Benthic composition changes on coral reefs at global scales

Nature Ecology & Evolution, Год журнала: 2023, Номер 7(1), С. 71 - 81

Опубликована: Янв. 9, 2023

Язык: Английский

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Coral reefs benefit from reduced land–sea impacts under ocean warming

Nature, Год журнала: 2023, Номер 621(7979), С. 536 - 542

Опубликована: Авг. 9, 2023

Coral reef ecosystems are being fundamentally restructured by local human impacts and climate-driven marine heatwaves that trigger mass coral bleaching mortality1. Reducing can increase resistance to recovery from bleaching2. However, resource managers lack clear advice on targeted actions best support reefs under climate change3 sector-based governance means most land- sea-based management efforts remain siloed4. Here we combine surveys of change with a unique 20-year time series land-sea encompassed an unprecedented heatwave in Hawai'i. Reefs increased herbivorous fish populations reduced land-based impacts, such as wastewater pollution urban runoff, had positive cover trajectories predisturbance. These also experienced modest reduction mortality following severe heat stress compared enhanced impacts. Scenario modelling indicated simultaneously reducing results three- sixfold greater probability having high reef-builder four years postdisturbance than if either occurred isolation. International protect 30% Earth's land ocean 2030 underway5. Our reveal integrated could help achieve coastal conservation goals provide the opportunity persist our changing climate.

Язык: Английский

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Biodiversity increases ecosystem functions despite multiple stressors on coral reefs

Nature Ecology & Evolution, Год журнала: 2020, Номер 4(7), С. 919 - 926

Опубликована: Май 18, 2020

Язык: Английский

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Deficits in functional trait diversity following recovery on coral reefs

Proceedings of the Royal Society B Biological Sciences, Год журнала: 2020, Номер 287(1918), С. 20192628 - 20192628

Опубликована: Янв. 8, 2020

The disturbance regimes of ecosystems are changing, and prospects for continued recovery remain unclear. New assemblages with altered species composition may be deficient in key functional traits. Alternatively, important traits sustained by that replace those decline (response diversity). Here, we quantify the response diversity coral using case studies three locations. Despite return trajectories cover, original diverse attributes failed to recover at each location. Response reassembly trait space was limited, varied according biogeographic differences dominant, rapidly recovering species. deficits identified here suggest cover cannot assure reef diversity, shortening intervals between disturbances can limit among functionally

Язык: Английский

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Protecting connectivity promotes successful biodiversity and fisheries conservation

Science, Год журнала: 2022, Номер 375(6578), С. 336 - 340

Опубликована: Янв. 20, 2022

The global decline of coral reefs has led to calls for strategies that reconcile biodiversity conservation and fisheries benefits. Still, considerable gaps in our understanding the spatial ecology ecosystem services remain. We combined information on larval dispersal networks estimates human pressure test importance connectivity service provision. found receiving larvae from highly connected corridors were associated with high fish species richness. Generally, "sinks" contained twice as much biomass "sources" exhibited greater resilience when protected. Despite their potential support persistence sustainable fisheries, up 70% important corridors, sinks, source remain unprotected, emphasizing need increased protection well-connected reefs.

Язык: Английский

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Corals at the edge of environmental limits: A new conceptual framework to re-define marginal and extreme coral communities

The Science of The Total Environment, Год журнала: 2023, Номер 884, С. 163688 - 163688

Опубликована: Апрель 25, 2023

The worldwide decline of coral reefs has renewed interest in communities at the edge environmental limits because they have potential to serve as resilience hotspots and climate change refugia, can provide insights into how might function future ocean conditions. These are often referred marginal or extreme but few definitions exist usage these terms therefore been inconsistent. This creates significant challenges for categorising poorly studied synthesising data across locations. Furthermore, this impedes our understanding persist their lessons reef survival. Here, we propose that related distinct a novel conceptual framework redefine them. Specifically, define extremeness solely based on conditions (i.e., large deviations from optimal mean and/or variance) marginality ecological criteria altered community composition ecosystem functioning). joint independent assessment is critical avoid common pitfalls where existing outside presumed development automatically considered inferior more traditional settings. We further evaluate differential natural laboratories, discuss strategies conservation management well priorities research. Our new classification provides an important tool improve corals leverage knowledge optimise conservation, restoration rapidly changing ocean.

Язык: Английский

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Safeguarding nutrients from coral reefs under climate change

Nature Ecology & Evolution, Год журнала: 2022, Номер 6(12), С. 1808 - 1817

Опубликована: Окт. 3, 2022

Язык: Английский

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Diversity of the Pacific Ocean coral reef microbiome

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Июнь 1, 2023

Coral reefs are among the most diverse ecosystems on Earth. They support high biodiversity of multicellular organisms that strongly rely associated microorganisms for health and nutrition. However, extent coral reef microbiome diversity its distribution at oceanic basin-scale remains to be explored. Here, we systematically sampled 3 morphotypes, 2 fish species, planktonic communities in 99 from 32 islands across Pacific Ocean, assess composition biogeography. We show a very large richness compared other environments, which extrapolated all fishes corals Pacific, approximates current estimated total prokaryotic entire Microbial vary within animal biomes (coral, fish, plankton), geographically. For corals, cross-ocean patterns different those known organisms. Within each morphotype, community is always determined by geographic distance first, both island ocean scale, then environment. Our unprecedented sampling effort microbiomes, as part Tara expedition, provides new insight into global microbial diversity, factors driving their distribution, biocomplexity ecosystems.

Язык: Английский

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Where land meets sea: Intertidal areas as key‐habitats for sharks and rays

Fish and Fisheries, Год журнала: 2023, Номер 24(3), С. 407 - 426

Опубликована: Фев. 21, 2023

Abstract Intertidal habitats (i.e. marine that are (partially) exposed during low tide) have traditionally been studied from a shorebird‐centred perspective. We show these accessible and important to predators such as elasmobranchs sharks rays). Our synthesis shows at least 43 shark 45 ray species, of which 54.5% currently threatened, use intertidal habitats. Elasmobranchs mostly for feeding refugia, but also parturition thermoregulation. However, the motivation habitat remains unclear due limitations observe elasmobranch behaviour in dynamic argue can play an role food webs by on shared resources high tide ‘high‐tide predators’), consumed terrestrial or avian ‘low‐tide predators’). In addition, able change bio‐geomorphology increasing heterogeneity activities may alter resource availability other consumers. discuss how ecological is being affected continued overexploitation conversely, global loss areas poses additional threat already vulnerable taxonomic group. conclude studies ecology should include both low‐tide (e.g. shorebirds) high‐tide elasmobranchs) predatory guilds their interactions. The species provides compelling arguments conservation areas.

Язык: Английский

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Functional changes across marine habitats due to ocean acidification

Global Change Biology, Год журнала: 2024, Номер 30(1)

Опубликована: Янв. 1, 2024

Global environmental change drives diversity loss and shifts in community structure. A key challenge is to better understand the impacts on ecosystem function connect species trait of assemblages with properties that are turn linked functioning. Here we quantify composition associated ocean acidification (OA) by using field measurements at marine CO

Язык: Английский

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