Dr Kathryn McMahon
|Telephone:||(61 8) 6304 5145|
|Mobile:||0403 820 104|
- Environmental Investigations and Monitoring
- Coastal and Marine Management
Background / Employment History
- 2012-present: Research Fellow, Edith Cowan University
- 2011-2012: Lecturer, Edith Cowan University
- 2005-2010: Postdoctoral Research Fellow, Edith Cowan University
- 2001-2005: Casual Lecturer and Tutor, University of Queensland
- 1997-1999: Environmental Officer, Water and Rivers Commission, Western Australia
- 1995: Research Assistant, University of Western Australia
- Australian Marine Sciences Association
- Australian Society for Phycology and Aquatic Botany
- Australian Coastal Society
- Coastal & Estuarine Research Federation
Research Areas and Interests
I have three main streams of research in coastal biology and ecology largely focusing on seagrass ecosystems. I use a variety of tools and methods such as ‘manipulated’ and ‘observational’ field and laboratory studies using ‘eco-physiological’ and ‘molecular’ tools.
1. Human impacts in coastal ecosystems
- Largely focusing on impacts through light reduction, climate change, and dredging
- How do plants respond to different stressors (developing sub-lethal indicators)?
- What levels of stress can they cope with?
- What are the consequences of disturbance?
2. Seagrass-grazing interactions
- How much is consumed?
- How do plants cope with grazing?
3. Seagrass evolution and taxonomy
- What are the evolutionary relationships in seagrasses, particularly Posidonia and Halophila?
- Doctor of Philosophy, The University of Queensland, 2005 .
- Bachelor of Science Honours, The University of Western Australia, 2000 .
Recent Research Grants
- Protection of coastal ecosystems and marine resource management, The Department of Industry, Innovation, Climate Change, Science, Research and Tertiary Education , CRN - Grant, 2011 - 2016, $890,684.
- Defining thresholds and indicators of Primary Producer response to dredging related pressures, Western Australian Marine Science Institution, Grant, 2013 - 2015, $1,299,084.
- Ecological connectivity of Kimberley marine communities - WAMSI Kimberley Research Program, The Australian Institute of Marine Science, Western Australian Marine Science Institution Grant, 2013 - 2015, $215,554.
- Quantification of the Biodiversity of the Lake MacLeod Northern Ponds, Dampier Salt Limited Perth Division, Grant-Dampsalt, 2010 - 2014, $433,711.
- Undertaking Geographe Bay Keep Watch seagrass monitoring program, GeoCatch, Grant - Geocatch, 2014, $15,851.
- Improving capacity to predict impacts of dredging - modelling light and the response of seagrasses, Edith Cowan University, ECU Industry Collaboration - Grant, 2011 - 2012, $197,377.
- Seagrass Monitoring Program for Geographe Bay 2012 and 2013, GeoCatch, Grant - Geocatch, 2012 - 2013, $33,700.
- Developing indicators of nutrient-enrichment impacts on nearshore coastal reefs, Edith Cowan University, ECU Industry Collaboration - Grant, 2011, $110,073.
- Seagrass Monitoring Program for Geographe Bay 2011, Department of Water (WA), Grant, 2011, $3,121.
- Predicting climate change impacts on seagrasses - the effect of temperature and ocean acidification, Edith Cowan University, ECU Early Career Researcher - Grant, 2010 - 2011, $24,995.
- Latitudinal Gradients in Tolerance to Multiple Stressors of a Temperate Seagrass, Edith Cowan University, ECU Early Career Researcher - Grant, 2008 - 2010, $24,966.
- Research Study into Seagrass Wrack Movement at Geographe Bay , University of Western Australia, Grant, 2008 - 2010, $415,000.
- Impact of Dredging on Coral Communities, Woodside Energy Ltd, Grant, 2008 - 2009, $118,220.
- Attributes of a Sustainable Reef: Seagrass and Associated Megafauna, Great Barrier Reef Foundation, Grant, 2009, $3,000.
- Species diversity and distribution in the seagrass genus, Posidonia using morphological and molecular characters, Edith Cowan University, ECU Early Career Researcher - Grant, 2007 - 2008, $14,625.
- Determining Seagrass Distribution in the Swan-Canning River - Testing Methods, Department of Water (WA), Grant, 2008, $10,194.
- Recovery of Amphibolis seagrass following periods of light reduction, Department of Environment and Conservation WA, Grant, 2007 - 2008, $16,000.
- Habitat Use by Black Swans in the Swan River Estuary, Ernest Hodgkin Trust, Scholarship, 2006 - 2007, $2,182.
Recent Publications (within the last five years)
- Gartner, A., Tuya, F., Lavery, P., McMahon, K., (2013), Habitat preferences of macroinvertebrate fauna among seagrasses with varying structural forms. Journal of Experimental Marine Biology and Ecology, 439(N/A), 143-151, Amsterdam, Netherlands, DOI: 10.1016/j.jembe.2012.11.009.
- McMahon, K., Collier, C., Lavery, P., (2013), Identifying robust bioindicators of light stress in seagrasses: A meta-analysis. Ecological Indicators, 30(1), 7-15, Netherlands, DOI: http://dx.doi.org/10.1016/j.ecolind.2013.01.030.
- Lavery, P., McMahon, K., Weyers, J., Boyce, M., Oldham, CE., (2013), Release of dissolved organic carbon from seagrass wrack and its implications for trophic connectivity. Marine Ecology Progress Series, 494(1), 121-133, Ohne, Germany, DOI: 10.3354/meps10554.
- McMahon, K., Lavery, P., Mulligan, M., (2011), Recovery from the impact of light reduction on the seagrass Amphibolis griffithii, insights for dredging management. Marine Pollution Bulletin, 62(2), 270-283, DOI: 10.1016/j.marpolbul.2010.11.001.
- Gartner, A., Lavery, P., McMahon, K., Brearley, A., Barwick, H., (2010), Light reductions drive macroinvertebrate changes in Amphibolis griffithii seagrass habitat. Marine Ecology Progress Series, 401(1), 87-100, Olendorf/Luhn, Germany, DOI: 10.3354/meps08367.
- McMahon, K., Waycott, M., (2009), New record for Halophila decipiens Ostenfeld in Kenya based on morphological and molecular evidence. Aquatic Botany, 91(4), 318-320, The Netherlands, DOI: 10.1016/j.aquabot.2009.07.008.
- Eklof, JS., McMahon, K., Lavery, P., (2009), Effects of Multiple Disturbances in Seagrass Meadows: Shading Decreases Resilience to Grazing. Marine and Freshwater Research, 60(12), 1317-1327, Australia, DOI: 10.1071/MF09008.
- Lavery, P., McMahon, K., Mulligan, M., Tennyson, A., (2009), Interactive effects of timing, intensity and duration of experimental shading on Amphibolis griffithii. Marine Ecology Progress Series, 394(2009), 21-33, Ohne, Germany, DOI: 10.3354/meps08242.
- Arthur, K., McMahon, K., Limpus, C., Dennison, W., (2009), Feeding ecology of green turtles (Chelonia mydas) from Shoalwater Bay, Australia. Marine Turtle Newsletter, 2009(123), 6-12, United States.
Research Student Supervision
- Master of Science (Environmental Management), The Impact Of Black Swan (cygnus Ataratus) Grazing On The Seagrass Halophila Ovalis In The Lower Swan River Estuary.
- Doctor of Philosophy, Trophic Implications Of Light Reductions For Amphibolis Griffithi Seagrass Communities.