全球智库信息集成服务系统(G2TT): Niche emergence as an autocatalytic process in the evolution of ecosystems.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1016/j.jtbi.2018.05.038
	Niche emergence as an autocatalytic process in the evolution of ecosystems.
	Gatti RC; Fath B; Hordijk W; Kauffman S; Ulanowicz R
发表日期	2018
出处	Journal of Theoretical Biology 454: 110-117
出版年	2018
语种	英语
摘要	The utilisation of the ecospace and the change in diversity through time has been suggested to be due to the effect of niche partitioning, as a global long-term pattern in the fossil record. However, niche partitioning, as a way to coexist, could be a limited means to share the environmental resources and condition during evolutionary time. In fact, a physical limit impedes a high partitioning without a high restriction of the niche's variables. Here, we propose that niche emergence, rather than niche partitioning, is what mostly drives ecological diversity. In particular, we view ecosystems in terms of autocatalytic sets: catalytically closed and self-sustaining reaction (or interaction) networks. We provide some examples of such ecological autocatalytic networks, how this can give rise to an expanding process of niche emergence (both in time and space), and how these networks have evolved over time (so-called evoRAFs). Furthermore, we use the autocatalytic set formalism to show that it can be expected to observe a power-law in the size distribution of extinction events in ecosystems. In short, we elaborate on our earlier argument that new species create new niches, and that biodiversity is therefore an autocatalytic process.
主题	Advanced Systems Analysis (ASA)
关键词	Autocatalysis Symbiosis Niche emergence Diversity Autocatalytic set Biodiversity Ecosystem evolution
URL	http://pure.iiasa.ac.at/id/eprint/15305/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/131346
推荐引用方式 GB/T 7714	Gatti RC,Fath B,Hordijk W,et al. Niche emergence as an autocatalytic process in the evolution of ecosystems.. 2018.