Rapid plant trait evolution can alter coastal wetland resilience to sea level rise

Science, Journal Year: 2023, Volume and Issue: 379(6630), P. 393 - 398

Published: Jan. 26, 2023

Rapid evolution remains a largely unrecognized factor in models that forecast the fate of ecosystems under scenarios global change. In this work, we quantified roles heritable variation plant traits and trait explaining variability forecasts state coastal wetland ecosystems. A common garden study genotypes dominant sedge Schoenoplectus americanus , “resurrected” from time-stratified seed banks, revealed explained key ecosystem attributes such as allocation distribution belowground biomass. Incorporating into an model altered predictions carbon accumulation soil surface accretion (a determinant marsh resilience to sea level rise), demonstrating importance accounting for evolutionary processes when forecasting dynamics.

Language: Английский

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The value of long-term ecological research for evolutionary insights

Nature Ecology & Evolution, Journal Year: 2024, Volume and Issue: 8(9), P. 1584 - 1592

Published: Aug. 2, 2024

Language: Английский

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Population-specific responses to pollution exposure suggest local adaptation of invasive red swamp crayfish Procambarus clarkii along the Mediterranean French coastline

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(29), P. 42314 - 42329

Published: June 13, 2024

Anthropogenic stressors can have an impact in a broad range of physiological processes and be major selective force leading to rapid evolution local population adaptation. In this study, three populations the invasive crayfish Procambarus clarkii were investigated. They are geographically separated for at least 20 years, live different abiotic environments: freshwater inland lake (Salagou lake) with no anthropogenic influence two other coastal wetlands regularly polluted by pesticides along Mediterranean coast (Camargue region Bages-Sigean lagoon). Collected adults genetically characterized using mitochondrial COI gene haplotype frequencies analyzed genetic variability within between populations. Results revealed higher diversity these than any previous report France, more seven haplotypes single population. The contrasting Camargue suggest times sources introduction. To identify differences key responses populations, individuals from each maintained controlled conditions. Data on oxygen consumption rates indicate that Salagou possess high inter-individual compared low individual specific adaptation Population-specific identified when exposed pesticide cocktail containing azoxystrobin oxadiazon sublethal concentrations. was only one altered hydro-osmotic balance due pollutant exposure change protease activity hepatopancreas. These results phenotypic suggesting adaptations level.

Language: Английский

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Complex eco‐evolutionary responses of a foundational coastal marsh plant to global change

New Phytologist, Journal Year: 2023, Volume and Issue: 240(5), P. 2121 - 2136

Published: July 14, 2023

Summary Predicting the fate of coastal marshes requires understanding how plants respond to rapid environmental change. Environmental change can elicit shifts in trait variation attributable phenotypic plasticity and act as selective agents shift means, resulting evolution. Comparably, less is known about potential for responses reflect evolution plasticity. Here, we assessed relative magnitude eco‐evolutionary interacting global factors using a multifactorial experiment. We exposed replicates 32 Schoenoplectus americanus genotypes ‘resurrected’ from century‐long, soil‐stored seed banks ambient or elevated CO 2 , varying levels inundation, presence competing marsh grass, across two sites with different salinities. Comparisons among age cohorts provenances indicated that has evolved five seven traits measured. Accounting evolutionary (i.e. sources heritable variation) statistical models explained an additional 9–31% variation. Our findings indicate mediate ecological The plant over last century suggests could play role pacing future ecosystem response

Language: Английский

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Game Theory for Managing Evolving Systems: Challenges and Opportunities of Including Vector-Valued Strategies and Life-History Traits

Dynamic Games and Applications, Journal Year: 2023, Volume and Issue: 13(4), P. 1130 - 1155

Published: Dec. 1, 2023

Language: Английский

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The Potential for Experimental Evolution to Uncover Trade‐Offs Associated With Anthropogenic and Climate Change Adaptation

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(11)

Published: Nov. 1, 2024

ABSTRACT Evolutionary responses to climate change may incur trade‐offs due energetic constraints and mechanistic limitations, which are both influenced by environmental context. Adaptation one stressor result in life history trade‐offs, canalization of phenotypic plasticity, the inability tolerate other stressors, among potential costs. While incurred during adaptation difficult detect natural populations, experimental evolution can provide important insights measuring correlated selection as populations adapt changing environments. However, studies testing for have generally lagged behind growth use studies. We argue that generated few tested make a strong case including these types measurements future adaptation. For example, there is emerging consensus from tolerance plasticity an often‐observed outcome anthropogenic change. In recent years, been strengthened sequencing provides promising new avenues understanding molecular mechanisms underlying observed trade‐offs.

Language: Английский

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Environmental Stress and Resource Availability Affect the Maintenance of Genetic Variation in a Dominant Marsh Plant (Spartina alterniflora)

Molecular Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 17, 2024

Changes in genetic variation, and particularly documented declines diversity, influence not only evolutionary potential but also current ecological function. Given this context, it is essential to understand what abiotic biotic factors promote or disrupt the maintenance of variation natural populations. To address knowledge gap context salt marsh plants, we established a three-year field experiment, testing independent interactive effects nutrient availability physical stress on plant (Spartina alterniflora) genotypic diversity. We found that environments with high (i.e., low elevations), diversity declined over time. However, addition nutrients promoted Spartina across gradient. observed changes composition divergence environmental treatments, indicating among genotypes their response these factors. Our results suggest tidal inundation acts selective gradient within coastal marshes, altering landscape. Moreover, our work highlights increasing due continued sea-level rise may be modulated by concomitant inputs, cascading structure

Language: Английский

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Physical Ecosystem Engineers and the Functioning of Estuaries and Coasts

Elsevier eBooks, Journal Year: 2023, Volume and Issue: unknown, P. 607 - 644

Published: Dec. 13, 2023

Language: Английский

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