Hugh Sweatman

ORCID: 0000-0002-1200-9606
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About
Contact & Profiles
Research Areas
  • Coral and Marine Ecosystems Studies
  • Marine and fisheries research
  • Marine animal studies overview
  • Marine and coastal plant biology
  • Ichthyology and Marine Biology
  • Coastal and Marine Management
  • Marine Bivalve and Aquaculture Studies
  • Marine Biology and Ecology Research
  • Maritime and Coastal Archaeology
  • Fish Ecology and Management Studies
  • Identification and Quantification in Food
  • Coastal wetland ecosystem dynamics
  • Animal Behavior and Reproduction
  • Marine Ecology and Invasive Species
  • Geology and Paleoclimatology Research
  • Tropical and Extratropical Cyclones Research
  • Fish Biology and Ecology Studies
  • Plant and animal studies
  • Pacific and Southeast Asian Studies
  • Ocean Acidification Effects and Responses
  • Microbial Community Ecology and Physiology
  • Island Studies and Pacific Affairs
  • Mathematical and Theoretical Epidemiology and Ecology Models
  • Polar Research and Ecology
  • Underwater Acoustics Research

Australian Institute of Marine Science
2015-2024

Townsville Hospital
2021

University of Tasmania
2016-2017

Sydney Institute of Marine Science
2016

James Cook University
1995-1997

Smithsonian Tropical Research Institute
1988-1994

The University of Sydney
1990

Macquarie University
1983

University of British Columbia
1976

East Malling Research (United Kingdom)
1923

The world’s coral reefs are being degraded, and the need to reduce local pressures offset effects of increasing global is now widely recognized. This study investigates spatial temporal dynamics cover, identifies main drivers mortality, quantifies rates potential recovery Great Barrier Reef. Based on most extensive time series data reef condition (2,258 surveys 214 over 1985–2012), we show a major decline in cover from 28.0% 13.8% (0.53% y −1 ), loss 50.7% initial cover. Tropical cyclones,...

10.1073/pnas.1208909109 article EN Proceedings of the National Academy of Sciences 2012-10-01

Very little is known about how environmental changes such as increasing temperature affect disease dynamics in the ocean, especially at large spatial scales. We asked whether frequency of warm anomalies positively related to coral across 1,500 km Australia's Great Barrier Reef. used a new high-resolution satellite dataset ocean and 6 y cover data from annual surveys 48 reefs answer this question. found highly significant relationship between frequencies white syndrome, an emergent disease,...

10.1371/journal.pbio.0050124 article EN cc-by PLoS Biology 2007-05-04

The Great Barrier Reef (GBR) provides a globally significant demonstration of the effectiveness large-scale networks marine reserves in contributing to integrated, adaptive management. Comprehensive review available evidence shows major, rapid benefits no-take areas for targeted fish and sharks, both reef nonreef habitats, with potential fisheries as well biodiversity conservation. Large, mobile species like sharks benefit less than smaller, site-attached fish. Critically, also appear...

10.1073/pnas.0909335107 article EN Proceedings of the National Academy of Sciences 2010-02-22

Many marine scientists have concluded that coral reefs are moving toward or locked into a seaweed‐dominated state. However, because there been no regional‐ global‐scale analyses of such reef “phase shifts,” the magnitude this phenomenon was unknown. We analyzed 3581 quantitative surveys 1851 performed between 1996 and 2006 to determine frequency, geographical extent, degree macroalgal dominance phase shifts around world. Our results indicate replacement corals by macroalgae as dominant...

10.1890/08-1781.1 article EN Ecology 2009-06-01

2014–2017 was an unprecedented period of successive record-breaking hot years, which coincided with the most severe, widespread, and longest-lasting global-scale coral bleaching event ever recorded. The (GCBE) resulted in very high mortality on many reefs, rapid deterioration reef structures, far-reaching environmental impacts. Through papers this special issue Coral Reefs entitled Global Bleaching Event: Drivers, Impacts, Lessons Learned, as well published elsewhere, we have a good analysis...

10.1007/s00338-019-01844-2 article EN cc-by Coral Reefs 2019-07-22

Ocean warming under climate change threatens coral reefs directly, through fatal heat stress to corals and indirectly, by boosting the energy of cyclones that cause destruction loss associated organisms. Although cyclone frequency is unlikely rise, intensity predicted increase globally, causing more frequent occurrences most destructive with potentially severe consequences for reef ecosystems. While increasing considered a pervasive risk reefs, quantitative estimates threats from...

10.1111/gcb.13593 article EN Global Change Biology 2017-01-31

On coral reefs, herbivorous fishes consume benthic primary producers and regulate competition between fleshy algae reef-building corals. Many of these species are also important fishery targets, yet little is known about their global status. Using a large-scale synthesis peer-reviewed unpublished data, we examine variability in abundance biomass reef explore evidence for fishing impacts globally within regions. We show that more than twice as high locations not accessible to fisheries...

10.1098/rspb.2013.1835 article EN Proceedings of the Royal Society B Biological Sciences 2013-11-20

Research on the coral-eating crown-of-thorns starfish (CoTS) has waxed and waned over last few decades, mostly in response to population outbreaks at specific locations. This review considers advances our understanding of biology ecology CoTS based resurgence research interest, which culminated this current special issue Biology, Ecology Management Crown-of-Thorns Starfish. More specifically, progress addressing 41 questions posed a seminal by P. Moran 30 years ago, as well exploring new...

10.3390/d9040041 article EN cc-by Diversity 2017-09-21

1 The impact of environmental disturbance and habitat loss on associated species is expected to be dependent a species' level specialization. We examined use specialization coral reef fish from the diverse ecologically important family Pomacentridae, determined which are susceptible declines in cover due induced by crown-of-thorns seastar (COTS, Acanthaster planci L.). 2 A high proportion pomacentrid live association with as adults (40%) or juveniles (53%). Adults many had strong...

10.1111/j.1365-2656.2007.01341.x article EN Journal of Animal Ecology 2007-12-11

The food—searching behavior of titmice (Paridae) was investigated in laboratory and field to determine how effective individual birds were at locating patchy sources hidden food. A series three experiments performed using tame great tits, Parus major. In Experiment 1, offered a choice among six densities food discrete patches. learned concentrate their search strongly on the more dense patches, five preferred highest density. 2, distribution altered by interchanging patches lowest density...

10.2307/1935451 article EN Ecology 1974-11-01

10.1016/0022-0981(88)90170-0 article EN Journal of Experimental Marine Biology and Ecology 1988-12-01

I examined the recruitment of reef fishes to isolated experimental standard—size coral colonies supporting residents each four planktivorous fishes: (a) Dascyllus aruanus, (b) D. reticulatus (both at several densities), (c) Chromis caerulea, or (d) Pomacentrus popei. removed all recruits approximately weekly intervals, and summed larval over two settlement seasons. found types interactions between resident recruits: (1) There was increased three species in sites where there were...

10.2307/2937132 article EN Ecological Monographs 1985-12-01

The reduction in coral cover on many contemporary tropical reefs suggests a different set of community assemblages will dominate future reefs. To evaluate the capacity reef corals to persist over various time scales, we examined dynamics contemporary, fossil, and simulated ecosystems. Based studies between 1987 2012 at two locations Caribbean, 1981 2013 five Indo-Pacific, show that genera declined abundance, some showed no change few increased abundance. Whether abundance genus declined,...

10.1371/journal.pone.0107525 article EN cc-by PLoS ONE 2014-10-01

Many ecosystems face degradation unless factors that underpin their resilience can be effectively managed. In tropical reef ecosystems, grazing by herbivorous fishes prevent coral-macroalgal phase shifts commonly signal loss of resilience. However, knowledge characteristics most promote is typically experimental, localized, and sparse, which limits broad management applications. Applying sound ecological theory to broad-scale data may provide an alternative basis for ecosystem management. We...

10.1890/11-2253.1 article EN Ecological Applications 2012-07-31

Abstract Climate change threatens coral reefs across the world. Intense bleaching has caused dramatic mortality in many tropical regions recent decades, but less obvious chronic effects of temperature and other stressors can be equally threatening to long‐term persistence diverse coral‐dominated reef systems. Coral persist if recovery rates equal or exceed average mortality. While from acute destructive events is often easy measure, estimating investigating factors that influence them...

10.1111/gcb.13707 article EN Global Change Biology 2017-05-09
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