Landcare Research - Manaaki Whenua

Landcare-Research -Manaaki Whenua

Graham Nugent

Graham Nugent
Position: Research/Capability Leader
Team: Wildlife Ecology & Management
Location: Lincoln
P.O. Box 69040
Lincoln 7640
Phone: +64 3 321 9761
Mob: 027 810 0788
Fax: +64 3 321 9998

Contact Graham

Research Interests

Research Interests

Role at Landcare Research

Programme leader, Wildlife Ecology and Epidemiology Team, Lincoln

Research interests

  • Epidemiology and managememt of bovine tuberculosis in wildlife
  • Surveillance systems for quantifying freedom from pests and disease
  • Large-scale elimination of mammal pests
  • Impacts of possums, wild deer, and pigs on conservation values

Professional affiliations / recognition


Appointed by the Minister of Conservation to a panel commissioned to develop options for the management of deer, pigs, chamois and thar


Invited speaker, inaugural world deer veterinary conference, Queenstown


Invited keynote presenter, Tb deer conference, Michigan


Invited Hawaiian exchange on ungulate impacts


Invited advisor & facilitator, goat eradication workshop, Galapagos Islands


Scientific advisor, DOC national deer control plan working party


Advisor, DOC working party on deer control in the Kaweka Ranges


Scientific adviser, National Recreational Hunting Advisory Committee


New Zealand Ecological Society


Australasian Wildlife Management Society


New Zealand Biosecurity Institute

Recent publications

Sweetapple P, Nugent G 2007. Ship rat demography and diet following possum control in a mixed podocarp-hardwood forest. New Zealand Journal of Ecology 31: 186–201.

Coleman, J.D.; Fraser, K.W.; Nugent, G. 2007. Costs and benefits of pre-feeding for possum control. New Zealand Journal of Zoology 34:185–193.

Nugent, G; Morgan, D.R.; Sweetapple, P.; Warburton, B. 2007. Developing strategy and tools for the local elimination of multiple pest species. Pp 411-417 in: Witmer, G.W.; Pitt, W.C.; Fagerstone, K.A. (Eds.). Managing Vertebrate Invasive Species: Proceedings of an International Symposium. USDA/APHIS/WS, National Wildlife Research Center, Fort Collins, Colorado. USA.

Parkes, J.P.; Nugent, G. (Submitted early 2008). Techniques and tools to manage terrestrial vertebrate pests. In Invasive species management. Clout MN and Williams P. (Eds.) Oxford University Press.

Sweetapple P, Nugent G 2007. Ship rat demography and diet following possum control in a mixed podocarp-hardwood forest. New Zealand Journal of Ecology 31: 186–201.

Coleman, J.D.; Fraser, K.W.; Nugent, G. 2007. Costs and benefits of pre-feeding for possum control. New Zealand Journal of Zoology 34:185–193

Morgan DR, Nugent G, Warburton B 2006. Benefits and feasibility of local elimination of possum populations. Wildlife Research 33: 605–614.

Ryan, T.J.; Livingstone, P.G.; Ramsey, D.S.L.; de Lisle, G.W.; Nugent, G.; Collins, D.M.; Buddle, B.M. 2006. Advances in understanding disease epidemiology and implications for control and eradication of tuberculosis in livestock: The experience from New Zealand. Veterinary Microbiology 112: 211-219.

Morgan DR, Gleeson DM, Howitt RLJ, Nugent G 2006. Genotyping brushtail possum faecal pellets and ear tissue to identify bias in trap-catch monitoring. Proceedings of the 22nd Vertebrate Pest Conference, University of California, Davis, USA. Pp. 473–478

Sweetapple PJ, Nugent G, Poutu N, Horton P 2006. Effect of reduced possum density on rodent and stoat abundance in podocarp-hardwood forests. DOC Research & Development Series 231.

Ball SJ, Ramsey D, Nugent G, Warburton B, Efford M 2005. A method for estimating wildlife detection probabilities in relation to home-range use: insights from a field study on the brushtail possum (Trichosurus vulpecula). Wildlife Research 32: 217–227.

Nugent G 2005. The role of wild deer in the epidemiology and management of bovine tuberculosis in New Zealand. Unpubl. PhD thesis, Lincoln University, New Zealand. 170 p.

Nugent G, Fraser KW 2005. Red deer. In: King CM. ed. The handbook of New Zealand mammals. 2nd edn. Melbourne, Oxford University Press. Pp. 410–420.

Nugent G, Choquenot D 2004. Comparing cost-effectiveness of commercial harvesting, state-funded culling, and recreational deer hunting in New Zealand. Wildlife Society Bulletin 32: 481–492.

Nugent G, Yockney I 2004. Fallow deer deaths during aerial 1080-poisoning of possums in the Blue Mountains, Otago, New Zealand. New Zealand Journal of Zoology 31: 85–192.

Sweetapple P, Nugent G 2004. Seedling ratios: a simple method for assessing ungulate impacts on forest understoreys. Wildlife Society Bulletin 32: 137–147.



  • Lincoln
    PhD Ecology
  • Auckland
    MSc (Hons)
  • Canterbury
    BSc Zoology



  • Morriss GA, Nugent G, Whitford J 2016. Dead birds found after aerial poisoning operations targeting small mammal pests in New Zealand 2003-14. New Zealand Journal of Ecology 40(3): 361-370. (Journal Article, 2016)
  • Sweetapple PJ, Nugent G, Whitford J, Latham MC, Pekelharing K 2016. Long-term response of temperate canopy trees to removal of browsing from an invasive arboreal herbivore in New Zealand. Austral Ecology 41(5): 538-548. (Journal Article, 2016)
  • Latham ADM, Latham MC, Nugent G, Smith J, Warburton B 2016. Refining operational practice for controlling introduced European rabbits on agricultural lands in New Zealand. PLoS ONE 11(6): e0158078. (Journal Article, 2016)
  • Nugent G 2016. Possums as hosts of bovine TB. OSPRI Factsheet RD05. (Pamphlet, 2016)
  • Anderson DP, Ramsey DSL, De Lisle GW, Bosson M, Cross ML, Nugent G 2015. Development of integrated surveillance systems for the management of tuberculosis in New Zealand wildlife. New Zealand Veterinary Journal 63(supplement 1): 89-97. (Journal Article, 2015)
  • Yockney IJ, Latham MC, Rouco C, Cross ML, Nugent G 2015. Quantifying short-term foraging movements in a marsupial pest to improve targeted lethal control and disease surveillance. PLoS ONE 10(3): e0121865. (Journal Article, 2015)
  • Palmer MV, O'Brien DJ, Griffin JF, Nugent G, de Lisle GW, Ward A, Delahay RJ 2015. Tuberculosis in wild and captive deer. In: Mukundan H, Chambers MA, Waters WR, Larsen MH ed. Tuberculosis, leprosy and other mycobacterial diseases of man and animals: the many hosts of mycobacteria. Wallingford, U.K., CABI Publishing. Pp. 334-364. (Book Section, 2015)
  • Gortázar C, Vicente J, De La Fuente J, Nugent G, Nol P 2015. Tuberculosis in pigs and wild boar. In: Mukundan H, Chambers MA, Waters WR, Larsen MH ed. Tuberculosis, leprosy and other mycobacterial diseases of man and animals: the many hosts of mycobacteria. Wallingford, U.K., CABI Publishing. Pp. 313-324. (Book Section, 2015)
  • Morgan D, Warburton B, Nugent G 2015. Aerial prefeeding followed by ground based toxic baiting for more efficient and acceptable poisoning of invasive small mammalian pests. PLoS ONE 10(7): e0134032. (Journal Article, 2015)
  • Whitford J, Rouco C, Tompkins D, Nugent G 2014. First direct estimate of the detection probability of bovine tuberculosis in possums by possum transmission. European Journal of Wildlife Research 60(5): 827-830. (Journal Article, 2014)
  • Nugent G, Cousins DV 2014. Zoonotic tuberculosis in Australia and New Zealand. In: Thoen CO, Steele JH, Kaneene JB ed. Zoonotic tuberculosis: Mycobacterium bovis and other pathogenic mycobacteria. 3rd ed. Chichester, U.K., Wiley. Pp. 221-234. (Book Section, 2014)
  • Sweetapple PJ, Ruscoe WA, Nugent G 2014. Dietary changes in response to population reduction in the possum Trichosurus vulpecula in New Zealand. Wildlife Research 40(7): 561-569. (Journal Article, 2014)
  • Nugent G, Yockney IJ, Whitford EJ, Cross ML 2014. Assessing the effectiveness of tuberculosis management in brushtail possums (Trichosurus vulpecula), through indirect surveillance of Mycobacterium bovis infection using released sentinel pigs. Veterinary Medicine International 2014: 361634. (Journal Article, 2014)
  • Ramón-Laca A, Gleeson D, Yockney I, Perry M, Nugent G, Forsyth D 2013. [Abstract] Reliable discrimination of ten ungulate species using high resolution melting analysis of faecal DNA. Proceedings: Australasian Wildlife Management Society Annual Conference, Palmerston North, New Zealand, 20-22 November 2013. Pp. 35. (Conference Proceedings, 2013)
  • Nugent G, Morriss GA 2013. Delivery of toxic bait in clusters: a modified technique for aerial poisoning of small mammal pests. New Zealand Journal of Ecology 37(2): 246-255. (Journal Article, 2013)
  • Nugent G, Warburton B, Morgan D, Sweetapple P, Morriss G 2013. Local elimination - a necessary stepping stone to dreams of national freedom from vertebrate pests. Kararehe Kino - Vertebrate Pest Research 21: 22. (Journal Article, 2013)
  • Yockney IJ, Nugent G, Latham MC, Perry M, Cross ML, Byrom AE 2013. Comparison of ranging behaviour in a multi-species complex of free-ranging hosts of bovine tuberculosis in relation to their use as disease sentinels. Epidemiology and Infection 141(7): 1407-1416. (Journal Article, 2013)
  • Holland EP, Pech RP, Ruscoe WA, Parkes JP, Nugent G, Duncan RP 2013. Thresholds in plant-herbivore interactions: predicting plant mortality due to herbivore browse damage. Oecologia 172: 751-766. (Journal Article, 2013)
  • Anderson DP, Ramsey DSL, Nugent G, Bosson M, Livingstone P, Martin PAJ, Sergeant E, Gormley AM, Warburton B 2013. A novel approach to assess the probability of disease eradication from a wild-animal reservoir host. Epidemiology and infection 141(7): 1509-1521. (Journal Article, 2013)
  • Nugent G, Whitford EJ, Yockney I, Perry M, Tompkins DM, Holtslag N, Cross ML 2013. Percutaneous interdigital injection of Mycobacterium bovis as a model for tuberculous lesion development in wild brushtail possums (Trichosurus vulpecula). Journal of comparative pathology 148(1): 33-42. (Journal Article, 2013)
  • Barron MC, Nugent G, Cross ML 2013. Importance and mitigation of the risk of spillback transmission of Mycobacterium bovis infection for eradication of bovine tuberculosis from wildlife in New Zealand. Epidemiology and Infection 141(7): 1394-1406. (Journal Article, 2013)
  • Nugent G, Yockney I, Whitford J, Cross ML 2013. Mortality rate and gross pathology due to tuberculosis in wild brushtail possums (Trichosurus vulpecula) following low dose subcutaneous injection of Mycobacterium bovis. Preventive veterinary medicine 109(1-2): 168-175. (Journal Article, 2013)
  • Tompkins DM, Buddle BM, Whitford J, Cross ML, Yates GF, Lambeth MR, Nugent G 2013. Sustained protection against tuberculosis conferred to a wildlife host by single dose oral vaccination. Vaccine 31(6): 893-899. (Journal Article, 2013)
  • Nugent G, Whitford J, Yockney IJ, Cross ML 2012. Reduced spillover transmission of Mycobacterium bovis to feral pigs (Sus scofa) following population control of brushtail possums (Trichosurus vulpecula). Epidemiology and Infection 140(6): 1036-1047. <Go to ISI>://WOS:000304007700010 (Journal Article, 2012)
  • Latham ADM, Nugent G, Warburton B 2012. Evaluation of camera traps for monitoring European rabbits before and after control operations in Otago, New Zealand. Wildlife research 39(7): 621-628. (Journal Article, 2012)
  • Jones C, Barron MC, Warburton B, Coleman M, Lyver P, Nugent G 2012. Can possum fur harvesters both make a living and help protect forest biodiversity? Kararehe Kino - Vertebrate Pest Research 20: 5-6. (Journal Article, 2012)
  • Nugent G, Warburton B, Thomson C, Cross ML, Coleman MC 2012. Bait aggregation to reduce cost and toxin use in aerial 1080 baiting of small mammal pests in New Zealand. Pest management science 68(10): 1374-1379. (Journal Article, 2012)
  • Nugent G, Twigg LE, Warburton B, McGlinchy A, Fisher P, Gormley AM, Parkes JP 2012. Why 0.02%? A review of the basis for current practice in aerial 1080 baiting for rabbits in New Zealand. Wildlife Research 39(2): 89-103. <Go to ISI>://WOS:000302323100001 (Journal Article, 2012)
  • Nugent G, Whitford E, Hunnam J, Wilson P, Cross M, de Lisle G 2011. Mycobacterium avium subsp. paratuberculosis infection in wildlife on three deer farms with a history of Johne's disease. New Zealand veterinary journal 59(6): 293-8. <Go to ISI>://MEDLINE:22040334 (Journal Article, 2011)



  • Associate Editor of European Journal of Wildlife Research (EJWR), European Journal of Wildlife Research (EJWR)
  • Invited Member National Bovine TB Pest Management Strategy Technical Advisory Group (Disease management), Animal Health Board



  • Animal Ecology
  • Ecology
  • Ecological Systems
  • Feasibility Studies
  • Pest Control Ecology
  • Project Management
  • Vertebrate Pest Modelling
  • Vertebrate Pest Ecology
  • Wildlife Ecology