Dr Gavin Lear
DPhil (Env. Biotech.), Oxford, UK; BSc (Hons) Env. Biol, Nottingham, UK.
Research | Current
My research largely explores the complex interactions among microbial communities and the varied environments that they inhabit. I investigate how microbial communities adapt to human influences such as pollution events and agricultural management, as well as to natural variability in environmental conditions. A key goal of my research is to use microbial responses to such events as a quantitative indicator of the impact of human activities on New Zealand’s fragile soil and freshwater environments. In my laboratory, we therefore use modern molecular tools to conduct a wide-range of research in the broad fields of microbial ecology, biotechnology and environmental science. I have a broad-range of interests in both pure and applied aspects of environmental microbiology and am keen to help motivated individuals investigate diverse research interests.
Teaching | Current
BioSci 204 (Principles in Microbiology)
BioSci206 (Principles in Ecology)
BioSci 347 (Environmental Microbiology and Biotechnology)
BioSci 749 (Ecology of Microbial Interactions)
Victor Gambarini (PhD student) Microbial indicators of plastic pollution
Stefan Maday (PhD student) Isolation adn characterisation of plastic-degrading microbes
Anju Gautam (PhD student) Response to environmental change by bacterial communities in stream biofilms
Syrie Hermans (PhD student) The biogeography of bacteria in NZ soils.
Amrita Bains (PhD student, co-supervised) Whole-cell biocatalysis of emerging wastewater pollutants.
Paulina Giraldo-Perez (PhD student, co-supervised) Evaluating the impact of synthetic pesticides on the biodiversity and evolution of biological systems.
Katie Worrallo (PhD student, co-supervised) Marine microbiology and genomics: Improving our understanding of how microbial communities respond to estuarine nutrient pollution.
Hwee Sze Tee (PhD student, co-supervised) Understanding spatial and temporal patterns of bacterial communities in aquatic ecosystems
Areas of expertise
I have key interests in:
- The role of microorganisms in maintaining environmental health and productivity
- Molecular methods to assess microbial community diversity, function and distribution.
- Microbial diversity and biogeography
- The use of microorganisms for the bioremediation of polluted environments
- Microbial interactions with plastic pollution
Selected publications and creative works (Research Outputs)
- Laroche, O., Wood, S. A., Tremblay, L. A., Ellis, J. I., Lear, G., & Pochon, X. (2018). A cross-taxa study using environmental DNA/RNA metabarcoding to measure biological impacts of offshore oil and gas drilling and production operations. Marine pollution bulletin, 127, 97-107. 10.1016/j.marpolbul.2017.11.042
Other University of Auckland co-authors: Louis Tremblay, Xavier Pochon
- Lear, G., Dickie, I., Banks, J., Boyer, S., Buckley, H., Buckley, T., ... Hermans, S. (2018). Methods for the extraction, storage, amplification and sequencing of DNA from environmental samples. New Zealand Journal of Ecology10.20417/nzjecol.42.9
Other University of Auckland co-authors: Robin MacDiarmid, Thomas Buckley, Syrie Hermans
- Wakelin, S. A., Gomez-Gallego, M., Jones, E., Smaill, S., Lear, G., & Lambie, S. (2018). Climate change induced drought impacts on plant diseases in New Zealand. Australasian Plant Pathology, 47 (1), 101-114. 10.1007/s13313-018-0541-4
- Lear, G., Lau, K., Perchec, A.-M., Buckley, H. L., Case, B. S., Neale, M., ... Lewis, G. (2017). Following Rapoport's Rule: The geographic range and genome size of bacterial taxa decline at warmer latitudes. Environmental Microbiology, 19 (8), 3152-3162. 10.1111/1462-2920.13797
Other University of Auckland co-authors: Kim Handley, Gillian Lewis, Kelvin Lau
- 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 offshore oil production impacts on benthic communities. PeerJ, 510.7717/peerj.3347
Other University of Auckland co-authors: Xavier Pochon, Louis Tremblay
- Wu, J., Anderson, B. J., Buckley, H. L., Lewis, G., & Lear, G. (2017). Aspect has a greater impact on alpine soil bacterial community structure than elevation. FEMS microbiology ecology, 93 (5).10.1093/femsec/fix032
- Wu, J., Anderson, B. J., Buckley, H. L., Lewis, G., & Lear, G. (2017). Aspect has a greater impact on alpine soil bacterial community structure than elevation. FEMS Microbiology Ecology, 93 (3)10.1093/femsec/fiw253
Other University of Auckland co-authors: Gillian Lewis
- Anderson, C., Beare, M., Buckley, H. L., & Lear, G. (2017). Bacterial and fungal communities respond differently to varying tillage depth in agricultural soils. PeerJ, 5, e3930-e3930. 10.7717/peerj.3930