Time delays modulate the stability of complex ecosystems

What drives the stability, or instability, of complex ecosystems? This question sits at the heart of community ecology and has motivated a large body of theoretical work exploring how community properties shape ecosystem dynamics. However, the overwhelming majority of current theory assumes that spe...

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Päätekijät: Yang, Y, Foster, KR, Coyte, KZ, Li, A
Aineistotyyppi: Journal article
Kieli:English
Julkaistu: Springer Nature 2023
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author Yang, Y
Foster, KR
Coyte, KZ
Li, A
author_facet Yang, Y
Foster, KR
Coyte, KZ
Li, A
author_sort Yang, Y
collection OXFORD
description What drives the stability, or instability, of complex ecosystems? This question sits at the heart of community ecology and has motivated a large body of theoretical work exploring how community properties shape ecosystem dynamics. However, the overwhelming majority of current theory assumes that species interactions are instantaneous, meaning that changes in the abundance of one species will lead to immediate changes in the abundances of its partners. In practice, time delays in how species respond to one another are widespread across ecological contexts, yet the impact of these delays on ecosystems remains unclear. Here we derive a new body of theory to comprehensively study the impact of time delays on ecological stability. We find that time delays are important for ecosystem stability. Large delays are typically destabilizing but, surprisingly, short delays can substantially increase community stability. Moreover, in stark contrast to delay-free systems, delays dictate that communities with more abundant species can be less stable than ones with less abundant species. Finally, we show that delays fundamentally shift how species interactions impact ecosystem stability, with communities of mixed interaction types becoming the most stable class of ecosystem. Our work demonstrates that time delays can be critical for the stability of complex ecosystems.
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spelling oxford-uuid:c81e09d4-4a84-48e4-97d6-d47975e15a9f2023-12-20T16:20:09ZTime delays modulate the stability of complex ecosystemsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c81e09d4-4a84-48e4-97d6-d47975e15a9fEnglishSymplectic ElementsSpringer Nature2023Yang, YFoster, KRCoyte, KZLi, AWhat drives the stability, or instability, of complex ecosystems? This question sits at the heart of community ecology and has motivated a large body of theoretical work exploring how community properties shape ecosystem dynamics. However, the overwhelming majority of current theory assumes that species interactions are instantaneous, meaning that changes in the abundance of one species will lead to immediate changes in the abundances of its partners. In practice, time delays in how species respond to one another are widespread across ecological contexts, yet the impact of these delays on ecosystems remains unclear. Here we derive a new body of theory to comprehensively study the impact of time delays on ecological stability. We find that time delays are important for ecosystem stability. Large delays are typically destabilizing but, surprisingly, short delays can substantially increase community stability. Moreover, in stark contrast to delay-free systems, delays dictate that communities with more abundant species can be less stable than ones with less abundant species. Finally, we show that delays fundamentally shift how species interactions impact ecosystem stability, with communities of mixed interaction types becoming the most stable class of ecosystem. Our work demonstrates that time delays can be critical for the stability of complex ecosystems.
spellingShingle Yang, Y
Foster, KR
Coyte, KZ
Li, A
Time delays modulate the stability of complex ecosystems
title Time delays modulate the stability of complex ecosystems
title_full Time delays modulate the stability of complex ecosystems
title_fullStr Time delays modulate the stability of complex ecosystems
title_full_unstemmed Time delays modulate the stability of complex ecosystems
title_short Time delays modulate the stability of complex ecosystems
title_sort time delays modulate the stability of complex ecosystems
work_keys_str_mv AT yangy timedelaysmodulatethestabilityofcomplexecosystems
AT fosterkr timedelaysmodulatethestabilityofcomplexecosystems
AT coytekz timedelaysmodulatethestabilityofcomplexecosystems
AT lia timedelaysmodulatethestabilityofcomplexecosystems