Dr James Ryalls

Email:
j.ryalls@reading.ac.uk
Phone:
+44 (0) 118 378 8578
Job title:
Research Fellow

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.

Research projects

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).

Centre for Agri-Environmental Research

Background

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

Publications

Ryalls, J. ORCID: 0000-0003-2015-3605 , Bromfield, L. , Bell, L. ORCID: 0000-0003-2895-2030 , Jasper, J. , Mullinger, N. , Blande, J. , Girling, R. ORCID: 0000-0001-8816-8075 (2022) Concurrent anthropogenic air pollutants enhance recruitment of a specialist parasitoid. Proceedings of the Royal Society B-Biological Sciences ISSN: 1471-2954
Ryalls, J. ORCID: 0000-0003-2015-3605 , Staton, T. ORCID: 0000-0003-0597-0121 , Mullinger, N. , Bromfield, L. , Langford, B. , Pfrang, C. , Nemitz, E. , Blande, J. , Girling, R. ORCID: 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 ISSN: 2296-701X | doi: https://dx.doi.org/10.3389/fevo.2022.833088
Ryalls, J. ORCID: 0000-0003-2015-3605 , Langford, B. , Mullinger, N. , Bromfield, L. , Nemitz, E. , Pfrang, C. , Girling, R. ORCID: 0000-0001-8816-8075 (2022) Anthropogenic air pollutants reduce insect-mediated pollination services. Environmental Pollution , 297 ISSN: 0269-7491 | doi: https://dx.doi.org/10.1016/j.envpol.2022.118847

Johnson, S. ORCID: 0000-0002-8388-8345 , Hartley, S. , Ryalls, J. ORCID: 0000-0003-2015-3605 , Frew, A. ORCID: 0000-0001-9859-2419 , Hall, C. (2021) Targeted plant defense: silicon conserves hormonal defense signaling impacting chewing but not fluid‐feeding herbivores. Ecology , 102 (3). ISSN: 0012-9658 | doi: https://dx.doi.org/10.1002/ecy.3250

Johnson, S. , Ryalls, J. , Barton, C. , Tjoelker, M. , Wright, I. , Moore, B. , eds. (2019) Climate warming and plant biomechanical defences: silicon addition contributes to herbivore suppression in a pasture grass. In: Rasmann, S. , (eds.) Functional Ecology , 33 (4). pp. 587-596. ISSN: 0269-8463 | doi: https://dx.doi.org/10.1111/1365-2435.13295
Reitmayer, C. , Ryalls, J. , Farthing, E. , Jackson, C. , Girling, R. , Newman, T. (2019) Acute exposure to diesel exhaust induces central nervous system stress and altered learning and memory in honey bees. Scientific Reports , 9 ISSN: 2045-2322 | doi: https://dx.doi.org/10.1038/s41598-019-41876-w

Ryalls, J. , Moore, B. , Johnson, S. (2018) Silicon uptake by a pasture grass experiencing simulated grazing is greatest under elevated precipitation. BMC Ecology , 18 ISSN: 1472-6785 | doi: https://dx.doi.org/10.1186/s12898-018-0208-6
Johnson, S. , Crotty, F. , Ryalls, J. , Murray, P. (2018) Belowground experimental approaches for exploring aboveground–belowground patterns. Aboveground–Belowground Community Ecology. , 234. Springer pp. 19-46. ISSN: 0070-8356 ISBN: 9783319916132 | doi: https://dx.doi.org/10.1007/978-3-319-91614-9_2
Johnson, S. , Glauser, G. , Hiltpold, I. , Moore, B. , Ryalls, J. (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://dx.doi.org/10.1111/een.12527
Johnson, S. , Ryalls, J. , Gherlenda, A. , Frew, A. , Hartley, S. (2018) Benefits from below: silicon supplementation maintains legume productivity under predicted climate change scenarios. Frontiers in Plant Science , 9 ISSN: 1664-462X | doi: https://dx.doi.org/10.3389/fpls.2018.00202
Johnson, S. , Lopaticki, G. , Aslam, T. , Barnett, K. , Frew, A. , Hartley, S. , Hiltpold, I. , Nielsen, U. , Ryalls, J. (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://dx.doi.org/10.1111/aab.12419
Kremer, J. , Nooten, S. , Cook, J. , Ryalls, J. , Barton, C. , Johnson, S. , eds. (2018) Elevated atmospheric carbon dioxide concentrations promote ant tending of aphids. In: Thébault, E. , (eds.) Journal of Animal Ecology , 87 (5). pp. 1475-1483. ISSN: 0021-8790 | doi: https://dx.doi.org/10.1111/1365-2656.12842
Ryalls, J. , Moore, B. , Johnson, S. , Connor, M. , 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://dx.doi.org/10.1007/s11104-018-3650-5

Ryalls, J. and Harrington, R. (2017) Climate and atmospheric change impacts on aphids as vectors of plant diseases. In: Johnson, S. and Jones, T. , (eds.) Global Climate Change and Terrestrial Invertebrates. John Wiley & Sons, Ltd , Chichester. pp. 148-175. | doi: https://dx.doi.org/10.1002/9781119070894.ch9
Johnson, S. , Ryalls, J. , Staley, J. (2017) Impacts of atmospheric and precipitation change on aboveground-belowground invertebrate interactions. In: Johnson, S. and Jones, T. , (eds.) Global Climate Change and Terrestrial Invertebrates. John Wiley & Sons, Ltd , Chichester. pp. 229-251. | doi: https://dx.doi.org/10.1002/9781119070894.ch12
Johnson, S. , Hartley, S. , Ryalls, J. , Frew, A. , DeGabriel, J. , Duncan, M. , Gherlenda, A. , eds. (2017) Silicon-induced root nodulation and synthesis of essential amino acids in a legume is associated with higher herbivore abundance. In: Biere, A. , (eds.) Functional Ecology , 31 (10). pp. 1903-1909. ISSN: 0269-8463 | doi: https://dx.doi.org/10.1111/1365-2435.12893
Ryalls, J. , Moore, B. , Riegler, M. , Bromfield, L. , Hall, A. , Johnson, S. , eds. (2017) Climate and atmospheric change impacts on sap-feeding herbivores: a mechanistic explanation based on functional groups of primary metabolites. In: Raubenheimer, D. , (eds.) Functional Ecology , 31 pp. 161-171. ISSN: 0269-8463 | doi: https://dx.doi.org/10.1111/1365-2435.12715
Ryalls, J. , Hartley, S. , Johnson, S. (2017) Impacts of silicon-based grass defences across trophic levels under both current and future atmospheric CO2 scenarios. Biology Letters , 13 (3). pp. 20160912. ISSN: 1744-957X | doi: https://dx.doi.org/10.1098/rsbl.2016.0912

Ryalls, J. , Moore, B. , Riegler, M. , Johnson, S. (2016) Above–belowground herbivore interactions in mixed plant communities are influenced by altered precipitation patterns. Frontiers in Plant Science , 7 ISSN: 1664-462X | doi: https://dx.doi.org/10.3389/fpls.2016.00345
Johnson, S. , Gherlenda, A. , Frew, A. , Ryalls, J. (2016) The importance of testing multiple environmental factors in legume–insect research: replication, reviewers, and rebuttal. Frontiers in Plant Science , 7 ISSN: 1664-462X | doi: https://dx.doi.org/10.3389/fpls.2016.00489

Ryalls, J. , Moore, B. , Riegler, M. , Gherlenda, A. , Johnson, S. (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://dx.doi.org/10.1093/jxb/eru439

Johnson, S. , Ryalls, J. , Karley, A. (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://dx.doi.org/10.1111/aab.12115

Ryalls, J. , Riegler, M. , Moore, B. , Lopaticki, G. , Johnson, S. (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 ISSN: 1664-462X | doi: https://dx.doi.org/10.3389/fpls.2013.00445
Ryalls, J. , Riegler, M. , Moore, B. , Johnson, S. (2013) Biology and trophic interactions of lucerne aphids. Agricultural and Forest Entomology , 15 (4). pp. 335-350. ISSN: 1461-9555 | doi: https://dx.doi.org/10.1111/afe.12024

Dr James Ryalls

Areas of interest

Research projects

Current Projects:

Previous Projects:

Background

Career:

Publications

2022

2021

2019

2018

2017

2016

2015

2014

2013