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Here are the group's papers. They are all linked to the relevant journal sites, but please send an email if you can't get access;  we'll forward the PDF.

Hope you find what you're looking for.




Johnson, S. N., C. V. M. Barton, F. N. Biru, T. Islam, W. J. Mace, R. C. Rowe, and X. Cibils–Stewart. (2023). Elevated atmospheric CO2 suppresses silicon accumulation and exacerbates endophyte reductions in plant phosphorus. Functional Ecology, Online early, DOI: 10.1111/1365-2435.14342.


Johnson, S. N., R. K. Vandegeer, J. O. Borevitz, S. E. Hartley, D. T. Tissue, and C. R. Hall. (2023). Climatic drivers of silicon accumulation in a model grass operate in low- but not high-silicon soils. Plants. 12: 995.

Islam, T., Moore, B.D. & Johnson, S.N. (2023). Silicon fertilisation affects morphological and immune defences of an insect pest and enhances plant compensatory growth. Journal of Pest Science. 96, 41-53.

  2022     return to top 

de Tombeur, F., J. A. Raven, A. Toussaint, H. Lambers, J. Cooke, S. E. Hartley, S.N. Johnson, S. Coq, O. Katz, J. Schaller, and C. Violle. (2022). Why do plants silicify? Trends in Ecology & Evolution: 38, 275-288.


Johnson, S. N., Chen, Z.-H., Rowe, R. C., & Tissue, D. T. (2022). Field application of silicon alleviates drought stress and improves water use efficiency in wheat. Frontiers in Plant Science, 13, 1030620.


Putra, R., Waterman, J.M. Mathesius, U. Wojtalewicz, D.  Powell, J.R.  Hartley, S.E. and Johnson, S.N. (2022) Benefits of silicon‑enhanced root nodulation in a model legume are contingent upon rhizobial efficacy. Plant and Soil: 477, 201-217.


Islam, T., Moore, B. D. and Johnson, S. N. Plant silicon defences reduce the performance of a chewing insect herbivore which benefits a contemporaneous sap-feeding insect. Ecological Entomology, 47, 951-958.


Johnson, S. N., Cibils-Stewart, X. Waterman, J.M. Biru, F.N. Rowe, R.C. and Hartley, S.E. (2022) Elevated atmospheric CO2 changes plant defence allocation but resistance to herbivores persists. Proceedings of the Royal Society B-Biological Sciences 289:20212536.


Johnson, S.N., Powell, J. R., Frew A. and Cibils-Stewart, X. (2022) Silicon accumulation suppresses arbuscular mycorrhizal fungal colonisation in the model grass Brachypodium distachyon. Plant and Soil, 477, 219-232.


Biru, F.N., Cazzonelli, C.I. Elbaum, R. and Johnson, S.N.  (2022). Contrasting impacts of herbivore-induction and elevated atmospheric CO2 on silicon defences and consequences for subsequent herbivores. Entomologia Experimentalis et Applicata, 170, 681-688.


Wade, R.N., Donaldson, S.M. Karley, A.J. Johnson, S.N. and Hartley, S.E. (2022) Uptake of silicon in barley under contrasting drought regimes. Plant and Soil. 477, 69-81.


Brenya, E., M. Pervin, Z.-H. Chen, D. T. Tissue, S.N. Johnson, J. Braam, and C. I. Cazzonelli. (2022). Mechanical stress acclimation in plants: Linking hormones and somatic memory to thigmomorphogenesis. Plant, Cell & Environment 45, 989-1010.

Islam, T., Moore, B.D. & Johnson, S.N. (2022). Silicon suppresses a ubiquitous mite herbivore and promotes natural enemy attraction by altering plant volatile blends. Journal of Pest Science. 95, 423-434.

Cibils-Stewart, X., Mace, W.J., Popay, A.J., Lattanzi, F.A., Hartley, S.E., Hall, C.R., Powell, J.R. & Johnson, S.N. (2022). Interactions between silicon and alkaloid defences in endophyte‐infected grasses and the consequences for a folivore. Functional Ecology: 36, 249-261.

  2021     return to top 

Johnson, S.N., Hartley, S.E., Ryalls, J.M.W., Frew, A., & Hall, C.R. (2021) Targeted plant defense: silicon conserves hormonal defense signaling impacting chewing but not fluid-feeding herbivores. Ecology, 102, e03438.

Frew, A., Antunes, P.M. Cameron, D.D. Hartley,S.E.  S. N. Johnson, Rillig, M.C. & Bennett A.E. (2021). Plant herbivore protection by arbuscular mycorrhizas: a role for fungal diversity? New Phytologist, 233, 1022-1031.


Johnson, S.N., Waterman J.M., Wuhrer, R.,  Rowe, R.C., Hall, C.R. & X. Cibils-Stewart. (2021). Siliceous and non-nutritious: nitrogen limitation increases anti-herbivore silicon defences in a model grass. Journal of Ecology, 109, 3767-3778.


Putra, R., Vandegeer, R.K., Karan, S., Powell, J.R., Hartley, S.E. & Johnson, S.N. (2021). Silicon enrichment alters functional traits in legumes depending on plant genotype and symbiosis with nitrogen-fixing bacteria. Functional Ecology: 35, 2856-2869.


Biru, F.N., Cazzonelli, C.I. Elbaum, R. & Johnson, S. N. (2021). Anti-herbivore silicon defences in a model grass are greatest under Miocene levels of atmospheric CO2. Global Change Biology. 27, 2959-2969.


Hall, C.R., Rowe, R.C., Mikhael, M., Read, E., Hartley, S.E., Johnson, S.N., (2021). Plant silicon application alters leaf alkaloid concentrations and impacts parasitoids more adversely than their aphid hosts. Oecologia. 196, 145-154.


Barnett, K.L., Johnson, S.N., Facey, S.L. Gibson-Forty, E.V.J.  Ochoa-Hueso, R. & Power S.A. (2021) Altered precipitation and root herbivory affect the productivity and composition of a mesic grassland. BMC Ecology and Evolution. 21, 145.


Vandegeer, R.K., Cibils-Stewart, X. , Wuhrer, R.  Hartley, S.E., Tissue, D.T. & Johnson S.N. (2021) Leaf silicification provides herbivore defence regardless of the extensive impacts of water stress. Functional Ecology. 35, 1200-1211.


Waterman, J.M., Cibils-Stewart, X., Cazzonelli, C.I. Hartley, S.E. & Johnson, S.N. (2021) Short-term exposure to silicon enhances plant resistance to herbivory. Ecology 102:e03438.

  2020     return to top 

Frew, A., Powell, J.R., & Johnson, S.N. (2020) Aboveground resource allocation in response to root herbivory is enhanced by the arbuscular mycorrhizal symbiosis. Plant and Soil, 447, 463-473.


Hall, C.R., Dagg, V., Waterman, J.M., & Johnson, S.N. (2020) Silicon alters leaf surface morphology and suppresses insect herbivory in a model grass species. Plants, 9, 643.

Hall, C.R., Mikhael, M., Hartley, S.E., & Johnson, S.N. (2020) Elevated atmospheric CO2 suppresses jasmonate and silicon-based defences without affecting herbivores. Functional Ecology, 34, 993-1002.


Hiltpold, I., Moore, B.D., & Johnson, S.N. (2020) Elevated atmospheric carbon dioxide increases root architectural complexity and reduces the efficacy of entomopathogenic nematodes. Plant and Soil, 447, 29-38.


Islam, T., Moore, B.D., & Johnson, S.N. (2020) Novel evidence for systemic induction of silicon defences in cucumber following attack by a global insect herbivore. Ecological Entomology, Online early:


Jiang, M.K., Medlyn, B.E., …….. Johnson, S.N…… & Ellsworth, D.S. (2020) The fate of carbon in a mature forest under carbon dioxide enrichment. Nature, 580, 227-231.


Johnson, S.N., Rowe, R.C., & Hall, C.R. (2020) Aphid feeding induces phytohormonal cross-talk without affecting silicon defense against subsequent chewing herbivores. Plants, 9, 1009.


Johnson, S.N., Rowe, R.C., & Hall, C.R. (2020) Silicon is an inducible and effective herbivore defence against Helicoverpa punctigera (Lepidoptera: Noctuidae) in soybean. Bulletin of Entomological Research, 110, 417-422.


Johnson, S.N., Waterman, J.M., & Hall, C.R. (2020) Increased insect herbivore performance under elevated CO2 is associated with lower plant defence signalling and minimal declines in nutritional quality. Scientific Reports, 10, 14553.


Putra, R., Powell, J.R., Hartley, S.E., & Johnson, S.N. (2020) Is it time to include legumes in plant silicon research? Functional Ecology, 34, 1142-1157.


Rowe, R.C., Trębicki, P., Gherlenda, A., & Johnson, S.N. (2020) Cereal aphid performance and feeding behaviour largely unaffected by silicon enrichment of host plants. Journal of Pest Science, 93, 41-48.


Vandegeer, R.K., Tissue, D.T., Hartley, S.E., Glauser, G., & Johnson, S.N. (2020) Physiological acclimation of a grass species occurs during sustained but not repeated drought events. Environmental and Experimental Botany, 171, 103954.


Vandegeer, R.K., Zhao, C., Cibils-Stewart, X., Wuhrer, R., Hall, C.R., Hartley, S.E., Tissue, D.T., & Johnson, S.N. (2020) Silicon deposition on guard cells increases stomatal sensitivity as mediated by K+ efflux and consequently reduces stomatal conductance. Physiologia Plantarum, In Press, Accepted.


Waterman, J.M., Mann, T.J., Cazzonelli, C.I., Hartley, S.E., & Johnson, S.N. (2020) Microbes in Helicoverpa armigera oral secretions contribute to increased senescence around plant wounds. Ecological Entomology, 45, 1224-1229.

  2019     return to top 

Johnson, S.N., Ryalls, J.M.W., Barton, C.V.M., Tjoelker, M.G., Wright, I.J., & Moore, B.D. (2019) Climate warming and plant biomechanical defences: silicon addition contributes to herbivore suppression in a pasture grass. Functional Ecology, 587-596.

Waterman, J.M., Cazzonelli, C.I., Hartley, S.E., & Johnson, S.N. (2019) Simulated herbivory: The key to disentangling plant defence responses. Trends in Ecology & Evolution, 34, 447-458.


Hall, A.A.G., Johnson, S.N., Cook, J.M., & Riegler, M. (2019) High larval host density and mortality negatively impact parasitoid complex during an insect herbivore outbreak. Insect Science, 26, 351-365.


Hall, C.R., Waterman, J.M., Vandegeer, R.K., Hartley, S.E., & Johnson, S.N. (2019) The role of silicon in phytohormonal signalling. Frontiers in Plant Science, 10, 1132.


Johnson, S.N., Reynolds, O.L., Gurr, G.M., Esveld, J.L., Moore, B.D., Tory, G.J., & Gherlenda, A.N. (2019) When resistance is futile, tolerate instead: silicon promotes plant compensatory growth when attacked by above- and belowground herbivores. Biology Letters, 15, 20190361.

  2018     return to top 

Barnett, K.L., Johnson, S.N. & Power, S.A. (2018) Drought negates growth stimulation due to root herbivory in pasture grasses. Oecologia, 188, 777-789.

Frew, A., Powell, J.R., Glauser, G., Bennett, A.E. & Johnson, S.N. (2018) Mycorrhizal fungi enhance nutrient uptake but disarm defences in plant roots, promoting plant-parasitic nematode populations. Soil Biology and Biochemistry, 126, 123-132.


Johnson, S.N., Glauser, G., Hiltpold, I., Moore, B.D. & Ryalls, J.M.W. (2018) Root herbivore performance suppressed when feeding on a jasmonate-induced pasture grass. Ecological Entomology, 43, 547-550.


Johnson, S.N. & Hartley, S.E. (2018) Elevated carbon dioxide and warming impact silicon and phenolic-based defences differently in native and exotic grasses. Global Change Biology, 24, 3886-3896.


Johnson, S.N., Lopaticki, G., Aslam, T., Barnett, K., Frew, A., Hartley, S.E., . . . Ryalls, J. (2018) Dryland management regimes alter forest habitats and understory arthropod communities. Annals of Applied Biology, 172, 282-294.


Johnson, S.N., Ryalls, J.M.W., Gherlenda, A., Frew, A. & Hartley, S.E. (2018) Benefits from below: silicon supplementation maintains legume productivity under predicted climate change scenarios. Frontiers in Plant Science, 9, 202.


Johnson, S.N. & Züst, T. (2018) Climate change and insect pests: resistance is not futile? Trends in Plant Science, 23, 367-369.


Kremer, J.M.M., Nooten, S.S., Cook, J., Ryalls, J.M.W., Barton, C.V.M. & Johnson, S.N. (2018) Elevated atmospheric carbon dioxide concentrations promote ant tending of aphids. Journal of Animal Ecology, 87, 1475-1483.


Ryalls, J.M.W., Moore, B.D. & Johnson, S.N. (2018) Silicon uptake by a pasture grass experiencing simulated grazing is greatest under elevated precipitation. BMC Ecology, 18, 53.


Ryalls, J.M.W., Moore, B.D., Johnson, S.N., Conner, M. & Hiltpold, I. (2018) Root responses to domestication, precipitation and silicification: weeping meadow grass simplifies and alters toughness. Plant and Soil, 427, 291-304.

  2017     return to top 

Frew, A., Powell, J.R., Allsopp, P.G., Sallam, N. & Johnson, S.N. (2017) Arbuscular mycorrhizal fungi promote silicon accumulation in plant roots, reducing the impacts of root herbivory. Plant and Soil, 419, 423-433.


Hall, A.A.G., Johnson, S.N., Cook, J.M. & Riegler, M. (2017) High larval host density and mortality negatively impact parasitoid complex during an insect herbivore outbreak. Insect Science, Online early: 10.1111/1744-7917.12532.

Frew, A., Powell, J. R., Allsopp, P. G. Nader, S. and Johnson S. N. (2017). Host plant colonisation by arbuscular mycorrhizal fungi stimulates immune function whereas high root silicon concentrations diminish growth in a soil-dwelling herbivore. Soil Biology & Biochemistry. 112, 117-126.

Hall, A. A. G., Steinbauer, M. J. Taylor, G. S., Johnson, S.N. Cook, J.C. and Reigler, M. (2017). Unravelling mummies: cryptic diversity, host specificity, trophic and coevolutionary interactions in psyllid – parasitoid food webs. BMC Ecology. 17, 127.

Johnson S.N., Hartley S.E., Ryalls J.M.W., Frew A., DeGabriel J.L., Duncan M., Gherlenda A. (2017) Silicon-induced root nodulation and synthesis of essential amino acids in a legume is associated with higher herbivore abundance. Functional Ecology, 31, 1903-1909.

Ryalls, J.M.W., Moore, B.D., Rieger, M., Bromfield, L., Hall, A.G. & 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, 161-171.2435.12715.


Johnson, S.N., Karley, A.J., Gregory, P.J. & Brennan, R.M. (2017) Editorial - Crop traits for defense against pests and disease: durability, breakdown and future prospects. Frontiers in Plant Science, 8, 209.


Ryalls, J.M.W., Hartley, S.E. & Johnson, S.N. (2017) Impacts of silicon-based grass defences across trophic levels under both current and future atmospheric CO2 scenarios. Biology Letters, 13, 20160912.


Wade, R.N., Karley, A.J., Johnson, S.N. & Hartley, S.E. (2017) Impact of predicted precipitation scenarios on multitrophic interactions. Functional Ecology, 13, 1647-1658.

Moore, B.D. & Johnson, S.N. (2017) Get tough, get toxic, or get a bodyguard: Identifying candidate traits conferring belowground resistance to herbivores in grasses. Frontiers in Plant Science, 7, 1925.

  2016     return to top 

Frew, A., Allsopp, P.G., Gherlenda, A. & Johnson, S.N. (2016) Increased herbivory under elevated atmospheric carbon dioxide concentrations is reversed by silicon-based plant defences. Journal of Applied Ecology, Online early, doi: 10.1111/1365-2664.12822

Facey, S.L., Fidler, D.B., Rowe, R.C., Bromfield, L.M., Nooten, S.S., Staley, J.T., Ellsworth, D.S. & Johnson, S.N. (2016) Atmospheric change causes declines in woodland arthropods and impacts specific trophic groups. Agricultural & Forest Entomology, Online early, doi: 10.1111/afe.12190.


Johnson, S.N., Lopaticki, G., Barnett, K., Facey, S.L., Powell, J.R. & Hartley, S.E. (2016) An insect ecosystem engineer alleviates drought stress in plants without increasing plant susceptibility to an aboveground herbivore. Functional Ecology, 30, 894-902.


Frew, A., Powell, J.R., Sallam, N., Allsopp, P.G. & Johnson, S.N. (2016) Trade-offs between silicon and phenolic defences may explain enhanced performance of root herbivores on phenolic-rich plants. Journal of Chemical Ecology, 42, 768-771.


Johnson, S.N., Benefer, C.M., Frew, A., Griffiths, B.S., Hartley, S.E., Karley, A.J., Rasmann, S., Schumann, M., Sonnemann, I. & Robert, C.A.M. (2016) New frontiers in belowground ecology for plant protection from root-feeding insects. Applied Soil Ecology, 108, 96-107.


Hiltpold, I., Moore, B.D. & Johnson, S.N. (2016) Novel in vitro procedures for rearing a root-feeding pest (Heteronychus arator) of grasslands. Frontiers in Plant Science, 7, 1316.


McKenzie, S.W., Johnson, S.N., Jones, T.H., Hails, R.S. & Vanbergen, A.J. (2016) Root herbivores drive changes to plant primary chemistry, but root loss is mitigated under elevated atmospheric CO2. Frontiers in Plant Science, 7, 837.


Power, S.A., Barnett, K.L., Ochoa-Huesco, R., Facey, S.L., Gibson-Forty, E., V-J, Hartley, S.E., Nielsen, U.N., Tissue, D.T. & Johnson, S.N. (2016) DRI-Grass: a new experimental platform for addressing grassland ecosystem responses to future precipitation scenarios in south-east Australia. Frontiers in Plant Science, 7, 1373.

Gherlenda, A., Haigh, A., Moore, B.D., Johnson, S.N. & Riegler, M. (2016) Insect herbivory in a mature Eucalyptus woodland depends on rainfall and leaf phenology but not CO2 enrichment. BMC Ecology, 16, 47


Gherlenda, A., Haigh, A.M., Moore, B.D., Johnson, S.N. & Riegler, M. (2016) Climate change, nutrition and immunity: Effects of elevated CO2 and temperature on the immune function of an insect herbivore. Journal of Insect Physiology, 85, 57-64.

Hourston, J., Bennett, A.E., Johnson, S.N. & Gange, A.C. (2016) Does the slow-growth, high-mortality hypothesis apply below ground? PloS One, 11 (8): e0161904


Hall, A.G., Morrow, J.L., Fromont, C., Steinbauer, M.J., Taylor, G.S., Johnson, S.N., Cook, J.M. & Reigler, M. (2016) Codivergence of the primary bacterial endosymbiont of psyllids versus host switches and replacement of their secondary bacterial endosymbionts. Environmental Microbiology, 18, 2591-2603.


Torode, M.D., Barnett, K.L., Facey, S.L., Nielsen, U., Power, S.A. & Johnson, S.N. (2016) Altered precipitation impacts on above- and belowground grassland invertebrates: summer drought leads to outbreaks in spring. Frontiers in Plant Science, 7, 1468.


Johnson, S.N., Erb, M. & Hartley, S.E. (2016) Roots under attack: contrasting plant responses to below- and aboveground insect herbivory. New Phytologist, 210, 413-418.


Johnson, S.N., Gherlenda, A.N., Frew, A. & 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.


Hentley, W.T., Vanbergen, A.J., Beckerman, A.P., Brien, M., Hails, R.S., Jones, T.H. & Johnson, S.N. (2016) Antagonistic interactions between an invasive alien and native coccinellid species may promote coexistence. Journal of Animal Ecology, 85, 1087-1097.


Frew, A., Barnett, K., Nielsen, U., Riegler, M. & Johnson, S.N. (2016) Belowground ecology of scarabs feeding on grass roots: current knowledge and future directions for management in Australasia. Frontiers in Plant Science, 7, 321.


Gherlenda, A., Haigh, A.M., Moore, B.D., Johnson, S.N. & Riegler, M. (2016) Climate change, nutrition and immunity: Effects of elevated CO2 and temperature on the immune function of an insect herbivore. Journal of Insect Physiology, 85, 57-64.


Ryalls, J.M.W., Moore, B.D., Riegler, M. & Johnson, S.N. (2016) Above–belowground herbivore interactions in mixed plant communities are influenced by altered precipitation patterns. Frontiers in Plant Science, 7, 345.

Gherlenda, A.N., Crous, K.Y., Moore, B.D., Haigh, A.M., Johnson, S.N. & Riegler, M. (2015) Precipitation, not CO2 enrichment, drives insect herbivore frass deposition and subsequent nutrient dynamics in a mature Eucalyptus woodland. Plant and Soil. 399, 29-39.

  2015     return to top 

Johnson, S.N. & Rasmann, S. (2015) Root-feeding insects and their interactions with organisms in the rhizosphere. Annual Review of Entomology, 60, 517–535.

Aslam, T.J., Benton, T.G., Nielsen, U.N. & Johnson, S.N. (2015) Impacts of eucalypt plantation management on soil faunal communities and nutrient bioavailability: trading ecosystem function for dependence? Biology and Fertility of Soils, 51, 637-644.

Gherlenda, A., Haigh, A.M., Moore, B.D., Johnson, S.N. & Riegler, M. (2015) Larval responses of a leaf beetle to elevated [CO2] and temperature depend on Eucalyptus species. Oecologia, 177: 607–617


Ryalls, J.M.W., Moore, B.D., Riegler, M., Gherlenda, A.N. & Johnson, S.N. (2015) Amino acid-mediated impacts of elevated carbon dioxide and simulated root herbivory on aphids are neutralised by increased air temperatures. Journal of Experimental Botany, 66, 613–623.


Hall, A., Gherlenda, A., Hasegawa, S., Johnson, S.N., Cook, J.C. & Riegler, M. (2015) Anatomy of an outbreak: the biology and population dynamics of a Cardiaspina psyllid species in an endangered woodland ecosystem. Agricultural and Forest Entomology, 17, 292-301.


Karley, A.J., Mitchell, C., Brookes, C., McNicol, J.W., O'Neill, T., Roberts, H., Graham, J. & Johnson, S.N. (2015) Exploiting physical defence traits for crop protection: leaf trichomes of Rubus idaeus have deterrent effects on spider mites but not aphids. Annals of Applied Biology, 168, 159-172.

  2014     return to top 

A'Bear, A.D., Johnson, S.N. & Jones, T.H. (2014) Putting the 'upstairs-downstairs' into ecosystem service: what can aboveground-belowground ecology tell us? Biological Control, 75, 97-107.

Hentley, W.T., Hails, R.S., Johnson, S.N., Jones, T.H. & Vanbergen, A.J. (2014) Top-down control by Harmonia axyridis mitigates the impact of elevated atmospheric CO2 on a plant-aphid interaction. Agricultural and Forest Entomology, 16, 350­–358.

Johnson, S.N. (2014) Global change and insects: which little things will be running the world in the future? Current Opinion in Insect Science, 5, 6–8


Hentley, W.T., Vanbergen, A.J., Hails, R.S., Jones, T.H. & Johnson, S.N. (2014) Elevated atmospheric CO2 impairs aphid escape responses to predators and conspecific alarm signals. Journal of Chemical Ecology, 40, 1110-1114


Facey, S.L., Ellsworth, D., Staley, J.T., Wright, D.J. & Johnson, S.N. (2014) Upsetting the order: how climate and atmospheric change affects predator-prey interactions. Current Opinion in Insect Science, 5, 66-74


Johnson, S.N., Lopaticki, G. & Hartley, S.E. (2014) Elevated atmospheric CO2 triggers compensatory feeding by root herbivores on a C3 but not a C4 grass. PloS one, 9, e90251.


Ode, P.J., Johnson, S.N. & Moore, B.D. (2014) Atmospheric change and induced plant secondary metabolites — are we reshaping the building blocks of multi-trophic interactions? Current Opinion in Insect Science, 5, 57-65


Johnson, S.N., Ryalls, J.M.W. & 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, 62-72.


Langford, E.A., Nielsen, U.N., Johnson, S.N. & Riegler, M. (2014) Susceptibility of Queensland fruit fly, Bactrocera tryoni (Froggatt) (Diptera: Tephritidae), to entomopathogenic nematodes. Biological Control, 69, 34-39.

  201    return to top 

Barnett, K. & Johnson, S.N. (2013) Living in the soil matrix: abiotic factors affecting root herbivores. Advances in Insect Physiology, 45, 1–52.


Bennett, A.E., Macrae, A.M., Moore, B.D., Caul, S. & Johnson, S.N. (2013) Early root herbivory impairs mycorrhizal fungi colonisation and induces defence allocation in mature Plantago lanceolata. PLoS One, 8, e66053.


Frew, A., Nielsen, U.N., Riegler, M. & Johnson, S.N. (2013) Do eucalypt plantation management practices create understory reservoirs of scarab beetle pests in the soil? Forest Ecology and Management, 306, 275–280.


Johnson, S.N., Mitchell, C., Thompson, J. & Karley, A.J. (2013) Downstairs drivers - root herbivores shape communities of aboveground herbivores and natural enemies via plant nutrients. Journal of Animal Ecology, 82, 1021–1030.


Johnson, S.N. & Riegler, M. (2013) Root damage by insects reverses the effects of elevated atmospheric CO2 on eucalypt seedlings. PloS ONE, 8, e79479.

McKenzie, S.W., Hentley, W.T., Hails, R.S., Jones, T.H., Vanbergen, A.J. & Johnson, S.N. (2013) Global climate change and aboveground-belowground insect interactions. Frontiers in Plant Science, 4, 1-6.


McKenzie, S.W., Vanbergen, A.J., Hails, R.S., Jones, T.H. & Johnson, S.N. (2013) Reciprocal feeding facilitation by above- and below-ground herbivores. Biology Letters, 9, 20130341.


Ryalls, J.M.W., Riegler, M., Moore, B.D. & Johnson, S.N. (2013) Biology and trophic interactions of lucerne aphids. Agricultural and Forest Entomology, 15, 335-350.

Ryalls, J.M.W., Riegler, M., Moore, B.D., Lopaticki, G. & 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.

  2012 and earlier     return to top 

Johnson, S.N., Clark, K.E., Hartley, S.E., Jones, T.H., McKenzie, S.W. & Koricheva, J. (2012) Aboveground-belowground herbivore interactions: a meta-analysis. Ecology, 93, 2208–2215.

Clark, K.E., Hartley, S.E., Brennan, R.M., MacKenzie, K. & Johnson, S.N. (2012) Oviposition and feeding behaviour by the vine weevil (Otiorhynchus sulcatus) on red raspberry: effects of cultivars and plant nutritional status. Agricultural & Forest Entomology, 14, 157–163.


Johnson, S.N. & Nielsen, U. (2012) Foraging in the dark - chemically mediated host location by root-feeding insects. Journal of Chemical Ecology, 38, 604–614.


Huang, J., Liu, M., Chen, F., Griffiths, B.S., Xiaoyun Chen, X., Johnson, S.N. & Hu, F. (2012) Crop resistance traits modify the effects of an above-ground herbivore, brown planthopper, on soil microbial biomass and nematode community via changes to plant performance. Soil Biology & Biochemistry, 49, 157–166.


Aslam, T.J., Johnson, S.N. & Karley, A.J. (2012) Plant-mediated effects of drought on aphid population structure and parasitoid attack rates. Journal of Applied Entomology, 137, 136–145.


Clark, K.E., Hartley, S.E., Brennan, R.M., Jennings, S.N., McMenemy, L.S., McNicol, J.W., Mitchell, C. & Johnson, S.N. (2012) Effects of cultivar and egg density on a colonizing vine weevil (Otiorhynchus sulcatus) population and its impacts on red raspberry growth and yield. Crop Protection, 32, 76–82.


Clark, K.E., Hartley, S.E., Brennan, R.M., MacKenzie, K. & Johnson, S.N. (2012) Investigating preference-performance relationships in aboveground-belowground life cycles: a laboratory and field study with the vine weevil (Otiorhynchus sulcatus). Bulletin of Entomological Research, 102, 63–70.


Johnson, S.N., Young, M.W. & Karley, A.J. (2012) Protected raspberry production alters aphid–plant interactions but not aphid population size. Agricultural & Forest Entomology, 14, 217–224.


McMenemy, L.S., Hartley, S.E., MacFarlane, S.A., Karley, A.J., Shepherd, T. & Johnson, S.N. (2012) Raspberry viruses manipulate the behaviour of their insect vectors. Entomologia Experimentalis et Applicata, 144, 56–68


Johnson, S.N., Barton, A.T., Clark, K.E., Gregory, P.J., McMenemy, L.S. & Hancock, R.D. (2011) Elevated atmospheric carbon dioxide impairs the performance of root-feeding vine weevils by modifying root growth and secondary metabolites. Global Change Biology, 17, 688–695.

Johnson, S.N., Staley, J.T., McLeod, F.A.L. & Hartley, S.E. (2011) Plant-mediated effects of soil invertebrates and summer drought on above-ground multi-trophic interactions. Journal of Ecology, 99, 57–65.

Clark, K.E., Hartley, S.E. & Johnson, S.N. (2011) Does mother know best? Parent-offspring conflict in aboveground-belowground herbivore lifecycles. Ecological Entomology, 36, 117–124.


Mitchell, C., Brennan, R.M., Cross, J.V. & Johnson, S.N. (2011) Arthropod pests of currant and gooseberry crops in the U.K.: their biology, management and future prospects. Agricultural & Forest Entomology, 13, 221–237.


Coyle, D.R., Clark, K.E., Raffa, K.F. & Johnson, S.N. (2011) Prior host feeding experience influences ovipositional but not feeding preference in a polyphagous insect herbivore. Entomologia Experimentalis et Applicata, 138, 137–145.


Newton, A.C., Johnson, S.N. & Gregory, P.J. (2011) Implications of climate change for diseases, crop yields and food security. Euphytica, 179, 3–18.

Martin, P. & Johnson, S.N. (2011) Evidence that elevated CO2 reduces resistance to the European large raspberry aphid in some raspberry cultivars. Journal of Applied Entomology, 135, 237–240.


Johnson, S.N. & McNicol, J.W. (2010) Elevated CO2 and aboveground-belowground herbivory by the clover root weevil. Oecologia, 162, 209–216.

Johnson, S.N., Gregory, P.J., McNicol, J.W., Oodally, Y., Zhang, X. & Murray, P.J. (2010) Effects of soil conditions and drought on egg hatching and larval survival of the clover root weevil (Sitona lepidus). Applied Soil Ecology, 44, 75–79.


Johnson, S.N., Hallett, P.D., Gillespie, T.L. & Halpin, C. (2010) Belowground herbivory and root toughness: a potential model system using lignin-modified tobacco. Physiological Entomology, 35, 186-191.


Murray, P.J., Gregory, P.J., Granger, S., Headon, D.M. & Johnson, S.N. (2010) Dispersal of soil-dwelling clover root weevil (Sitona lepidus Gyllenhal; Coleoptera: Curculionidae) larvae in mixed plant communities. Applied Soil Ecology, 46, 422–425.


Johnson, S.N., Petitjean, S., Clark, K.E. & Mitchell, C. (2010) Protected raspberry production accelerates onset of oviposition by vine weevils (Otiorhynchus sulcatus). Agricultural & Forest Entomology, 12, 277–283.


Mitchell, C., Johnson, S.N., Gordon, S.C., Birch, A.N.E. & Hubbard, S.F. (2010) Combining plant resistance and a natural enemy to control Amphorophora idaei. Biocontrol, 55, 321-327

2009 and earlier

Johnson, S.N., Hawes, C. & Karley, A.J. (2009) Reappraising the role of plant nutrients as mediators of interactions between root- and foliar-feeding insects. Functional Ecology, 23, 699–706.


Gregory, P.J., Johnson, S.N., Newton, A.C. & Ingram, J.S.I. (2009) Integrating pests and pathogens into the climate change/food security debate. Journal of Experimental Botany, 60, 2827–2838.


McMenemy, L.S., Mitchell, C. & Johnson, S.N. (2009) Biology of the European large raspberry aphid (Amphorophora idaei): its role in virus transmission and resistance breakdown in red raspberry. Agricultural & Forest Entomology, 11, 61–71.


Johnson, S.N., Anderson, A., Dawson, G. & Griffiths, D.W. (2008) Varietal susceptibility of potatoes to wireworm herbivory. Agricultural & Forest Entomology, 10, 167–174.

Johnson, S.N., Crawford, J.W., Gregory, P.J., Grinev, D.V., Mankin, R.W., Masters, G.J., Murray, P.J., Wall, D.H. & Zhang, X.X. (2007) Non-invasive techniques for investigating and modelling root-feeding insects in managed and natural systems. Agricultural & Forest Entomology, 9, 39–46.


Johnson, S.N., Zhang, X., Crawford, J.W., Gregory, P.J. & Young, I.M. (2007) Egg hatching and survival time of soil-dwelling insect larvae: a partial differential equation model and experimental validation. Ecological Modelling, 202, 493–502.


Zhang, X., Johnson, S.N., Crawford, J.W., Gregory, P.J. & Young, I.M. (2007) A general random walk model for the leptokurtic distribution of organism movement: theory and application. Ecological Modelling, 200, 79–88.


Johnson, S.N., Birch, A.N.E., Gregory, P.J. & Murray, P.J. (2006) The 'mother knows best' principle: should soil insects be included in the preference-performance debate? Ecological Entomology, 31, 395–401.

Johnson, S.N. & Gregory, P.J. (2006) Chemically-mediated host-plant location and selection by root-feeding insects. Physiological Entomology, 31, 1–13.


Johnson, S.N., Zhang, X.X., Crawford, J.W., Gregory, P.J., Hix, N.J., Jarvis, S.J., Murray, P.J. & Young, I.M. (2006) Effects of CO2 on the searching behaviour of the root-feeding clover weevil. Bulletin of Entomological Research, 96, 361–366.


Zhang, X., Johnson, S.N., Gregory, P.J., Crawford, J.W., Young, I.M., Murray, P.J. & Jarvis, S.C. (2006) Modelling the movement and survival of the root-feeding clover weevil, Sitona lepidus, in the root-zone of white clover. Ecological Modelling, 190, 133–146.

Johnson, S.N., Gregory, P.J., Greenham, J.R., Zhang, X. & Murray, P.J. (2005) Attractive properties of an isoflavonoid found in white clover root nodules on the clover root weevil. Journal of Chemical Ecology, 31, 2223–2229.

ohnson, S.N., Gregory, P.J., Murray, P.J., Zhang, X. & Young, I.M. (2004) Host plant recognition by the root-feeding clover weevil, Sitona lepidus (Coleoptera: Curculionidae). Bulletin of Entomological Research, 94, 433–439.

Johnson, S.N., Read, D.B. & Gregory, P.J. (2004) Tracking larval insect movement within soil using high resolution X-ray microtomography. Ecological Entomology, 29, 117–122.

Johnson, S.N., Douglas, A.E., Woodward, S. & Hartley, S.E. (2003) Microbial impacts on plant-herbivore interactions: the indirect effects of a birch pathogen on a birch aphid. Oecologia, 134, 381–387.

Johnson, S.N., Elston, D.A. & Hartley, S.E. (2003) Influence of heterogeneity in host plant quality for a birch aphid. Ecological Entomology, 28, 533–541.

Johnson, S.N., Mayhew, P.J., Douglas, A.E. & Hartley, S.E. (2002) Insects as leaf engineers - can leaf-miners alter leaf structure for birch aphids? Functional Ecology, 16, 575–584.

Blackwell, A. & Johnson, S.N. (2000) Electrophysiological investigation of larval water and potential oviposition chemo-attractants for Anopheles gambiae s.s. Annals of Tropical Medicine and Parasitology, 94, 389–398.

2012 and earlier
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