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Research Researchers Senior Researchers David Wardle
Research Researchers Senior Researchers David Wardle
| David Wardle |
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 The research carried out by my colleagues and myself is focused on exploring the links between aboveground and belowground communities, and how these in turn drive the functioning of terrestrial ecosystems. This involves both field and laboratory based studies, and most of the field work is performed in Swedish boreal forest and subarctic tundra communities and in New Zealand rainforests. Current projects focus on the community and ecosystem effects of invasive animals, the ecological consequences of wildfire, ecosystem succession and retrogression, aspects of island ecology, and how changes in the species composition of plant communities influence aboveground and belowground processes. ___________________________________________ Current Position: Professor of Soil and Plant Ecology Current Research Activities - click here Academic training Professional activities and recognition Current PhD students and postdocs Former PhD students and postdocs Publications Contact information NEW POSITIONS AVAILABLE 1. PhD studentship, project title 'The ecological significance of within-species leaf trait variability: a test using an island area gradient' (deadline for applications: 31 March 2010). For details click here. 2. PhD studentship, project title 'The influence of wildfire-derived charcoal on ecosystem carbon storage and fluxes ' (deadline for applications: 31 March 2010). For details click here. 3. Postdoctoral Researcher (2 years) in Ecosystem Ecology (deadline for applications: 31 March 2010). For details click here. 4. Assistant Professor (4 years) in Plant Ecology; research position (deadline for applications: 15 April 2010). Details coming here soon. Academic training: 1990: PhD in Soil Ecology, University of Calgary, Canada 1986: BSc (first class honours), Canterbury University, Christchurch, New Zealand Citizenship: New Zealand; Permanent Residency: Sweden. Professional activities and recognition: Current Editorial work: Science - Board of Reviewing Editors (2009-) Ecology and Ecological Monographs - Board of Editors (2005-) New Zealand Journal of Ecology - Editorial Board (1997-) Pedobiologia - Editorial Board (1998-) Ideas in Ecology and Evolution - Editorial Board (2008-) Previous Editorial work: Ecology Letters - Receiving Editor (2001-2006) Soil Biology and Biochemistry - Subject Editor (1997 - 2002) Biology and Fertility of Soils - Editorial Board (1999 - 2002) New Zealand Journal of Ecology - Chief Editor (1998-2003). Adjunct Positions: Adjunct Professor - University of Canterbury, New Zealand Affiliate Professor - University of Alaska at Fairbanks Research Associate - Landcare Research, Lincoln, New Zealand Leader of the ‘Forest Vegetation Ecology’ Competence Area within the Dept of Forest Ecology and Management. Recipient of the 1999 New Zealand Association of Scientists Research Medal, awarded annually to a New Zealand scientist under 40 years of age. Recipient of the 2001 New Zealand Ecological Society annual award, awarded annually to an ecologist on the basis of research and application of ecology. Elected in 2003 as a Fellow of the Royal Society of New Zealand, which is New Zealand’s primary academy of the sciences. Recipient of an inaugural SLU ‘Excellence Award’ (2006). Recognised by ISI (Thompson Scientific - Web of Science) since 2006 as a "Highly Cited" scientist in the field of Ecology/Environment. Current Postdocs and Ph.D. students advised or co-advised: Micael Jonsson (postdoctoral researcher). Project: ‘Investigating the interaction between decomposer and litter species richness along a boreal forest successional gradient. Paul Kardol (postdoctoral researcher). Project: Aboveground-belowground feedbacks in Swedish and New Zealand forests. Benjamin Jackson (PhD student). Project: Regulation of litter decomposition and nutrient availability in Swedish and New Zealand forests (advisors: D. Wardle, M.-C. Nilsson and D. Peltzer). Maja Sundqvist (PhD student). Project: Nitrogen and phosphorus limitation of plant communities across elevational transects in subarctic tundra (advisors: D. Wardle, R. Giesler and B. Graae) Guillaume Bay (PhD student). Project: Role of biodiversity of nitrogen fixing cyanobacteria in feather mosses on nitrogen input to boreal forest ecosystems (advisors: M.-C. Nilsson, D. Wardle and U. Rasmussen) Till Jochum (PhD student). Project: Natural regeneration of broadleaved trees in northern Sweden (advisors: M.-C. Nilsson and D. Wardle) Mel Durrett (Ph.D student). Project: ‘Spatial and Temporal Variation in Nutrient Inputs by Seabirds on Offshore New Zealand Islands’. (advisors: C. Mulder and D. Wardle; based at the University of Alaska, USA). Ann Tomlinson (PhD student). Project: ‘Interactions between native and introduced millipedes (Diplopoda) and their impact on decomposition processes in native forests in the Auckland region’ (advisors: J. Beggs, D. Wardle and P. Johnson; based at Auckland University, New Zealand) Former Postdocs and Ph.D. Students advised or co-advised: Fujio Hyodo (postdoc 2007-2009) Hiroko Kurokawa (postdoc 2005-2007; advisors: D. Wardle and D. Peltzer) Fiona Dearden (PhD student 2003-2007) Helena Dehlin (PhD student 2002-2006; advisors: M-C Nilsson and D. Wardle) Katja Ilmarinen (PhD student 2002-2006; advisors: J. Mikola and D. Wardle) Tadashi Fukami (postdoc 2003-2005; advisors: D. Wardle and P. Bellingham) Kate Orwin (PhD student 2000-2004; advisors: D. Wardle and L. Greenfield) Wendy Williamson (postdoc 1999-2002) Duane Peltzer (postdoc 2000-2001) Lena Jonsson (postdoc 1998-1999; advisors: M.-C. Nilsson and D. Wardle) Juha Mikola (postdoc 1998-1999) Fabienne Charpentier (postdoc 1995-1996) Lab rotation (visiting and collaborating) Postdocs and Ph.D students Gregory Crutsinger (Ph.D. student, University of Tennessee, USA) (2007) Ruth Gregg (Ph.D student, University of Lancaster, UK) (2006, 2007) Enrique Doblas-Miranda (Ph. D. student, University of Granada, Spain) (2005, 2007) Christien Ettema (Postdoc, Wageningen University, Netherlands) (2002)
Dearden, F. M. and Wardle, D. A. (2008). The potential for forest canopy litterfall interception by a dense fern understorey, and the consequences for litter decomposition. Oikos 117: 83-92. Wardle, D. A., Lagerström, A. and Nilsson, M-C. (2008) Context dependent effects of plant species and functional group loss on vegetation invasibility across an island area gradient. Journal of Ecology 96: 1174-1186. Wardle, D. A., Wiser, S. K., Allen, R. B., Doherty, J. E., Bonner, K. I. and Williamson, W. M. (2008). Aboveground and belowground effects of single tree removals after forty years in a New Zealand temperate rainforest. Ecology 89: 1232-1245. Lagerström, A., Nilsson, M.-C., Zackrisson, O. and Wardle, D. A. (2007). Ecosystem input of nitrogen through biological fixation in feather mosses during ecosystem retrogression. Functional Ecology 21: 1027-1033. Wardle, D. A., Bellingham, P. J., Mulder, C. P. H. and Fukami, T. (2007) Promotion of ecosystem carbon sequestration by invasive predators. Biology Letters 3: 479-482. Fukami, T., Wardle, D. A,, Bellingham, P. J., Mulder, C. P. H., Towns, D. R., Yeates, G. W., Bonner, K. I., Durrett, M. S., Grant-Hoffman, M. N. and Williamson, W. M. (2006) Above- and below-ground impacts of introduced predators in seabird-dominated island ecosystems. Ecology Letters 9: 1299-1307. Orwin, K. H., Wardle, D. A. and Greenfield, L. G. (2006) Ecological consequences of carbon substrate identity and diversity. Ecology 87: 580-593. Wardle, D. A. (2006) The influence of biotic interactions on soil biodiversity. Ecology Letters 9: 870-886. Wardle, D. A. and Zackrisson, O. (2005) Effects of species and functional group loss on island ecosystem properties. Nature 435: 806-810. Nilsson, M. C. and Wardle, D. A. (2005) Understory vegetation as a forest ecosystem driver: evidence from the northern Swedish boreal forest. Frontiers in Ecology and the Environment 3: 421-428. Wardle, D. A., Walker, L. R. and Bardgett, R. D. (2004) Ecosystem properties and forest decline in contrasting long-term chronosequences. Science 305: 509-513. Wardle, D. A., Bardgett, R. D., Klironomos, J. N., Setälä, H., Van der Putten, W. H. and Wall, D. H. (2004) Ecological linkages between aboveground and belowground biota. Science 304: 1629-1633. Wardle, D. A., Yeates, G. W., Barker, G. M., Bellingham, P. J., Bonner, K. I. and Williamson, W. (2003) Island biology and ecosystem functioning in epiphytic soil communities. Science 301: 1717-1720. Wardle, D. A., Hörnberg, G., Zackrisson, O., Kalela-Brundin, M., and Coomes, D. A., (2003) Long term effects of wildfire on ecosystem properties across an island area gradient. Science 300: 972-975. Bardgett, R. D. and Wardle, D. A. (2003) Herbivore mediated linkages between aboveground and belowground communities. Ecology 84: 2258-2268. Ettema, C., and Wardle, D. A. (2002) Spatial soil ecology. Trends in Ecology and Evolution 17: 177-183. Wardle, D. A., Barker, G. M., Yeates, G. W., Bonner, K. I., and Ghani, A. (2001) Introduced browsing mammals in natural New Zealand forests: aboveground and belowground consequences. Ecological Monographs 71: 587-614. Wardle, D. A., Bonner, K. I., Barker, G. M., Yeates, G. W., Nicholson, K. S., Bardgett, R. D., Watson, R. N. and Ghani, A. (1999) Plant removals in perennial grassland: vegetation dynamics, decomposers, soil biodiversity and ecosystem properties. Ecological Monographs 69: 535-568. Wardle, D. A., Zackrisson, O., Hörnberg, G. and Gallet, C. (1997) Influence of island area on ecosystem properties. Science 277: 1296-1299. |