Peter Davidson

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Bycatch in fisheries gear is one of the most common sources of anthropogenic at-sea mortality for marine birds (Wilcox & Donlan 2007, Finkelstein et al. 2008). Among the gear types known to capture marine birds, gillnets—with fisheries landings of nearly eight million metric tons per year worldwide (Watson et al. 2006)— take pursuit-divers (Tasker et al.(More)
The Royal Society report 'Geoengineering the Climate' identified solar radiation management using albedo-enhancing aerosols injected into the stratosphere as the most affordable and effective option for geoengineering, but did not consider in any detail the options for delivery. This paper provides outline engineering analyses of the options, both for(More)
In recent years, one-way car sharing systems have gained momentum across the world with their promise to encourage more sustainable urban mobility models. However, economic viability of car sharing is still uncertain due to high investment cost for station and fleet deployment, as well as high operation cost for fleet management and rebalancing.(More)
We have developed a laser-aligned measuring device to facilitate the measurement of linear hand dimensions. Our objective has been to make a simple, clinically applicable device for anthropometry of the hands in patients with arthritis in order to gauge the progression of hand deformities. The system provides an alternative to the use of rules, tapes,(More)
There have been conflicting reports as to the extent that copper-chromium-arsenic (CCA) treatments leach from timber. In New Zealand, vineyards utilise CCA-treated posts at a rate of 579 posts per hectare. This represents a potential CCA burden on the soil of 12, 21, and 17 kg/ha, respectively, for the three elements. Given a replacement rate of 4% per(More)
Recently there has been renewed interest in alternative modelling approaches, driven by recognised deficiencies in the traditional four step model. One stream of development has come through improved modelling of individual and household travel scheduling and joint decision making, under the umbrella of tour-based and activity-based modelling. Another(More)
Past use of GAC to treat MTBE-impacted water resulted in difficulties due to the physical and chemical characteristics of MTBE. Results of several full-scale applications suggest that some GACs perform poorly when MTBE is present in the water to be treated (e.g., McKinnon and Dyksen, 1984; Creek and Davidson, 1998). In consideration of this, an in-depth(More)
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