Predicting climate-driven regime shifts versus rebound potential in coral reefs

Nature, Journal Year: 2015, Volume and Issue: 518(7537), P. 94 - 97

Published: Jan. 13, 2015

Language: Английский

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Herbivory and the resilience of Caribbean coral reefs: knowledge gaps and implications for management

Marine Ecology Progress Series, Journal Year: 2014, Volume and Issue: 520, P. 1 - 20

Published: Dec. 22, 2014

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 520:1-20 (2015) - DOI: https://doi.org/10.3354/meps11170 FEATURE ARTICLE: REVIEW Herbivory and resilience of Caribbean coral reefs: knowledge gaps implications for management Thomas C. Adam1,4,*, Deron E. Burkepile1, Benjamin I. Ruttenberg2, Michelle J. Paddack3 1Marine Sciences Program, Department Biological Sciences, Florida International University, North Miami, FL 33181, USA 2NOAA Fisheries, Southeast Fisheries Science Center, 33149, Department, California Polytechnic State San Luis Obispo, CA 93410, 3Biological Santa Barbara City College, Barbara, 93109, 4Present address: Institute, University California, 93106, *Corresponding author: [email protected] ABSTRACT: is a key process on reefs that can facilitate reef-building corals by excluding algae otherwise negatively impact settlement, growth, survivorship. Over last several decades, cover has declined precipitously. On many reefs, large structurally complex have been replaced other non-reef-building organisms, resulting in collapse physical structure loss critical ecosystem services. The drivers decline are vary among locations. populations herbivores greatly reduced disease overfishing, this resulted proliferation hinder recovery following major disturbances. Yet, evidence increases herbivory promote mixed. Here, we discuss contingencies will modify relationships between herbivores, algae, identify limit ability predict when where most likely persistence recovery. Impacts reef ecosystems space time depend herbivore diversity species identity. While there still number gaps, make recommendations based current understanding processes ecosystems. Reversing fate require development integrated strategies simultaneously address multiple stressors addition impacts fisheries assemblages. KEY WORDS: Phase shift · Grazing Macroalgae Parrotfish Fishing Diadema Climate change Restoration Full text pdf format Information about Feature Article NextCite article as: Adam TC, Burkepile DE, Ruttenberg BI, Paddack MJ management. Mar Ecol Prog Ser 520:1-20. Export citation Tweet linkedIn Cited Published Vol. 520. Online publication date: February 03, 2015 Print ISSN: 0171-8630; 1616-1599 Copyright © Inter-Research.

Language: Английский

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Herbivore cross‐scale redundancy supports response diversity and promotes coral reef resilience

Journal of Applied Ecology, Journal Year: 2015, Volume and Issue: 53(3), P. 646 - 655

Published: April 23, 2015

Summary Functional redundancy contributes to resilience if different species in the same functional group respond disturbance ways (response diversity). If a perform their role at spatial scales (cross‐scale redundancy), they are expected differently scale‐specific disturbance. Consequently, variance over which may provide proxy for resilience. Coral reefs diverse systems that key ecosystem services and subject increasing anthropogenic disturbances. Algal grazing by herbivorous fish maintenance of coral‐dominated reefs. To date, there has been little evaluation traits driving response diversity among how this relates coral recovery following acute Using body size as scale function, we tested whether cross‐scale herbivores was an effective indicator on 21 monitored through climate‐induced caused bleaching widespread mortality. When assemblages operated broader range were present prior disturbance, more likely recover states after After temperature‐induced loss small compensated increases large herbivores. This indicative high drove overall increase herbivore biomass recovering sites. These compensatory mechanisms not found sites where narrower scales. Synthesis applications . Cross‐scale provides managers with reef resilience, although contribution will vary Maintaining given site requires no classes disproportionately depleted fishing. Balanced harvesting, all fished proportion potential production, would help achieve this.

Language: Английский

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A quantitative framework for assessing ecological resilience

Ecology and Society, Journal Year: 2017, Volume and Issue: 22(3)

Published: Jan. 1, 2017

Quantitative approaches to measure and assess resilience are needed bridge gaps between science, policy management. In this paper, we revisit definitions of suggest a quantitative framework for assessing ecological sensu Holling (1973). Ecological as an emergent ecosystem phenomenon can be decomposed into complementary attributes (scales, adaptive capacity, thresholds alternative regimes) that embrace the complexity inherent ecosystems. Quantifying these simultaneously provides opportunities move from assessment specific within towards broader measurement its general resilience. We provide framework, based on testable hypotheses, which allows By implementing in management, inference modeling, key uncertainties reduced incrementally over time learning about dynamic ecosystems maximized. Such improvements because uncertainty global environmental change impacts their effects is high. Improved assessments will ultimately facilitate optimized use limited resources

Language: Английский

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Home-range allometry in coral reef fishes: comparison to other vertebrates, methodological issues and management implications

Oecologia, Journal Year: 2014, Volume and Issue: 177(1), P. 73 - 83

Published: Nov. 26, 2014

Language: Английский

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Quantifying the response of structural complexity and community composition to environmental change in marine communities

Global Change Biology, Journal Year: 2015, Volume and Issue: 22(5), P. 1965 - 1975

Published: Dec. 18, 2015

Abstract Habitat structural complexity is a key factor shaping marine communities. However, accurate methods for quantifying underwater are currently lacking. Loss of linked to ecosystem declines in biodiversity and resilience. We developed new using stereo‐imagery spanning 4 years (2010–2013) reconstruct 3D models coral reef areas quantified both at two spatial resolutions (2.5 25 cm) benthic community composition characterize changes after an unprecedented thermal anomaly on the west coast Australia 2011. Structural increased quadrats (4 m 2 ) that bleached, but not those did bleach. Changes were driven by species‐specific responses warming, highlighting importance identifying small‐scale dynamics disentangle ecological disturbance. demonstrate effective, repeatable method relationship among composition, ocean improving predictions response ecosystems environmental change.

Language: Английский

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Resource partitioning along multiple niche axes drives functional diversity in parrotfishes on Caribbean coral reefs

Oecologia, Journal Year: 2015, Volume and Issue: 179(4), P. 1173 - 1185

Published: Aug. 5, 2015

Language: Английский

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Clarifying functional roles: algal removal by the surgeonfishes Ctenochaetus striatus and Acanthurus nigrofuscus

Coral Reefs, Journal Year: 2017, Volume and Issue: 36(3), P. 803 - 813

Published: March 22, 2017

Language: Английский

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Macroalgal herbivory on recovering versus degrading coral reefs

Coral Reefs, Journal Year: 2014, Volume and Issue: 33(2), P. 409 - 419

Published: March 5, 2014

Language: Английский

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Modeling the effects of selectively fishing key functional groups of herbivores on coral resilience

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

Published: Jan. 1, 2024

Abstract Mounting evidence suggests that fishing can be a major driver of coral‐to‐macroalgae regime shifts on tropical reefs. In many small‐scale coral reef fisheries, fishers target herbivorous fishes, which weaken resilience via reduced herbivory macroalgae then outcompete corals. Previous models explored the effects harvesting herbivores revealed hysteresis in herbivory–benthic state relationship results bistability coral‐ and macroalgae‐dominated states over some levels pressure, has been supported by empirical evidence. However, past have not accounted for functional differences among or how fisher selectivity different herbivore groups may alter benthic dynamics resilience. Here, we use dynamic model links differential two key to outcome competitive between macroalgae. We show depends only level but also types targeted fishers. Selectively browsing are capable consuming mature (e.g., unicornfish) increases precariousness moving system close tipping point. By contrast, selectively grazing preventing from becoming established parrotfishes) increase catch yields substantially more before point is reached. this lower with increasing effort comes at cost range bistable; makes shift triggered disturbance difficult impractical reverse. Our suggest management strategies fisheries should consider harvested coupled influence light trade‐off recovery following large disturbances.

Language: Английский

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