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Publications

Publications related to this section.

Champion, P.D.; Clayton, J.S. (2001). A risk assessment model for aquatic weeds in New Zealand. In: Weed Risk Assessment, pp. 194-202. Groves, R.H.; Panetta, F.D.; Virtue, J.G. (eds). CSIRO Publishing, Collingwood, Victoria.

Champion, P.; Clayton, J.; Rowe, D.; 2002. Lake Managers Handbook: Alien Invaders. Ministry for the Environment Publication, Wellington, ME number 444, pp 49.

Champion, P.D.; Clayton, J.S. (2000). Border control for potential aquatic weeds. Stage 1 – Weed risk model. Science for Conservation 141. Department of Conservation, Wellington.

Champion, P.D.; Clayton, J.S.; 2001. Border control for potential aquatic weeds. Stage 2 Weed risk assessment. Science for Conservation 185. Department of Conservation, Wellington.

Champion, P.D.; Clayton, J.S.; 2003. The evaluation and management of aquatic weeds in New Zealand. In Child, L.E.; Brock, J.H.; Brundu, G.; Prach, K.; Pysek, P.; Wade, P.M.; Williamson, M. Plant Invasions – Ecological Threats and Solutions. Backhuys, Leiden, The Netherlands.

Hofstra, D.E.; Champion P.D.; Douglas T.M.; 2006. Herbicide trials for the control of parrotsfeather. Journal of Aquatic Plant Management 44: 13–18.

Hofstra, D.E.; Clayton, J.S.; Getsinger, KD. (2001). Evaluation of selected herbicides for the control of exotic submerged weeds in New Zealand: II. The effects of turbidity on diquat and endothall efficacy. Journal of Aquatic Plant Management 39: 25-27.

Hofstra, D.E.; Clayton, J.S. (2001). Control of dioecious New Zealand Hydrilla using fluridone in mesocosms. Journal of Aquatic Plant Management 39: 125-128.

Hofstra, D.E.; Clayton, J.S. (2001). Evaluation of selected herbicides for the control of exotic submerged weeds in New Zealand: I. The use of endothall, triclopyr and dichlobenil. Journal of Aquatic Plant Management 39: 20-24.

Hofstra, D.E.; Clayton, J.S.; Champion, P.D.; Green, J.D. (1999). Distribution and density of vegetative propagules in the sediments of two New Zealand lakes. Journal of Aquatic Plant Management 37: 41-45.

Hofstra, D.E.; Clayton, J.S.; Green, J.D.; Auger, M. (1999). Competitive performance of Hydrilla verticillata in New Zealand. Aquatic Botany 63: 305-324.

Matheson, F.; de Winton, M.; Clayton, J.; Edwards, T.; Mathieson, T. (2005). Responses of vascular (Egeria densa) and non-vascular (Chara globularis) submerged plants and oospores to contrasting sediment types. Aquatic botany 83(2): 141-153.

Matheson, F.E.; Dugdale, A.M.; Wells, R.D.S.; Taumoepeau, A.; Smith, J.P. (2007). Efficacy of saltwater solutions to kill introduced freshwater species and sterilise freshwater fishing nets. DOC Research & Development Series 261. 24 p.

van Nes, E.H.; van den Berg, M.S.; Clayton, J; Coops, H; Scheffer, M.; van Ierland, E.; 1999. A simple model for evaluating the costs and benefits of aquatic macrophytes. Hydrobiologia 415: 335-339.

Wells, R.; Clayton J. (2005). Mechanical and Chemical Control of Aquatic Weeds: Costs and Benefits. Encyclopaedia of Pest Management. Dekker.

Wells, R.D.S.; Bannon, H.J.; Hicks, B.J.; 2003. Macrophyte responses to grass carp used for weed control in Waikato drain, New Zealand Journal of Marine and Freshwater Research 37(1) 85-93.

Wells, R.D.S.; Clayton, J.S. (2001). Ecological impacts of water net (Hydrodictyon reticulatum) in Lake Aniwhenua, New Zealand. New Zealand Journal of Ecology 25: 55-63.

Specimen of M. pedunculatum 5 cm high. (Photo by R. Wells)