Dr Gareth Williams

Reader / Director of Impact and Engagement

Contact info

Room: 303 Craig Mair      Phone: +44(0)1248 382588

E-mail: g.j.williams@bangor.ac.uk      Twitter 

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I graduated in Marine Biology (University of Liverpool) in 2004 and completed an MSc in Marine Environmental Protection (Bangor University) in 2006. I began a PhD in Marine Biology (Victoria University of Wellington, New Zealand) in 2007 in coral disease ecology, combining macroecology, experimental ecology, and histopathology to identify disease baselines and drivers of disease prevalence on Pacific coral reefs. A focus study site of mine was Palmyra Atoll, an uninhabited atoll in the Northern Line Islands. After obtaining my PhD in 2011, I was awarded a post-doctoral scholarship at Scripps Institution of Oceanography, University of California San Diego (UCSD) where I continued to work on the macroecology of Pacific coral reefs. This role at Scripps transitioned into an Assistant Project Scientist position within the Center for Marine Biodiversity and Conservation in 2013. I left Scripps in late 2015 to return to the UK and take up my full-time role within the School of Ocean Sciences at Bangor University.  

I am a marine ecologist specialising in coral reef ecology. My work focuses on the interaction of organisms with their environment, often taking a macroecological approach. I am particularly interested in how human activities and natural biophysical gradients interact to drive community patterns across multiple trophic levels (microbes to sharks) and scales (individual reefs to entire ocean basins). Much of my work incorporates remote coral reefs free from direct human impact, providing key replication at the unimpacted end of an intact-to-degraded ecosystem spectrum. By surveying across extensive geographical areas we address broad questions pertaining to: 1. the human, climatic and oceanographic drivers of coral reef ecosystem structure and function, 2. climate change impacts to coral reef ecosystems, 3. the spatial ecology of coral reefs, and 4. disease dynamics on coral reefs.

 

Research Areas 

  1. 2024
  2. Published

    Regional reef fish assemblage maps provide baseline biogeography for tropicalization monitoring

    Walker, B., Becker, D., Williams, G. J., Kilfoyle, A., Smith, S. & Kozachuk, A., 3 Apr 2024, In: Scientific Reports. 14, 1, p. 7893 7893.

    Research output: Contribution to journalArticlepeer-review

  3. 2023
  4. Published

    Local human impacts disrupt depth-dependent zonation of tropical reef fish communities

    Richardson, L., Heenan, A., Delargy, A., Neubauer, P., Lecky, J., Gove, J. M., Green, M., Kindinger, T., Ingeman, K. & Williams, G. J., Nov 2023, In: Nature Ecology and Evolution. 7, 11, p. 1844-1855 12 p.

    Research output: Contribution to journalArticlepeer-review

  5. Published

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

    Gove, J. M., Williams, G. J., Lecky, J., Brown, E., Conklin, E., Counsell, C., Davis, G., Donovan, M., Falinski, K., Kramer, L., Kozar, K., Li, N., Maynard, J. A., McCutcheon, A., McKenna, S., Neilson, B., Safaie, A., Teague, C., Whittier, R. & Asner, G., 21 Sept 2023, In: Nature. 621, 7979, p. 536-542 7 p.

    Research output: Contribution to journalArticlepeer-review

  6. E-pub ahead of print

    Near-island enhancement in mesopelagic micronekton communities off Hawaiʻi

    Drazen, J., Clark, B., Gove, J. M., Phipps, J., Copeland, A., Lecky, J., Green, M., Kobayashi, D., Turner, J., Whitney, J. & Williams, G. J., 10 Jul 2023, (E-pub ahead of print) In: Deep Sea Research Part I: Oceanographic Research Papers. 104107.

    Research output: Contribution to journalArticlepeer-review

  7. Published

    Recurring bleaching events disrupt the spatial properties of coral reef benthic communities across scales

    Ford, H., Gove, J. M., Healey, J., Davies, A., Graham, N. & Williams, G. J., 10 Jul 2023, In: Remote Sensing in Ecology and Conservation. 10, 1, p. 39-55 17 p.

    Research output: Contribution to journalArticlepeer-review

  8. E-pub ahead of print

    Host density and anthropogenic stress are drivers of variability in dark spot disease in Siderastrea siderea across the Florida Reef Tract

    Aeby, G. S., Williams, G. J., Whitall, D., Davies, A., Fromuth, E. & Walker, B. K., 27 Jun 2023, (E-pub ahead of print) In: Bulletin of Marine Science .

    Research output: Contribution to journalArticlepeer-review

  9. Published

    Ocean currents magnify upwelling and deliver nutritional subsidies to reef-building corals during El Niño heatwaves

    Fox, M., Guillaume-Castel, R., Edwards, C., Glanz, J., Gove, J. M., Green, M., Juhlin, E., Smith, J. & Williams, G. J., 14 Jun 2023, In: Science Advances. 9, 24, eadd5032.

    Research output: Contribution to journalArticlepeer-review

  10. Published

    Macroalgae exhibit diverse responses to human disturbances on coral reefs

    Cannon, S., Donner, S., Liu, A., Gonzalez Espinosa, P., Baird, A., Baum, J., Bauman, A., Beger, M., Benkwitt, C., Birt, M., Chancerelle, Y., Cinner, J., Crane, N., Denis, V., Depczynski, M., Fadli, N., Fenner, D., Fulton, C., Golbuu, Y., Graham, N., Guest, J., Harrison, H., Hobbs, J-P., Hoey, A., Holmes, T., Houk, P., Januchowski-Hartley, F., Jompa, J., Kuo, C-Y., Valentino Limmon, G., Lin, Y., McClanahan, T., Muenzel, D., Paddack, M., Planes, S., Pratchett, M., Radford, B., Reimer, J., Richards, Z., Ross, C., Rulmal Jr., J., Sommer, B., Williams, G. J. & Wilson, S., 1 Jun 2023, In: Global Change Biology. 29, 12, p. 3318-3330

    Research output: Contribution to journalArticlepeer-review

  11. Published

    Influence of upwelling on coral reef benthic communities: a systematic review and meta-analysis

    Spring, D. & Williams, G. J., 29 Mar 2023, In: Proceedings of the Royal Society B: Biological Sciences. 290, 1995, p. 20230023 1 p.

    Research output: Contribution to journalArticlepeer-review

  12. Published

    Co-occurrence of herbivorous fish functional groups correlates with enhanced coral reef benthic state

    Sheppard, C., Williams, G. J., Exton, D. & Keith, S., Mar 2023, In: Global Ecology and Biogeography. 32, 3, p. 435-449 15 p.

    Research output: Contribution to journalArticlepeer-review

  13. 2022
  14. Published

    Seabed morphology and bed shear stress predict temperate reef habitats in a high energy marine region

    Jackson-Bue, T., Williams, G., Whitton, T., Roberts, M., Goward Brown, A., Amir, H., King, J., Powell, B., Rowlands, S., Llewelyn Jones, G. & Davies, A., 5 Sept 2022, In: Estuarine, Coastal and Shelf Science. 274, 107934.

    Research output: Contribution to journalArticlepeer-review

  15. Published

    Linking variation in planktonic primary production to coral reef fish growth and condition

    Roche, R., Heenan, A., Taylor, B. M., Schwarz, J. N., Fox, M. D., Southworth, L., Williams, G. & Turner, J., 31 Aug 2022, In: Royal Society Open Science. 9, 8, p. 201012 201012.

    Research output: Contribution to journalArticlepeer-review

  16. Published

    The fundamental links between climate change and marine plastic pollution

    Ford, H. V., Jones, N., Davies, A. J., Godley, B. J., Jambeck, J. R., Napper, I. E., Suckling, C. C., Williams, G. J., Woodall, L. & Koldewey, H. J., 1 Feb 2022, In: Science of the Total Environment. 806, Pt 1, 150392.

    Research output: Contribution to journalArticlepeer-review

  17. 2021
  18. Published

    Three-dimensional mapping reveals scale-dependent dynamics in biogenic reef habitat structure

    Jackson-Bué, T., Williams, G., Walker-Springett, G., Rowlands, S. & Davies, A., Dec 2021, In: Remote Sensing in Ecology and Conservation. 7, 4, p. 621-637 17 p.

    Research output: Contribution to journalArticlepeer-review

  19. Published

    Precision and cost-effectiveness of bioindicators to estimate nutrient regimes on coral reefs

    Vaughan, E. J., Wynn, P. M., Wilson, S. K., Williams, G. J., Barker, P. A. & Graham, N. A. J., Sept 2021, In: Marine Pollution Bulletin. 170, 112606.

    Research output: Contribution to journalArticlepeer-review

  20. Published

    Coral reef resilience differs among islands within the Gulf of Mannar, southeast India following successive coral bleaching events

    Diraviya Raj, K., Aeby, G., Mathews, G., Williams, G. J., Caldwell, J., Laju, R. L., Selva Bharath, M., Dinesh Kumar, P., Arasamuthu, A., Gladwin Gnana Asir, N., Wedding, L., Davies, A., Moritsch, M. & Patterson Edward, J. K., Aug 2021, In: Coral Reefs. 40, 4, p. 1029-1044

    Research output: Contribution to journalArticlepeer-review

  21. Published

    Quantifying upwelling in tropical shallow waters: a novel method using a temperature stratification index

    Guillaume-Castel, R., Williams, G. J., Rogers, J. S., Gove, J. M. & Green, M., Aug 2021, In: Limnology and Oceanography: Methods. 19, 8, p. 566-577 10499.

    Research output: Contribution to journalArticlepeer-review

  22. Published

    Artificial shorelines lack natural structural complexity across scales

    Lawrence, P., D'Urban Jackson, T., Jenkins, S., Williams, G. J. & Davies, A., 26 May 2021, In: Proceedings of the Royal Society B: Biological Sciences. 288, 1951, p. 20210329 rspb.2021.0329.

    Research output: Contribution to journalArticlepeer-review

  23. Published

    Nitrogen enrichment in macroalgae following mass coral mortality

    Vaughan, E., Wilson, S., Howlett, S., Parravicini, V., Williams, G. J. & Graham, N. A. J., 12 Apr 2021, In: Coral Reefs.

    Research output: Contribution to journalArticlepeer-review

  24. Published

    Spatial scaling properties of coral reef benthic communities

    Ford, H., Gove, J. M., Davies, A., Graham, N. A. J., Healey, J., Conklin, E. & Williams, G. J., 1 Feb 2021, In: Ecography. 44, 2, p. 188-198 11 p.

    Research output: Contribution to journalArticlepeer-review

  25. Published

    Spatial and temporal scales of coral reef fish ecological research and management: a systematic map protocol

    Lawrence, A., Heenan, A., Levine, A., Haddaway, N., Powell, F., Wedding, L., Roche, R., Lawrence, P., Szostek, C., Ford, H., Southworth, L., Sannassy Pilly, J., Richardson, L. & Williams, G. J., 25 Jan 2021, In: Environmental Evidence. 10, 3.

    Research output: Contribution to journalArticlepeer-review

  26. 2020
  27. Published

    Local human impacts disrupt relationships between benthic reef assemblages and environmental predictors

    Ford, A., Jouffray, J-B., Norstrom, A. V., Moore, B., Nugues, M., Williams, G. J., Bejarano, S., Magron, F., Wild, C. & Ferse, S., 21 Oct 2020, In: Frontiers in Marine Science. 7, 571115.

    Research output: Contribution to journalArticlepeer-review

  28. Published

    A review of a decade of lessons from one of the world’s largest MPAs: conservation gains and key challenges

    Hays, G. C., Koldewey, H., Meeuwig, J. J., Attrill, M. J., Barley, S., Bayley, D., . Benkwitt, C. E., Block, B., Schallert, R. J., Carlisle, A. B., Carr, P., Chapple, T. K., Collins, C., Diaz, C., Dunn, N., Dunbar, R. B., Eager, D. S., Engel, J., Embling, C. B., Esteban, N., Ferretti, F., Foster, N. L., Freeman, R., Gollock, M., Graham, N. A. J., Harris, J. L., Head, C. E. I., Hosegood, P., Howell, K. L., Hussey, N. E., Jacoby, D. M. P., Jones, R., Lange, I. D., Letessier, T. B., Levey, E., Lindhart, M., McDevitt-Irwin, J. M., Meekan, M. G., Micheli, F., Mogg, A., Mortimer, J. A., Mucciarone, D., Nicoll, M. A., Nuno, A., Perry, C. T., Sannassy Pilly, J., Preston, S. G., Rattray, A. J., Robinson, E., Roche, R., Schiele, M., Sheehan, E. V., Sheppard, A., Sheppard, C., Smith, A. L., Soule, B., Spalding, M., Stevens, G. M. W., Steyaert, M., Stiffel, S., Taylor, B., Tickler, D. M., Trevail, A. M., Trueba, P., Turner, J., Votier, S., Wilson, B., Williams, G., Williamson, B. J., Williamson, M. J., Wood, H. & Curnick, D. J., 14 Oct 2020, In: Marine Biology. 167, 11, 159.

    Research output: Contribution to journalArticlepeer-review

  29. Published

    Modelling the linkage between coral assemblage structure and pattern of environmental forcing

    Sandin, S. A., Eynaud, Y., Williams, G. J., Edwards, C. & McNamara, D., 14 Oct 2020, In: Royal Society Open Science. 7, 10, 200565.

    Research output: Contribution to journalArticlepeer-review

  30. Published

    Possible control of acute outbreaks of a marine fungal pathogen by nominally herbivorous tropical reef fish

    Neal, B., Honisch, B., Warrender, T., Williams, G. J., Work, T. & Price, N., 12 Jul 2020, In: Oecologia. 193, 3, p. 603-617

    Research output: Contribution to journalArticlepeer-review

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