Organismal trade-offs and the pace of planktonic life.

defence growth vs reproduction life histories resource acquisition stealth vs bold behaviour

Journal

Biological reviews of the Cambridge Philosophical Society
ISSN: 1469-185X
Titre abrégé: Biol Rev Camb Philos Soc
Pays: England
ID NLM: 0414576

Informations de publication

Date de publication:
10 Jun 2024
Historique:
revised: 27 05 2024
received: 20 12 2023
accepted: 29 05 2024
medline: 10 6 2024
pubmed: 10 6 2024
entrez: 10 6 2024
Statut: aheadofprint

Résumé

No one is perfect, and organisms that perform well in some habitat or with respect to some tasks, do so at the cost of performance in others: there are inescapable trade-offs. Organismal trade-offs govern the structure and function of ecosystems and attempts to demonstrate and quantify trade-offs have therefore been an important goal for ecologists. In addition, trade-offs are a key component in trait-based ecosystem models. Here, I synthesise evidence of trade-offs in plankton organisms, from bacteria to zooplankton, and show how a slow-fast gradient in life histories emerges. I focus on trade-offs related to the main components of an organism's Darwinian fitness, that is resource acquisition, survival, and propagation. All consumers need to balance the need to eat without being eaten, and diurnal vertical migration, where zooplankton hide at depth during the day to avoid visual predators but at the cost of missed feeding opportunities in the productive surface layer, is probably the best documented result of this trade-off. However, there are many other more subtle but equally important behaviours that similarly are the result of an optimisation of these trade-offs. Most plankton groups have also developed more explicit defence mechanisms, such as toxin production or evasive behaviours that are harnessed in the presence of their predators; the costs of these have often proved difficult to quantify or even demonstrate, partly because they only materialise under natural conditions. Finally, all multicellular organisms must allocate time and resources among growth, reproduction, and maintenance (e.g. protein turnover and DNA repair), and mate finding may compromise both survival and feeding. The combined effects of all these trade-offs is the emergence of a slow-fast gradient in the pace-of-life, likely the most fundamental principle for the organisation of organismal life histories. This crystallisation of trade-offs may offer a path to further simplification of trait-based models of marine ecosystems.

Identifiants

pubmed: 38855937
doi: 10.1111/brv.13108
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Subventions

Organisme : Villum Fonden
Organisme : Simons Foundation
ID : 931976

Informations de copyright

© 2024 The Author(s). Biological Reviews published by John Wiley & Sons Ltd on behalf of Cambridge Philosophical Society.

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Auteurs

Thomas Kiørboe (T)

Centre for Ocean Life, DTU Aqua, Technical University of Denmark, 2800 Kgs, Kemitorvet, Kgs. Lyngby, Denmark.

Classifications MeSH