Staff Profile:Dr James Ryalls
- Name:
- Dr James Ryalls
- Job Title:
- Research Fellow
- Responsibilities:
- Areas of Interest:
- Understanding the mechanisms driving invertebrate responses to changes in climate and atmospheric conditions
- Chemical ecology of plant-insect interactions
- Insect orientation behaviour and pollination ecology
- Air pollution impacts on the volatile compounds used by insects for communication
- Aboveground-belowground interactions between plants and insects
Current Projects:
The Leverhulme Trust Early Career Fellowship - The little things that run a polluted world: investigating the combined effects of diesel exhaust and ozone pollution on aboveground-belowground insect interactions (SAPD, University of Reading, 2021-2024).
Previous Projects:
- NERC Capital Call and UoR RETF Open Fund (postdoc) - Free Air Diesel and Ozone Enrichment (FADOE) platform construction (SAPD, University of Reading, 2019-2020).
- EIT Food (postdoc) - CleanFruit: Standardisation of innovative pest control strategies to produce zero-residue fruit (SAPD, University of Reading, 2019-2020).
- British Ecological Society Large Research Grant (awardee) - Does air pollution inhibit the recruitment of plant bodyguards? (SAPD, University of Reading, 2018-2020).
- NERC New Investigator Project (postdoc) - DOMINO: Degradation of Odour Signals by air pollution: chemical Mechanisms, plume dynamics and INsect Orientation behaviour (SAPD, University of Reading, 2018-2020).
- Australian Research Council (postdoc) - Get tough, get toxic or get a bodyguard - exploring the mechanisms of aboveground-belowground herbivory in grasses (Hawkesbury Institute for the Environment, Western Sydney University, 2016-2017).
- BES Small Research Project (awardee) - Silicon-based grass defences extend up the food chain (Hawkesbury Institute for the Environment, Western Sydney University, 2016).
- Research groups / Centres:
- Publications:
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YNumber of items: 23.
2022
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Ryalls, J.
ORCID: https://orcid.org/0000-0003-2015-3605, Langford, B., Mullinger, N., Bromfield, L., Nemitz, E., Pfrang, C. and Girling, R.
ORCID: https://orcid.org/0000-0001-8816-8075 (2022) Anthropogenic air pollutants reduce insect-mediated pollination services. Environmental Pollution, 297. 118847. ISSN 0269-7491 doi: https://doi.org/10.1016/j.envpol.2022.118847
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Ryalls, J. M. W.
ORCID: https://orcid.org/0000-0003-2015-3605, Staton, T., Mullinger, N. J., Bromfield, L. M., Langford, B., Pfrang, C., Nemitz, E., Blande, J. D. and Girling, R. D.
ORCID: https://orcid.org/0000-0001-8816-8075 (2022) Ozone mitigates the adverse effects of diesel exhaust pollutants on ground-active invertebrates in wheat. Frontiers in ecology and evolution, 10. 833088. ISSN 2296-701X doi: https://doi.org/10.3389/fevo.2022.833088
2021
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Johnson, S. N.
ORCID: https://orcid.org/0000-0002-8388-8345, Hartley, S. E., Ryalls, J. M. W.
ORCID: https://orcid.org/0000-0003-2015-3605, Frew, A.
ORCID: https://orcid.org/0000-0001-9859-2419 and Hall, C. R. (2021) Targeted plant defense: silicon conserves hormonal defense signaling impacting chewing but not fluid‐feeding herbivores. Ecology, 102 (3). e03250. ISSN 0012-9658 doi: https://doi.org/10.1002/ecy.3250
2019
- Johnson, S. N., Ryalls, J. M. W., Barton, C. V. M., Tjoelker, M. G., Wright, I. J. and Moore, B. D. (2019) Climate warming and plant biomechanical defences: silicon addition contributes to herbivore suppression in a pasture grass. Functional Ecology, 33 (4). pp. 587-596. ISSN 0269-8463 doi: https://doi.org/10.1111/1365-2435.13295
- Reitmayer, C. M., Ryalls, J. M. W., Farthing, E., Jackson, C. W., Girling, R. D. and Newman, T. A. (2019) Acute exposure to diesel exhaust induces central nervous system stress and altered learning and memory in honey bees. Scientific Reports, 9. 5793. ISSN 2045-2322 doi: https://doi.org/10.1038/s41598-019-41876-w
2018
- Kremer, J. M. M., Nooten, S. S., Cook, J. M., Ryalls, J. M. W., Barton, C. V. M. and Johnson, S. N. (2018) Elevated atmospheric carbon dioxide concentrations promote ant tending of aphids. Journal of Animal Ecology, 87 (5). pp. 1475-1483. ISSN 0021-8790 doi: https://doi.org/10.1111/1365-2656.12842
- Johnson, S. N., Glauser, G., Hiltpold, I., Moore, B. D. and Ryalls, J. M. W. (2018) Root herbivore performance suppressed when feeding on a jasmonate-induced pasture grass. Ecological Entomology, 43 (4). pp. 547-550. ISSN 0307-6946 doi: https://doi.org/10.1111/een.12527
- Ryalls, J. M. W., Moore, B. D., Johnson, S. N., Connor, M. and Hiltpold, I. (2018) Root responses to domestication, precipitation and silicification: weeping meadow grass simplifies and alters toughness. Plant and Soil, 427 (1-2). pp. 291-304. ISSN 0032-079X doi: https://doi.org/10.1007/s11104-018-3650-5
- Johnson, S. N., Lopaticki, G., Aslam, T. J., Barnett, K., Frew, A., Hartley, S. E., Hiltpold, I., Nielsen, U. N. and Ryalls, J. M. W. (2018) Dryland management regimes alter forest habitats and understory arthropod communities. Annals of Applied Biology, 172 (3). pp. 282-294. ISSN 0003-4746 doi: https://doi.org/10.1111/aab.12419
- Johnson, S. N., Ryalls, J. M. W., Gherlenda, A. N., Frew, A. and Hartley, S. E. (2018) Benefits from below: silicon supplementation maintains legume productivity under predicted climate change scenarios. Frontiers in Plant Science, 9. 202. ISSN 1664-462X doi: https://doi.org/10.3389/fpls.2018.00202
- Johnson, S. N., Crotty, F. V., Ryalls, J. M. W. and Murray, P. J. (2018) Belowground experimental approaches for exploring aboveground–belowground patterns. In: Aboveground–Belowground Community Ecology. Springer, pp. 19-46. ISBN 9783319916132 doi: https://doi.org/10.1007/978-3-319-91614-9_2
- Ryalls, J. M. W., Moore, B. D. and Johnson, S. N. (2018) Silicon uptake by a pasture grass experiencing simulated grazing is greatest under elevated precipitation. BMC Ecology, 18. 53. ISSN 1472-6785 doi: https://doi.org/10.1186/s12898-018-0208-6
2017
- Johnson, S. N., Hartley, S. E., Ryalls, J. M. W., Frew, A., DeGabriel, J. L., Duncan, M. and Gherlenda, A. N. (2017) Silicon-induced root nodulation and synthesis of essential amino acids in a legume is associated with higher herbivore abundance. Functional Ecology, 31 (10). pp. 1903-1909. ISSN 0269-8463 doi: https://doi.org/10.1111/1365-2435.12893
- Ryalls, J. M. W., Hartley, S. E. and Johnson, S. N. (2017) Impacts of silicon-based grass defences across trophic levels under both current and future atmospheric CO2 scenarios. Biology Letters, 13 (3). p. 20160912. ISSN 1744-957X doi: https://doi.org/10.1098/rsbl.2016.0912
- Johnson, S. N., Ryalls, J. M. W. and Staley, J. T. (2017) Impacts of atmospheric and precipitation change on aboveground-belowground invertebrate interactions. In: Johnson, S. N. and Jones, T. H. (eds.) Global Climate Change and Terrestrial Invertebrates. John Wiley & Sons, Ltd, Chichester, pp. 229-251. doi: https://doi.org/10.1002/9781119070894.ch12
- Ryalls, J. M. W., Moore, B. D., Riegler, M., Bromfield, L. M., Hall, A. A. G. and Johnson, S. N. (2017) Climate and atmospheric change impacts on sap-feeding herbivores: a mechanistic explanation based on functional groups of primary metabolites. Functional Ecology, 31. pp. 161-171. ISSN 0269-8463 doi: https://doi.org/10.1111/1365-2435.12715
- Ryalls, J. M. W. and Harrington, R. (2017) Climate and atmospheric change impacts on aphids as vectors of plant diseases. In: Johnson, S. N. and Jones, T. H. (eds.) Global Climate Change and Terrestrial Invertebrates. John Wiley & Sons, Ltd, Chichester, pp. 148-175. doi: https://doi.org/10.1002/9781119070894.ch9
2016
- Ryalls, J. M. W., Moore, B. D., Riegler, M. and Johnson, S. N. (2016) Above–belowground herbivore interactions in mixed plant communities are influenced by altered precipitation patterns. Frontiers in Plant Science, 7. 345. ISSN 1664-462X doi: https://doi.org/10.3389/fpls.2016.00345
- Johnson, S. N., Gherlenda, A. N., Frew, A. and Ryalls, J. M. W. (2016) The importance of testing multiple environmental factors in legume–insect research: replication, reviewers, and rebuttal. Frontiers in Plant Science, 7. 489. ISSN 1664-462X doi: https://doi.org/10.3389/fpls.2016.00489
2015
- Ryalls, J. M. W., Moore, B. D., Riegler, M., Gherlenda, A. N. and Johnson, S. N. (2015) Amino acid-mediated impacts of elevated carbon dioxide and simulated root herbivory on aphids are neutralized by increased air temperatures. Journal of Experimental Botany, 66 (2). pp. 613-623. ISSN 0022-0957 doi: https://doi.org/10.1093/jxb/eru439
2014
- Johnson, S. N., Ryalls, J. M. W. and Karley, A. J. (2014) Global climate change and crop resistance to aphids: contrasting responses of lucerne genotypes to elevated atmospheric carbon dioxide. Annals of Applied Biology, 165 (1). pp. 62-72. ISSN 0003-4746 doi: https://doi.org/10.1111/aab.12115
2013
- Ryalls, J. M. W., Riegler, M., Moore, B. D., Lopaticki, G. and Johnson, S. N. (2013) Effects of elevated temperature and CO2 on aboveground-belowground systems: a case study with plants, their mutualistic bacteria and root/shoot herbivores. Frontiers in Plant Science, 4. 445. ISSN 1664-462X doi: https://doi.org/10.3389/fpls.2013.00445
- Ryalls, J. M. W., Riegler, M., Moore, B. D. and Johnson, S. N. (2013) Biology and trophic interactions of lucerne aphids. Agricultural and Forest Entomology, 15 (4). pp. 335-350. ISSN 1461-9555 doi: https://doi.org/10.1111/afe.12024
Career:
- 2021-date Research Fellow, SAPD, University of Reading, UK
- 2018-2020 Postdoctoral Researcher, SAPD, University of Reading, UK
- 2016-2017 Postdoctoral Researcher, Hawkesbury Institute for the Environment, Western Sydney University, Australia
- 2012-2016 PhD Student, Hawkesbury Institute for the Environment, Western Sydney University
- 2010-2011 Masters of Research (MRes), Cardiff University, Wales
- 2006-2010 BSc (Hons) Zoology (incl. Professional Training Year with The Dodwell Trust/Association Mitsinjo, Madagascar), Cardiff University, Wales
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Ryalls, J.