Animal and Plant Species in Antagonistic and Mutualistic Networks, a Multispecies Mean Field Model  

作　　者：Gilberto Corso Claudia P. T. Cruz Adriana M. de Almeida 

机构地区：[1]Departamento de Biofisica e Farmacologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazil [2]Escola de Engenharia e Ciências Exatas, Universidade Potiguar, Natal, Brazil [3]Departmento de Ecologia, Centro de Biociências, Universidade Federal do Rio Grande do Norte, Natal, Brazil

出　　处：《Open Journal of Ecology》2017年第3期211-221,共11页生态学期刊（英文）

摘　　要：We construct a dynamic system model of a web of NA?animal species interacting with NP plant species using a system of coupled differential equations. The model has a parameter which represents the effect of animal on plant species that can be positive (mutualistic interaction) or negative (antagonistic interaction). We work a Multispecies Mean Field Model MMFM in which the full set of NA and NP variables are reduced to a couple of an average animal and plant species. We study the conditions for existence of the MMFM and relate the result to the difference between animal and plant species in the network. We compare our results with empirical data from pollinators (mutualistic) and herbivorous insect (antagonistic) networks. We conclude by combining analytical and empirical work that antagonistic networks present fewer animal species in relation to plant species than mutualistic ones.We construct a dynamic system model of a web of NA?animal species interacting with NP plant species using a system of coupled differential equations. The model has a parameter which represents the effect of animal on plant species that can be positive (mutualistic interaction) or negative (antagonistic interaction). We work a Multispecies Mean Field Model MMFM in which the full set of NA and NP variables are reduced to a couple of an average animal and plant species. We study the conditions for existence of the MMFM and relate the result to the difference between animal and plant species in the network. We compare our results with empirical data from pollinators (mutualistic) and herbivorous insect (antagonistic) networks. We conclude by combining analytical and empirical work that antagonistic networks present fewer animal species in relation to plant species than mutualistic ones.

关 键 词：ECOLOGICAL Interactions Stability Complexity Plant-Animals Ratio POLLINATION HERBIVORY 

分 类 号：R73[医药卫生—肿瘤]