Odum School of Ecology, University of Georgia, Athens, GA, USA.
Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, USA.
Trends Ecol Evol. 2024 Jul;39(7):625-633. doi: 10.1016/j.tree.2024.01.005. Epub 2024 Feb 13.
Migratory animals can bring parasites into resident animal (i.e., non-migratory) home ranges (transport effects) and exert trophic effects that either promote or reduce parasite exposure to resident hosts. Here, we examine the importance of these transport and trophic effects and their interactions for resident parasite dynamics. We propose that migrant transport and trophic effects are impacted by the number of migratory animals entering a resident's home range (migration intensity), the amount of time that migrants spend within a resident's home range (migration duration), and the timing of migrant-resident interactions. We then incorporate migration intensity, duration, and timing into a framework for exploring the net impact of migrant trophic and transport effects on resident animal parasite prevalence.
迁徙动物可以将寄生虫带入居留动物（即非迁徙动物）的活动范围（传输效应），并发挥促进或减少寄生虫暴露于居留宿主的营养效应。在这里，我们研究了这些传输和营养效应及其相互作用对居留寄生虫动态的重要性。我们提出，移民的传输和营养效应受到进入居留动物活动范围的移民数量（移民强度）、移民在居留动物活动范围中停留的时间（移民持续时间）以及移民与居留动物相互作用的时间的影响。然后，我们将移民强度、持续时间和时间纳入一个框架，以探索移民营养和传输效应对居留动物寄生虫流行率的净影响。
