Evolution and connectivity influence the persistence and recovery of coral reefs under climate change in the Caribbean, Southwest Pacific, and Coral Triangle

Global Change Biology, Journal Year: 2021, Volume and Issue: 27(18), P. 4307 - 4321

Published: June 9, 2021

Abstract Corals are experiencing unprecedented decline from climate change‐induced mass bleaching events. Dispersal not only contributes to coral reef persistence through demographic rescue but can also hinder or facilitate evolutionary adaptation. Locations of reefs that likely survive future warming therefore remain largely unknown, particularly within the context both ecological and processes across complex seascapes differ in temperature range, strength connectivity, network size, other characteristics. Here, we used eco‐evolutionary simulations examine adaptation networks Caribbean, Southwest Pacific, Coral Triangle. We assessed factors associated with multiple systems understand which results general sensitive particular geographic contexts. found evolution be critical preventing extinction facilitating long‐term recovery communities all regions. Furthermore, immigration a (destination strength) current sea surface robustly predicted projections. However, higher initial cover, slower recovery, more lag Triangle, has greater number larval settlement than lowest projected cover Caribbean. These findings suggest depends on ecology, evolution, habitat characteristics, that, under an emissions stabilization scenario (RCP 4.5), may possible over centuries.

Language: Английский

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Protecting connectivity promotes successful biodiversity and fisheries conservation

Science, Journal Year: 2022, Volume and Issue: 375(6578), P. 336 - 340

Published: Jan. 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.

Language: Английский

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The Value of Larval Connectivity Information in the Static Optimization of Marine Reserve Design

Conservation Letters, Journal Year: 2014, Volume and Issue: 7(6), P. 533 - 544

Published: March 12, 2014

Abstract Marine reserve design often involves a tradeoff between meeting conservation goals (persistence of fished populations) and minimizing economic costs (lost fishing grounds). Optimization tools such as Marxan navigate that by finding configurations minimize while protecting some minimum fraction fish habitat. However, typical implementations do not account for patterns larval connectivity among reserves, factor known to be the key population dynamics. We show how information (self‐recruitment network centrality) can incorporated into optimization. then used spatially explicit model compare performance reserves designed using habitat alone or including connectivity. Incorporating improved species but others. conclude improve algorithms, it is essential evaluate species’ dynamics determine which will benefit from given network.

Language: Английский

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The state of Western Australia’s coral reefs

Coral Reefs, Journal Year: 2019, Volume and Issue: 38(4), P. 651 - 667

Published: April 4, 2019

Language: Английский

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Marine Population Connectivity: Reconciling Large-Scale Dispersal and High Self-Retention

The American Naturalist, Journal Year: 2015, Volume and Issue: 185(2), P. 196 - 211

Published: Jan. 13, 2015

Predicting connectivity patterns in systems with fluid transport requires descriptions of the spatial distribution propagules. In contrast to research on terrestrial seed dispersal, where much attention has focused localized physical factors affecting studies oceanic propagule dispersal have often emphasized role large-scale factors. We link these two perspectives by exploring how ocean is influenced "coastal boundary layer" (CBL), a region reduced velocities near shoreline that might substantially modify local-scale dispersal. used simple simulation model demonstrate accounting for CBL markedly alters distances, widths distributions, and fraction larvae retained their sites origin (self-retention). Median distances were up 59% shorter simulations than those without. Self-retention increased 3 orders magnitude presence CBLs, but only minor changes arose long-distance tails resulting asymmetric, non-Gaussian kernels analogous quantified Because successfully settling are commonly remain close shore interact CBL, ignoring this pervasive oceanographic feature will alter predictions population self-persistence, estimates connectivity, outcomes metapopulation analyses.

Language: Английский

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