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Australian Mammalogy Australian Mammalogy Society
Journal of the Australian Mammal Society
REVIEW

Fox control and 1080 baiting conundrums: time to prepare for a CRISPR solution

J. E. Kinnear A E , C. Pentland B , N. Moore C and C. J. Krebs D
+ Author Affiliations
- Author Affiliations

A 9 Valley Road, Wembley Downs, WA 6019, Australia.

B School of Natural Sciences, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA 6027, Australia.

C Department of Parks and Wildlife (DPaW), PO Box 332, Merredin, WA 6419, Australia.

D Institute for Applied Ecology, University of Canberra, Canberra, ACT 2601, Australia.

E Corresponding author. Email: jakinn2@bigpond.com

Australian Mammalogy 39(2) 127-136 https://doi.org/10.1071/AM16020
Submitted: 17 October 2015  Accepted: 21 September 2016   Published: 21 October 2016

Abstract

For many years, managing rock-wallaby colonies (Petrogale lateralis lateralis) in the Western Australian Wheatbelt seemed to be a matter of routinely exposing foxes (Vulpes vulpes) to toxic baits (sodium fluoroacetate, 1080®) laid around their rocky outcrops. Recent research has revealed that 1080 baitings are no longer a viable management option. Baiting is flawed over the long term because it does not erase the wallabies’ pervasive fear of being depredated by foxes, which can still make their menacing presence felt before succumbing to poison bait. Accordingly, a ‘landscape of fear’ exists on all rock-wallaby sites, creating a ‘virtual boundary’ beyond which they fear to forage. Severe overgrazing occurs, ultimately causing population crashes, leaving behind devastated outcrops greatly diminished in carrying capacity. The fallout from this scenario produces a management conundrum. Rock-wallaby populations are unstable in the absence of fox control, and conversely, they are also unstable under long-term fox control. Management is now left with few options, and the future of the colonies remains open. Other conundrums involving bait interference and mesopredator release are described. An alternative to 1080 baiting is clearly needed. Recent developments in gene engineering (CRISPR technology) offer a solution in the foreseeable future.

Additional keywords: 1080 predator control shortcomings, adaptive management, CRISPRCas9, gene-drives, predation, direct and indirect effects, rock-wallabies, top-down and bottom-up limiting factors.


References

Alberts, B., Johnson, A., Lewis, J., Morgan, D., Raff, M., Roberts, K., and Walter, P. (2015). ‘The Molecular Biology of the Cell.’ 6th edn. (Garland Science, UK).

Allen, B., Fleming, P., Engeman, R., Ballard, G., and Leung, I. K.-P. (2013). As clear as mud: a critical review of the evidence for the ecological role of Australian dingoes. Biological Conservation 159, 158–174.
As clear as mud: a critical review of the evidence for the ecological role of Australian dingoes.Crossref | GoogleScholarGoogle Scholar |

Bakker, H. R., Bradshaw, S. D., and Main, A. R. (1982). Water and electrolyte metabolism of the tammar wallaby (Macropus eugenii). Physiological Zoology 55, 209–219.
Water and electrolyte metabolism of the tammar wallaby (Macropus eugenii).Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaL38XlsVantbo%3D&md5=6440bcf86007e140779da5ec290b0d27CAS |

Berger-Tal, O., and Kotler, B. P. (2010). State of emergency: behavior of gerbils is affected by the hunger state of their predators. Ecology 91, 593–600.
State of emergency: behavior of gerbils is affected by the hunger state of their predators.Crossref | GoogleScholarGoogle Scholar | 20392023PubMed |

Biello, D. (2016). Genetic resurrection. Scientific American 315, 10–13.
Genetic resurrection.Crossref | GoogleScholarGoogle Scholar | 27459552PubMed |

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. (2013). Examining interactions between dingoes (wild dogs) and mesopredators: the need for caution when interpreting summary data from previously published work. Australian Mammalogy 35, 248–250.
Examining interactions between dingoes (wild dogs) and mesopredators: the need for caution when interpreting summary data from previously published work.Crossref | GoogleScholarGoogle Scholar |

Coman, B. J., Robinson, J., and Beaumont, C. (1991). Home range, dispersal and density of red foxes (Vulpes vulpes L.) in central Victoria. Wildlife Research 18, 215–223.
Home range, dispersal and density of red foxes (Vulpes vulpes L.) in central Victoria.Crossref | GoogleScholarGoogle Scholar |

Creel, S., and Christianson, D. (2008). Relationships between direct predation and risk effects. Trends in Ecology & Evolution 23, 194–201.
Relationships between direct predation and risk effects.Crossref | GoogleScholarGoogle Scholar |

Dundas, S. J., Adams, P. J., and Fleming, P. A. (2014). First in, first served: uptake of 1080 poison baits in south-west Western Australia. Wildlife Research 41, 117–126.
First in, first served: uptake of 1080 poison baits in south-west Western Australia.Crossref | GoogleScholarGoogle Scholar |

Eldridge, M. D. B., King, J. M., Loupis, A. K., Spencer, P. B. S., Taylor, A. C., Pope, L. C., and Hall, G. P. (1999). Unprecedented low levels of genetic variation and inbreeding depression in an island population of the black-footed rock-wallaby. Conservation Biology 13, 531–541.
Unprecedented low levels of genetic variation and inbreeding depression in an island population of the black-footed rock-wallaby.Crossref | GoogleScholarGoogle Scholar |

Eldridge, M. D. R., Kinnear, J. E., and Onus, M. L. (2001). Source population of dispersing rock-wallabies (Petrogale lateralis) identified by assignment tests on multilocus genotype data. Molecular Ecology 10, 2867–2876.
Source population of dispersing rock-wallabies (Petrogale lateralis) identified by assignment tests on multilocus genotype data.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD387nslOlug%3D%3D&md5=4b8aa4f8432aa0d6a961f08aa189a781CAS |

Esvelt, K., Church, G., and Lunshof, J. (2014a). “Gene Drives” and CRISPR could revolutionise ecosystem management. Scientific American. Available at: http:/blogs.scientificamerican.com/guest-blog/gene-drives-and-crispr-could-revolutionize-ecosystem-management [accessed 10 October 2016].

Esvelt, K. M., Smidler, A. L., Catteruccia, F., and Church, G. M. (2014b). Emerging technology: concerning RNA-guided gene drives for the alteration of wild populations. Elife 2014, e03401.

Fleming, P. J. S., Allen, B. J., and Ballard, A. (2012). Seven considerations about dingoes as biodiversity engineers: the socioecological niches of dogs in Australia. Australian Mammalogy 34, 119–131.
Seven considerations about dingoes as biodiversity engineers: the socioecological niches of dogs in Australia.Crossref | GoogleScholarGoogle Scholar |

Frankham, R., Ballou, J. D., and Briscoe, D. A. (2013). ‘Introduction to Conservation Genetics.’ 2nd edn. (Cambridge University Press: Cambridge.)

Friend, J. A. (1990). The numbat (Myrmecobious fasciata), Myrmecobidae: history of decline and potential for recovery. Proceedings of the Ecological Society of Australia 16, 369–377.

Ginzburg, L. R., and Krebs, C. J. (2015). Mammalian cycles: internally defined periods and interaction-driven amplitudes. PeerJ 3, e1180.
Mammalian cycles: internally defined periods and interaction-driven amplitudes.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC287psVOhsg%3D%3D&md5=10084bf44717c2a31b58de24550cfbe5CAS | 26339557PubMed |

Hall, S. S. (2016). Editing the mushroom. Scientific American 314, 56–63.
Editing the mushroom.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC28XivVCmt7Y%3D&md5=44f4bfb189c54c81dd15d92479e788daCAS | 27066645PubMed |

Hayward, M. W., and Marlow, N. (2014). Will dingoes really conserve wildlife and can our methods tell? Journal of Applied Ecology 51, 835–838.
Will dingoes really conserve wildlife and can our methods tell?Crossref | GoogleScholarGoogle Scholar |

Jinek, M., Chylinski, K., Fonfara, I., Hauer, M., Doudna, J. A., and Charpentier, E. (2012). A programmable dual-RNA-guided DNA endonuclease in adaptive bacterial immunity. Science 337, 816–821.
A programmable dual-RNA-guided DNA endonuclease in adaptive bacterial immunity.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38XhtFOqsb3L&md5=7f00cf46a11b8b45c543e4591f256630CAS | 22745249PubMed |

Johnson, J. A., Altwegg, R., Evans, D. M., Ewen, J. G., Gordon, I. J., Pettorelli, N., and Young, J. K. (2016). Is there a future for genome-editing technologies in conservation? Animal Conservation 19, 97–101.
Is there a future for genome-editing technologies in conservation?Crossref | GoogleScholarGoogle Scholar |

Kinnear, J. E., Onus, M. L., and Bromilow, R. N. (1988). Fox control and rock-wallaby population dynamics. Australian Wildlife Research 15, 435–450.
Fox control and rock-wallaby population dynamics.Crossref | GoogleScholarGoogle Scholar |

Kinnear, J. E., Onus, M. L., and Sumner, N. R. (1998). Fox control and rock-wallaby population dynamics II: an update. Wildlife Research 25, 81–88.
Fox control and rock-wallaby population dynamics II: an update.Crossref | GoogleScholarGoogle Scholar |

Kinnear, J. E., Sumner, N. R., and Onus, M. L. (2002). The red fox in Australia – an exotic predator turned biocontrol agent. Biological Conservation 108, 335–359.
The red fox in Australia – an exotic predator turned biocontrol agent.Crossref | GoogleScholarGoogle Scholar |

Kinnear, J. E., Krebs, C. J., Pentland, C., Orell, P., Holme, C., and Karvinen, R. (2010). Predator-baiting experiments for the conservation of rock-wallabies in Western Australia: a 25-year review with recent advances. Wildlife Research 37, 57–67.
Predator-baiting experiments for the conservation of rock-wallabies in Western Australia: a 25-year review with recent advances.Crossref | GoogleScholarGoogle Scholar |

Krebs, C. J. (1999). ‘Ecological Methodology’ 2nd edn. (Addison-Wesley Longman: California, USA).

Laundré, J. W., Hernández, L., Medina, P. L., Campanella, A., López-Portillo, J., González-Romero, A., Grajales-Tam, K. M., Burke, A. M., Gronemeyer, P., and Browning, D. M. (2014). The landscape of fear: the missing link to understand top-down and bottom-up controls of prey abundance? Ecology 95, 1141–1152.
The landscape of fear: the missing link to understand top-down and bottom-up controls of prey abundance?Crossref | GoogleScholarGoogle Scholar | 25000746PubMed |

Le Page, M. (2015). Editing life: A guide to the genetic revolution on our doorstep. New Scientist Magazine 3050 (5 December), 32–37.

Lindenmayer, D. B., Likens, G. E., Haywood, A., and Miezis, L. (2011). Adaptive monitoring in the real world: proof of concept. Trends in Ecology & Evolution 26, 641–646.
Adaptive monitoring in the real world: proof of concept.Crossref | GoogleScholarGoogle Scholar |

Marlow, N. J., Thomas, N. D., Williams, A. E., Macmahon, B., Lawson, J., Hitchen, Y., Angus, M., and Berry, O. (2015a). Cats (Felis catus) are more abundant and are the dominant predator of woylies (Bettongia penicillata) after sustained fox (Vulpes vulpes) control. Australian Journal of Zoology 63, 18–27.
Cats (Felis catus) are more abundant and are the dominant predator of woylies (Bettongia penicillata) after sustained fox (Vulpes vulpes) control.Crossref | GoogleScholarGoogle Scholar |

Marlow, N. J., Williams, A., Brazell, R., MacMahon, B., Withnell, B., Thomas, N., Hamilton, N., Fuller, P., and Asher, J. (2015b). The development of a toxic 1080 bait, Pro-bait, for fox control (Vulpes vulpes) in Western Australia. Conservation Science Western Australia 9, 249–257.

McCauley, S. J., Rowe, L., and Fortin, M. J. (2011). The deadly effects of “nonlethal” predators. Ecology 92, 2043–2048.
The deadly effects of “nonlethal” predators.Crossref | GoogleScholarGoogle Scholar | 22164828PubMed |

Miller, P. (2014). News, The Innovators Project: George Church, The Future Without Limits. , .
| 25985594PubMed |

Miller, S. J., Bencini, R., and Hartmann, P. E. (2010). Consumption of milk by quokka (Setonix brachyurus) young. Australian Journal of Zoology 58, 121–126.
Consumption of milk by quokka (Setonix brachyurus) young.Crossref | GoogleScholarGoogle Scholar |

Moseby, K. E., Neilly, H., Read, J. L., and Crisp, H. A. (2012). Interactions between top order predators and exotic mesopredators in Australian rangelands. International Journal of Ecology 2012, 1–15.
Interactions between top order predators and exotic mesopredators in Australian rangelands.Crossref | GoogleScholarGoogle Scholar |

Nimmo, D. G., Watson, S. J., Forsyth, D. M., and Bradshaw, C. J.-A. (2015). Dingoes can help conserve wildlife and our methods can tell. Journal of Applied Ecology 52, 281–285.
Dingoes can help conserve wildlife and our methods can tell.Crossref | GoogleScholarGoogle Scholar |

Pentland, C. (2014). Behavioral ecology of the black-flanked rock-wallaby (Petrogale lateralis lateralis); refuge importance in a variable environment. Ph.D Thesis, Edith Cowan University, Perth.

Regalado, A. (2015). The next great GMO debate. MIT Technology Review 118, 25–30.

Saey, T. H. (2015). Gene Drives spread their wings. Science News 188, 1–14.

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

Sheriff, M. J., Krebs, C. J., and Boonstra, R. (2011). From process to pattern: how fluctuating predation risk impacts the stress of snowshoe hares during the 10-year cycle. Oecologia 166, 593–605.
From process to pattern: how fluctuating predation risk impacts the stress of snowshoe hares during the 10-year cycle.Crossref | GoogleScholarGoogle Scholar | 21246218PubMed |

Sheriff, M. J., McMahon, E., Krebs, C. J., and Boonstra, R. (2015). Predator-induced maternal stress and population demography in snowshoe hares: the more severe the risk, the longer the generational effect. Journal of Zoology 296, 305–310.
Predator-induced maternal stress and population demography in snowshoe hares: the more severe the risk, the longer the generational effect.Crossref | GoogleScholarGoogle Scholar |

Suraci, J. P., Clinchy, M., Dill, L. M., Roberts, D., and Zanette, L. Y. (2015). Fear of large carnivores causes a trophic cascade. Nature Communications , .
Fear of large carnivores causes a trophic cascade.Crossref | GoogleScholarGoogle Scholar |

Wong, D. H., Kinnear, J. E., Runham, C. F., and Den Hollander, L. C. (1991a). A preliminary report on a bacterial assay for Compound 1080 (sodium fluoroacetate). Letters in Applied Microbiology 12, 161–163.
A preliminary report on a bacterial assay for Compound 1080 (sodium fluoroacetate).Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK3MXlt12rtbw%3D&md5=067886102bc1c20c841c458ccfb5a257CAS |

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

Wong, D. H., Kirkpatrick, W. E., King, D. R., and Kinnear, J. E. (1992). Defluoroination of sodium fluoroacetate (1080) by microorganisms isolated from Western Australian soils. Soil Biology & Biochemistry 24, 833–838.
Defluoroination of sodium fluoroacetate (1080) by microorganisms isolated from Western Australian soils.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK38Xmt12rsbg%3D&md5=95de8209cc837505be4d80843d67ef0eCAS |

Wong, D. H., Kinnear, J. E., and Runham, C. F. (1995). A simple rapid bioassay for compound 1080 (sodium fluoroacetate) in bait materials and soil – its techniques and applications. Wildlife Research 22, 561–568.
A simple rapid bioassay for compound 1080 (sodium fluoroacetate) in bait materials and soil – its techniques and applications.Crossref | GoogleScholarGoogle Scholar |