidae) in tidal flats along the coasts of Japan, Korea, and Hong Kong. We studied the host specificity ofS. toriumiiby quantifying the use of alternative hosts, namely, the callianassid shrimpNihonotrypaea japonicaand the brachyuran crabMacrophthalmus banzaiWada & K. Sakai, 1989 (Macrophthalmidae).Sestrostoma toriumiiwas present at higher densities in tidal flats dominated byU. yokoyaiandN. japonica, but was never found in tidal flats dominated byM. banzai. Laboratory experiments showed thatS. toriumiiused the burrows ofN. japonicain almost the same way as described previously for their use ofU. yokoyaiburrows; however,S. toriumiiused the burrows ofM. banzailess frequently than those ofN. japonica.Sestrostoma toriumiiavoided hostile responses of the host species through escape and pass-under behavior to avoid agonistic behavior by the crustacean host when it encountered the crustaceans in artificial burrows built from vinyl tubes. These avoidance behaviors were observed more often in tubes containingU. yokoyaiandN. japonica. Our results support earlier field studies that showed most burrow associates of upogebiid shrimps also use callianassid shrimps as hosts. Crabs that utilizedM. banzaiburrows were nevertheless able to remain in the burrow for a relatively long period. This behavioral plasticity might facilitate host switching byS. toriumii.