Jeffrey Kelleway

Mr, Dr

  • 249 Citations
  • 10 h-Index
20052018
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Personal profile

Biography

I have been studying wetland ecosystems for over a decade. My early research on the ecological impacts of recreation on saltmarshes introduced me to the wonders of coastal wetlands - complex, fragile and largely understudied ecosystems. For the next five years I worked in government research roles, incorporating wetland mapping, condition assessment and wetland management planning, as well as extensive field, lab and method development work for assessing ecosystem response to environmental water in iconic Murray-Darling Basin wetlands. I have also undertaken roles as an ecologist in the northern Canadian wilderness and the private sector in Australia.

 

Current research

My research is focused on the ecosystem function of wetlands – that is, what roles do they play within nature and what ecosystem services do they provide for us? This incorporates elements of ecology, geomorphology and biogeochemistry, among other environmental science fields.

I have specific interest in the carbon sequestration potential, or ‘blue carbon’, of saltmarsh and mangrove wetlands. The biogeochemical conditions in these habitats are conducive to long-term carbon retention, with carbon-rich sediments continuing to accrete over long periods of time, anoxic conditions slowing down the decay of organic material and the influence of marine waters minimising the release of methane to the atmosphere.

My research aims to improve understanding of the quantity and character blue carbon stocks in coastal wetlands and their response to environmental change. This includes assessing the importance of geomorphic setting to carbon stocks, as well as identifying contributions of autochthonous (resulting from primary production within the ecosystem) and allochthonous (imported from adjacent ecosystems or elsewhere in the catchment) sources to carbon stocks. Improved understanding of the processes driving carbon sequestration in coastal saltmarshes as well as improved methodologies for measuring carbon dynamics within and between ecosystems will also help to inform regional and global carbon management and potential carbon offset schemes.

 

Potential student projects

-          Determining the carbon storage potential of coastal Melaleuca and Casuarina wetlands

-          Mangrove encroachment of saltmarshes – what are the implications for ecosystem function, ecosystem services and biodiversity?

-          Quantifying the blue carbon outcomes of tidal wetland restoration

-          Tracking environmental change through the analysis of coastal wetland soil cores

-          Identifying priority sites for sea level rise adaptation and ecosystem service delivery by coastal wetlands

-          What is the contribution of floodplain carbon to riverine food webs?

Education/Academic qualification

Science, PhD

1 Mar 201327 Jan 2017

Environmental Science, Bachelor of Environmental Science (Geography) Class 1 Honours

1 Mar 20011 Nov 2004

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mangrove Earth & Environmental Sciences
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Carbon Chemical Compounds
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Projects 2017 2017

Does tidal restoration lead to carbon sequestration gains by coastal wetlands?

Kelleway, J., Gadd, P., Zawadzki, A., Saintilan, N., Heijnis, H., Rogers, K. & Owers, C.

1/07/17 → …

Project: Research

Research Output 2005 2018

  • 249 Citations
  • 10 h-Index
  • 16 Article
  • 3 Chapter
  • 1 Review article

Carbon isotope fractionation in the mangrove Avicennia marina has implications for food web and blue carbon research

Kelleway, J. J., Mazumder, D., Baldock, J. A. & Saintilan, N. 31 May 2018 In : Estuarine, Coastal and Shelf Science. 205, p. 68-74 7 p.

Research output: Contribution to journalArticle

isotope fractionation
Avicennia marina
marina
mangrove
food webs

Climate change impacts on the coastal wetlands of Australia

Saintilan, N., Rogers, K., Kelleway, J. J., Ens, E. & Sloane, D. R. 23 Feb 2018 In : Wetlands. 10 p.

Research output: Contribution to journalArticle

coastal wetland
Wetlands
Climate change
mangrove
Sea level

Can we manage coastal ecosystems to sequester more blue carbon?

Macreadie, P. I., Nielsen, D. A., Kelleway, J. J., Atwood, T. B., Seymour, J. R., Petrou, K., Connolly, R. M., Thomson, A. C. G., Trevathan-Tackett, S. M. & Ralph, P. J. 2017 In : Frontiers in Ecology and the Environment. 15, 4, p. 206-213 8 p.

Research output: Contribution to journalArticle

carbon sequestration
top-down control
physical disturbance
bioturbation
ecosystems

Carbon sequestration by Australian tidal marshes

Macreadie, P. I., Ollivier, Q. R., Kelleway, J. J., Serrano, O., Carnell, P. E., Ewers Lewis, C. J., Atwood, T. B., Sanderman, J., Baldock, J., Connolly, R. M., Duarte, C. M., Lavery, P. S., Steven, A. & Lovelock, C. E. 10 Mar 2017 In : Scientific Reports. 7, p. 1-10 10 p., 44071

Research output: Contribution to journalArticle

Open Access
File
carbon sequestration
marsh
organic carbon
carbon
buffering

Converting beach-cast seagrass wrack into biochar: a climate-friendly solution to a coastal problem

Macreadie, P. I., Trevathan-Tackett, S. M., Baldock, J. A. & Kelleway, J. J. 2017 In : Science of the Total Environment. 574, p. 90-94 5 p.

Research output: Contribution to journalArticle

Beaches
Climate
seagrass
beach
Carbon

Prizes

science
environmental science
young