Timothy Graham Jones

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Although coral reef health across the globe is declining as a result of anthropogenic impacts, relatively little is known of how environmental variability influences reef organisms other than corals and fish. Sponges are an important component of coral reef fauna that perform many important functional roles and changes in their abundance and diversity as a(More)
Heat and stable isotope tracers were used to study axial and radial water transport in relation to sapwood anatomical characteristics and internal water storage in four canopy tree species of a seasonally dry tropical forest in Panama. Anatomical characteristics of the wood and radial profiles of sap flow were measured at the base, upper trunk, and crown of(More)
We introduce one-dimensional sets to help describe and constrain the integral curves of an n-dimensional dynamical system. These curves provide more information about the system than the zero-dimensional sets (fixed points) do. In fact, these curves pass through the fixed points. Connecting curves are introduced using two different but equivalent(More)
Despite its importance, we still have a poor understanding of the level of connectivity between marine populations in most geographical locations. Taking advantage of the natural features of the southeast coast of New Zealand's North Island, we deployed a series of settlement stations and conducted plankton tows to capture recent settlers and planktonic(More)
Measurement of extracellular enzymic activity in wetland soils can give an indication of the ecosystems biogeochemical processes, and rates of nutrient and carbon cycling. Analysis of these have allowed researchers to gain an understanding of the ecosystems’ microbial ecology and how it can be affected by environmental factors. Here we give a detailed(More)
Peatlands and other terrestrial ecosystems export large amounts of dissolved organic carbon (DOC) to freshwater ecosystems. In catchments used for supplying drinking water, water treatment works (WTWs) can remove large quantities of this organic matter, and can therefore play a unique modifying role in DOC processing and associated greenhouse gas (GHG)(More)
Peatlands export significant amounts of dissolved organic carbon (DOC) to freshwaters, but the quantity of DOC reaching marine environments is typically less than the input to the fluvial system due to processing within the water column. Key removal processes include photo-chemical degradation, and heterotrophic bacterial respiration. In this study we(More)
Plants are known to influence peatland carbon fluxes both i) directly through respiration and ii) by the production of litter and root exudates, which are then broken down by microbes within the peat matrix. In this study we investigated whether three different plant species typical of a UK blanket bog complex - Calluna vulgaris, Juncus effusus and mixed(More)
RESEARCH INTERESTS Numerical modeling of fluid flows, mathematical biology, modeling of wave propagation problems PUBLICATIONS 1. " Parallel computational model of HIV infection " under review Letters in Biomathematics 2. A. Khapalov and S. Lapin " Dynamic discrete models for the granular matter formation process " under review IMA Journal of Applied(More)