Mixed-species assemblages and disease: the importance of differential vector and parasite attraction in transmission dynamics
Mixed-species assemblages and disease: the importance of differential vector and parasite attraction in transmission dynamics
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DOI：
10.1098/rstb.2022.0109
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发表时间：
2023-04
期刊：
影响因子：
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通讯作者：
P. A. Trillo;X. Bernal;R. Hall
中科院分区：
文献类型：
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作者：
P. A. Trillo;X. Bernal;R. Hall
来自多个物种的个体经常聚集在一起获取资源，为了防御和觅食而聚集在一起，或者是由于人类活动而聚集在一起。虽然有充分的证据表明，寻找寄主的疾病媒介和寄生虫对来自不同寄主的线索的反应存在偏差，但混合物种组合对疾病动态的影响受到的关注有限。本文对宿主特异性载体和寄生虫偏倚的相关研究进行了综述。为了更好地理解媒介和寄生虫的偏见是如何影响感染的，我们提供了一个概念框架，将面向线索的媒介和寄生虫寻找宿主的行为描述为一个两阶段的过程，包括这些敌人被吸引到组合中，以及它们在组合中选择宿主。我们阐述了这一框架，开发了一个混合物种青蛙组合的案例研究，其中咬青蛙的蠓传播锥虫。最后，我们提出了一个数学模型，研究宿主物种组成和矢量吸引的不对称性如何调节混合物种组合中的传播动力学。我们认为，宿主对媒介的不同吸引力可能对混合物种组合中的疾病传播产生重要影响，对野生动物保护和人畜共患疾病具有重要意义。这篇文章是主题问题“混合物种群体和聚集：塑造生态和行为模式和过程”的一部分。
Individuals from multiple species often aggregate at resources, group to facilitate defense and foraging, or are brought together by human activity. While it is well-documented that host-seeking disease vectors and parasites show biases in their responses to cues from different hosts, the influence of mixed-species assemblages on disease dynamics has received limited attention. Here, we synthesize relevant research in host-specific vector and parasite bias. To better understand how vector and parasite biases influence infection, we provide a conceptual framework describing cue-oriented vector and parasite host-seeking behaviour as a two-stage process that encompasses attraction of these enemies to the assemblage and their choice of hosts once at the assemblage. We illustrate this framework, developing a case study of mixed-species frog assemblages, where frog-biting midges transmit trypanosomes. Finally, we present a mathematical model that investigates how host species composition and asymmetries in vector attraction modulate transmission dynamics in mixed-species assemblages. We argue that differential attraction of vectors by hosts can have important consequences for disease transmission within mixed-species assemblages, with implications for wildlife conservation and zoonotic disease. This article is part of the theme issue ‘Mixed-species groups and aggregations: shaping ecological and behavioural patterns and processes’.