Managing the risk of exotic vertebrate incursions in AustraliaWendy Henderson A , Mary Bomford A and Phillip Cassey B C
A Invasive Animals Cooperative Research Centre, University of Canberra, ACT 2601, Australia.
B School of Earth and Environmental Sciences, University of Adelaide, Adelaide, SA 5005, Australia.
C Corresponding author. Email: email@example.com
Wildlife Research 38(6) 501-508 http://dx.doi.org/10.1071/WR11089
Submitted: 27 May 2011 Accepted: 18 September 2011 Published: 4 November 2011
Context: Biological invasions are a profound contribution to human-induced environmental change. Although intentional introductions of vertebrate species have largely declined, global transport and communication networks continue to increase. As a consequence, more goods are being traded and the type of species being transported has changed, as well as the associated risks.
Aims: To analyse the frequency, and provide risk assessments, for exotic vertebrate species detected by border and post-border Australian biosecurity agencies in the past decade (1999–2010).
Methods: We collated detection records by emailing or telephoning representatives from agencies responsible for implementing Australian biosecurity. We calculated the risk of successful establishment (low, moderate, serious, extreme) for 137 identified vertebrate species not currently established in Australia. Generalised linear models were constructed to test whether the frequency of increasing risk of establishment was associated with either differences between vertebrate classes and/or different detection categories.
Key results: The majority of species detected were reported from illegal keeping. Individual species risk assessments revealed that reptiles were more likely to be of greater risk for future establishment than were birds, mammals or amphibians. Controlling for taxonomy, high-risk species were not involved in larger (i.e. number of individuals) incidents than were lower-risk species. Across years, the number of novel exotic vertebrate species detected ‘at large’ in Australia has significantly increased.
Conclusions: Several of the species detected by biosecurity agencies have attributes that give them the potential to become pests in Australia. Preventing incursions is by far the most cost-effective way to prevent future pest damage.
Implications: It is clear that a nationally coordinated framework for data collection and data sharing among agencies is urgently required. We present a minimum framework for the future collection of inter-agency data, necessary to assess and monitor the ongoing risk of vertebrate pest incursions in Australia.
Additional keywords:: alien species, border incursions, interceptions, risk management, stowaways, vertebrate pests.
ReferencesAlacs, E., and Georges, A. (2008). Wildlife across our borders: a review of the illegal trade to Australia. Journal of Forensic Sciences 40, 147–160.
| Wildlife across our borders: a review of the illegal trade to Australia.CrossRef |
Andersen, M. C. (2008). The roles of risk assessment in the control of invasive vertebrates. Wildlife Research 35, 242–248.
| The roles of risk assessment in the control of invasive vertebrates.CrossRef |
Andersen, M. C., Adams, H., Hope, B., and Powell, M. (2004). Risk assessment for invasive species. Risk Analysis 24, 787–793.
| Risk assessment for invasive species.CrossRef |
Blackburn, T. M., Cassey, P., Duncan, R. P., Evans, K. L., and Gaston, K. J. (2004). Avian extinction and mammalian introductions on oceanic islands. Science 305, 1955–1958.
| Avian extinction and mammalian introductions on oceanic islands.CrossRef |
Bomford, M. (2008). ‘Risk Assessment Models for Establishment of Exotic Vertebrates in Australia and New Zealand.’ (Invasive Animals Cooperative Research Centre: Canberra.)
Bomford, M., Kraus, F., Barry, S. C., and Lawrence, E. (2009). Predicting establishment success for alien reptiles and amphibians: a role for climate matching. Biological Invasions 11, 713–724.
| Predicting establishment success for alien reptiles and amphibians: a role for climate matching.CrossRef |
Cassey, P., Blackburn, T. M., Sol, D., Duncan, R. P., and Lockwood, J. L. (2004). Global patterns of introduction effort and establishment success in birds. Proceedings. Biological Sciences 271, S405–S408.
| Global patterns of introduction effort and establishment success in birds.CrossRef |
Cassey, P., Blackburn, T. M., Duncan, R. P., and Chown, S. L. (2005). Concerning invasive species: a reply to Brown and Sax. Austral Ecology 30, 475–480.
| Concerning invasive species: a reply to Brown and Sax.CrossRef |
Cook, D. C., Liu, S., Murphy, B., and Lonsdale, M. W. (2010). Adaptive approaches to biosecurity governance. Risk Analysis 30, 1303–1314.
| Adaptive approaches to biosecurity governance.CrossRef |
Crocker, T. D., and Shogren, J. F. (1999). Endogenous environmental risk. In ‘Handbook of Environmental and Resource Economics’. (Ed. J. C. J. M. van den Bergh.) pp. 215–222. (Edward Elgar: Cheltenham, UK.)
Crombie, J., Brown, L., Lizzio, J., and Hood, G. (2008). ‘Climatch User Manual.’ (Bureau of Rural Sciences: Canberra.)
DAFWA (2007). ‘Animal Pest Alert Indian Ringneck Parakeet No. 1/2007.’ (Department of Agriculture and Food: Perth.)
DEH (2004). Department of the Environment and Heritage annual report 2003–04. Department of the Environment and Heritage, Canberra.
Dove, C. J., Snow, R. W., Rochford, M. R., and Mazzotti, F. J. (2011). Birds consumed by the invasive Burmese python (Python molurus bivittatus) in Everglades National Park, Florida, USA. The Wilson Journal of Ornithology 123, 126–131.
| Birds consumed by the invasive Burmese python (Python molurus bivittatus) in Everglades National Park, Florida, USA.CrossRef |
Engeman, R. M., Smith, H. T., and Constantin, B. (2005). Invasive iguanas as airstrike hazards at Luis Munoz Marin International Airport, San Juan, Puerto Rico. Journal of Aviation Aerospace Education and Research 14, 45–50.
Fisher, P. L., and Csurhes, S. (2009). ‘Pest Animal Risk Assessment American Corn Snake Elaphe guttata.’ (Queensland Primary Industries and Fisheries: Brisbane.)
Gómez, A., and Aguirre, A. A. (2008). Infectious diseases and the illegal wildlife trade. Annals of the New York Academy of Sciences 1149, 16–19.
| Infectious diseases and the illegal wildlife trade.CrossRef |
Gong, W., Sinden, J., and Jones, R. (2010). ‘The Economic Impacts of Vertebrate Pests in Australia.’ (Invasive Animals Cooperative Research Centre: Canberra.)
Hayes, K. R., and Barry, S. C. (2008). Are there any consistent predictors of invasion success? Biological Invasions 10, 483–506.
| Are there any consistent predictors of invasion success?CrossRef |
Henderson, W., and Bomford, M. (2011). ‘Detecting and Preventing New Incursions of Exotic Animals in Australia.’ (Invasive Animals Cooperative Research Centre: Canberra.)
Jarrad, F. C., Barrett, S., Murray, J., Stoklosa, R., Whittle, P., and Mengersen, K. (2011). Ecological aspects of biosecurity surveillance design for the detection of multiple invasive animal species. Biological Invasions 13, 803–818.
| Ecological aspects of biosecurity surveillance design for the detection of multiple invasive animal species.CrossRef |
Jeschke, J. M., and Strayer, D. L. (2005). Invasion success of vertebrates in Europe and North America. Proceedings of the National Academy of Sciences, USA 102, 7198–7202.
| Invasion success of vertebrates in Europe and North America.CrossRef |
Juniper, A., and Parr, M. (1998). ‘Parrots: a Guide to the Parrots of the World.’ (Christopher Helm: London.)
Karesh, W. B., Cook, R. A., Gilbert, M., and Newcomb, J. (2007). Implications of wildlife trade on the movement of avian influenza and other infectious diseases. Journal of Wildlife Diseases 43, S55–S59.
Keller, R. P., Lodge, D. M., and Finoff, D. C. (2007). Risk assessment for invasive species produces net bioeconomic benefits. Proceedings of the National Academy of Sciences, USA 104, 203–207.
| Risk assessment for invasive species produces net bioeconomic benefits.CrossRef |
Kraus, F. (2009). ‘Alien Reptiles and Amphibians: a Scientific Compendium and Analysis.’ (Springer: New York.)
Lintermans, M. (2004). Human-assisted dispersal of alien freshwater fish in Australia. New Zealand Journal of Marine and Freshwater Research 38, 481–501.
| Human-assisted dispersal of alien freshwater fish in Australia.CrossRef |
Lockwood, J. L., Cassey, P., and Blackburn, T. M. (2005). Is propagule pressure the ‘missing link’ in predicting invasions? Trends in Ecology Evolution 20, 223–228.
| Is propagule pressure the ‘missing link’ in predicting invasions?CrossRef |
Lockwood, J. L., Cassey, P., and Blackburn, T. M. (2009). The more you introduce the more you get: the role of colonization and propagule pressure in invasion ecology. Diversity Distributions 15, 904–910.
| The more you introduce the more you get: the role of colonization and propagule pressure in invasion ecology.CrossRef |
Mack, R. N., Simberloff, D., Lonsdale, W. M., Evans, H., Clout, M., and Bazzaz, F. A. (2000). Biotic invasions: causes, epidemiology, global consequences, and control. Ecological Applications 10, 689–710.
| Biotic invasions: causes, epidemiology, global consequences, and control.CrossRef |
McKie, A. C., Hammond, J. E., Smith, H. T., and Meshaka, W. E. (2005). Invasive green iguana interactions in a burrowing owl colony in Florida. Florida Field Naturalist 33, 125–127.
Meshaka, W. E., Smith, H. T., Golden, E., Moore, J. A., Fitchett, S., Cowan, E. M., Engeman, R. M., Sekscienski, S. R., and Cress, H. L. (2007). Green iguanas (Iguana iguana): the unintended consequence of sound wildlife management practices in a south Florida park. Herpetological Conservation and Biology 2, 149–156.
Page, A., Kirkpatrick, W., and Massam, M. (2008). ‘Black-spined toad (Bufo melanostictus) risk assessments for Australia.’ (Department of Agriculture and Food: Perth.)
Pyšek, P., and Richardson, D. M. (2010). Invasive species, environmental change and management, and health. Annual Review of Environment and Resources 35, 25–55.
| Invasive species, environmental change and management, and health.CrossRef |
Pyšek, P., Jarošík, V., Hulme, P. E., Kühn, I., Wild, J., Arianoutsou, M., Bacher, S., Chiron, F., Didžiulis, V., Essl, F., Genovesi, P., Gherardi, F., Hejda, M., Kark, S., Lambdon, P. W., Desprez–Loustau, M.-L., Nentwig, W., Pergl, J., Poboljšaj, K., Rabitsch, W., Roques, A., Roy, D. B., Shirley, S., Solarz, W., Vilà, M., and Winter, M. (2010). Disentangling the role of environmental and human pressures on biological invasions across Europe. Proceedings of the National Academy of Sciences, USA 107, 12157–12162.
| Disentangling the role of environmental and human pressures on biological invasions across Europe.CrossRef |
Reaser, J. K., Meyerson, L. A., and Von Holle, B. (2008). Saving camels from straws: how propagule pressure-based prevention policies can reduce the risk of biological invasion. Biological Invasions 10, 1085–1098.
| Saving camels from straws: how propagule pressure-based prevention policies can reduce the risk of biological invasion.CrossRef |
Richardson, D. M. (Ed.) (2010) ‘Fifty Years of Invasion Ecology: the Legacy of Charles Elton.’ (Wiley – Blackwell: London.)
Rowe, W. D. (1977). ‘An Anatomy of Risk.’ (Wiley: New York.)
Simberloff, D. (2003). How much information on population biology is needed to manage introduced species? Conservation Biology 17, 83–92.
| How much information on population biology is needed to manage introduced species?CrossRef |
Simberloff, D. (2009). The role of propagule pressure in biological invasions. Annual Review of Ecology Evolution and Systematics 40, 81–102.
| The role of propagule pressure in biological invasions.CrossRef |
Springborn, M., Romagosa, C. M., and Keller, R. P. (2011). The value of non-indigenous species risk assessment in international trade. Ecological Economics , .
| The value of non-indigenous species risk assessment in international trade.CrossRef |
VPC (2007). ‘List of Exotic Vertebrate Animals in Australia.’ (Vertebrate Pest Committee: Canberra.) Available at http://www.feral.org.au/list-of-exotic-vertebrate-animals-in-australia [accessed 20 January 2011]
Westphal, M. I., Browne, M., MacKinnon, K., and Noble, I. (2008). The link between international trade and the global distribution of invasive alien species. Biological Invasions 10, 391–398.
| The link between international trade and the global distribution of invasive alien species.CrossRef |
Willson, J. D., Dorcas, M. E., and Snow, R. W. (2011). Identifying plausible scenarios for the establishment of invasive Burmese pythons (Python molurus) in southern Florida. Biological Invasions , .
| Identifying plausible scenarios for the establishment of invasive Burmese pythons (Python molurus) in southern Florida.CrossRef |
Wittenberg, R., and Cock, M. J. W. (Eds) (2001). ‘Invasive alien species: a toolkit of best prevention and management practices.’ (CAB International: Wallingford, UK.)