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Consumer-resource model — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Consumer-resource_model
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-06T17:01:16.318Z
SHA-256 of the archived text: 42af62bf2c1552cdf22f4ecbeea124257b8cb90f87f3ceeb8b9571a3762d269f
Stable URL of this page: https://metraipolis.com/documento/dc_25efea1da751

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Consumer-resource model — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Consumer-resource_model (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_25efea1da751 (Metraipolis archive dc_25efea1da751, sha256 42af62bf2c1552cdf22f4ecbeea124257b8cb90f87f3ceeb8b9571a3762d269f)

BibTeX

@misc{dc25efea1da751,
  title = {Consumer-resource model — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Consumer-resource_model},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_25efea1da751; sha256 42af62bf2c1552cdf22f4ecbeea124257b8cb90f87f3ceeb8b9571a3762d269f},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Consumer-resource_model. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

In theoretical ecology and nonlinear dynamics, consumer-resource models (CRMs) are a class of ecological models in which a community of consumer species compete for a common pool of resources. Instead of species interacting directly, all species-species interactions are mediated through resource dynamics. Consumer-resource models have served as fundamental tools in the quantitative development of theories of niche construction, coexistence, and biological diversity. These models can be interpreted as a quantitative description of a single trophic level. A general consumer-resource model consists of M resources whose abundances are R 1 , … , R M {\displaystyle R_{1},\dots ,R_{M}} and S consumer species whose populations are N 1 , … , N S {\displaystyle N_{1},\dots ,N_{S}} . A general consumer-resource model is described by the system of coupled ordinary differential equations, d N i d t = N i g i ( R 1 , … , R M ) , i = 1 , … , S , d R α d t = f α ( R 1 , … , R M , N 1 , … , N S ) , α = 1 , … , M {\displaystyle {\begin{aligned}{\frac {\mathrm {d} N_{i}}{\mathrm {d} t}}&=N_{i}g_{i}(R_{1},\dots ,R_{M}),&&\qquad i=1,\dots ,S,\\{\frac {\mathrm {d} R_{\alpha }}{\mathrm {d} t}}&=f_{\alpha }(R_{1},\dots ,R_{M},N_{1},\dots ,N_{S}),&&\qquad \alpha =1,\dots ,M\end{aligned}}} where g i {\displaystyle g_{i}} , depending only on resource abundances, is the per-capita growth rate of species i {\displaystyle i} , and f α {\displaystyle f_{\alpha }} is the growth rate of resource α {\displaystyle \alpha } . An essential feature of CRMs is that species growth rates and populations are mediated through resources and there are no explicit species-species interactions. Through resource interactions, there are emergent inter-species interactions. Originally introduced by Robert H. MacArthur and Richard Levins, consumer-resource models have found success in formalizing ecological principles and modeling experiments involving microbial ecosystems.

Tema degli esploratori: scienze della vita e salute (deposito sistematico; categoria «Ecology»).
Fonte: Wikipedia in inglese, voce «Consumer-resource model» — https://en.wikipedia.org/wiki/Consumer-resource_model
Wikidata Q125101377 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q125101377
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Consumer-resource_model?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1378675359, consultata il 2026-10-06T15:26:08.078Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 1f255562800a968e72967b5695b20e40ed65046c029f240552482cb3e3c0eeb5