Staff Profile
Dr James Guest
Reader in Coral Reef Ecology
- Email: james.guest1@ncl.ac.uk
- Telephone: +44 (0)191 2083619
- Personal Website: https://www.coralassistlab.com/
- Address: School of Natural & Environmental Sciences
4th Floor, Ridley Building 2,
Claremont Road
Newcastle University
Newcastle upon Tyne
NE1 7RU
United Kingdom
Background
My research interests are diverse within coral reef science and include diseases, reproductive and larval ecology, recruitment dynamics, long term community change, bleaching and restoration ecology and include use of various techniques ranging from large scale manipulative field ecology experiments to molecular biology methods including fluorescent in situ hybridisation (FISH) and next generation sequencing of coral symbionts. I have lived in five countries and worked with a diverse group of scientists from a range of disciplines in large, international multi-disciplinary research groups. For example, between 2005 and 2008 I was employed by Newcastle University (UK) as part of an international European Union funded project, involving a consortium of scientists from six countries, to investigate reef restoration techniques on degraded reefs in the Philippines. I was also appointed as a member of the Reef Restoration Working Group of the Coral Reef Targeted Research program of the World Bank-Global Environment Facility (GEF-CRTR, www.gefcoral.org), a multi-million dollar five year incentive to investigate some of the most pressing problems facing coral reefs. An impact case study based on this work received a 4 star rating in the 2014 Research Excellence Framework indicative of research quality that is world-leading in terms of originality, significance and rigour. I was awarded a prestigious three year Lee Kuan Yew Postdoctoral Fellowship in 2009 and between 2012 and 2014 held a senior research fellowship jointly with the University of New South Wales and Nanyang Technological University in Singapore (NTU) to coordinate multidisciplinary research activities among a group of 17 marine ecologists and molecular biologists from Australia and Singapore. During 2016 and 2017 I was a Powell Center Fellow at the University of Hawai'i's Institute of Marine Biology, investigating methods of identifying resilient coral reefs against a backdrop of degradation. From 2017 to 2022 I led a European Research Council Consolidator Grant at Newcastle University to bring together the various branches of my research and to assemble a world class research team to tackle questions facing tropical coral reefs. I am currently a Reader in Coral Reef Ecology and lead the Coralassist Lab at Newcastle University.
Google Scholar
Publications
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Articles
- Lachs L, Ward A, Beauchamp EA, Edwards AJ, Ferrari R, Figueira WF, Golbuu Y, Humanes A, Martinez HM, Pygas DR, Sommer B, Van Der Steeg E, Bythell JC, Guest JR. Rising cover amid population density decline: the unstable demography of a reef-building coral. Royal Society Open Science 2025, 12(7), 250271.
- Mera H, Edwards AJ, Guest JR, Lachs L, Quigley KM, Willis BL, Baird AH. Patterns of coral spawning in the Palm Islands, Great Barrier Reef. Coral Reefs 2025, 44, 1789–1803.
- Mendoza Quiroz S, Banaszak AT, McGonigle ML, Bickel AR, Guest JR, Miller MW. Influence of attachment techniques on coral seeding unit deployment cost and performance. Restoration Ecology 2025, epub ahead of print.
- Lachs L, Donner S, Edwards AJ, Golbuu Y, Guest J. Higher spatial resolution is not always better: evaluating satellite-sensed sea surface temperature products for a west Pacific coral reef system. Scientific Reports 2025, 15, 1321.
- van der Steeg E, Humanes A, Bythell JC, Craggs JR, Edwards AJ, Golbuu Y, Lachs L, Miller MW, Randle JL, Guest JR. Grazing deterrents improve survival of outplanted juvenile corals. Coral Reefs 2025, epub ahead of print.
- de la Torre Cerro R, Beauchamp E, Buzzoni D, Craggs J, East H, Edwards A, Golbuu Y, Humanes A, Lachs L, Martinez H, Mill A, van der Steeg E, Ward A, Guest JR. Evaluating the role of moonlight-darkness dynamics as proximate spawning cues in an Acropora coral. Coral Reefs 2025, 44, 501-512.
- Humanes A, Lachs L, Beauchamp E, Bukurou L, Buzzoni D, Bythell J, Craggs JRK, de la Torre Cerro R, Edwards AJ, Golbuu Y, Martinez HM, Palmowski P, van der Steeg E, Sweet M, Ward A, Wilson AJ, Guest JR. Selective breeding enhances coral heat tolerance to marine heatwaves. Nature Communications 2024, 15(1), 8703.
- Suggett DJ, Guest J, Camp EF, Edwards AJ, Goergen L, Hein M, Humanes A, Levy JS, Montoya-Maya PH, Smith DJ, Vardi T, Winters RS, Moore T. Restoration as a meaningful aid to ecological recovery of coral reefs. npj Ocean Sustainability 2024, 3, 20.
- Edwards AJ, Guest J, Humanes A. Rehabilitating coral reefs in the Anthropocene. Current Biology 2024, 34(9), R399-R406.
- Floyd M, East HK, Traganos D, Musthag A, Guest J, Hashim AS, Evans V, Helber S, Unsworth RKF, Suggitt AJ. Rapid seagrass meadow expansion in an Indian Ocean bright spot. Scientific Reports 2024, 14, 10879.
- Lachs L, Bozec Y-M, Bythell JC, Donner SD, East HK, Edwards AJ, Golbuu Y, Gouezo M, Guest JR, Humanes A, Riginos C, Mumby PJ. Natural selection could determine whether Acropora corals persist under expected climate change. Science 2024, 386(6727), 1289-1294.
- Lachs L, Humanes A, Mumby PJ, Donner SD, Bythell JC, Beauchamp E, Bukurou L, Buzzoni D, de la Torre Cerro R, East HK, Edwards AJ, Golbuu Y, Martinez HM, van der Steeg E, Ward A, Guest JR. High coral heat tolerance at local-scale thermal refugia. PLOS Climate 2024, 3(7), e0000453.
- Miller MW, Mendoza Quiroz S, Lachs L, Banaszak AT, Chamberland VF, Guest JR, Gutting AN, Latijnhouwers KRW, Sellares-Blasco RI, Virdis F, Villalpando MF, Petersen D. Assisted sexual coral recruits show high thermal tolerance to the 2023 Caribbean mass bleaching event. PLoS ONE 2024, 19(9), e0309719.
- Lachs L, Humanes A, Pygas DR, Bythell JC, Mumby PJ, Ferrari R, Figueira WF, Beauchamp E, East HK, Edwards AJ, Golbuu Y, Martinez HM, Sommer B, van der Steeg E, Guest JR. No apparent trade-offs associated with heat tolerance in a reef-building coral. Communications Biology 2023, 6(1), 400.
- Cannon SE, Donner SD, Liu A, GonzalezEspinosa PC, Baird AH, Baum JK, Bauman AG, Beger M, Benkwitt CE, Birt MJ, Chancerelle Y, Cinner JE, Crane NL, Denis V, Depczynski M, Fadli N, Fenner D, Fulton CJ, Golbuu Y, Graham NAJ, Guest J, Harrison HB, Hobbs J-PA, Hoey AS, Holmes TH, Houk P, Januchowski-Hartley FA, Jompa J, Kuo C-Y, Limmon GV, Lin YV, McClanahan TR, Muenzel D, Paddack MJ, Planes S, Pratchett MS, Radford B, Reimer JD, Richards ZT, Ross CL, Rulmal J, Sommer B, Williams GJ, Wilson SK. Macroalgae exhibit diverse responses to human disturbances on coral reefs. Global Change Biology 2023, 29(12), 3318-3330.
- Guest J, Baria-Rodriguez MV, Toh TC, dela Cruz D, Vicentuan K, Gomez E, Villanueva R, Steinberg P, Edwards A. Live slow, die old: larval propagation of slow-growing, stress-tolerant corals for reef restoration. Coral Reefs 2023, 42, 1365-1377.
- Husband E, East HK, Hocking EP, Guest J. Honduran Reef Island Shoreline Change and Planform Evolution over the Last 15 Years: Implications for Reef Island Monitoring and Futures. Remote Sensing 2023, 15(19), 4787.
- Lachs L, Donner SD, Mumby PJ, Bythell JC, Humanes A, East HK, Guest JR. Emergent increase in coral thermal tolerance reduces mass bleaching under climate change. Nature Communications 2023, 14(1), 4939.
- Bonilla KG, Guest JR, Baria-Rodriguez MV. Contrasting reproductive strategies between stress-tolerant and competitive coral taxa. Coral Reefs 2023, 42, 717-728.
- Humanes A, Lachs L, Beauchamp EA, Bythell JC, Edwards AJ, Golbuu Y, Martinez HM, Palmowski P, Treuman A, van der Steeg E, van Hooidonk R, Guest JR. Within-population variability in coral heat tolerance indicates climate adaptation potential. Proceedings of the Royal Society B 2022, 289(1981), 20220872.
- Lachs L, Chong F, Beger M, East HK, Guest JR, Sommer B. SizeExtractR: A workflow for rapid reproducible extraction of object size metrics from scaled images. Ecology and Evolution 2022, 12(3), -.
- Elahi R, Edmunds PJ, Gates RD, Kuffner IB, Barnes BB, Chollett I, Courtney TA, Guest JR, Lenz EA, Toth LT, Viehman TS, Williams ID. Scale dependence of coral reef oases and their environmental correlates. Ecological Applications 2022, 32(7), e2651.
- Baird AH, Edwards AJ, Guest JR, Harii S, Hatta M, Lachs L, Mera H, Sinniger F, Abrego D, Ben-Zvi O, Bronstein O, Cabaitan PC, Cumbo VR, Eyal G, Eyal-Shaham L, Feldman B, Figueiredo J, Flot J-F, Grinblat M, Heyward A, Hidaka M, Hirose M, Iguchi A, Isomura N, Kinzie RA, Kitanobo S, Kuba A, Levy O, Loya Y, Mezaki T, Mohamed AR, Morita M, Nojima S, Nozawa Y, Prasetia R, Puill-Stephan E, Ramirez-Portilla C, Rapuano H, Rosenberg Y, Sakai Y, Sakai K, Shlesinger T, Terraneo TI, Yakovleva I, Yamamoto HH, Yamazato K. Coral spawning calendar for Sesoko Station, Okinawa, Japan. Galaxea, Journal of Coral Reef Studies 2022, 24(1), 41-49.
- Ferrari R, Lachs L, Pygas DR, Humanes A, Sommer B, Figueira WF, Edwards AJ, Bythell JC, Guest JR. Photogrammetry as a tool to improve ecosystem restoration. Trends in Ecology and Evolution 2021, 36(12), 1093-1101.
- Bonilla KG, Guest JR, dela Cruz DW, Baria-Rodriguez MV. Onset of sexual maturity of sexually propagated and wild colonies of the massive coral Favites abdita in northwestern Philippines. Invertebrate Reproduction & Development 2021, 65(3), 201-209.
- Courtney TA, Guest JR, Edwards AJ, Dizon RM. Linear extension, skeletal density, and calcification rates of the blue coral Heliopora coerulea. Coral Reefs 2021, 40, 1631-1635.
- Bouwmeester J, Edwards AJ, Guest JR, Bauman AG, Berumen ML, Baird AH. Latitudinal variation in monthly-scale reproductive synchrony among Acropora coral assemblages in the Indo-Pacific. Coral Reefs 2021, 40, 1411-1418.
- Lachs L, Bythell JC, East HK, Edwards AJ, Mumby PJ, Skirving WJ, Spady BL, Guest JR. Fine-tuning heat stress algorithms to optimise global predictions of mass coral bleaching. Remote Sensing 2021, 13(14), 2677.
- Baird AH, Guest JR, Edwards AJ, Bauman AG, Bouwmeester J, Mera H, Abrego D, Alvarez-Noriega M, Babcock RC, Barbosa MB, Bonito V, Burt J, Cabaitan PC, Chang C-F, Chavanich S, Chen CA, Chen C-J, Chen W-J, Chung F-C, Connolly SR, Cumbo VR, Dornelas M, Doropoulos C, Eyal G, Eyal-Shaham L, Fadli N, Figueiredo J, Flot J-F, Gan S-H, Gomez E, Graham EM, Grinblat M, Gutierrez-Isaza N, Harii S, Harrison PL, Hatta M, Ho NAJ, Hoarau G, Hoogenboom M, Howells EJ, Iguchi A, Isomura N, Jamodiong EA, Jandang S, Keyse J, Kitanobo S, Kongjandtre N, Kuo C-Y, Ligson C, Lin C-H, Low J, Loya Y, Maboloc EA, Madin JS, Mezaki T, Min C, Morita M, Moya A, Neo S-H, Nitschke MR, Nojima S, Nozawa Y, Piromvaragorn S, Plathong S, Puill-Stephan E, Quigley K, Ramirez-Portilla C, Ricardo G, Sakai K, Sampayo E, Shlesinger T, Sikim L, Simpson C, Sims CA, Sinniger F, Spiji DA, Tabalanza T, Tan C-H, Terraneo TI, Torda G, True J, Tun K, Vicentuan K, Viyakarn V, Waheed Z, Ward S, Willis B, Woods RM, Woolsey ES, Yamamoto HH, Yusuf S. An Indo-Pacific coral spawning database. Scientific Data 2021, 8(1), 35.
- Humanes A, Beauchamp EA, Bythell JC, Carl MK, Craggs JR, Edwards AJ, Golbuu Y, Lachs L, Martinez HM, Palmowski P, Paysinger F, Randle JL, van der Steeg E, Sweet M, Treumann A, Guest JR. An Experimental Framework for Selectively Breeding Corals for Assisted Evolution. Frontiers in Marine Science 2021, 8, 669995.
- Courtney TA, Barnes BB, Chollett I, Elahi R, Gross K, Guest JR, Kuffner IB, Lenz EA, Nelson HR, Rogers CS, Toth LT, Andersson AJ. Disturbances drive changes in coral community assemblages and coral calcification capacity. Ecosphere 2020, 11(4).
- Darling ES, McClanahan TR, Maina J, Gurney GG, Graham NAJ, Januchowski-Hartley F, Cinner JE, Mora C, Hicks CC, Maire E, Puotinen M, Skirving WJ, Adjeroud M, Ahmadia G, Arthur R, Bauman AG, Beger M, Berumen ML, Bigot L, Bouwmeester J, Brenier A, Bridge TCL, Brown E, Campbell SJ, Cannon S, Cauvin B, Chen CA, Claudet J, Denis V, Donner S, Estradivari -, Fadli N, Feary DA, Fenner D, Fox H, Franklin EC, Friedlander A, Gilmour J, Goiran C, Guest J, Hobbs J-PA, Hoey AS, Houk P, Johnson S, Jupiter SD, Kayal M, Kuo C-y, Lamb J, Lee MAC, Low J, Muthiga N, Muttaqin E, Nand Y, Nash KL, Nedlic O, Pandolfi JM, Pardede S, Patankar V, Penin L, Ribas-Deulofeu L, Richards Z, Roberts TE, Rodgers KS, Safuan CDM, Sala E, Shedrawi G, Sin TM, Smallhorn-West P, Smith JE, Sommer B, Steinberg PD, Sutthacheep M, Tan CHJ, Williams GJ, Wilson S, Yeemin T, Bruno JF, Fortin M-J, Krkosek M, Mouillot D. Social–environmental drivers inform strategic management of coral reefs in the Anthropocene. Nature Ecology & Evolution 2019, 3, 1341–1350.
- Leong RC, Marzinelli EM, Low J, Bauman AG, Lim EWX, Lim CY, Steinberg PD, Guest JR. Effect of coral-algal interactions on early life history processes in Pocillopora acuta in a highly disturbed coral reef system. Frontiers in Marine Science 2018, 5, 385.
- Guest JR, Edmunds PJ, Gates RD, Kuffner IB, Andersson AJ, Barnes BB, Chollett I, Courtney TA, Elahi R, Gross K, Lenz EA, Mitarai S, Mumby PJ, Nelson HR, Parker BA, Putnam HM, Rogers CS, Toth LT. A framework for identifying and characterising coral reef “oases” against a backdrop of degradation. Journal of Applied Ecology 2018, 55(6), 2865-2875.
- Chamberland VF, Petersen D, Guest JR, Petersen U, Brittsan M, Vermeij MJA. New Seeding Approach Reduces Costs and Time to Outplant Sexually Propagated Corals for Reef Restoration. Scientific Reports 2017, 7, 18076.
- Craggs J, Guest JR, Davis M, Simmons J, Dashti E, Sweet M. Inducing broadcast coral spawning ex situ: Closed system mesocosm design and husbandry protocol. Ecology and Evolution 2017, 7(24), 11066-11078.
- Keith SA, Maynard JA, Edwards AJ, Guest JR, Bauman AG, VanHooidonk R, Heron SF, Berumen ML, Bouwmeester J, Piromvaragorn S, Rahbek C, Baird AH. Coral mass spawning predicted by rapid seasonal rise in ocean temperature. Proceedings of the Royal Society B 2016, 283(1830), 20160011.
- Guest JR, Tun K, Low J, Vergés A, Marzinelli EM, Campbell AH, Bauman AG, Feary DA, Chou LM, Steinberg PD. 27 years of benthic and coral community dynamics on turbid, highly urbanised reefs off Singapore. Scientific Reports 2016, 6, 36260.
- Edwards AJ, Guest JR, Heyward AJ, Villanueva RD, Baria MV, Bollozos ISF, Golbuu Y. Direct seeding of mass-cultured coral larvae is not an effective option for reef rehabilitation. Marine Ecology Progress Series 2015, 525, 105-116.
- Guest JR, Baria MV, Gomez ED, Heyward AJ, Edwards AJ. Closing the circle: is it feasible to rehabilitate reefs with sexually propagated corals?. Coral Reefs 2014, 33(1), 45-55.
- Guest JR, Baird AH, Maynard JA, Muttaquin E, Edwards AJ, Campbell SJ, Yewdall K, Affendi YA, Chou LM. Contrasting Patterns of Coral Bleaching Susceptibility in 2010 Suggest an Adaptive Response to Thermal Stress. PLoS One 2012, 7(3), e33353.
- Guest JR, Dizon RM, Edwards AJ, Franco C, Gomez ED. How quickly do fragments of coral ‘self-attach’ after transplantation?. Restoration Ecology 2011, 19(2), 234-242.
- Baria MVB, Guest JR, Edwards AJ, Aliño PM, Heyward AJ, Gomez ED. Caging enhances post-settlement survival of juveniles of the scleractinian coral Acropora tenuis. Journal of Experimental Marine Biology and Ecology 2010, 394(1-2), 149-153.
- Vicentuan KC, Guest JR, Baria MV, Cabaitan PC, Dizon RM, Villanueva RD, Alino PM, Edwards AJ, Gomez ED, Heyward AJ. Multi-species spawning of corals in north-western Philippines. Coral Reefs 2008, 27(1), 83.
- Guest JR, Todd PA, Goh E, Sivaloganathan B, Reddy KP. Can giant clam (Tridacna squamosa) populations be restored on Singapore's heavily impacted coral reefs?. Aquatic Conservation 2008, 18(5), 570-579.
- Guest JR, Todd PA, Goh BPL, Chou LM. The effect of transplantation on reproduction in clonal ramets of Goniopora columna on Singapore's coral reefs. Invertebrate Reproduction and Development 2007, 50(3), 133-138.
- Huang D, Todd PA, Guest JR. Movement and aggregation in the fluted giant clam (Tridacna squamosa L.). Journal of Experimental Marine Biology and Ecology 2007, 342(2), 269-281.
- Guest JR, Baird AH, Goh BPL, Chou LM. Seasonal reproduction in equatorial reef corals. Invertebrate Reproduction and Development 2005, 48(1-3), 207-218.
- Bythell JC, Barer MR, Cooney RP, Guest JR, O'Donnell AG, Pantos O, Le Tissier MDA. Histopathological methods for the investigation of microbial communities associated with disease lesions in reef corals. Letters in Applied Microbiology 2002, 34(5), 359-364.
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Book Chapter
- Crawford A, Humanes A, Caldwell G, Guest J, van der Steeg E. Architecture for coral restoration: Using clay-based digital fabrication to overcome bottlenecks to coral larval propagation. In: Hvejsel MF; Cruz PJS, ed. Structures and Architecture: A Viable Urban Perspective?. London: CRC Press, 2022, pp.458-466.
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Editorial
- Baird AH, Guest JR. Spawning synchrony in scleractinian corals: Comment on Mangubhai & Harrison (2008). Marine Ecology - Progress Series 2009, 374, 301-304.
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Notes
- Peixoto RS, Voolstra CR, Baums IB, Camp EF, Guest J, Harrison PL, Montoya-Maya PH, Pollock FJ, Smith DJ, Wangpraseurt D, Banaszak AT, Chui APY, Shah N, Moore T, Fabricius KE, Vardi T, Suggett DJ. The critical role of coral reef restoration in a changing world. Nature Climate Change 2024, 14(12), 1219-1222.
- Bouwmeester J, Edwards AJ, Guest JR, Bauman AG, Berumen ML, Baird AH. Correction to: Latitudinal variation in monthly-scale reproductive synchrony among Acropora coral assemblages in the Indo-Pacific (Coral Reefs, (2021), 10.1007/s00338-021-02129-3). Coral Reefs 2021, 40, 1489.
- Guest J. Ecology: How reefs respond to mass coral spawning. Science 2008, 320(5876), 621-623.