Climate change-related increases in temperature will influence the interactions between organisms, including the infection dynamics of parasites in ecosystems. The distribution and transmission of parasites are expected to increase with warmer temperature, but to what extent this will affect closely related parasite taxa living in sympatry is currently impossible to predict, due to our extremely limited understanding of the interspecific variation in transmission potential among parasite species in changing ecosystems. Here, we analyse the transmission patterns of four trematode species from the New Zealand mudsnail Potamopyrgus antipodarum with different life cycles and transmission strategies under two temperature scenarios, simulating current and future warmer temperatures. In a comparative experimental study, we investigated the effects of temperature on the productivity, movement and survival of the parasites’ transmission stages (cercariae) to quantify the net effect of temperature on their overall transmission potential. Our results show that increases in temperature positively affect cercarial transmission dynamics, yet these impacts varied considerably between the cercariae of different trematode species, depending on their host-searching behaviour. These different species-specific transmission abilities as well as the varying individual patterns of productivity, activity and longevity are likely to have far-reaching implications for disease dynamics in changing ecosystems, since increases in temperature can shift parasite community structure. Due to the parasites’ capacity to regulate the functioning of whole ecological communities and their potential impact as disease agents, understanding these species-specific parasite transmission traits remains a fundamental requirement to predict parasite dynamics under changing environmental conditions.

与气候变化相关的温度升高将影响生物体之间的相互作用，包括生态系统中寄生虫的感染动态。预计随着温度的升高，寄生虫的分布和传播会增加，但是由于我们对寄生虫物种之间传播潜力的种间差异的了解非常有限，目前尚无法预测这会在多大程度上影响生活在共生系统中的紧密相关的寄生虫类群。在不断变化的生态系统中。在这里，我们分析了来自新西兰泥螺Potamopyrgus antipodarum的四种吸虫的传播方式在两种温度情况下模拟不同的生命周期和传输策略，模拟当前和未来的较暖温度。在一项对比实验研究中，我们研究了温度对寄生虫传播阶段（尾c）的生产力，运动和生存的影响，以量化温度对其整体传播潜力的净影响。我们的结果表明，温度升高对尾car的传播动力学有积极影响，但是这些影响在不同吸虫物种的尾c之间有很大差异，具体取决于它们的宿主搜索行为。这些不同的物种特定的传播能力以及生产力，活动和寿命的不同个体模式可能会对不断变化的生态系统中的疾病动态产生深远的影响，因为温度升高会改变寄生虫的群落结构。由于寄生虫具有调节整个生态群落功能的能力及其作为病原体的潜在影响，因此了解这些特定于物种的寄生虫传播特性仍然是预测在变化的环境条件下寄生虫动态的基本要求。