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van Velzen E. High importance of indirect evolutionary rescue in a small food web. Ecol Lett 2023; 26:2110-2121. [PMID: 37807971 DOI: 10.1111/ele.14321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 10/10/2023]
Abstract
Evolutionary rescue may allow species to survive environmental change, but how this mechanism operates in food webs is poorly understood. Here, the evolutionary rescue was investigated in a small model food web, systematically allowing the evolution of each single species in order to reveal how its adaptation affects the persistence of itself and others. The impact of evolution was highly species-specific and not necessarily positive: only one species, the specialist predator, consistently had a positive impact on overall persistence. Most strikingly, evolution overwhelmingly affected other species: rescue of others (indirect rescue) was far more frequent than self-rescue, and negative effects were nearly always indirect. This demonstrates that evolutionary rescue in food webs is inextricably bound up with species interactions, as the effects of evolution in one species ripple through the entire community. It is therefore critically important to consider the food web context in efforts to understand how species may survive global change.
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Affiliation(s)
- Ellen van Velzen
- Department of Ecology and Ecosystem Modelling, Institute of Biochemistry and Biology, University of Potsdam, Potsdam, Germany
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2
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Fronhofer EA, Corenblit D, Deshpande JN, Govaert L, Huneman P, Viard F, Jarne P, Puijalon S. Eco-evolution from deep time to contemporary dynamics: The role of timescales and rate modulators. Ecol Lett 2023; 26 Suppl 1:S91-S108. [PMID: 37840024 DOI: 10.1111/ele.14222] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 10/17/2023]
Abstract
Eco-evolutionary dynamics, or eco-evolution for short, are often thought to involve rapid demography (ecology) and equally rapid heritable phenotypic changes (evolution) leading to novel, emergent system behaviours. We argue that this focus on contemporary dynamics is too narrow: Eco-evolution should be extended, first, beyond pure demography to include all environmental dimensions and, second, to include slow eco-evolution which unfolds over thousands or millions of years. This extension allows us to conceptualise biological systems as occupying a two-dimensional time space along axes that capture the speed of ecology and evolution. Using Hutchinson's analogy: Time is the 'theatre' in which ecology and evolution are two interacting 'players'. Eco-evolutionary systems are therefore dynamic: We identify modulators of ecological and evolutionary rates, like temperature or sensitivity to mutation, which can change the speed of ecology and evolution, and hence impact eco-evolution. Environmental change may synchronise the speed of ecology and evolution via these rate modulators, increasing the occurrence of eco-evolution and emergent system behaviours. This represents substantial challenges for prediction, especially in the context of global change. Our perspective attempts to integrate ecology and evolution across disciplines, from gene-regulatory networks to geomorphology and across timescales, from today to deep time.
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Affiliation(s)
| | - Dov Corenblit
- GEOLAB, Université Clermont Auvergne, CNRS, Clermont-Ferrand, France
- Laboratoire écologie fonctionnelle et environnement, Université Paul Sabatier, CNRS, INPT, UPS, Toulouse, France
| | | | - Lynn Govaert
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
| | - Philippe Huneman
- Institut d'Histoire et de Philosophie des Sciences et des Techniques (CNRS/Université Paris I Sorbonne), Paris, France
| | - Frédérique Viard
- ISEM, Université de Montpellier, CNRS, IRD, EPHE, Montpellier, France
| | - Philippe Jarne
- CEFE, UMR 5175, CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - IRD - EPHE, Montpellier Cedex 5, France
| | - Sara Puijalon
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, ENTPE, UMR 5023 LEHNA, Villeurbanne, France
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Stoks R, Tüzün N. Editorial overview: global change: coping with the complexity of interacting stressors, interacting responses, and their feedback loops. CURRENT OPINION IN INSECT SCIENCE 2022; 53:100949. [PMID: 35809858 DOI: 10.1016/j.cois.2022.100949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- Robby Stoks
- Department of Biology, University of Leuven, Debériotstraat 32, B-3000 Leuven, Belgium.
| | - Nedim Tüzün
- Department of Evolutionary and Integrative Ecology, IGB Berlin (Leibniz Institute of freshwater Ecology and Inland Fisheries), Müggelseedamm 301, 12587 Berlin, Germany.
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Hermann RJ, Becks L. Change in prey genotype frequency rescues predator from extinction. ROYAL SOCIETY OPEN SCIENCE 2022; 9:220211. [PMID: 35754995 PMCID: PMC9214283 DOI: 10.1098/rsos.220211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/27/2022] [Indexed: 05/03/2023]
Abstract
Indirect evolutionary rescue (IER) is a mechanism where a non-evolving species is saved from extinction in an otherwise lethal environment by evolution in an interacting species. This process has been described in a predator-prey model, where extinction of the predator is prevented by a shift in the frequency of defended towards undefended prey when reduced predator densities lower selection for defended prey. We test here how increased mortality and the initial frequencies of the prey types affect IER. Combining the analysis of model simulations and experiments with rotifers feeding on algae we show IER in the presence of increased predator mortality. We found that IER was dependent on the ability of the prey to evolve as well as on the frequency of the defended prey. High initial frequencies of defended prey resulted in predator extinction despite the possibility for prey evolution, as the increase in undefended prey was delayed too much to allow predator rescue. This frequency dependency for IER was more pronounced for higher predator mortalities. Our findings can help informing the development of conservation and management strategies that consider evolutionary responses in communities to environmental changes.
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Affiliation(s)
- Ruben Joseph Hermann
- Aquatic Ecology and Evolution Group, Limnological Institute University Konstanz, Konstanz, Germany
| | - Lutz Becks
- Aquatic Ecology and Evolution Group, Limnological Institute University Konstanz, Konstanz, Germany
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Wojcik LA, Ceulemans R, Gaedke U. Functional diversity buffers the effects of a pulse perturbation on the dynamics of tritrophic food webs. Ecol Evol 2021; 11:15639-15663. [PMID: 34824780 PMCID: PMC8601937 DOI: 10.1002/ece3.8214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 09/08/2021] [Accepted: 09/21/2021] [Indexed: 11/28/2022] Open
Abstract
Biodiversity decline causes a loss of functional diversity, which threatens ecosystems through a dangerous feedback loop: This loss may hamper ecosystems' ability to buffer environmental changes, leading to further biodiversity losses. In this context, the increasing frequency of human-induced excessive loading of nutrients causes major problems in aquatic systems. Previous studies investigating how functional diversity influences the response of food webs to disturbances have mainly considered systems with at most two functionally diverse trophic levels. We investigated the effects of functional diversity on the robustness, that is, resistance, resilience, and elasticity, using a tritrophic-and thus more realistic-plankton food web model. We compared a non-adaptive food chain with no diversity within the individual trophic levels to a more diverse food web with three adaptive trophic levels. The species fitness differences were balanced through trade-offs between defense/growth rate for prey and selectivity/half-saturation constant for predators. We showed that the resistance, resilience, and elasticity of tritrophic food webs decreased with larger perturbation sizes and depended on the state of the system when the perturbation occurred. Importantly, we found that a more diverse food web was generally more resistant and resilient but its elasticity was context-dependent. Particularly, functional diversity reduced the probability of a regime shift toward a non-desirable alternative state. The basal-intermediate interaction consistently determined the robustness against a nutrient pulse despite the complex influence of the shape and type of the dynamical attractors. This relationship was strongly influenced by the diversity present and the third trophic level. Overall, using a food web model of realistic complexity, this study confirms the destructive potential of the positive feedback loop between biodiversity loss and robustness, by uncovering mechanisms leading to a decrease in resistance, resilience, and potentially elasticity as functional diversity declines.
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Affiliation(s)
- Laurie Anne Wojcik
- Ecology and Ecosystem Modelling GroupUniversity of PotsdamPotsdamGermany
| | - Ruben Ceulemans
- Ecology and Ecosystem Modelling GroupUniversity of PotsdamPotsdamGermany
| | - Ursula Gaedke
- Ecology and Ecosystem Modelling GroupUniversity of PotsdamPotsdamGermany
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Faillace CA, Sentis A, Montoya JM. Eco-evolutionary consequences of habitat warming and fragmentation in communities. Biol Rev Camb Philos Soc 2021; 96:1933-1950. [PMID: 33998139 PMCID: PMC7614044 DOI: 10.1111/brv.12732] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 04/23/2021] [Accepted: 04/27/2021] [Indexed: 01/17/2023]
Abstract
Eco-evolutionary dynamics can mediate species and community responses to habitat warming and fragmentation, two of the largest threats to biodiversity and ecosystems. The eco-evolutionary consequences of warming and fragmentation are typically studied independently, hindering our understanding of their simultaneous impacts. Here, we provide a new perspective rooted in trade-offs among traits for understanding their eco-evolutionary consequences. On the one hand, temperature influences traits related to metabolism, such as resource acquisition and activity levels. Such traits are also likely to have trade-offs with other energetically costly traits, like antipredator defences or dispersal. On the other hand, fragmentation can influence a variety of traits (e.g. dispersal) through its effects on the spatial environment experienced by individuals, as well as properties of populations, such as genetic structure. The combined effects of warming and fragmentation on communities should thus reflect their collective impact on traits of individuals and populations, as well as trade-offs at multiple trophic levels, leading to unexpected dynamics when effects are not additive and when evolutionary responses modulate them. Here, we provide a road map to navigate this complexity. First, we review single-species responses to warming and fragmentation. Second, we focus on consumer-resource interactions, considering how eco-evolutionary dynamics can arise in response to warming, fragmentation, and their interaction. Third, we illustrate our perspective with several example scenarios in which trait trade-offs could result in significant eco-evolutionary dynamics. Specifically, we consider the possible eco-evolutionary consequences of (i) evolution in thermal performance of a species involved in a consumer-resource interaction, (ii) ecological or evolutionary changes to encounter and attack rates of consumers, and (iii) changes to top consumer body size in tri-trophic food chains. In these scenarios, we present a number of novel, sometimes counter-intuitive, potential outcomes. Some of these expectations contrast with those solely based on ecological dynamics, for example, evolutionary responses in unexpected directions for resource species or unanticipated population declines in top consumers. Finally, we identify several unanswered questions about the conditions most likely to yield strong eco-evolutionary dynamics, how better to incorporate the role of trade-offs among traits, and the role of eco-evolutionary dynamics in governing responses to warming in fragmented communities.
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Affiliation(s)
- Cara A. Faillace
- Theoretical and Experimental Ecology Station, French National Centre of Scientific Research (CNRS), 2 Route du CNRS, Moulis, 09200, France,Address for correspondence (Tel: +33 5 61 04 05 89; )
| | - Arnaud Sentis
- Theoretical and Experimental Ecology Station, French National Centre of Scientific Research (CNRS), 2 Route du CNRS, Moulis, 09200, France,INRAE, Aix Marseille University, UMR RECOVER, 3275 Route de Cézanne- CS 40061, Aix-en-Provence Cedex 5, 13182, France
| | - José M. Montoya
- Theoretical and Experimental Ecology Station, French National Centre of Scientific Research (CNRS), 2 Route du CNRS, Moulis, 09200, France
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Rapid evolution destabilizes species interactions in a fluctuating environment. ISME JOURNAL 2020; 15:450-460. [PMID: 33024292 DOI: 10.1038/s41396-020-00787-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 09/09/2020] [Accepted: 09/18/2020] [Indexed: 12/16/2022]
Abstract
Positive species interactions underlie the functioning of ecosystems. Given their importance, it is crucial to understand the stability of positive interactions over evolutionary timescales, in both constant and fluctuating environments; e.g., environments interrupted with periods of competition. We addressed this question using a two-species microbial system in which we modulated interactions according to the nutrient provided. We evolved in parallel four experimental replicates of species growing in isolation or together in consortia for 200 generations in both a constant and fluctuating environment with daily changes between commensalism and competition. We sequenced full genomes of single clones isolated at different time points during the experiment. We found that the two species coexisted over 200 generations in the constant commensal environment. In contrast, in the fluctuating environment, coexistence broke down when one of the species went extinct in two out of four cases. We showed that extinction was highly deterministic: when we replayed the evolution experiment from an intermediate time point we repeatably reproduced species extinction. We further show that these dynamics were driven by adaptive mutations in a small set of genes. In conclusion, in a fluctuating environment, rapid evolution destabilizes the long-term stability of positive pairwise interactions.
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Anthropogenic stressors impact fish sensory development and survival via thyroid disruption. Nat Commun 2020; 11:3614. [PMID: 32681015 PMCID: PMC7367887 DOI: 10.1038/s41467-020-17450-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 06/26/2020] [Indexed: 01/17/2023] Open
Abstract
Larval metamorphosis and recruitment represent critical life-history transitions for most teleost fishes. While the detrimental effects of anthropogenic stressors on the behavior and survival of recruiting fishes are well-documented, the physiological mechanisms that underpin these patterns remain unclear. Here, we use pharmacological treatments to highlight the role that thyroid hormones (TH) play in sensory development and determining anti-predator responses in metamorphosing convict surgeonfish, Acanthurus triostegus. We then show that high doses of a physical stressor (increased temperature of +3 °C) and a chemical stressor (the pesticide chlorpyrifos at 30 µg L−1) induced similar defects by decreasing fish TH levels and affecting their sensory development. Stressor-exposed fish experienced higher predation; however, their ability to avoid predation improved when they received supplemental TH. Our results highlight that two different anthropogenic stressors can affect critical developmental and ecological transitions via the same physiological pathway. This finding provides a unifying mechanism to explain past results and underlines the profound threat anthropogenic stressors pose to fish communities. Anthropogenic stressors affect many aspects of marine organismal health. Here, the authors expose surgeonfish to temperature and pesticide stressors and show that the stressors, separately and in combination, have adverse effects on thyroid signaling, which disrupts several sensory systems and important predation defenses.
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Brunner FS, Deere JA, Egas M, Eizaguirre C, Raeymaekers JAM. The diversity of eco‐evolutionary dynamics: Comparing the feedbacks between ecology and evolution across scales. Funct Ecol 2019. [DOI: 10.1111/1365-2435.13268] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Jacques A. Deere
- Institute for Biodiversity and Ecosystem DynamicsUniversity of Amsterdam Amsterdam The Netherlands
| | - Martijn Egas
- Institute for Biodiversity and Ecosystem DynamicsUniversity of Amsterdam Amsterdam The Netherlands
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