Dr. Mark Williamson

In fact, as Mark Williamson, an ecologist at the University of York, notes in Biological Invasions, the presence of an exotic species merely reflects the effort we've put into establishing its company.
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"It only reflects the fact that species are more likely both to be transported from disturbed areas and to arrive in them, because of human activities," Williamson writes.

t Cantho University, Vietnam Professor Phil Weaver, National Oceanography Centre, Southampton Dr Mark Spalding, The Nature Conservancy, Newmarket Matthew Bunce, MSc, Marine and Coastal Policy Research Group, University of Plymouth Dr J Murray Roberts, Scottish Association for Marine Science, Oban Dr Olivia Langmead, Marine & Coastal Policy Research Group, University of Plymouth Professor Ray Seed, School of Ocean Sciences, University of Wales-Bangor Dr Sascha K. Hooker, Sea Mammal Research Unit, University of St Andrews Dr Paul Johnston, University of Exeter Sue Wells, MSc, c/o UNEP-World Conservation Monitoring Centre, Cambridge Alastair Harborne, MSc, School of Biosciences, University of Exeter Dr Andrew Balmford, Department of Zoology, University of Cambridge Professor Mark Williamson, Department of Biology, University of York Dr Andrew R.G. Price, Department of Biological Sciences, University of Warwick Dr Clare Bradshaw, Dept of Systems Ecology, Stockholm University, Sweden Profes

Looking at the archived threads to the issue there was one reply from Mark Williamson, University of York, UK.
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Dr Mark Williamson, Department of Biology, University of York, York, YO10 5DD, UK