J
J. Iwan Jones
Researcher at Queen Mary University of London
Publications - 55
Citations - 4996
J. Iwan Jones is an academic researcher from Queen Mary University of London. The author has contributed to research in topics: Trophic level & Periphyton. The author has an hindex of 27, co-authored 49 publications receiving 4341 citations. Previous affiliations of J. Iwan Jones include University of Liverpool & Natural Environment Research Council.
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Book ChapterDOI
Seeing Double: Size-Based and Taxonomic Views of Food Web Structure
David Gilljam,Aaron Thierry,Aaron Thierry,Francois Edwards,David J. Figueroa,David J. Figueroa,Anton T. Ibbotson,J. Iwan Jones,J. Iwan Jones,Rasmus B. Lauridsen,Owen L. Petchey,Guy Woodward,Bo Ebenman +12 more
TL;DR: Investigating patterns in the size structure of one marine and six freshwater food webs finds that the slope of prey body mass as a function of predator body mass was consistently underestimated and the slopes of predator–prey body mass ratio (PPMR) was overestimated when species averages were used instead of the individual-level data.
Journal ArticleDOI
Warming increases the proportion of primary production emitted as methane from freshwater mesocosms
Gabriel Yvon-Durocher,José M. Montoya,José M. Montoya,Guy Woodward,J. Iwan Jones,Mark Trimmer +5 more
TL;DR: In this paper, the authors investigated whether warming altered the balance of CH(4) efflux relative to gross primary production (GPP) and ecosystem respiration (ER) in a freshwater mesocosm experiment.
Journal ArticleDOI
TBT causes regime shift in shallow lakes.
Carl D. Sayer,Daniel J. Hoare,Gavin Simpson,and Andrew C. G. Henderson,Eleanor R. Liptrot,Michael J. Jackson,Peter G. Appleby,John Boyle,J. Iwan Jones,M. J. Waldock +9 more
TL;DR: It is hypothesized that TBT, through reducing populations of grazing organisms in lakes already affected by eutrophication, promoted the replacement of macrophytes by phytoplankton, ultimately leading to a regime shift in the ecosystem.
Journal ArticleDOI
Back to the future: using palaeolimnology to infer long-term changes in shallow lake food webs
R Rawcliffe,R Rawcliffe,Carl D. Sayer,Guy Woodward,Jonathan Grey,Thomas Davidson,J. Iwan Jones +6 more
TL;DR: In this article, the authors used stable isotope derived measures of trophic interactions and niche space for the extant communities of two shallow U.K. lakes from different positions along a gradient of eutrophication.
Journal ArticleDOI
The influence of periphyton on boundary layer conditions: a pH microelectrode investigation
TL;DR: In this article, the effect of periphyton on pH, CO2, and thickness of the boundary layer surrounding artificial plants was investigated using a microelectrode with probes 5μm tip diameter and with a sensitivity of 0.01 pH.