Mr Len McKenzie ~ Principal Research Officer
TropWater
- About
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- Experience
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- 1998 to 2012 - Principal Scientist, QLD DAFF (Cairns)
- 1992 to 1998 - Biologist, QLD DPI&F (Cairns)
- 1990 to 1992 - Technical Officer, QLD DPI&F (Cairns)
- 1986 to 1989 - Research Assistant, James Cook University (Townsville)
- Research Disciplines
- Socio-Economic Objectives
I am a seagrass and coastal ecosystems ecologist. My research facilitates the protection, conservation, biological diversity, rehabilitation, management and sustainable development of seagrass resources. I am particularly interested in the status and condition of seagrass resources across a range of scales (from local to global), understanding the role of disturbance, determining thresholds of concern and investigating resilience of seagrass ecosystems. I am also interested in the relationship between seagrass and associated fauna, the impacts of declining water quality and climate change.
- Publications
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These are the most recent publications associated with this author. To see a detailed profile of all publications stored at JCU, visit ResearchOnline@JCU. Hover over Altmetrics badges to see social impact.
- Journal Articles
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- McKenzie L, Langlois L and Roelfsema C (2022) Improving Approaches to Mapping Seagrass within the Great Barrier Reef: From Field to Spaceborne Earth Observation. Remote Sensing, 14 (11).
- Carter A, McKenna S, Rasheed M, Collier C, McKenzie L, Pitcher R and Coles R (2021) Synthesizing 35?years of seagrass spatial data from the Great Barrier Reef World Heritage Area, Queensland, Australia. Limnology and Oceanography Letters, 6 (4). pp. 216-226
- Collier C, Langlois L, McMahon K, Udy J, Rasheed M, Lawrence E, Carter A, Fraser M and McKenzie L (2021) What lies beneath: predicting seagrass below-ground biomass from above-ground biomass, environmental conditions and seagrass community composition. Ecological Indicators, 121.
- Dalby O, Sinha I, Unsworth R, McKenzie L, Jones B and Cullen-Unsworth L (2021) Citizen science driven big data collection requires improved and inclusive societal engagement. Frontiers in Marine Science, 8.
- McKenzie L, Yoshida R, Aini J, Andrefouet S, Colin P, Cullen-Unsworth L, Hughes A, Payri C, Rota M, Shaw C, Skelton P, Tsuda R, Vuki V and Unsworth R (2021) Seagrass ecosystems of the Pacific Island countries and territories: a global bright spot. Marine Pollution Bulletin, 167.
- McKenzie L, Yoshida R, Aini J, Andrefouet S, Colin P, Cullen-Unsworth L, Hughes A, Payri C, Rota M, Shaw C, Tsuda R, Vuki V and Unsworth R (2021) Seagrass ecosystem contributions to people's quality of life in the Pacific Island Countries and Territories. Marine Pollution Bulletin, 167.
- Adams M, Koh E, Vilas M, Collier C, Lambert V, Sisson S, Quiroz M, McDonald-Madden E, McKenzie L and O'Brien K (2020) Predicting seagrass decline due to cumulative stressors. Environmental Modelling & Software, 130.
- Collier C, Carter A, Rasheed M, McKenzie L, Udy J, Coles R, Brodie J, Waycott M, O’Brien K, Saunders M, Adams M, Martin K, Honchin C, Petus C and Lawrence E (2020) An evidence-based approach for setting desired state in a complex Great Barrier Reef seagrass ecosystem: a case study from Cleveland Bay. Environmental and Sustainability Indicators, 7.
- McKenzie L and Yoshida R (2020) Over a decade monitoring Fiji's seagrass condition demonstrates resilience to anthropogenic pressures and extreme climate events. Marine Pollution Bulletin, 160.
- McKenzie L, Nordlund L, Jones B, Cullen-Unsworth L, Roelfsema C and Unsworth R (2020) The global distribution of seagrass meadows. Environmental Research Letters, 15 (7).
- Duffy J, Benedetti-Cecchi L, Trinanes J, Muller-Karger F, Ambo-Rappe R, Boström C, Buschmann A, Byrnes J, Coles R, Creed J, Cullen-Unsworth L, Diaz-Pulido G, Duarte C, Edgar G, Fortes M, Goni G, Hu C, Huang X, Hurd C, Johnson C, Konar B, Krause-Jensen D, Krumhansl K, Macreadie P, Marsh H, McKenzie L, Mieszkowska N, Miloslavich P, Montes E, Nakaoka M, Norderhaug K, Norlund L, Orth R, Prathep A, Putman N, Samper-Villarreal J, Serrao E, Short F, Pinto I, Steinberg P, Stuart-Smith R, Unsworth R, van Keulen M, van Tussenbroek B, Wang M, Waycott M, Weatherdon L, Wernberg T and Yaakub S (2019) Toward a coordinated global observing system for seagrasses and marine macroalgae. Frontiers in Marine Science, 6. pp. 1-26
- Unsworth R, McKenzie L, Collier C, Cullen-Unsworth L, Duarte C, Eklöf J, Jarvis J, Jones B and Nordlund L (2019) Global challenges for seagrass conservation. Ambio, 48. pp. 801-815
- More
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ResearchOnline@JCU stores 57+ research outputs authored by Mr Len McKenzie from 2007 onwards.
- Current Funding
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Current and recent Research Funding to JCU is shown by funding source and project.
Great Barrier Reef Marine Park Authority - Contract Research
Spatial and temporal trends in the health and resilience of Great Barrier Reef inshore seagrass meadows in relation to water quality
- Indicative Funding
- $7,916,164 over 13 years
- Summary
- The aim of this research is to monitor the abundance and species composition of seagrass, and identify areas of seagrass that have been significantly impacted by flood plumes in areas important to major dugong populations in the Great Barrier Reef World Heritage Area.
- Investigators
- Len McKenzie in collaboration with Naomi Smith, R Yoshida, Catherine Collier and Lucas Langlois (TropWater)
- Keywords
- Seagrass habitats; Environmental Monitoring; Marine monitoring; Dugong populations; Great Barrier Reef
Great Barrier Reef Marine Park Authority - Contract Research
Seagrass thermal stress risk model for the inshore Great Barrier Reef.
- Indicative Funding
- $20,073 over 1 year
- Summary
- Seagrass meadows are at risk from decline caused by thermal stress, and this will impact the ecosystems and communities who depend on the goods and benefits they provide. There is currently no spatial and temporal product that indicates seagrass exposure to thermal stress. This proposal outlines a staged project that will deliver a model of thermal stress risk. Working in collaboration with First Nations rangers, temperature loggers will be deployed across thermal exposure gradients in the inshore Reef. These data will be used to calibrate and validate a seagrass thermal stress risk model for the inshore Reef.
- Investigators
- Catherine Collier, Len McKenzie and Lucas Langlois (TropWater)
- Keywords
- Thermal Stress; Climate Change; Seagrass; Inshore; First Nations; Monitoring
Great Barrier Reef Foundation - Traditional Owner Healing Country Grant
Seagrass Monitoring and Protection in Wuthathi Sea Country
- Indicative Funding
- $55,834 over 1 year (administered by Wuthathi Aboriginal Corporation)
- Summary
- Wuthathi land and sea country in far northern Cape York extends from Captain Billy landing south to Temple Bay and includes Shelburne Bay and Raine Island. JCU will work with Wuthathi rangers to map coastal seagrass habitats in Wuthathi. A range of techniques will be adopted, including helicopter surveys and airborne/spaceborne imagery (UAV drone and satellite) for intertidal and shallow subtidal habitats and drop cameras in deeper subtidal waters. Wuthathi rangers will be trained in seagrass mapping and monitoring techniques to facilitate continued monitoring of seagrass habitats in Wuthathi sea country.
- Investigators
- Catherine Collier, Len McKenzie and Lucas Langlois (TropWater)
- Keywords
- Seagrass; Drone; Remote Sensing; First Nations; Cape York Frog; Great Barrier Reef
- Collaboration
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The map shows research collaborations by institution from the past 7 years.
Note: Map points are indicative of the countries or states that institutions are associated with.- 5+ collaborations
- 4 collaborations
- 3 collaborations
- 2 collaborations
- 1 collaboration
- Indicates the Tropics (Torrid Zone)
My research areas
Similar to me
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Dr Alexandra CarterTropWater
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Dr Michael RasheedTropWater
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Ms Skye McKennaTropWater
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Dr Paul YorkTropWater
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Dr Catherine CollierTropWater