KEY RESOURCES TABLE

REAGENT OR RESOURCE	SOURCE	IDENTIFIER
Chemicals, peptides, and recombinant proteins
D-glucose	VWR	Cat. #0188
Acetate	Sigma	Cat. #S8625
D-lactate	Sigma	Cat. #71716
succinate	Alfa Aesar	Cat. #419A3
Critical commercial assays
glucose GO assay kit	Millipore	Cat. #GAGO20
Acetate assay kit	Abcam	Cat. #ab204719
D-Lactate assay kit	Abcam	Cat. #ab83429
Succinate assay kit	Abcam	Cat. #ab204718
DNeasy 96 Blood & Tissue kit	QIAGEN	Cat. #69582
Quan-iTPicoGreen dsDNA Assay kit	Invitrogen	Cat. #P11496
SequalPrep PCR cleanup and normalization kit	Invitrogen	Cat. #A1051001
Deposited data
16S rRNA sequencing abundance data	This study	https://doi.org/10.5061/dryad.5x69p8d3z
Genome scale metabolic models	This study	SRA: PRJNA749600
Raw 16S rRNA amplicon sequences for communities assembled in glucose under different migration treatments	This study	SRA: PRJNA761777
Raw 16S rRNA amplicon sequences for communities assembled in alternate carbon sources	This study	SRA: PRJNA761387
Community abundance data	Goldford et al., 2018	https://doi.org/10.5281/zenodo.3817698
Software and algorithms
Source data files and code used to generate the figures.	This study	https://github.com/sylestrela/Estrelaetal2021_FunctionalAttractors (https://doi.org/10.5281/zenodo.5510318)
Code for the FBA simulations.	This study	https://github.com/vilacelestin/Estrelaetal2021_FunctionalAttractors (https://doi.org/10.5281/zenodo.5510298)
R (version 3.4.3)	(R Core Team, 2017) R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. https://www.r-project.org/	RRID:SCR_001905
DADA2 (version 1.6.0)	Callahan et al., 2016	N/A
COBRApy (version 0.17.1)	Ebrahim A, Lerman JA, Palsson BO, Hyduke DR. COBRApy: COnstraints-Based Reconstruction and Analysis for Python. BMC Syst Biol. 2013;7: 74.	RRID:SCR_012096
Mathematica (version 11.0.1.0)	Wolfram	RRID:SCR_014448