Effects of intraspecific cooperative interactions in large ecosystems

Altieri, Ada; Biroli, Giulio

doi:10.21468/SciPostPhys.12.1.013

SciPost Physics

Effects of intraspecific cooperative interactions in large ecosystems

Ada Altieri, Giulio Biroli

SciPost Phys. 12, 013 (2022) · published 11 January 2022

doi: 10.21468/SciPostPhys.12.1.013
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Abstract

We analyze the role of the Allee effect, a positive correlation between population density and mean individual fitness, for ecological communities formed by a large number of species. Our study is performed using the generalized Lotka-Volterra model with random interactions between species. We obtain the phase diagram and analyze the nature of the multiple equilibria phase. Remarkable differences emerge with respect to the logistic growth case, thus revealing the major role played by the functional response in determining aggregate behaviours of ecosystems.

TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.12.1.013
TI  - Effects of intraspecific cooperative interactions in large ecosystems
PY  - 2022/01/11
UR  - https://scipost.org/SciPostPhys.12.1.013
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 12
IS  - 1
SP  - 013
A1  - Altieri, Ada
AU  - Biroli, Giulio
AB  - We analyze the role of the Allee effect, a positive correlation between population density and mean individual fitness, for ecological communities formed by a large number of species. Our study is performed using the generalized Lotka-Volterra model with random interactions between species. We obtain the phase diagram and analyze the nature of the multiple equilibria phase. Remarkable differences emerge with respect to the logistic growth case, thus revealing the major role played by the functional response in determining aggregate behaviours of ecosystems.
ER  -

@Article{10.21468/SciPostPhys.12.1.013,
	title={{Effects of intraspecific cooperative interactions in large ecosystems}},
	author={Ada Altieri and Giulio Biroli},
	journal={SciPost Phys.},
	volume={12},
	pages={013},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.12.1.013},
	url={https://scipost.org/10.21468/SciPostPhys.12.1.013},
}

Cited by 7

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¹ ² Ada Altieri,
¹ Giulio Biroli

Funder for the research work leading to this publication

Simons Foundation