Publications

Laroche, O., Wood, S.A., Tremblay, L.A., Lear, G., Ellis, J.I., Pochon, X. (2017) Metabarcoding  monitoring analysis:the pros and cons of using co-extracted environmental DNA and RNA data to assess production impacts  on benthic communities. PeerJ 5: e3347.

Lear, G., Lau, K., Perchec, A-M., Buckley, H.L., Case, B.S., Neale, M., Fierer, N., Jeff, J.W., Handley, K.M., Lewis, G.D. (2017) Environmental Microbiology. in press

Hermans, S.M., Buckley, H.L., Case, B.S., Curran-Cournane, F., Taylor, M., Lear, G. (2017) Bacteria as emerging indicators of soil condition. Applied and Environmental Microbiology 81 (1): e02826-16

Wu, J,. Anderson, B.J,. Buckley, H.L., Lewis, G., Lear, G. (2016) Aspect has a greater impact on soil bacterial community structure than elevation. FEMS Microbiology Ecology  fiw253

Laroche, O., Wood, S.A., Tremblay, L.A., Ellis, J.I., Lejzerowicz, F., Pawlowski, J., Lear, G., Atalah, J., Pochon, X (2016) First evaluation of foraminiferal metabarcoding for monitoring environmental impact from an offshore soil drilling site. Marine Environmental Research 120: 225-235.

Perez-Garcia, O., Lear, G., Singhal, N. (2016) Metabolic network modeling of microbial interactions in natural and engineered environmental systems. Frontiers in Microbiology 7: article 673.

Commault, A.S., Lear, G., Bouvier, S., Feiler, L., Karacs, J., Weld, R.J. (2016) Geobacter-dominated biofilms used as amperometric BOD sensors. Biochemical Engineering Journal 109: 88-95.

Commault, A.S., Barriere, F., Lapinsonniere, L., Lear, G., Bouvier, S., Weld, R.J. (2015) Influence of inoculum and anode surface properties on the selection of Geobacter-dominated biofilms. Bioresource Technology 60: 1988-2002

Lau, K.E.M., Washington, V.J., Fan, V., Neale, M.W., Lear, G., Curran, J., Lewis, G.D (2015) A novel Bacterial Community Index to assess stream ecological health. Freshwater Biology 60: 1988-2002

Commault, A.S., Lear, G., Weld, R.J. (2015) Maintenance of Geobacter-dominated biofilms in microbial electrolysis cells treating synthetic wastewater. Bioelectrochemistry 106: 150-158

Dopheide, A., Lear, G., He, Z., Zhou, J., Lewis, G.D. (2015) Functional gene composition and redundancy in stream microbial biofilms. PLosOne DOI: 10.1371/journal.pone.0123179 

Curran-Cournane, F., Lear, G., Schwendenmann, L., Khin, J (2015) Heavy metal soil pollution is influenced by the location of green spaces within urban settings. Soil Research  53: 306-315.

Piggot, J.J., Salis, R.K., Lear, G., Townsend, C.R., Matthei, C.D. (2015) Climate warming and agricultural stressors interact to determine stream periphyton composition. Global Change Biology 21: 206-222.

Adair, K.L., Wratten, S., Barnes, A-M., Waterhouse, B.R., Smith, M., Lear, G., Weber, P., Pizey, M., Boyer, S (2014) Effects of biosolids on biodiesel crop yield and belowground communities. Ecological Engineering 68: 270-278.

Commault, A.S., Lear, G., Weld, R.J. (2014) Comment on microbial community composition is unaffected by anode potential. Environmental Science and Technology. 48(24): 14851-14852

Winkworth, C.L., Lear, G. (2014) Antimicrobial potential of the ionophore Monensin on freshwater biofilm bacteria. Environmental Science and Pollution Research 21: 10139-10150.

Lear, G., Bellamy, J., Case, B., Lee, J., Buckley, H (2014) Fine-scale patterns in bacterial community composition and function within freshwater ponds. The ISME Journal 8: 1715-1726.

Commault, A.S., Lear, G., Novis, P., Weld, R.S (2014) Photosynthetic biocathode enhances power output of a sediment-type microbial fuel cell. New Zealand Journal of Botany 52: 48-59

Ancion, P-Y., Lear, G., Neale, M., Roberts, K., Lewis, G.D. (2014) Using biofilms as a novel approach to assess stormwater treatment efficacy. Water Research 49 (1): 406-415

Wells, N.S., Clough, T.J., Condron, L.M., Baisden, W.T., Harding, J.S., Dong, Y., Lewis, G.D., Lear, G. (2013) Biogeochemistry and community ecology in a spring-fed urban river following a major earthquake. Environmental Pollution. 182: 190-200.

Washington, V., Lear, G., Neale, M., Lewis, GD (2013) Environmental effects on biofilm bacterial communities: a comparison of natural and anthropogenic factors in new Zealand streams. Freshwater Biology. 58 (11): 2277-2286.

Lee, J., Buckley, H., Etienne, R.S, Lear, G. (2013) Both species sorting and neutral processes drive assembly of bacterial communities in aquatic microcosms. FEMS Microbiology Ecology. 86(2): 288-302.

Magbanua, F.S., Townsend, C.R., Hageman, K.J., Lange, K., Lear, G., Lewis, G.D., Matthei, C.D. (2013) Understanding the combined influence of fine sediment and glyphosate on stream periphyton communities. Water Research 47(14): 5110-5120

Commault, A., Lear, G., Packer, M., Weld, R. (2013) Influence of anode potentials on selection of Geobacter strains in microbial electrolysis cells. Bioresource Technology 139: 226-234.

Adair, K., Wratten, S., Lear, G. (2013) Soil phosphorus depletion and shifts in plant communities change bacterial community structure in a long-term grassland management trial. Environmental Microbiology Reports 5 (3): 404-413.

Yamamura, T., Schwendenmann, L., Lear, G (2013) Tree species identity has little impact on the structure of soil bacterial communities in a 10 yr-old tropical tree plantation. Biology and Fertility of Soils 49: 819-828.

Lear, G., Washington, V., Neale, M., Case, B., Buckley, H., Lewis, GD (2013) Biogeography of Stream Biofilms. Global Ecology and Biogeography. 22: 544-554

Ancion, P-Y., Lear, G., Dopheide, A., Lewis, GD (2013) Metal concentrations in stream biofilms and sediments and their potential to explain biofilm microbial community structure. Environmental Pollution 173: 117-124.

Lear, G., Ancion, P-Y., Harding, J., Lewis, GD (2012) Use of bacterial communities to assess the ecological health of a recently restored stream. New Zealand Journal of Marine and Freshwater Research 46: 291-301.

Lear, G., Dopheide, A., Ancion, P-Y., Lewis, GD (2011) A comparison of bacterial, ciliate and macroinvertebrate indicators of stream ecological health. Aquatic Ecology 45: 517-727.

Dopheide, A., Lear, G., Stott, R., Lewis, G.D. (2011) Preferential feeding by the ciliates Chilodonella and Tetrahymena and their effects on bacterial biofilm structure and composition.Applied and Environmental Microbiology 77 (13): 4564-4572.

Lear, G., Dong, Y., Lewis, GD (2010)  Comparison of methods for the extraction of DNA from stream epilithic biofilms. Antonie van Leeuwenhoek  International Journal of General and Molecular Microbiology 98 (4): 567-571.

Ancion, P-Y., Lear, G., Lewis, GD (2010) Three common metals contaminants of urban runoff (Zn, Cu and Pb) accumulate in freshwater biofilm and modify embedded bacterial communities. Environmental Pollution 158 (8): 2738-2745.

Lear, G., McBeth, JM., Boothman, C., Gunning, DJ., Ellis, B., Lawson, R., Morris, K., Burke, IT., Bryan, ND., Brown, AP., Livens, FR., Lloyd, JR (2010) Towards the insitu remediation of radioactive waste; probing the biogeochemical behaviour of technetium using a novel nuclear imaging technique. Environmental Science and Technology 44 (11): 156-162.

Dopheide, A., Lear, G., Stott, R., Lewis, GD (2009) Relative diversity and community structure of ciliates in stream biofilms according to molecular and microscopy methods. Applied and Environmental Microbiology 75: 5261-5272.

Lear, G., Niyogi, D., Harding, J., Dong, Y., Lewis, GD (2009) Biofilm bacterial community structure in streams affected by acid mine drainage. Applied and Environmental Microbiology 75 (11): 3455-3460.

Lear, G., Boothroyd, IKG., Turner, S., Roberts, K., Lewis, GD (2009) A comparison of bacterial and benthic invertebrate community assemblages as indicators of ecological health within freshwater streams. Freshwater Biology 54: 1531-1543.

Lear, G., Turner, S., Lewis, GD (2009) Effect of light regimes on the utilisation of an exogenous carbon source by biofilm bacterial communities. Aquatic Ecology 43: 207-220.

Lear, G., Lewis, GD (2009) Impact of land use on bacterial communities within stream biofilms. Ecological Indicators 9: 848-855.

Lear, G., Lewis, GD (2009) Nested automated ribosomal intergenic spacer analysis: a rapid and accurate method for comparison of bacterial community composition. Journal of Rapid Methods and Automation in Microbiology 17: 257-270.

Harbottle, MJ., Lear, G., Sills, GC., Thompson, IP (2009) Enhanced biodegradation of pentachlorophenol in unsaturated soil using reverse field electrokinetics. Journal of Environmental Management 90: 1983-1900.

Hery, M., Gault, AG., Rowland, HAL., Lear, G., Polya, DA., Lloyd, JR (2008) Molecular and cultivation-dependent analysis of metal-reducing bacteria implicated in arsenic mobilisation in South East Asian aquifers. Applied Geochemistry 23: 3215-3223.

Lear, G., Anderson, MJ., Smith, JP., Boxen, K., Lewis, GD (2008) Spatial and temporal heterogeneity of the bacterial communities in stream epilithic biofilms. FEMS Microbiology Ecology 65: 463-473.

Dopheide, A., Lear, G., Stott, R., Lewis, GD (2008) Molecular characterisation of ciliate diversity in stream biofilms. Applied and Environmental Microbiology 74: 1740-1747.

Lear, G., Polya, DA., Song, B., Gault, AG., Lloyd, JR (2007) Molecular analysis of arsenate-reducing bacteria within Cambodian sediments following amendment with acetate. Applied and Environmental Microbiology 73: 1041-1048

Lear, G., Harbottle, MJ., Sills, G., Knowles, CJ., Thompson, IP (2007) Impact of electrokinetic remediation on microbial communities within PCP contaminated soil. Environmental Pollution 146: 139-146.

Al-Bokari, M., Boothman, C., Lear, G., Lloyd, JR., Livens, FR (2007) Responses of U and Pu to microbially driven nitrate reduction in sediments. Royal Society of Chemistry Special Publications: Environmental Radiochemical Analysis III: 91-100.

McBeth, JM., Lear, G., Morris, K., Burke, IT., Livens, FR., Lloyd, FR (2007) technetium reduction and reoxidation in aquifer sediments. Geomicrobiology 23: 1-9.

Fox, JR., Morris, K., Lear, G., Lloyd, JR., Mortimer, RJG., Beadle, I (2006) The biogeochemical behaviour of U(VI) in the simulated near-field  of a low-level radioactive waste repository. Applied Geochemistry 21: 1539-1550.

Lear, G., Harbottle, MJ., van der Gast, Cj., Jackman, S., Knowles, CJ., Sills, G., Thompson, IP (2004) The effect of electrokinetics on soil microbial communities. Soil Biology and Biochemistry 36: 1751-1760.

Books and Book Chapters

Jones, O.A.H., Lear, G., Welji, A.M., Collins, G., Quince, C (2017) Community metabolomics in environmental microbiology. Microbial Metabolomics: Applications in Clinical: Environmental and Industrial Microbiology. Beale, D.J., Kouremenos, K.A., Palombo, E.A (Eds). Springer Press

Lear, G [Ed.] (2016) Biofilms in Bioremediation: Current Research and Emerging Technologies. Caister Academic Press, Norwich, UK. 252 pp.

Lear, G., Lewis, GD [Eds.] (2012) Microbial Biofilms: Current Research and Applications. Caister Academic Press, Norwich, UK, 220pp.

Technical Reports

Lewis, GD., Washington, V., Lear, G., Roberts, K., Curran, J., Fan, V., Neale, M (2011) A bacterial community index (BCI) for New Zealand streams. Technical Report TR 2010/068. 200pp.

Lear, G., Ancion, P-Y., Roberts, K., Lewis, GD (2009) Use of microbial biofilms to monitor the efficacy of a stormwater treatment train. Technical Report TR2009_086 for the Auckland Regional Council. 52pp.

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