Professor Gillian Dianne Lewis

Research | Current

Biofilm Research

Stream biofilms are the focus of our current research. This work focuses on the structure, function and ecological roles of these complex communities.

See the stream biofilm website at www.streambiofilm.org.nz


Current and ongoing projects

  • Relationship between bacterial community diversity and functional diversity in stream biofilms
  • Influence of light and flow regimes on bacterial communities in stream biofilms.
  • Microbial biofilms for enhancement of stormwater treatment systems.
  • Microbial biofilms for monitoring the ecological health of streams.
  • The importance of rare bacteria in mixed communities.
  • Stream microbial food webs
slime_180x360_72dpi_Web_Page

Past/completed projects

  • Distribution, persistence and fate of human viruses in aquatic systems
  • Contaminants of Oyster farms by microbial pathogens and indicators
  • Source distribution and implications of microbial contamination of beaches
  • Microbiological components and activity in reducing contaminants in stormwater treatment systems
  • Alternative microbial indicators and water quality
  • Virus transfer to the air by bubble bursting
  • Bacterial resuspension from sediments: implications for water quality
  • Microbial assemblages in wetlands receiving wastewater
  • The influence of bacterial viruses on the bacterial population dynamics in wastewater treatment systems
  • Human viruses in New Zealand Rivers
  • Microbial intervention to reduce methane emissions from waste treatment systems

Research group members

  • Professor Gillian Lewis (Group Leader)
  • Yimin Dong (Research and Teaching Technician)
  • Jo Smith (PhD Student: A Novel Mn depositing stream bacteria)
  • Joanne Hewitt ( PhD Student : Human Adenovirus: a surrogate for the presence of enteric viruses in food and water based at ESR Porirua)
  • Anne-Marie Perchec (PhD Student/Graduate research fellow : Is there an environmental clade of Escherichia coli?)

Selected publications and creative works (Research Outputs)

  • 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 microbiology10.1111/1462-2920.13797
    Other University of Auckland co-authors: Gavin Lear, Kim Handley
  • Wagenhoff, A., Clapcott, J. E., Lau, K. E. M., Lewis, G. D., & Young, R. G. (2017). Identifying congruence in stream assemblage thresholds in response to nutrient and sediment gradients for limit setting. Ecological applications : a publication of the Ecological Society of America, 27 (2), 469-484. 10.1002/eap.1457
  • 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
    URL: http://hdl.handle.net/2292/33713
    Other University of Auckland co-authors: Gavin Lear
  • Perchec, A. M., Lear, G. K., Neale, M., & Lewis, G. D. (2016). Freshwater microbial communities. In P. G. Jellyman, T. J. A. Davie, C. P. Pearson, J. S. Harding (Eds.) Advances in New Zealand Freshwater Science (pp. 167-180). Wellington, New Zealand: Hydrological and Freshwater Science Societies. Related URL.
    URL: http://hdl.handle.net/2292/33910
    Other University of Auckland co-authors: Gavin Lear
  • Gao, S., Lewis, G., & Hemar, Y. (2016). Ultrasonic inactivation of microorganisms #46. Handbook of Ultrasonics and Sonochemistry (pp. 1355-1381). 10.1007/978-981-287-278-4_69
    Other University of Auckland co-authors: Yacine Hemar
  • Kia, E., Wagner Mackenzie, B., Middleton, D., Lau, A., Waite, D. W., Lewis, G., ... Poppitt, S. D. (2016). Integrity of the Human Faecal Microbiota following Long-Term Sample Storage. PloS one, 11 (10)10.1371/journal.pone.0163666
    URL: http://hdl.handle.net/2292/32048
    Other University of Auckland co-authors: Mike Taylor, Sally Poppitt, Marta Paulino Silvestre, Brett Wagner
  • 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 (10), 1988-2002. 10.1111/fwb.12625
    Other University of Auckland co-authors: Vicky Fan, James Curran
  • 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 (10), 1988-2002. 10.1111/fwb.12625
    Other University of Auckland co-authors: Vicky Fan, James Curran, Gavin Lear

Identifiers

Contact details

Primary location

THOMAS BUILDING - Bldg 110
Level 3, Room 348A
3 SYMONDS ST
AUCKLAND 1010
New Zealand

Web links