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Ecology, management and conservation in natural and modified habitats
RESEARCH ARTICLE

Fox baiting in agricultural landscapes: preliminary findings on the importance of bait-site selection

Andrew Carter A and Gary W. Luck A B
+ Author Affiliations
- Author Affiliations

A Institute for Land, Water and Society; Charles Sturt University, PO Box 789, Albury, NSW 2640, Australia.

B Corresponding author. Email: galuck@csu.edu.au

Wildlife Research 40(3) 184-195 https://doi.org/10.1071/WR12169
Submitted: 27 February 2013  Accepted: 3 March 2013   Published: 28 March 2013

Abstract

Context: Little is known about the importance of bait-site selection during lethal fox-baiting programmes. Improved bait placement may increase the efficacy of baiting and help reduce fox impacts on wildlife and livestock.

Aims: To determine whether bait uptake by the red fox (Vulpes vulpes) differed among five landscape elements (roadsides, fence lines, open paddocks, creek lines and remnant vegetation) and at sites with high or low habitat (ground cover) complexity.

Methods: We measured bait uptake at 300 bait stations distributed evenly among the landscape elements in agricultural landscapes in northern Victoria, Australia. Bait uptake was also compared between sites with low and high habitat complexity in districts subject to no fox control and annual fox control.

Key results: Among landscape elements, bait uptake was significantly higher in roadside vegetation and along vegetated creek lines than it was along fence lines and in open paddocks (P < 0.05 in each case). Within roadside vegetation, bait uptake was significantly (P = 0.001) lower at sites with a high habitat complexity than at sites with low complexity, particularly in areas subject to annual fox control.

Conclusions: Bait placement influences bait-uptake rates considerably and greater consideration should be placed on bait-site selection during fox-baiting programmes. Habitat complexity limited bait uptake, which may indicate a reduced capacity of foxes to find baits in complex habitats.

Implications: Our results should help improve bait-site selection in agricultural landscapes and may increase the efficacy of fox baiting to the benefit of native fauna and livestock.


References

Adkins, C. A., and Stott, P. (1998). Home ranges, movements and habitat associations of red foxes Vulpes vulpes in suburban Toronto, Ontario, Canada. Journal of Zoology 244, 335–346.
Home ranges, movements and habitat associations of red foxes Vulpes vulpes in suburban Toronto, Ontario, Canada.Crossref | GoogleScholarGoogle Scholar |

Akaike, H. (1974). A new look at the statistical model identification. IEEE Transactions on Automatic Control 19, 716–723.
A new look at the statistical model identification.Crossref | GoogleScholarGoogle Scholar |

Algar, D., and Kinnear, J. E. (1990). Cyanide baiting to sample fox populations and measure changes in relative abundance. In ‘Wildlife Rabies Contingency Planning in Australia’. (Eds P. O’Brien and G. Berry.) pp. 135–138. (Australian Government Printing Service: Canberra.)

Allen, L. R., Fleming, P. J. S., Thompson, J. A., and Strong, K. (1989). Effect of presentation on the attractiveness and palatability to wild dogs and other wildlife of two unpoisioned wild-dog bait types. Australian Wildlife Research 16, 593–598.
Effect of presentation on the attractiveness and palatability to wild dogs and other wildlife of two unpoisioned wild-dog bait types.Crossref | GoogleScholarGoogle Scholar |

Andruskiw, M., Fryxell, J. M., Thompson, I. D., and Baker, J. A. (2008). Habitat-mediated variation in predation risk by the American marten. Ecology 89, 2273–2280.
Habitat-mediated variation in predation risk by the American marten.Crossref | GoogleScholarGoogle Scholar |

Arthur, A. D., Pech, R. P., Drew, A., Gifford, E., Henry, S., and McKeown, A. (2003). The effect of increased ground-level habitat complexity on mouse population dynamics. Wildlife Research 30, 565–572.
The effect of increased ground-level habitat complexity on mouse population dynamics.Crossref | GoogleScholarGoogle Scholar |

Banks, P. B. (1997). Predator–prey interactions between foxes, rabbits and native mammals of the Australian Alps. Ph.D. Thesis. University of Sydney.

Banks, P. B. (2000). Can foxes regulate rabbit populations? The Journal of Wildlife Management 64, 401–406.
Can foxes regulate rabbit populations?Crossref | GoogleScholarGoogle Scholar |

Berry, O., Algar, D., Angus, J., Hamilton, N., Hilmer, S., and Sutherland, D. (2012). Genetic tagging reveals a significant impact of poison baiting on an invasive species. The Journal of Wildlife Management 76, 729–739.
Genetic tagging reveals a significant impact of poison baiting on an invasive species.Crossref | GoogleScholarGoogle Scholar |

Bertellotti, M., and Yorio, P. (2000). Age-related feeding behaviour and foraging efficiency in kelp gulls Larus dominicanus attending coastal trawlers in Argentina. Ardea 88, 207–214.

Blanchet, F. G., Legendre, P., and Borcard, D. (2008). Forward selection of explanatory variables. Ecology 89, 2623–2632.
Forward selection of explanatory variables.Crossref | GoogleScholarGoogle Scholar |

Buckland, S. T., Burnham, K. P., and Augustin, N. H. (1997). Model selection: an integral part of inference. Biometrics 53, 603–618.
Model selection: an integral part of inference.Crossref | GoogleScholarGoogle Scholar |

Burnham, K. P., and Anderson, D. R. (2001). Kullback-Leibler information as a basis for strong inference in ecological studies. Wildlife Research 28, 111–119.
Kullback-Leibler information as a basis for strong inference in ecological studies.Crossref | GoogleScholarGoogle Scholar |

Burnham, K. P., and Anderson, D. R. (2002). ‘Model Selection and Multimodel Inference: a Practical Information-theoretic Approach.’ 2nd edn. (Springer: New York.)

Carter, A. (2010). Improving red fox (Vulpes vulpes) management for bush stone-curlew (Burhinus grallarius) conservation in south-eastern Australia. Ph.D. Thesis. Charles Sturt University.

Carter, A., Luck, G. W., and McDonald, S. P. (2011). Fox-baiting in agricultural landscapes in south-eastern Australia: a case-study appraisal and suggestions for improvement. Ecological Management & Restoration 12, 214–223.
Fox-baiting in agricultural landscapes in south-eastern Australia: a case-study appraisal and suggestions for improvement.Crossref | GoogleScholarGoogle Scholar |

Carter, A., Luck, G. W., and McDonald, S. P. (2012). Ecology of the red fox (Vulpes vulpes) in an agricultural landscape. 2. Home range and movements. Australian Mammalogy 34, 175–187.
Ecology of the red fox (Vulpes vulpes) in an agricultural landscape. 2. Home range and movements.Crossref | GoogleScholarGoogle Scholar |

Claridge, A. W., and Mills, D. J. (2007). Aerial baiting for wild dogs has no observable impact on spotted-tailed quolls (Dasyurus maculatus) in a rainshadow woodland. Wildlife Research 34, 116–124.
Aerial baiting for wild dogs has no observable impact on spotted-tailed quolls (Dasyurus maculatus) in a rainshadow woodland.Crossref | GoogleScholarGoogle Scholar |

Coutts-Smith, A. J., Mahon, P. S., Letnic, M., and Downey, P. O. (2007). ‘The Threat Posed by Pest Animals to Biodiversity in New South Wales.’ (Invasive Animals Cooperative Research Centre: Canberra.)

DEC NSW (2006). ‘NSW Recovery Plan for the Bush Stone-curlew Burhinus grallarius.’ (Department of Environment and Conservation NSW: Sydney.)

Dexter, N., and Meek, P. (1998). An analysis of bait-take and non-target impacts during a fox-control exercise. Wildlife Research 25, 147–155.
An analysis of bait-take and non-target impacts during a fox-control exercise.Crossref | GoogleScholarGoogle Scholar |

Garretson, S., Hill, R., Bloomfield, L., Strümpher, L., Berry, O., and de Tores, P. (2008). Development and field application of a new device for collection of fox and cat hair in a forest environment. In ‘21st Australasian Wildlife Management Society Conference’. (Ed. A. S. Glen.) p. 111. (Western Australian Government: Fremantle, WA.)

Gates, J. A., and Paton, D. C. (2005). The distribution of bush stone-curlews (Burhinus grallarius) in South Australia, with particular reference to Kangaroo Island. Emu 105, 241–247.
The distribution of bush stone-curlews (Burhinus grallarius) in South Australia, with particular reference to Kangaroo Island.Crossref | GoogleScholarGoogle Scholar |

Gauch, H. G. (2003). ‘Scientific Method in Practice.’ (Cambridge University Press: New York.)

Gentle, M. N. (2005). Factors affecting the efficiency of fox (Vulpes vulpes) baiting practices on the Central Tablelands of New South Wales. Ph.D. Thesis. University of Sydney.

Gong, W., Sinden, J., Braysher, M., and Jones, R. (2009). ‘The Economic Impacts of Vertebrate Pests in Australia.’ (Invasive Animals Cooperative Research Centre: Canberra.)

Goss-Custard, J. D., and Le V. Dit Durell, S. E. A. (1987). Age-related effects in oystercatchers, Haematopus ostralegus, feeding on mussels, Mytilus edulis. I. Foraging efficiency and interference. Journal of Animal Ecology 56, 521–536.
Age-related effects in oystercatchers, Haematopus ostralegus, feeding on mussels, Mytilus edulis. I. Foraging efficiency and interference.Crossref | GoogleScholarGoogle Scholar |

Greentree, C., Saunders, G., McLeod, L., and Hone, J. (2000). Lamb predation and fox control in south-eastern Australia. Journal of Applied Ecology 37, 935–943.
Lamb predation and fox control in south-eastern Australia.Crossref | GoogleScholarGoogle Scholar |

Gürtler, W., and Zimen, E. (1982). The use of baits to estimate fox numbers. Comparative Immunology, Microbiology and Infectious Diseases 5, 277–283.
The use of baits to estimate fox numbers.Crossref | GoogleScholarGoogle Scholar |

Harris, S. (1977). Distribution, habitat utilization and age structure of a suburban fox (Vulpes vulpes) population. Mammal Review 7, 25–39.
Distribution, habitat utilization and age structure of a suburban fox (Vulpes vulpes) population.Crossref | GoogleScholarGoogle Scholar |

Hebblewhite, M., Merrill, E. H., and McDonald, T. L. (2005). Spatial decomposition of predation risk using resource selection functions: an example in a wolf–elk predator–prey system. Oikos 111, 101–111.
Spatial decomposition of predation risk using resource selection functions: an example in a wolf–elk predator–prey system.Crossref | GoogleScholarGoogle Scholar |

Hemminga, M. A., and Duarte, C. M. (2000). ‘Seagrass Ecology: an Introduction.’ (Cambridge University Press: Cambridge, UK.)

Hopcraft, J. G. C., Sinclair, A. R. E., and Packer, C. (2005). Planning for success: Serengeti lions seek prey accessibility rather than abundance. Journal of Animal Ecology 74, 559–566.
Planning for success: Serengeti lions seek prey accessibility rather than abundance.Crossref | GoogleScholarGoogle Scholar |

Jackson, W., Fowler, R., Trautman, C., Carter, A., Rice, L., and Kranz, J. (1975). ‘The Pheasant in South Dakota.’ (South Dakota Department of Game, Fish and Parks.)

Jackson, J., Moro, D., Mawson, P., Lund, M., and Mellican, A. (2007). Bait uptake and caching by red foxes and nontarget species in urban reserves. The Journal of Wildlife Management 71, 1134–1140.
Bait uptake and caching by red foxes and nontarget species in urban reserves.Crossref | GoogleScholarGoogle Scholar |

Johnson, G., and Baker-Gabb, D. (1994). ‘The Bush Thick-knee in Northern Victoria (Part 1): Conservation and Management.’ (Department of Conservation and Natural Resources: Melbourne.)

Kauffman, M. J., Varley, N., Smith, D. W., Stahler, D. R., MacNulty, D. R., and Boyce, M. S. (2007). Landscape heterogeneity shapes predation in a newly restored predator–prey system. Ecology Letters 10, 690–700.
Landscape heterogeneity shapes predation in a newly restored predator–prey system.Crossref | GoogleScholarGoogle Scholar |

Kinnear, P. R., and Gray, C. D. (2008). ‘SPSS 15 Made Simple.’ (Psychology Press: Hove, UK.)

Körtner, G., and Watson, P. (2005). The immediate impact of 1080 aerial baiting to control wild dogs on a spotted-tailed quoll population. Wildlife Research 32, 673–680.
The immediate impact of 1080 aerial baiting to control wild dogs on a spotted-tailed quoll population.Crossref | GoogleScholarGoogle Scholar |

Kubeil, T., and Castles, J. (2007). ‘Broken–Boosey Fox Control Project: Three-year Review.’ (Goulburn-Broken Catchment Management Authority: Shepparton, Vic.)

Mahon, P. S. (2009). Targeted control of widespread exotic species for biodiversity conservation: the red fox (Vulpes vulpes) in New South Wales, Australia. Ecological Management & Restoration 10, S59–S69.
Targeted control of widespread exotic species for biodiversity conservation: the red fox (Vulpes vulpes) in New South Wales, Australia.Crossref | GoogleScholarGoogle Scholar |

Manatunge, J., Asaeda, T., and Priyadarshana, T. (2000). The influence of structural complexity on fish–zooplankton interactions: a study using artificial submerged macrophytes. Environmental Biology of Fishes 58, 425–438.
The influence of structural complexity on fish–zooplankton interactions: a study using artificial submerged macrophytes.Crossref | GoogleScholarGoogle Scholar |

Marchant, S., and Higgins, P. J. (Eds) (1993). ‘Handbook of Australian, New Zealand and Antarctic Birds. Vol. 2.’ (Oxford University Press: Melbourne.)

Marks, C. A., and Bloomfield, T. E. (1999). Bait uptake by foxes (Vulpes vulpes) in urban Melbourne: the potential of oral vaccination for rabies control. Wildlife Research 26, 777–787.
Bait uptake by foxes (Vulpes vulpes) in urban Melbourne: the potential of oral vaccination for rabies control.Crossref | GoogleScholarGoogle Scholar |

Marks, C. A., and Bloomfield, T. E. (2006). Home range size and selection of natal den and diurnal shelter sites by urban red foxes (Vulpes vulpes) in Melbourne. Wildlife Research 33, 339–347.
Home range size and selection of natal den and diurnal shelter sites by urban red foxes (Vulpes vulpes) in Melbourne.Crossref | GoogleScholarGoogle Scholar |

Marks, C. A., Busana, F., and Gigliotti, F. (1999). Assessment of the M-44 ejector for the delivery of 1080 for red fox (Vulpes vulpes) control. Wildlife Research 26, 101–109.
Assessment of the M-44 ejector for the delivery of 1080 for red fox (Vulpes vulpes) control.Crossref | GoogleScholarGoogle Scholar |

Marks, C. A., Gigliotti, F., and Busana, F. (2003). Field performance of the M-44 ejector for red fox (Vulpes vulpes) control. Wildlife Research 30, 601–609.
Field performance of the M-44 ejector for red fox (Vulpes vulpes) control.Crossref | GoogleScholarGoogle Scholar |

Marks, C. A., Gigliotti, F., Busana, F., Johnston, M., and Lindeman, M. (2004). Fox control using a para-aminopropiophenone formulation with the M-44 ejector. Animal Welfare 13, 401–407.
| 1:CAS:528:DC%2BD2cXpvVChu7c%3D&md5=43f89d6f3e43fb346fbfb9eec9eb76d7CAS |

Marks, C. A., Gigliotti, F., McPhee, S., Piggott, M. P., Taylor, A., and Glen, A. S. (2009). DNA genotypes reveal red fox (Vulpes vulpes) abundance, response to lethal control and limitations of contemporary survey techniques. Wildlife Research 36, 647–658.
DNA genotypes reveal red fox (Vulpes vulpes) abundance, response to lethal control and limitations of contemporary survey techniques.Crossref | GoogleScholarGoogle Scholar |

Marlow, N. J. (1992). The ecology of the introduced red fox (Vulpes vulpes) in the arid zone. Ph.D. Thesis. University of New South Wales.

Maurel, D. (1983). Movements and space utilization in the fox (Vulpes vulpes) as studied by radiotracking in the forest of Chizé. In ‘XV Congress International Fauna Cinegética y Silvestre’. (Eds E. B. d. Doňana and F. E. d. Caza) pp. 421–433. (Trujillo, Spain.)

McIlroy, J. C., Gifford, E. J., and Carpenter, S. M. (1988). The effect of rainfall and blowfly larvae on the toxicity of 1080 treated meat baits used in poisoning campaigns against wild dogs. Australian Wildlife Research 15, 473–483.
The effect of rainfall and blowfly larvae on the toxicity of 1080 treated meat baits used in poisoning campaigns against wild dogs.Crossref | GoogleScholarGoogle Scholar |

Meek, P. D. (1998). The biology of the European red fox and the free roaming dog on Bherwerre Peninsula, Jervis Bay. M.App.Sc. Thesis. University of Canberra.

Meek, P. D., and Saunders, G. (2000). Home range and movement of foxes (Vulpes vulpes) in coastal New South Wales, Australia. Wildlife Research 27, 663–668.
Home range and movement of foxes (Vulpes vulpes) in coastal New South Wales, Australia.Crossref | GoogleScholarGoogle Scholar |

Moseby, K. E., Stott, J., and Crisp, H. (2009). Movement patterns of feral predators in an arid environment – implications for control through poison baiting. Wildlife Research 36, 422–435.
Movement patterns of feral predators in an arid environment – implications for control through poison baiting.Crossref | GoogleScholarGoogle Scholar |

Phillips, M., and Catling, P. C. (1991). Home range and activity patterns of red foxes in Nadgee Nature Reserve. Wildlife Research 18, 677–686.
Home range and activity patterns of red foxes in Nadgee Nature Reserve.Crossref | GoogleScholarGoogle Scholar |

Ramp, D., Wilson, V. K., and Croft, D. B. (2006). Assessing the impacts of roads in peri-urban reserves: road-based fatalities and road usage by wildlife in the Royal National Park, New South Wales, Australia. Biological Conservation 129, 348–359.
Assessing the impacts of roads in peri-urban reserves: road-based fatalities and road usage by wildlife in the Royal National Park, New South Wales, Australia.Crossref | GoogleScholarGoogle Scholar |

Roberts, M. W., Dexter, N., Meek, P. D., Hudson, M., and Buttemer, W. A. (2006). Does baiting influence the relative composition of the diet of foxes? Wildlife Research 33, 481–488.
Does baiting influence the relative composition of the diet of foxes?Crossref | GoogleScholarGoogle Scholar |

Ruette, S., Stahl, P., and Albaret, M. (2003). Applying distance-sampling methods to spotlight counts of red foxes. Journal of Applied Ecology 40, 32–43.
Applying distance-sampling methods to spotlight counts of red foxes.Crossref | GoogleScholarGoogle Scholar |

Saunders, G., and McLeod, L. (2007). ‘Improving Fox Management Strategies in Australia.’ (Bureau of Rural Sciences: Canberra.)

Saunders, G., Coman, B., Kinnear, J., and Braysher, M. (1995). ‘Managing Vertebrate Pests: Foxes.’ (Australian Government Publishing Service: Canberra.)

Saunders, G., White, P. C. L., and Harris, S. (1997). Habitat utilisation by urban foxes (Vulpes vulpes) and the implications for rabies control. Mammalia 61, 497–510.

Saunders, G., Kay, B., and McLeod, L. (1999). Caching of baits by foxes (Vulpes vulpes) on agricultural lands. Wildlife Research 26, 335–340.
Caching of baits by foxes (Vulpes vulpes) on agricultural lands.Crossref | GoogleScholarGoogle Scholar |

Saunders, G., McLeod, S., and Kay, B. (2000). Degradation of sodium monofluoroacetate (1080) in buried fox baits. Wildlife Research 27, 129–135.
Degradation of sodium monofluoroacetate (1080) in buried fox baits.Crossref | GoogleScholarGoogle Scholar |

Saunders, G. R., Gentle, M. N., and Dickman, C. R. (2010). The impacts and management of foxes Vulpes vulpes in Australia. Mammal Review 40, 181–211.
The impacts and management of foxes Vulpes vulpes in Australia.Crossref | GoogleScholarGoogle Scholar |

Seymour, A. S., Harris, S., and White, P. C. L. (2004). Potential effects of reserve size on incidental nest predation by red foxes Vulpes vulpes. Ecological Modelling 175, 101–114.
Potential effects of reserve size on incidental nest predation by red foxes Vulpes vulpes.Crossref | GoogleScholarGoogle Scholar |

Shalaway, S. D. (1985). Fencerow management for nesting birds in Michigan. Wildlife Society Bulletin 13, 302–306.

Smith, R. D., and Metcalfe, N. B. (1997). Where and when to feed: sex and experience affect access to food in wintering snow buntings. Behaviour 134, 143–160.
Where and when to feed: sex and experience affect access to food in wintering snow buntings.Crossref | GoogleScholarGoogle Scholar |

Tabachnick, B. G., and Fidell, L. S. (2007). ‘Using Multivariate Statistics.’ 5th edn. (Pearson: Boston, MA.)

Thompson, J. A., and Fleming, P. J. S. (1994). Evaluation of the efficacy of 1080 poisoning of red foxes using visitation to non-toxic baits as an index of fox abundance. Wildlife Research 21, 27–39.
Evaluation of the efficacy of 1080 poisoning of red foxes using visitation to non-toxic baits as an index of fox abundance.Crossref | GoogleScholarGoogle Scholar |

Thompson, I. D., and Harestad, A. S. (1994). Effects of logging on American martens and models for habitat management. In ‘Martens, Sables and Fishers: Biology and Conservation’. (Eds S. W. Buskirk, A. S. Harestad, M. G. Raphael and R. A. Powell.) pp. 355–367. (Cornell University Press: London.)

Thomson, P. C., and Kok, N. E. (2002). The fate of dried meat baits laid for fox control: the effects of bait presentation on take by foxes and non-target species, and on caching by foxes. Wildlife Research 29, 371–377.
The fate of dried meat baits laid for fox control: the effects of bait presentation on take by foxes and non-target species, and on caching by foxes.Crossref | GoogleScholarGoogle Scholar |

Thomson, P. C., Marlow, N. J., Rose, K., and Kok, N. E. (2000). The effectiveness of a large-scale baiting campaign and an evaluation of a buffer zone strategy for fox control. Wildlife Research 27, 465–472.
The effectiveness of a large-scale baiting campaign and an evaluation of a buffer zone strategy for fox control.Crossref | GoogleScholarGoogle Scholar |

Towerton, A. L., Penman, T. D., Kavanagh, R. P., and Dickman, C. R. (2011). Detecting pest and prey responses to fox control across the landscape using remote cameras. Wildlife Research 38, 208–220.
Detecting pest and prey responses to fox control across the landscape using remote cameras.Crossref | GoogleScholarGoogle Scholar |

Trewhella, W. J., Harris, S., Smith, G. C., and Nadian, A. K. (1991). A field trial evaluating bait uptake by an urban fox (Vulpes vulpes) population. Journal of Applied Ecology 28, 454–466.
A field trial evaluating bait uptake by an urban fox (Vulpes vulpes) population.Crossref | GoogleScholarGoogle Scholar |

van Polanen Petel, A. M., Marks, C. A., and Morgan, D. G. (2001). Bait palatability influences the caching behaviour of the red fox (Vulpes vulpes). Wildlife Research 28, 395–401.
Bait palatability influences the caching behaviour of the red fox (Vulpes vulpes).Crossref | GoogleScholarGoogle Scholar |

West, P., and Saunders, G. (2007). ‘Pest Animal Survey: A Review of the Distribution, Impacts and Control of Invasive Animals Throughout NSW and the ACT.’ (NSW Department of Primary Industries: Orange, NSW.)

White, J. G., Gubiani, R., Smallman, N., Snell, K., and Morton, A. (2006). Home range, habitat selection and diet of foxes (Vulpes vulpes) in a semi-urban riparian environment. Wildlife Research 33, 175–180.
Home range, habitat selection and diet of foxes (Vulpes vulpes) in a semi-urban riparian environment.Crossref | GoogleScholarGoogle Scholar |

Wong, D. H., Kirkpatrick, W. E., Kinnear, J. E., and King, D. R. (1991). Defluorination of sodium monofluoroacetate (1080) by microorganisms found in bait materials. Wildlife Research 18, 539–545.
Defluorination of sodium monofluoroacetate (1080) by microorganisms found in bait materials.Crossref | GoogleScholarGoogle Scholar |

Woodford, L. P., Robley, A., Maloney, P., and Reside, J. (2012). The impact of 1080 bait removal by lace monitors (Varanus varius) on a red fox (Vulpes vulpes) control programme. Ecological Management & Restoration 13, 306–308.
The impact of 1080 bait removal by lace monitors (Varanus varius) on a red fox (Vulpes vulpes) control programme.Crossref | GoogleScholarGoogle Scholar |