Extending the natural adaptive capacity of coral holobionts

Nature Reviews Earth & Environment, Journal Year: 2021, Volume and Issue: 2(11), P. 747 - 762

Published: Oct. 12, 2021

Language: Английский

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Avenues of reef-building coral acclimatization in response to rapid environmental change

Journal of Experimental Biology, Journal Year: 2021, Volume and Issue: 224(Suppl_1)

Published: Feb. 15, 2021

ABSTRACT The swiftly changing climate presents a challenge to organismal fitness by creating mismatch between the current environment and phenotypes adapted historic conditions. Acclimatory mechanisms may be especially crucial for sessile benthic marine taxa, such as reef-building corals, where change factors including ocean acidification increasing temperature elicit strong negative physiological responses bleaching, disease mortality. Here, within context of multiple stressors threatening organisms, I describe wealth metaorganism response rapid ontogenetic shifts in organism interactions with that can generate plasticity. then highlight need consider evolutionary an adaptive (epi)genetic continuum. Building on definitions these continuum, also present how interplay microbiome, epigenetics parental effects creates additional avenues acclimatization. To under what conditions epigenetic inheritance has more substantial role, propose investigation into offset timing gametogenesis leading different environmental integration times eggs sperm consequences this gamete compatibility. Collectively, non-genetic, yet heritable phenotypic plasticity will have significant ecological implications persistence change. As such, corals ideal time-sensitive models further development our understanding feedback loops multi-player

Language: Английский

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Coral bleaching response is unaltered following acclimatization to reefs with distinct environmental conditions

Proceedings of the National Academy of Sciences, Journal Year: 2021, Volume and Issue: 118(22)

Published: May 28, 2021

Urgent action is needed to prevent the demise of coral reefs as climate crisis leads an increasingly warmer and more acidic ocean. Propagating change-resistant corals restore degraded one promising strategy; however, empirical evidence determine whether stress resistance affected by transplantation beyond a coral's native reef. Here, we assessed performance bleaching-resistant individuals two species following reciprocal between with distinct pH, salinity, dissolved oxygen, sedimentation, flow dynamics heat response altered exposure novel physicochemical conditions in situ. Critically, had no influence on responses, indicating that this trait was relatively fixed. In contrast, growth highly plastic, not predictive environment. Coral metabolic rates overall fitness were higher at reef flow, diel fluctuations pH did differ cross-transplanted corals, acclimatization via plasticity within just 3 mo. Conversely, cross-transplants second than thus increasing potential recipient population. This experiment conducted during nonbleaching year, so benefits population are likely enhanced bleaching years. summary, study demonstrates outplanting tool for elevating populations ocean warming.

Language: Английский

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Translating the 10 golden rules of reforestation for coral reef restoration

Conservation Biology, Journal Year: 2022, Volume and Issue: 36(4)

Published: Jan. 25, 2022

Efforts are accelerating to protect and restore ecosystems globally. With trillions of dollars in ecosystem services at stake, no clear framework exists for developing or prioritizing approaches coral reefs even as efforts investment opportunities do so grow worldwide. Restoration may buy time climate change mitigation, but it lacks rigorous guidance meet objectives scalability effectiveness. Lessons from restoration terrestrial can should be rapidly adopted reef restoration. We propose how the 10 golden rules effective forest translated accelerate based on established principles resilience, management, local stewardship. summarize steps undertake a management strategy context diverse service values that provide. Outlining blueprint is timely more stakeholders seek UN Decade Ecosystem begins.Traducción de las Diez Reglas Oro la Reforestación para Restauración los Arrecifes Coral Resumen Cada vez son más esfuerzos proteger y restaurar ecosistemas nivel mundial. Con billones dólares en servicios ambientales juego, existe un marco trabajo desarrollar o priorizar estrategias restauración arrecifes incluso cuando todo el mundo aumentan oportunidades inversión. Puede que gane tiempo mitigación del cambio climático, pero carece directrices rigurosas cumplir objetivos adaptabilidad eficacia. Las lecciones ha brindado terrestres pueden deben adoptarse rápidamente coral. Proponemos una traducción diez reglas doradas forestal efectiva acelerar con base principios establecidos resiliencia, gestión administración local. Resumimos pasos emprender como estrategia manejo contexto valores diversos ambientales. Estamos delinear proyecto conforme actores buscan inicio Década ONU Ecosistemas.

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Within-population variability in coral heat tolerance indicates climate adaptation potential

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2022, Volume and Issue: 289(1981)

Published: Aug. 31, 2022

Coral reefs are facing unprecedented mass bleaching and mortality events due to marine heatwaves climate change. To avoid extirpation, corals must adapt. Individual variation in heat tolerance its heritability underpin the potential for coral adaptation. However, magnitude of variability within populations is largely unresolved. We address this knowledge gap by exposing from a single reef an experimental heatwave. found that double stress dosage was required induce most-tolerant 10%, compared least-tolerant 10% population. By end exposure, all were dead, whereas remained alive. contextualize scale result over coming century, we show under ambitious future emissions scenario, such differences thresholds equate up 17 years delay until onset annual conditions. limited only 10 high scenario. Our results substantial which suggests scope natural or assisted evolution limit impacts change short-term. For persist through adaptation keep pace with ocean warming, reductions be realized.

Language: Английский

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Selective breeding enhances coral heat tolerance to marine heatwaves

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Oct. 14, 2024

Marine heatwaves are becoming more frequent, widespread and severe, causing mass coral bleaching mortality. Natural adaptation may be insufficient to keep pace with climate warming, leading calls for selective breeding interventions enhance the ability of corals survive such heatwaves, i.e., their heat tolerance. However, heritability this trait-a prerequisite approaches-remains unknown. We show that selecting parent colonies high rather than low tolerance increased adult offspring (3-4-year-olds). This result held response both 1-week +3.5 °C 1-month +2.5 simulated marine heatwaves. In each case, narrow-sense (h

Language: Английский

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Host genotype and stable differences in algal symbiont communities explain patterns of thermal stress response of Montipora capitata following thermal pre-exposure and across multiple bleaching events

Coral Reefs, Journal Year: 2020, Volume and Issue: 40(1), P. 151 - 163

Published: Nov. 10, 2020

Language: Английский

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Census of heat tolerance among Florida's threatened staghorn corals finds resilient individuals throughout existing nursery populations

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2021, Volume and Issue: 288(1961)

Published: Oct. 20, 2021

The rapid loss of reef-building corals owing to ocean warming is driving the development interventions such as coral propagation and restoration, selective breeding assisted gene flow. Many these target naturally heat-tolerant individuals boost climate resilience, but challenges quickly reliably quantifying heat tolerance identifying thermotolerant have hampered implementation. Here, we used bleaching automated stress systems perform rapid, standardized assays on 229 colonies Acropora cervicornis across six nurseries spanning Florida's Coral Reef, USA. Analysis dose-response curves for each colony revealed a broad range in thermal among (approx. 2.5°C Fv/Fm ED50), with highly reproducible rankings independent tests (r = 0.76). Most phenotypic variation occurred within rather than between them, pointing potentially dominant role fixed genetic effects setting widespread distribution tolerant throughout population. identification provides immediately actionable information optimize nursery restoration programmes threatened staghorn corals. This work further blueprint future efforts identify source thermally conservation worldwide.

Language: Английский

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An Experimental Framework for Selectively Breeding Corals for Assisted Evolution

Frontiers in Marine Science, Journal Year: 2021, Volume and Issue: 8

Published: May 28, 2021

Coral cover on tropical reefs has declined during the last three decades due to combined effects of climate change, destructive fishing, pollution, and land use change. Drastic reductions in greenhouse gas emissions with effective coastal management conservation strategies are essential slow this decline. Innovative approaches, such as selective breeding for adaptive traits large-scale sexual propagation, being developed aim pre-adapting increased ocean warming. However, there still major gaps our understanding technical methodological constraints producing corals restoration interventions. Here we propose a framework selectively rearing them from eggs 2.5-year old colonies using coral Acropora digitifera model species. We present methods choosing crossing, enhancing early survivorship ex situ nurseries, outplanting monitoring natal reefs. used short-term (7-day) temperature stress assay select parental based heat tolerance excised branches. From six colonies, produced 12 distinct crosses, compared growth transferred nurseries or outplanted reef at different ages. demonstrate that is technically feasible small scales could be upscaled part restorative assisted evolution initiatives. Nonetheless, challenges overcome before can implemented viable tool, especially post-settlement phases. Although interdisciplinary approaches will needed many identified study, potential tool within managers toolbox support persistence selected face

Language: Английский

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Selecting Heat-Tolerant Corals for Proactive Reef Restoration

Frontiers in Marine Science, Journal Year: 2021, Volume and Issue: 8

Published: May 26, 2021

Coral reef restoration is an attractive tool for the management of degraded reefs; however, conventional approaches will not be effective under climate change. More proactive must integrate future environmental conditions into project design to ensure long-term viability restored corals during worsening bleaching events. Corals exist along a continuum stress-tolerant phenotypes that can leveraged enhance thermal resilience reefs through selective propagation heat-tolerant colonies. Several strategies selecting thermally tolerant stock are currently available and range broadly in scalability, cost, reproducibility, specificity. Different components coral holobiont have different utility practitioners as diagnostics drivers phenotypes, so selection tailored resources goals individual projects. There numerous unknowns potential trade-offs consider, but we argue focus on tolerance critical because do survive cannot contribute communities at all. Selective uses extant practically incorporated existing frameworks, putting researchers position perform empirical tests field trials now while there still window act.

Language: Английский

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