Please Scroll down for Article Stochastic Models Stochastic Spatial Models of Host-pathogen and Host-mutualist Interactions Ii Stochastic Spatial Models of Host-pathogen and Host-mutualist Interactions Ii
Please Scroll down for Article Stochastic Models Stochastic Spatial Models of Host-pathogen and Host-mutualist Interactions Ii Stochastic Spatial Models of Host-pathogen and Host-mutualist Interactions Ii
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请向下滚动查看文章 随机模型 宿主-病原体和宿主-互利相互作用的随机空间模型 Ii 宿主-病原体和宿主-互利相互作用的随机空间模型 Ii
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通讯作者：
C. Neuhauser
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作者：
N. Lanchier;C Neuhauser;C. Neuhauser
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This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, redistribution , reselling , loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material. Plant community structure is shaped by interactions among plants and their pathogens and mutualists (collectively called symbionts). Some symbionts are highly specialized, others are generalists, adding to the complexity of interactions. The development of a conceptual framework that is based on idealized models is a necessary step in reaching a level of understanding that would allow us to predict outcomes of these interactions. In this paper, we introduce spatially explicit, stochastic models of multispecies host-symbionts interactions with a specific focus on how the degree of specialization affects coexistence of multiple hosts and their symbionts, and, in case of coexistence, what spatial patterns result. Our rigorous results, supplemented by simulations, give a complete description of the behavior of these host-symbionts models. It is proved analytically that generalist symbionts have only a limited effect on the structure of host communities which, in contrast, can be significantly altered by specialist mutualists, with the most beneficial mutualist together with its most preferred hosts outcompeting all the other species. Numerical simulations further suggest that, in the neutral case, specialist pathogens promote the local diversity whereas specialist mutualists lead to a coarse-grained habitat. This paper also contains conjectures for future research directions.