Evaluating the long-term project to eradicate the rangeland weed Martynia annua L.: linking community with conservationMark R. Gardener A C D , Simone Cordell B , Mark Anderson B and Richard D. Tunnicliffe B
A School of Environmental Research, Charles Darwin University, NT 0909, Australia.
B Northern Territory National Parks, Palmerston, NT 0831, Australia.
C Charles Darwin Foundation, Puerto Ayora, Galapagos Islands, Ecuador.
D Corresponding author. Email: firstname.lastname@example.org
The Rangeland Journal 32(4) 407-417 https://doi.org/10.1071/RJ10029
Submitted: 15 June 2010 Accepted: 12 August 2010 Published: 26 November 2010
Eradication of an invasive species is a holy grail sought by land managers, scientists and policy makers alike. This prize is particularly attractive to funding bodies that foresee a one-off investment to solve a problem. We evaluate a 20-year eradication project on the annual weed Martynia annua L. from remote Gregory (Jutburra) National Park in northern Australia. M. annua was regionally introduced in the 1860s and has since become naturalised and locally abundant on some pastoral properties. When land use changed from grazing to national park in the mid 1980s, M. annua was thought to be a serious problem. An eradication project was started in the late 1980s. Eradication of all individuals from within the National Park has not been successful but there have been other benefits of the project. We analysed operational, biological, social and economic criteria to find that the principal barriers to eradication were: occasional inaccessibility during the crucial seed production window; many widely dispersed small infestations; a perennial seed bank; and long-distance dispersal mechanisms. The two successes of the project were control of the weed to a level where ecological impact was negligible; and extensive community engagement. A novel approach adopted by the National Park, a biannual event called the Devil’s Claw Festival, has trained and educated hundreds of local, national and international people about biological invasions and conservation issues in remote northern Australia. Long-term institutional leadership and investment have been crucial for this project. We offer recommendations to policy makers embarking on eradication projects of widespread rangeland weeds.
Additional keywords: community participation, containment, cost/benefit, Devil’s Claw, invasive, seed bank.
ReferencesBlakely, W. (1923). Weeds of New South Wales. Small fruited devil’s claw (Martynia diandra Glox.). Agricultural Gazette of New South Wales 34, 334–336.
Bomford, M., and O’Brien, P. (1995). Eradication or control for vertebrate pests? Wildlife Society Bulletin 23, 249–255.
Bureau of Meteorology (2009). Daily Rainfall Bulletin. Available at: www.bom.gov.au (accessed 25 August 2009).
Cunningham, D. C., Barry, S. C., Woldendorp, G., and Burgess, M. B. (2004). A framework for prioritizing sleeper weeds for eradication. Weed Technology 18, 1189–1193.
| A framework for prioritizing sleeper weeds for eradication.CrossRef |
Gaertner, M., Den Breeyen, A., Hui, C., and Richardson, D. M. (2009). Impacts of alien plant invasions on species richness in Mediterranean-type ecosystems: a meta-analysis. Progress in Physical Geography 33, 319–338.
| Impacts of alien plant invasions on species richness in Mediterranean-type ecosystems: a meta-analysis.CrossRef |
García-Llorente, M., Martín-López, B., González, J. A., Alcorlo, P., and Montes, C. (2008). Social perceptions of the impacts and benefits of invasive alien species: implications for management. Biological Conservation 141, 2969–2983.
| Social perceptions of the impacts and benefits of invasive alien species: implications for management.CrossRef |
Gardener, M. R., Atkinson, R., and Rentería, J. L. (2010). Eradications and people: lessons from the plant eradication program in Galapagos. Restoration Ecology 18, 20–29.
| Eradications and people: lessons from the plant eradication program in Galapagos.CrossRef |
Harris, S., and Timmins, S. M. (2009). ‘Estimating the Benefit of Early Control of all Newly Naturalised Plants.’ (Department of Conservation: Wellington.)
Howald, G., Donlan, C. J., Galván, J. P., Russell, J. C., Parkes, J., Samaniego, A., Wang, Y., Veitch, D., Genovesi, P., Pascal, M., Saunders, A., and Tershy, B. (2007). Invasive rodent eradication on islands. Conservation Biology 21, 1258–1268.
| Invasive rodent eradication on islands.CrossRef | 17883491PubMed |
Jäger, H., Kowarik, I., and Tye, A. (2009). Destruction without extinction: long-term impacts of an invasive tree species on Galápagos highland vegetation. Journal of Ecology 97, 1252–1263.
| Destruction without extinction: long-term impacts of an invasive tree species on Galápagos highland vegetation.CrossRef |
Mack, R. N., and Forster, S. K. (2009). Eradicating plant invaders: combining ecologically-based tactics and broad-sense strategy. In: ‘Management of Invasive Weeds’. (Ed. Inderjit.) pp. 35–60. (Springer: Heidelberg.)
Nelson, J. T., Woodworth, B. L., Fancy, S. G., Lindsey, G. D., and Tweed, E. J. (2002). Effectiveness of rodent control and monitoring techniques for a montane rainforest. Wildlife Society Bulletin 30, 82–92.
Northern Territory Government (2010). Financial statements, Department of Natural Resources, Environment, The Arts and Sport. Available at: www.nt.gov.au/nreta/publications/reports/pdf/2009/AR_2009_Finacial%20Statements.pdf (accessed 6 June 2010).
Panetta, F. D. (2007). Evaluation of weed eradication programs: containment and extirpation. Diversity & Distributions 13, 33–44.
Panetta, F. D. (2009a). Seed persistence of the invasive aquatic plant, Gymnocoronis spilanthoides (Asteraceae). Australian Journal of Botany 57, 670–674.
| Seed persistence of the invasive aquatic plant, Gymnocoronis spilanthoides (Asteraceae).CrossRef |
Panetta, F. D. (2009b). Weed eradication – an economic perspective. Invasive Plant Science and Management 2, 360–368.
| Weed eradication – an economic perspective.CrossRef |
Panetta, F. D., and Lawes, R. (2005). Evaluation of weed eradication programs: the delimitation of extent. Diversity & Distributions 11, 435–442.
| Evaluation of weed eradication programs: the delimitation of extent.CrossRef |
Panetta, F. D., and Timmins, S. M. (2004). Evaluating the feasibility of eradication for terrestrial weed incursions. Plant Protection Quarterly 19, 5–11.
Parsons, W., and Cuthbertson, E. (2001). ‘Noxious Weeds of Australia.’ (CSIRO Publishing: Melbourne.)
Pitt, J. (1998). ‘Devil’s Claw: Agnote 489.’ (Department of Primary Industries and Fisheries: Darwin.)
Pyšek, P., Richardson, D. M., Rejmánek, M., Webster, G. L., Williamson, M., and Kirschner, J. (2004). Alien plants in checklists and floras: towards better communication between taxonomists and ecologists. Taxon 53, 131–143.
| Alien plants in checklists and floras: towards better communication between taxonomists and ecologists.CrossRef |
Rejmánek, M., and Pitcairn, M. J. (2002). When is eradication of pest plants a realistic goal. In: ‘Turning the Tide: The Eradication of Invasive Species’. (Eds D. Veitch and M. Clout.) pp. 249–253. (Invasive Species Specialty Group of the World Conservation Union (IUCN): Auckland.)
Reserve Bank of Australia (2009). Inflation calculator. Available at: www.rba.gov.au/calculator/calc.go (accessed 11 November 2009).
Sax, D. F., and Gaines, S. D. (2008). Species invasions and extinction: the future of native biodiversity on islands. Proceedings of the National Academy of Sciences of the United States of America 105, 11 490–11 497.
| Species invasions and extinction: the future of native biodiversity on islands.CrossRef | 1:CAS:528:DC%2BD1cXhtVSjtr%2FP&md5=a7124e6f38819899553daa8fea4aef24CAS |
Simberloff, D. (2003). Eradication – preventing invasions at the onset. Weed Science 51, 247–253.
| Eradication – preventing invasions at the onset.CrossRef | 1:CAS:528:DC%2BD3sXitlKqt7k%3D&md5=bf9b59f470f92ea9b23557fdd32e0c6dCAS |
Veitch, C. R., and Clout, M. N. (Eds) (2002). ‘Turning the Tide: The Eradication of Invasive Species.’ (Invasive Species Specialty Group of the World Conservation Union (IUCN): Auckland.)