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Evangelista C, Dupeu J, Sandkjenn J, Pauli BD, Herland A, Meriguet J, Vøllestad LA, Edeline E. Ecological ramifications of adaptation to size-selective mortality. ROYAL SOCIETY OPEN SCIENCE 2021; 8:210842. [PMID: 34754498 PMCID: PMC8493199 DOI: 10.1098/rsos.210842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 09/10/2021] [Indexed: 05/28/2023]
Abstract
Size-selective mortality due to harvesting is a threat to numerous exploited species, but how it affects the ecosystem remains largely unexplored. Here, we used a pond mesocosm experiment to assess how evolutionary responses to opposite size-selective mortality interacted with the environment (fish density and light intensity used as a proxy of resource availability) to modulate fish populations, prey community composition and ecosystem functions. We used medaka (Oryzias latipes) previously selected over 10 generations for small size (harvest-like selection; small-breeder line) or large size (large-breeder line), which displayed slow somatic growth and early maturity or fast somatic growth and late maturity, respectively. Large-breeder medaka produced more juveniles, which seemed to grow faster than small-breeder ones but only under high fish density. Additionally, large-breeder medaka had an increased impact on some benthic prey, suggesting expanded diet breadth and/or enhanced foraging abilities. As a consequence, increased light stimulated benthic algae biomass only in presence of large-breeder medaka, which were presumably better at controlling benthic grazers. Aggregated effect sizes at the community and ecosystem levels revealed that the ecological effects of medaka evolution were of similar magnitude to those induced by the environment and fish introduction. These findings indicate the important environmental dependency of evolutionary response to opposite size-selective mortality on higher levels of biological organizations.
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Affiliation(s)
- Charlotte Evangelista
- Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway
| | - Julia Dupeu
- Sorbonne Université, CNRS, INRAE, IRD, Université Paris Est Créteil, Institut d'Ecologie et des Sciences de l'Environnement de Paris (iEES-Paris), Paris, France
| | - Joakim Sandkjenn
- Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway
| | - Beatriz Diaz Pauli
- Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway
- Department of Biological Science, University of Bergen, Bergen, Norway
| | - Anders Herland
- Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway
| | - Jacques Meriguet
- CEREEP Ecotron Île-de-France, UMS CNRS/ENS, Saint-Pierre-lès-Nemours, France
- Institut de Biologie de l'Ecole Normale Supérieure, CNRS, INSERM, PSL Research University, Paris, France
| | - Leif Asbjørn Vøllestad
- Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway
| | - Eric Edeline
- Sorbonne Université, CNRS, INRAE, IRD, Université Paris Est Créteil, Institut d'Ecologie et des Sciences de l'Environnement de Paris (iEES-Paris), Paris, France
- ESE, Ecology and Ecosystem Health, INRAE, Agrocampus-Ouest, Rennes, France
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Hämäläinen AM, Guenther A, Patrick SC, Schuett W. Environmental effects on the covariation among pace‐of‐life traits. Ethology 2020. [DOI: 10.1111/eth.13098] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Anni M. Hämäläinen
- Department of Biological Sciences University of Alberta Edmonton Alberta Canada
- Institute of Environmental Science Jagiellonian University Kraków Poland
- Department of Biological and Environmental Science University of Jyväskylä Jyväskylä Finland
| | - Anja Guenther
- Department of Evolutionary Biology Bielefeld University Bielefeld Germany
- Department of Evolutionary Genetics Max Planck Institute for Evolutionary Biology Plön Germany
| | | | - Wiebke Schuett
- Institute of Zoology Universität Hamburg Hamburg Germany
- School of Life Sciences University of Sussex Brighton UK
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