Dr Ian Duggan
Senior Lecturer
Ian Duggan is a lecturer at the University of Waikato and associate editor of Marine and Freshwater Ecology with research expertise in zooplankton taxonomy, ecology and invasion biology. Ian is involved in examining processes of colonisation in aquatic ecosystems by new species and methods for early detection of invading species. He is also involved in research examining invertebrate species responses to removal of pest fish populations. Ian was recently awarded Marsden funding from the Royal Society of New Zealand to determine whether man-made reservoirs are more readily invaded by exotic, invasive organisms than naturally occurring aquatic ecosystems. He will also investigate whether "seeding" man-made aquatic habitats with native species is an effective tool to reduce the establishment rate and spread of non-indigenous organisms.
E-mail: duggan@waikato.ac.nz
Expand to see publications from lan DugganPublications
The downloads on this page have been provided to the author for non-commercial research and education use only. Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited.
Journal, book, and conference publications
Lucena-Moya, P., and Duggan, I.C. 2011. Macrophyte architecture affects the abundance and diversity of littoral microfauna. Aquatic Ecology 45: 279-287. Read abstract.
Duggan, I.C. 2011. Aquaria. In: Encyclopedia of Biological Invasions. D. Simberloff and M. Rejmanek (Eds.) University of California Press, pp. 32-35.
Özkundakci, D., Duggan, I.C. and Hamilton, D.P. 2011. Does sediment capping have post-application effects on zooplankton and phytoplankton? Hydrobiologia 661: 55-64. Read abstract.
Trolle, D., Hamilton, D.P., Pilditch, C.A. Duggan, I.C., and Jeppesen, E. 2011. Predicting the effects of climate change on trophic status of three morphologically varying lakes: Implications for lake restoration and management. Environmental Modelling and Software 26: 354-370. doi:10.1016/j.envsoft.2010.08.009. Read abstract.
Duggan, I. C. 2010. The freshwater aquarium trade as a vector for incidental invertebrate fauna. Biological Invasions 12: 3757-3770. Read abstract.
Duggan, I. C. and M.A. White, 2010, Consequences of human-mediated marine intrusions on the zooplankton community of a temperate coastal lagoon. New Zealand Journal of Marine and Freshwater Research 44: 17-28. Read abstract.
Hamilton, D.P. and Duggan, I.C., 2010. Plankton. Chapter 7. In: Waters of the Waikato: Ecology of New Zealand’s Longest River. K.J. Collier, D.P. Hamilton, W. Vant and C. Howard-Williams (Eds.) Environment Waikato/University of Waikato, pp. 117-132.
Makino, W., Knox, M.A. and I.C. Duggan, 2010. Invasion, genetic variation and species identity of the calanoid copepod Sinodiaptomus valkanovi. Freshwater Biology 55: 375-386.
(Read abstract)
Shiel, R.J., Smales, L., Sterrer, W., Duggan I.C., Pichelin, S. and J.D. Green, 2009. Phylum Gnathifera: Lesser Jaw Worms, Rotifers, Thorny Headed Worms. In: New Zealand Inventory of Biodiversity. Volume 1. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press. p 137-158.
Özkundakci, D., Duggan, I. C. and D. P. Hamilton, 2009. Does sediment capping have post-application effects on zooplankton and phytoplankton? Hydrobiologia, DOI: 10.1007/s10750-009-9938-y.
(Read abstract)
Knox, M. A., Hogg, I. D., Pilditch, C. A. and Stevens, M. A. 2008. Genetically distinct populations revealed in New Zealand Paracorophium species using COI sequences. In prep to be submitted before 2009.
Banks, C.M. and Duggan, I.C. 2009. Lake construction has facilitated calanoid copepod invasions in New Zealand. Diversity and Distribution.
Balvert, S., Duggan, I.C. and Hogg, I. 2009. Zooplankton seasonal dynamics in a recently filled mine pit lake: the effect of non-indigenous Daphnia establishment. Aquatic Ecology. 43: (2) 403-413.
Fowler, E C. and Duggan, I. C. 2009. Assessment of trophic state change in selected lakes of the Auckland region based on Rotifer Assemblages: 2005-2008. Report to Auckland Regional Council, 2008. p.1-21. Auckland Regional Council Technical Report TR2009/001.
Duggan, I.C. 2008. Zooplankton composition and a water quality assessment of seventeen Waikato lakes using rotifer community composition Report for Environment Waikato. CBER, School of Science and Engineering, The University of Waikato, Hamilton. Duggan, I.C. 2008. (CBER Report 80).
Duggan, I.C., Boothroyd, I.K. and Speirs, D.A. 2007. Factors affecting the distribution of stream macroinvertebrates in geothermal areas: Taupo Volcanic Zone, New Zealand. Hydrobiologia 592: 235-247.
Bailey S.A., Duggan, I.C. and MacIsaac, H.J. 2007. Sediments in Ships: Biota as Biological Contaminants. Aquatic Ecosystem Health and Management 10: 93-100.
Duggan, I.C., Bailey S.A., van Overdijk, C.D.A. and MacIsaac, H.J. 2006. Invasion risk of active and diapausing invertebrates from residual ballast in entering Chesapeake Bay. Marine Ecology Progress Series 324: 57-66.
Duggan, I.C., Green, J.D. and Burger, D.F. 2006. First New Zealand records of three non-indigenous zooplankton species: Skistodiaptomus pallidus, Sinodiaptomus valkanovi and Daphnia dentifera. New Zealand Journal of Marine and Freshwater Research 40: 561-569.
Ryan, E.F., Duggan, I.C., Hamilton, D.P. and Burger, D.F. 2006. Phytoplankton community composition in lakes: is Trophic state or mixing more important? New Zealand Journal of Marine and Freshwater Research 40: 389-398.
Gray, D.K., Duggan, I.C. and MacIsaac, H.J. 2006. Can sodium hypochlorite reduce the risk of species introductions from diapausing invertebrate eggs in non-ballasted ships? Marine Pollution Bulletin 52: 689-695.
Duggan, I.C., Rixon, C.A.M. and MacIsaac, H.J. 2006. Popularity and propagule pressure: determinants of invasion success in aquarium fish. Biological Invasions 8: 393-398.
Duggan, I.C., van Overdijk, C.D.A., Bailey, S.A., Jenkins, P.T., Limén H. and MacIsaac, H.J. 2005. Invertebrates associated with residual ballast water and sediments of cargo-carrying ships entering the Great Lakes. Canadian Journal of Fisheries and Aquatic Sciences 62: 2463-2474.
Bailey, S.A., Nandakumar, K., Duggan, I.C., van Overdijk, C.D.A., Johengen, T.H., Reid, D.F. and MacIsaac, H.J. 2005. In situ hatching of invertebrate diapausing eggs from ships' ballast sediment. Diversity and Distributions 11: 453-460.
Bailey, S.A., Duggan, I.C., Jenkins, P.T. and MacIsaac, H.J. 2005. Invertebrate resting stages in residual ballast sediment of transoceanic ships. Canadian Journal of Fisheries and Aquatic Sciences 62: 1090-1103.
Gray, D.K., Bailey, S.A., Duggan, I.C. and MacIsaac, H.J. 2005. Viability of invertebrate diapausing eggs exposed to saltwater: implications for Great Lakes' ship ballast management. Biological Invasions 7: 531-539.
Rixon, C.A.M., Duggan, I.C., Bergeron, N.M.N., Ricciardi A. and MacIsaac, H.J. 2005. Invasion risks posed by the aquarium trade and live fish markets to the Laurentian Great Lakes. Biodiversity and Conservation 14: 1365-1381.
Bailey, S.A., Duggan, I.C., van Overdijk, C.D.A., Johengen, T.H., Reid, D.F. and MacIsaac, H.J. 2004. Salinity tolerance of diapausing eggs of freshwater zooplankton. Freshwater Biology 49: 286-295.
Grigorovich, I.A., Korniushin, A.V., Gray, D.K., Duggan, I.C., Colautti, R.I. and MacIsaac, H.J. 2003. Lake Superior: an invasion coldspot? Hydrobiologia 499: 191-210.
Bailey, S.A., Duggan, I.C., van Overdijk, C.D.A., Jenkins, P.T. and MacIsaac, H.J. 2003. Viability of invertebrate diapausing eggs collected from residual ballast sediment. Limnology and Oceanography 48: 1701-1710.
Hampton, S.E. and Duggan, I.C. 2003. Diel habitat shifts of macrofauna in a fishless pond. Marine and Freshwater Research 54: 797-805.
Duggan, I.C., Scarsbrook, M.R. and Quinn, J.M. 2003. Comparison of coded abundance and fixed count rapid assessment techniques for biomonitoring in New Zealand streams. New Zealand Journal of Marine and Freshwater Research 37: 23-30.
Duggan, I.C., Collier, K.J., Champion, P.D., Croker, G.F., Davies-Colley, R.J., Lambert, P.D., Nagels, J.W. and Wilcock, R.J. 2002. Ecoregional differences in macrophyte and macroinvertebrate communities between Westland and Waikato: are all New Zealand lowland streams the same? New Zealand Journal of Marine and Freshwater Research 36: 831-845.
Duggan, I.C. 2002. First record of a wild population of the tropical snail Melanoides tuberculata in New Zealand. New Zealand Journal of Marine and Freshwater Research 36: 825-829.
Duggan, I.C., Collier, K.J. and Lampert, P.D. 2002. Evaluation of invertebrate biometrics and the influence of subsample size using data from some Westland lowland streams. New Zealand Journal of Marine and Freshwater Research 36: 117-128.
Duggan, I.C., Green, J.D. and Shiel, R.J. 2002. Rotifer resting egg densities in lakes of different Trophic state, and their assessment using emergence and egg counts. Archiv für Hydrobiologie 153: 409-420.
Duggan, I.C., Green, J.D. and Shiel, R.J. 2002. Distribution of rotifer assemblages in North Island, New Zealand, lakes: relationships to environmental and historical factors. Freshwater Biology 47: 195-206.
Duggan, I.C., Green, J.D. and Shiel, R.J. 2001. Distribution of rotifers in North Island, New Zealand, and their potential use as bioindicators of lake Trophic state. Hydrobiologia 446/447: 155-164.
Duggan, I.C. 2001. Invited review: The ecology of periphytic rotifers. Hydrobiologia 446/447: 139-148.
Duggan, I.C., Green, J.D., Thompson, K. and Shiel, R.J. 2001. The influence of macrophytes on the spatial distribution of littoral rotifers. Freshwater Biology 46: 777-786.
Duggan, I.C., Green, J.D. and Thomasson, K. 2001. Do rotifers have potential as bio-indicators of lake Trophic state? Verhandlungen - Internationale Vereinigung fur Theoretische und Angewandte Limnologie 27: 3497-3502.
Duggan, I.C., Green, J.D., Thompson, K. and Shiel, R.J. 1998. Rotifers in relation to littoral ecotone structure in Lake Rotomanuka, North Island, New Zealand. Hydrobiologia 387/388: 179-197.
Back to top
