Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.2020424118 |
Growth, death, and resource competition in sessile organisms | |
Edward D. Lee; Christopher P. Kempes; Geoffrey B. West | |
2021-04-13 | |
发表期刊 | Proceedings of the National Academy of Sciences |
出版年 | 2021 |
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. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/322017 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Edward D. Lee,Christopher P. Kempes,Geoffrey B. West. Growth, death, and resource competition in sessile organisms[J]. Proceedings of the National Academy of Sciences,2021. |
APA | Edward D. Lee,Christopher P. Kempes,&Geoffrey B. West.(2021).Growth, death, and resource competition in sessile organisms.Proceedings of the National Academy of Sciences. |
MLA | Edward D. Lee,et al."Growth, death, and resource competition in sessile organisms".Proceedings of the National Academy of Sciences (2021). |
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