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首页> 外文期刊>Estuarine Coastal and Shelf Science >Hitching a ride on a hermit crabs home: Movement of gastropod shells inhabited by hermit crabs
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Hitching a ride on a hermit crabs home: Movement of gastropod shells inhabited by hermit crabs

机译：在寄居蟹之家搭便车：寄居蟹居住的腹足纲贝壳运动

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摘要

There is little information on the movement and connectivity patterns for many species. The movement by shells occupied by the hermit crab Pagurus bernhardus and the organisms encrusting these shells was investigated on the south coast of Wales (UK). Hermit crabs shells moved considerable distances along the shore over 1 month periods, moving a minimum mean distance (±SE) of 148 (±8) and 174 (±9) m from release sites in the January and August respectively. Hermit crab-inhabited shells were also found to travel across habitats (sandy areas) that are unsuitable for both hermit crabs and epibionts. Through the examination of 150 of the most abundant shells used by P. bemhardus (Nucella lapillus), twelve epibiont species were found (10 animal and 2 algal species) and choice experiments demonstrated that hermit crabs preferred epibiont covered shells (84%), compared with bare shells (16%). The distance that shells were moved and the preference of hermit crabs for epibiont encrusted shells, coupled with the ability for epibionts to cross unsuitable habitats, may provide a dispersal advantage for epibiont species.
机译：关于许多物种的运动和连接方式的信息很少。在威尔士（英国）的南海岸，对寄居蟹Pagurus bernhardus所占据的贝壳运动以及包裹这些贝壳的生物进行了研究。寄居蟹壳在1个月的时间内沿海岸移动了相当长的距离，分别于1月和8月从释放地点移动了148（±8）和174（±9）m的最小平均距离（±SE）。寄居蟹居住的贝壳也被发现穿越既不适合寄居蟹又不能居住于寄居生物的栖息地（沙地）。通过检查150种最富裕的壳虫（Nucella lapillus）使用的贝壳，发现了12种表观生物物种（10种动物和2种藻类），选择实验表明，与之相比，寄居蟹更喜欢表皮生物覆盖的壳体（84％）裸壳（16％）。壳的移动距离以及寄居蟹对表生动物包壳的偏爱，再加上表生动物能够越过不合适的生境，可能为表生动物提供了传播优势。

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