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来源类型Article
规范类型其他
DOI10.1016/j.jtbi.2015.05.023
Four types of interference competition and their impacts on the ecology and evolution of size-structured populations and communities.
Zhang L; Andersen KH; Dieckmann U; Brannstrom Å
发表日期2015
出处Journal of Theoretical Biology 380: 280-290
出版年2015
语种英语
摘要We investigate how four types of interference competition - which alternatively affect foraging, metabolism, survival, and reproduction - impact the ecology and evolution of size-structured populations. Even though all four types of interference competition reduce population biomass, interference competition at intermediate intensity sometimes significantly increases the abundance of adult individuals and the population's reproduction rate. We find that foraging and metabolic interference evolutionarily favor smaller maturation size when interference is weak and larger maturation size when interference is strong. The evolutionary response to survival interference and reproductive interference is always larger maturation size. We also investigate how the four types of interference competition impact the evolutionary dynamics and resultant diversity and trophic structure of size-structured communities. Like other types of trait-mediated competition, all four types of interference competition can induce disruptive selection and thus promote initial diversification. Even though foraging interference and reproductive interference are more potent in promoting initial diversification, they catalyze the formation of diverse communities with complex trophic structure only at high levels of interference intensity. By contrast, survival interference does so already at intermediate levels, while reproductive interference can only support relatively smaller communities with simpler trophic structure. Taken together, our results show how the type and intensity of interference competition jointly affect coexistence patterns in structured population models.
主题Evolution and Ecology (EEP)
关键词adaptive dynamics biodiversity evolutionary branching food webs size structured populations
URLhttp://pure.iiasa.ac.at/id/eprint/11435/
来源智库International Institute for Applied Systems Analysis (Austria)
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条目标识符http://119.78.100.153/handle/2XGU8XDN/130213
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GB/T 7714
Zhang L,Andersen KH,Dieckmann U,et al. Four types of interference competition and their impacts on the ecology and evolution of size-structured populations and communities.. 2015.
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