气候变化领域集成服务门户(CCPortal): Growth, death, and resource competition in sessile organisms

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DOI	10.1073/pnas.2020424118
	Growth, death, and resource competition in sessile organisms
	Lee E.D.; Kempes C.P.; West G.B.
发表日期	2021
ISSN	00278424
卷号	118 期号:15
英文摘要	Population-level scaling in ecological systems arises from individual growth and death with competitive constraints. We build on a minimal dynamical model of metabolic growth where the tension between individual growth and mortality determines population size distribution. We then separately include resource competition based on shared capture area. By varying rates of growth, death, and competitive attrition, we connect regular and random spatial patterns across sessile organisms from forests to ants, termites, and fairy circles. Then, we consider transient temporal dynamics in the context of asymmetric competition, such as canopy shading or large colony dominance, whose effects primarily weaken the smaller of two competitors. When such competition couples slow timescales of growth to fast competitive death, it generates population shocks and demographic oscillations similar to those observed in forest data. Our minimal quantitative theory unifies spatiotemporal patterns across sessile organisms through local competition mediated by the laws of metabolic growth, which in turn, are the result of long-term evolutionary dynamics. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Ecology; Metabolic scaling; Population dynamics; Sessile; Spatial patterning
语种	英语
scopus关键词	article; canopy; competition; demography; ecology; growth rate; human; Isoptera; mortality; nonhuman; oscillation; population dynamics; population size; sessile species; tension; theoretical study
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179919
作者单位	Santa Fe Institute, Santa Fe, NM 87501, United States
推荐引用方式 GB/T 7714	Lee E.D.,Kempes C.P.,West G.B.. Growth, death, and resource competition in sessile organisms[J],2021,118(15).
APA	Lee E.D.,Kempes C.P.,&West G.B..(2021).Growth, death, and resource competition in sessile organisms.Proceedings of the National Academy of Sciences of the United States of America,118(15).
MLA	Lee E.D.,et al."Growth, death, and resource competition in sessile organisms".Proceedings of the National Academy of Sciences of the United States of America 118.15(2021).