Data for the Gopko et al. paper ''<b>Does phylogenetic relatedness impl</b><b>y </b><b>similar manipulative ability in parasites?</b>"

Many parasites can alter the behavior of their hosts in a manner that is beneficial for the parasite (parasitic manipulations). Obviously, examples of non-manipulative parasites also exist, however, their number might be underestimated because of the publication bias. Trematodes from the Diplostomidae family infecting fish eyes are often considered manipulators. However, only one species (<i>Diplostomum pseudospathaceum</i>) of this family has been shown to do so under controlled laboratory conditions. We experimentally studied whether another common diplostomid species (<i>Tylodelphys clavata</i>) manipulated the host defensive behavior using salmonids (<i>Salvelinus malma</i>) reared and infected in the laboratory. We tested fish activity, depth preference, and dip net avoidance (common fish defensive traits) under different light conditions. Although the experimental design was identical to those used earlier for <i>D. pseudospathaceum</i>, no manipulative abilities were detected in<i>T. clavata</i>. Infected fish did not differ from control in the expression of the defensive behavioral traits tested. Interestingly, fish activity was confounded with fish size in control but not in infected fish, however, this pattern does not seem to be a manipulation. Our results show that even closely related parasites occupying similar habitat niches can dramatically differ in their ability to manipulate host behavior.

诸多寄生虫可通过特定方式改变宿主行为，从而使自身获益，这类行为被称为寄生操控（parasitic manipulations）。显然，非操控型寄生虫的案例同样存在，不过由于发表偏倚（publication bias）的影响，其实际数量可能被低估。寄生于鱼类眼部的双穴科（Diplostomidae）吸虫通常被认为属于操控型寄生虫。然而该科中仅有<i>Diplostomum pseudospathaceum</i>一个物种，在受控实验室条件下被证实具备此类操控宿主行为的能力。本研究通过实验，以实验室繁育并感染的鲑科鱼类<i>Salvelinus malma</i>为宿主，探究另一种常见的双穴科物种<i>Tylodelphys clavata</i>是否具备操控宿主防御行为的能力。我们在不同光照条件下，测试了鱼类的活动能力、水深偏好以及捞网躲避行为——这些均为鱼类常见的防御行为特征。尽管本实验设计与此前针对<i>D. pseudospathaceum</i>的实验设计完全一致，但并未在<i>T. clavata</i>中检测到任何操控宿主行为的能力。受感染的鱼类在本次测试的防御行为特征表达方面，与对照组鱼类并无显著差异。值得注意的是，对照组鱼类的活动能力与体型大小存在混杂效应，但受感染鱼类并未出现该现象，不过这一模式似乎并非由寄生操控所致。本研究结果表明，即便亲缘关系相近且栖息于相似生境生态位的寄生虫，其操控宿主行为的能力也可能存在显著差异。

搜集汇总

背景与挑战

背景概述

该数据集支持Gopko等人的研究论文，旨在探讨寄生虫系统发育亲缘关系是否意味着相似的操控能力。数据集包含实验数据，研究了一种常见吸虫物种（Tylodelphys clavata）在实验室条件下对宿主（红点鲑）防御行为的影响，结果未发现操控证据，表明即使亲缘关系相近的寄生虫也可能在行为操控能力上存在显著差异。