Vector-borne parasite invasion in communities across space and time
Vector-borne parasite invasion in communities across space and time
复制标题
媒介传播的寄生虫跨越空间和时间入侵社区
DOI：
10.1098/rspb.2019.2614
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Park, Andrew W.
中科院分区：
文献类型：
--
作者：
Vinson, John E.;Park, Andrew W.
虽然媒介传播的寄生虫通常通过通食媒介在宿主群落中进行跨物种传播，但描述这些系统中宿主物种多样性与寄生虫入侵之间关系的理论尚不发达。寄主群落的组成和丰度随时间和空间的变化而变化，为寄主的入侵创造了机会。为了探索寄主群落的变化如何改变寄生虫的入侵潜力，我们建立了一个包括任意丰富度和物种丰度的寄主群落的媒介传播动态模型。为了比较不同群落的入侵潜力，我们计算了寄生虫的群落基本繁殖比。我们将由一组寄主物种组成的群落与其子集进行了比较，这允许灵活的情景构建，包括引入新寄主物种和物种损失。我们允许病媒丰度随群落规模而扩大或独立于群落规模，通过摄食机会和有限的产卵地点等非宿主效应来捕捉调节。由于寄主物种能力与丰度之间的数据模棱两可，我们通过寄主物种丰度与能力之间的现象学关系来描述可信的寄主群落。我们发现了一种未被充分认识的机制，即群落的变化同时改变了平均能力和媒介与宿主的比率，并证明了相互作用可以深刻地影响入侵潜力。
While vector-borne parasite transmission often operates via generalist-feeding vectors facilitating cross-species transmission in host communities, theory describing the relationship between host species diversity and parasite invasion in these systems is underdeveloped. Host community composition and abundance vary across space and time, generating opportunities for parasite invasion. To explore how host community variation can modify parasite invasion potential, we develop a model for vector-borne parasite transmission dynamics that includes a host community of arbitrary richness and species' abundance. To compare invasion potential across communities, we calculate the community basic reproductive ratio of the parasite. We compare communities comprising a set of host species to their subsets, which allows for flexible scenario building including the introduction of novel host species and species loss. We allow vector abundance to scale with, or be independent of, community size, capturing regulation by feeding opportunities and non-host effects such as limited oviposition sites. Motivated by equivocal data relating host species competency to abundance, we characterize plausible host communities via phenomenological relationships between host species abundance and competency. We identify an underappreciated mechanism whereby changes to communities simultaneously alter average competency and the vector to host ratio and demonstrate that the interaction can profoundly influence invasion potential.
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DOI：
10.1098/rstb.2016.0116
发表时间：
2017-06-05
期刊：
Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子：
--
作者：
Young HS;McCauley DJ;Dirzo R;Nunn CL;Campana MG;Agwanda B;Otarola-Castillo ER;Castillo ER;Pringle RM;Veblen KE;Salkeld DJ;Stewardson K;Fleischer R;Lambin EF;Palmer TM;Helgen KM
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影响因子：
4.8
作者：
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通讯作者：
C. Veltman
影响因子：
2.9
作者：
O'Regan, Suzanne M.;Vinson, John E.;Park, Andrew W.
通讯作者：
Park, Andrew W.
影响因子：
3.7
作者：
Jessop TS;Smissen P;Scheelings F;Dempster T
通讯作者：
Dempster T
影响因子：
1.9
作者：
Clout, Mick N.;Russell, James C.
通讯作者：
Russell, James C.