首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Host selection by the cleaner shrimp Ancylomenes pedersoni: Do anemone host species, prior experience or the presence of conspecific shrimp matter?
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Host selection by the cleaner shrimp Ancylomenes pedersoni: Do anemone host species, prior experience or the presence of conspecific shrimp matter?

机译:清洁虾对虾的选择寄主Ancylomenes pedersoni:银莲花的寄主物种,先前的经历或同种虾的存在是否重要?

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In the symbiotic association that exists between cleaner shrimp Ancylomenes pedersoni (=Periclimenes pedersoni) and host sea anemones, specificity varies among populations, and shrimp are believed to search among different individual hosts for favourable positions from which to attract client fish. Four laboratory-based experiments were conducted to test host selection of A pedersoni between the following: i) Bartholomea annulata (corkscrew anemone) and Condylactis gigantea (condy anemone), ii) B. annulata, with or without a conspecific resident, iii) a previously known or unknown B. annulata, and iv) a previously known or unknown C. gigantea. Preference (active selection) was distinguished from mere passive association by comparing shrimp acclimation to anemones offered in choice and no-choice (control) situations. The results were analysed using asymmetrical X~2 contingency tables (in each experiment, n = 60) where expected frequencies were obtained with maximum likelihood estimators. Shrimp acclimated more frequently to B. annulata than to C. gigantea, but they acclimated similarly to anemones with or without another resident and to those B. annulata and C. gigantea anemones that were familiar rather than unfamiliar. However, none of the x~2 values were statistically significant (x~2 df= 1 =0.48,0.19,0.42,0.42; overall p>0.45), suggesting that preference may not be responsible for the association between adult A pedersoni and its host anemones observed in the field. Differences in the frequency of association may be due to factors other than the active decisions made by shrimp when presented with more than one alternative host.
机译:在较清洁的虾Ancylomenes pedersoni(= Periclimenes pedersoni)与寄主海葵之间存在共生关系,种群之间的特异性各不相同,据信虾会在不同的寄主之间寻找有利的位置来吸引客鱼。进行了四个基于实验室的实验,以测试以下人群中A pedersoni的寄主选择:i)环纹凤蝶(开瓶器海葵)和尖齿夜蛾(condy anemone),ii)环孢杆菌,有或没有同种居所,iii)a先前已知或未知的环孢梭菌,和iv)先前已知或未知的环孢梭菌。通过将虾适应与选择和无选择(控制)情况下提供的海葵进行比较,偏好(主动选择)与单纯的被动联想有所区别。使用非对称X〜2列联表(在每个实验中,n = 60)分析了结果,其中使用最大似然估计量获得了预期频率。虾对B. annulata的适应比对C. gigantea的适应更频繁,但是它们对有或没有其他居民的海葵以及熟悉的而不是不熟悉的B. annulata和C. gigantea的海葵的适应类似。然而,x〜2值均无统计学意义(x〜2 df = 1 = 0.48,0.19,0.42,0.42;总体p> 0.45),这表明偏好可能不构成成年A pedersoni与它之间的联系。在现场观察到的寄主海葵。交配频率上的差异可能是由于虾呈现多于一个替代寄主时主动做出的决定以外的因素所致。

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