Historical declines in parrotfish on Belizean coral reefs linked to shifts in reef exploitation following European colonization DOI Creative Commons

Wendy Muraoka,

Katie L. Cramer, Aaron O’Dea

et al.

Frontiers in Ecology and Evolution, Journal Year: 2022, Volume and Issue: 10

Published: Oct. 4, 2022

Humans have utilized the Mesoamerican Reef (MAR) for millennia but effects of prehistorical and historical fishing on this ecosystem remain understudied. To assess long-term coupling reef human dynamics in region, we tracked trends structure functioning lagoonal reefs within Belizean portion MAR using fish teeth fossils sediment accumulation rates cores. We then paired with a timeline demographic cultural changes region’s populations. The ∼1,300-year encompassed core record shows that declines relative abundance rate from parrotfish, key herbivore, occurred at all three sites began between ∼1500 1800 AD depending site metric abundance. A causality analysis showed parrotfish had positive causal effect accretion rates, proxy coral growth, reconfirming important role these functioning. timing initial during time relatively low population density Belize. However, were synchronous upheaval resulting European colonization New World. more recent (∼1800 AD) tandem increased subsistence by multiple immigrant groups, pattern was likely necessitated establishment an import economy controlled small group land-owning elites. These paleoecological reveal current abundances central Belize are well below their pre-European contact peaks pressure post-contact has caused decline rates. origins degradation hundreds years before onset modern combined local disturbances climate change.

Language: Английский

Are coral reefs victims of their own past success? DOI Creative Commons
Willem Renema, John M. Pandolfi, Wolfgang Kiessling

et al.

Science Advances, Journal Year: 2016, Volume and Issue: 2(4)

Published: April 1, 2016

Pleistocene sea-level change transformed staghorn corals into prolific reef builders that are sensitive to anthropogenic stressors.

Language: Английский

Citations

59
Differential impacts of coral reef herbivores on algal succession in Kenya DOI Open Access

AT Humphries,

Tim R. McClanahan, Christopher D. McQuaid

et al.

Marine Ecology Progress Series, Journal Year: 2014, Volume and Issue: 504, P. 119 - 132

Published: Feb. 6, 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 504:119-132 (2014) - DOI: https://doi.org/10.3354/meps10744 Differential impacts of coral reef herbivores on algal succession in Kenya A. T. Humphries1,2,*, R. McClanahan3, C. D. McQuaid1 1Coastal Research Group, Department Zoology and Entomology, Rhodes University, Grahamstown 6140, South Africa 2Coral Reef Conservation Project, Wildlife Society, PO Box 99470, Mombasa 80107, 3Wildlife Programs, Bronx, New York, NY 10460, USA *Corresponding author: [email protected] ABSTRACT: In shallow-water systems, fisheries management influences herbivory, which mediates ecosystem processes by regulating biomass, primary production, competition between benthic organisms, such as algae corals. Sea urchins herbivorous fishes (scrapers, grazers, browsers) are dominant Kenya's fringing their grazing coral-macroalgal dynamics dominance. Using experimental substrata grazer exclusions, we tested hypothesis that differentially affect composition using 3 levels management: fished reefs, community-managed closures (<10 yr old, <0.5 km2), government-managed (20 40 5 10 km2). reefs government closures, facilitated maintenance early successional species, turfs, associated with sea former scraping latter. Crustose coralline were only abundant video recordings showed fish was greatest at these sites, most notably for parrotfishes (scrapers). A combination small detritivorous present community allowed macroalgae quickly develop from turf into then late stages. These may represent an intermediate or transitional system herbivore dominance characterized macroalgae. Consequently, heavily seascapes initially protected fishing require additional efforts facilitate recovery larger-bodied fishes, including bans capturing restricting gear (e.g. spearguns) target species. KEY WORDS: Animal-plant interactions · Community-based area reserves Niche replacement Phase shift Primary Resilience Full text pdf format Supplementary material PreviousNextCite this article as: Humphries AT, McClanahan TR, McQuaid CD Kenya. Mar Ecol Prog Ser 504:119-132. Export citation Tweet linkedIn Cited Published Vol. 504. Online publication date: May 14, 2014 Print ISSN: 0171-8630; 1616-1599 Copyright © Inter-Research.

Language: Английский

Citations

55
Patchy delivery of functions undermines functional redundancy in a high diversity system DOI Creative Commons
Robert P. Streit, Graeme S. Cumming, David R. Bellwood

et al.

Functional Ecology, Journal Year: 2019, Volume and Issue: 33(6), P. 1144 - 1155

Published: March 9, 2019

Abstract Globally, many ecosystems are being challenged and transformed by anthropogenic climate change. Future ecosystem configurations will be heavily influenced the critical ecological functions that affect resilience. Robust measures of these thus essential for understanding responding to Coral reefs experiencing unprecedented change due global mass coral bleaching. After bleaching events other disturbances, herbivorous fishes provide reef resilience controlling harmful proliferation algae. Identifying functional diversity amongst has been a mainstay fish research, but it remained unclear how, what extent, translates impacts on reefs. Rather than assessing potential community, we explicitly considered delivery herbivory quantifying, in detail, spatial extent overlap feeding areas across different groups. Core were highly concentrated consistently covered just 14% available space. Overlap groups was limited, showing high complementarity as tended feed next one another. Thus, processes patchy, effectively reducing redundancy, even presence diverse assemblage. Our findings caution against assumptions homogeneity functions. The impact local assemblages current approaches may overestimated, potentially leading skewed assessments results highlight need incorporate collective animal behaviour spatio‐temporal scales into future ultimately A plain language summary is this article.

Language: Английский

Citations

53
The timing and causality of ecological shifts on Caribbean reefs DOI
William F. Precht, Richard B. Aronson, Toby Gardner

et al.

Advances in marine biology, Journal Year: 2020, Volume and Issue: unknown, P. 331 - 360

Published: Jan. 1, 2020

Language: Английский

Citations

42
Quantifying scales of spatial variability in algal turf assemblages on coral reefs DOI Open Access

JL Harris,

Levi S. Lewis,

JE Smith

et al.

Marine Ecology Progress Series, Journal Year: 2015, Volume and Issue: 532, P. 41 - 57

Published: June 1, 2015

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 532:41-57 (2015) - DOI: https://doi.org/10.3354/meps11344 Quantifying scales of spatial variability in algal turf assemblages on coral reefs J. L. Harris*, S. Lewis, E. Smith Center for Biodiversity & Conservation, Scripps Institution Oceanography, University California San Diego, La Jolla, 92037, USA *Corresponding author: [email protected] ABSTRACT: over multiple is a fundamental goal ecology, providing insight into which scale-dependent processes most strongly influence community structure. On reefs, ubiquitous algae are primary food source herbivores and competitors space with corals. Turf will likely increase future, because they thrive under conditions that reduce cover. Turfs typically treated as single homogeneous functional group, but analyzing them variable assemblage more informative. We used hierarchical sampling design quantify 4 from centimeters (within dead heads) kilometers (across islands) rarely studied Lhaviyani Atoll, Maldives. metrics, each reflecting different ecological processes: percent cover, canopy height, richness, composition. For these was significant at scales. However, all smallest scale (centimeters) explained greatest proportion overall variability. The least richness occurred among sites (100s meters), suggesting such competition, predation, vegetative growth heterogeneous small In contrast, composition largest (kilometers), oceanographic or well-mixed propagule supply With declining increasing cover worldwide, it become increasingly important understand dynamics coral-turf competitive interactions. highly scales, interactions require detailed consideration. KEY WORDS: Epilithic matrix · Spatial Algal Patchiness Hierarchical analysis Full text pdf format PreviousNextCite this article as: Harris JL, Lewis LS, JE reefs. Mar Ecol Prog Ser 532:41-57. Export citation Tweet linkedIn Cited by Published Vol. 532. Online publication date: July 21, 2015 Print ISSN: 0171-8630; 1616-1599 Copyright © Inter-Research.

Language: Английский

Citations

48
Influence of habitat condition and competition on foraging behaviour of parrotfishes DOI Open Access
Kirsty L. Nash, Nicholas A. J. Graham, Fraser A. Januchowski‐Hartley

et al.

Marine Ecology Progress Series, Journal Year: 2012, Volume and Issue: 457, P. 113 - 124

Published: April 5, 2012

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 457:113-124 (2012) - DOI: https://doi.org/10.3354/meps09742 Influence of habitat condition and competition on foraging behaviour parrotfishes Kirsty L. Nash1,*, Nicholas A. J. Graham1, Fraser Januchowski-Hartley1, David R. Bellwood1,2 1Australian Research Council Centre Excellence for Coral Reef Studies 2School Tropical Biology, James Cook University, Townsville, Queensland 4811, Australia *Email: [email protected] ABSTRACT: Metrics by herbivorous reef fishes have been shown vary across space time, among species. However, little work has explicitly assessed how fish use within their ranges, or characterised relative mobility in response condition. This knowledge is fundamental understanding functional impact herbivores, spatially explicit roles may be modified future degradation. In this study, we influence among-site variation condition, potential predation risk short-term range 2 species parrotfish, Scarus niger S. frenatus, mid-shelf reefs Great Barrier Reef, Australia. Foraging ranges were evaluated using 3 metrics: (1) inter-foray distance (2) area (3) shape range. The primary predictor these metrics was coral cover. Inter-foray decreased with increasing cover both became more circular Competitor abundance a secondary driver behaviour, whereas had no detectable effect. research provides fine-scale herbivores shapes spatial scales at which interact environment short term, they perform functions essential resilience. Critically, study suggests that predicted changes are likely alter way forage, will extent can compensate declining through feeding behaviour. KEY WORDS: Herbivory · Functional role Ecosystem function Mobility Full text pdf format Supplementary material PreviousNextCite article as: Nash KL, Graham NAJ, Januchowski-Hartley FA, Bellwood DR parrotfishes. Mar Ecol Prog Ser 457:113-124. Export citation Tweet linkedIn Cited Published Vol. 457. Online publication date: June 21, 2012 Print ISSN: 0171-8630; 1616-1599 Copyright © Inter-Research.

Language: Английский

Citations

47
Habitat degradation alters trophic pathways but not food chain length on shallow Caribbean coral reefs DOI Creative Commons
Piedad S. Morillo‐Velarde, Patricia Briones‐Fourzán, Lorenzo Álvarez‐Filip

et al.

Scientific Reports, Journal Year: 2018, Volume and Issue: 8(1)

Published: March 1, 2018

Abstract Habitat degradation can affect trophic ecology by differentially affecting specialist and generalist species, the number type of interspecific relationships. However, effects habitat on coral reefs have received limited attention. We compared structure food chain length between two shallow Caribbean similar in size close to each other: one dominated live other macroalgae (i.e., degraded). subjected samples basal carbon sources (particulate organic matter algae) same 48 species consumers (invertebrates fishes) from both stable isotope analyses, determined position relative importance various for herbivores, omnivores, carnivores. found that had structure, but different pathways. On coral-dominated reef, turf algae epiphytes were most important source all consumer categories, whereas degraded particulate was a major Our results suggest communities associated with these is robust enough adjust conditions degradation.

Language: Английский

Citations

44
Transient Grazing and the Dynamics of an Unanticipated Coral–Algal Phase Shift DOI
Yves‐Marie Bozec, Christopher Doropoulos, George Roff

et al.

Ecosystems, Journal Year: 2018, Volume and Issue: 22(2), P. 296 - 311

Published: June 20, 2018

Language: Английский

Citations

39
Neogene carbonate platform development in the southern South China Sea: Evidence from calcareous microfossils DOI

Xiang Su,

Rong Xiang,

Liang Yi

et al.

Palaeogeography Palaeoclimatology Palaeoecology, Journal Year: 2024, Volume and Issue: 640, P. 112093 - 112093

Published: Feb. 20, 2024

Language: Английский

Citations

4
Competitive interactions among zoanthids (cnidaria: zoanthidae) in an intertidal zone of northeastern Brazil DOI Creative Commons
Emanuelle Fontenele Rabelo, Marcelo de Oliveira Soares, Helena Matthews-Cascón

et al.

Brazilian Journal of Oceanography, Journal Year: 2013, Volume and Issue: 61(1), P. 35 - 42

Published: March 1, 2013

Sessile organisms that live in consolidated substrates frequently compete for space. Coral species have many strategies to face this competition, including harming their opponents or hindering growth. In the present study, competitive interactions between three of zoanthids were investigated intertidal zone a sandstone reef environment northeastern Brazil. The abilities evaluated by periodic observation natural fringes contact and experimental evaluation growth rate through removal 100 cm² colonies each species. Palythoa caribaeorum Zoanthus sociatus had similar rates, both grew faster than Protopalythoa variabilis. recolonization strategy seems differ among P. Z. remained unchanged over time, without any type aggressive interaction them, suggesting stand-off was used these organisms. polyps variabilis, often killing its colonies. coexistence reveals capacity survival competition limited resources such as free substrate, which led colonization establishment environments.

Language: Английский

Citations

41