Rapid decline in detections of the Tasmanian bettong (Bettongia gaimardi) following local incursion of feral cats (Felis catus)
Bronwyn A. Fancourt
+ Author Affiliations
- Author Affiliations
School of Biological Sciences, University of Tasmania, Private Bag 55, Hobart, Tas. 7001, Australia. Email: Bronwyn.Fancourt@utas.edu.au
Australian Mammalogy 36(2) 247-253 https://doi.org/10.1071/AM14004
Submitted: 5 March 2014 Accepted: 24 April 2014 Published: 10 June 2014
Abstract
An abrupt decline in the number of Tasmanian bettongs (Bettongia gaimardi) was observed as part of a study investigating population declines in the eastern quoll (Dasyurus viverrinus). Seven remote camera surveys were undertaken at a monitoring site between February 2012 and October 2013. An 11% reduction in bettong detections was observed immediately following the first appearance of feral cats (Felis catus) (at least three individuals) at the site. Within four months, bettong detections had fallen by 58% and by 100% within six months. No bettongs were detected in subsequent surveys undertaken 10, 12 and 16 months after cats were first observed. Cat predation and toxoplasmosis are discussed as mechanisms possibly responsible for the local disappearance of bettongs from this site, together with implications for the future management and conservation of the species.
Additional keywords: eastern bettong, eastern rat-kangaroo, predation, Toxoplasma gondii, toxoplasmosis.
References
Abbott, I. (2002). Origin and spread of the cat, Felis catus, on mainland Australia, with a discussion of the magnitude of its early impact on native fauna. Wildlife Research 29, 51–74.| Origin and spread of the cat, Felis catus, on mainland Australia, with a discussion of the magnitude of its early impact on native fauna.Crossref | GoogleScholarGoogle Scholar |
Attwood, H. D., Woolley, P. A., and Rickard, M. D. (1975). Toxoplasmosis in dasyurid marsupials. Journal of Wildlife Diseases 11, 543–551.
| Toxoplasmosis in dasyurid marsupials.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaE28%2Fnt1eisg%3D%3D&md5=85a33f470a97061bd64a11296f51ac9bCAS | 1195500PubMed |
Bettiol, S. S., Obendorf, D. L., Nowarkowski, M., and Goldsmid, J. M. (2000). Pathology of experimental toxoplasmosis in eastern barred bandicoots in Tasmania. Journal of Wildlife Diseases 36, 141–144.
| Pathology of experimental toxoplasmosis in eastern barred bandicoots in Tasmania.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD3c7ksV2lsg%3D%3D&md5=e278e69dbcb21fcdf996da4f4df9a2e7CAS | 10682755PubMed |
Burns, R., Williams, E. S., O’Toole, D., and Dubey, J. P. (2003). Toxoplasma gondii infections in captive black-footed ferrets (Mustela nigripes), 1992–1998: clinical signs, serology, pathology, and prevention. Journal of Wildlife Diseases 39, 787–797.
| Toxoplasma gondii infections in captive black-footed ferrets (Mustela nigripes), 1992–1998: clinical signs, serology, pathology, and prevention.Crossref | GoogleScholarGoogle Scholar | 14733273PubMed |
Canfield, P. J., Hartley, W. J., and Dubey, J. P. (1990). Lesions of toxoplasmosis in Australian marsupials. Journal of Comparative Pathology 103, 159–167.
| Lesions of toxoplasmosis in Australian marsupials.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaK3M%2FmtVOktA%3D%3D&md5=a419d788491ea09b97364119688d6fdfCAS | 2246391PubMed |
Christensen, P. E., and Burrows, N. (1995). Project Desert Dreaming: experimental reintroduction of mammals to the Gibson Desert, Western Australia. In ‘Reintroduction Biology of Australian and New Zealand Fauna’. (Ed. M. Serena.) pp. 199–207. (Surrey Beatty: Sydney.)
Copley, P., Williams, S., Stelmann, J., and Allen, R. (1999). Ecological restoration of northern Eyre: Venus Bay Conservation Park, program summary review 1992–1999. National Parks & Wildlife SA, Govt. of South Australia.
De Bondi, N., White, J. G., Stevens, M., and Cooke, R. (2010). A comparison of the effectiveness of camera trapping and live trapping for sampling terrestrial small-mammal communities. Wildlife Research 37, 456–465.
| A comparison of the effectiveness of camera trapping and live trapping for sampling terrestrial small-mammal communities.Crossref | GoogleScholarGoogle Scholar |
de Tores, P. (2012). The importance of fox, cat and native predator interactions to sustained fauna recovery in the northern jarrah forest – is there a mesopredator release effect? In ‘Science Division Annual Research Activity Report and Management Implications’. pp. 72–73. Department of Environment and Conservation, Western Australia.
Dubey, J. P., Miller, N. L., and Frenkel, J. K. (1970). The Toxoplasma gondii oocyst from cat faeces. The Journal of Experimental Medicine 132, 636–662.
| The Toxoplasma gondii oocyst from cat faeces.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaE3MXivFajsg%3D%3D&md5=61860546a37f672460115a842146c4faCAS | 4927658PubMed |
Dubey, J. P., Ott-Joslin, J., Torgerson, R. W., Topper, M. J., and Sundberg, J. P. (1988). Toxoplasmosis in black-faced kangaroos (Macropus fuliginosus melanops). Veterinary Parasitology 30, 97–105.
| Toxoplasmosis in black-faced kangaroos (Macropus fuliginosus melanops).Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaL1M3isVSrtQ%3D%3D&md5=5758933248174c7156497c4c5a3ab58eCAS | 3245110PubMed |
Fancourt, B. A., Nicol, S. C., and Hawkins, C. E. (2013). Evidence of rapid population decline of the eastern quoll (Dasyurus viverrinus) in Tasmania. Australian Mammalogy 35, 195–205.
| Evidence of rapid population decline of the eastern quoll (Dasyurus viverrinus) in Tasmania.Crossref | GoogleScholarGoogle Scholar |
Fancourt, B. A., Nicol, S. C., Hawkins, C. E., Jones, M. E., and Johnson, C. N. (2014). Beyond the disease: is Toxoplasma gondii infection causing population declines in the eastern quoll (Dasyurus viverrinus)? International Journal for Parasitology: Parasites and Wildlife , .
| Beyond the disease: is Toxoplasma gondii infection causing population declines in the eastern quoll (Dasyurus viverrinus)?Crossref | GoogleScholarGoogle Scholar |
Frenkel, J. K., Dubey, J. P., and Miller, N. L. (1970). Toxoplasma gondii in cats: fecal stages identified as coccidian oocysts. Science 167, 893–896.
| Toxoplasma gondii in cats: fecal stages identified as coccidian oocysts.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaE3c%2Fot1Kguw%3D%3D&md5=685143b188acf54165e73ceaffcbc016CAS | 4903651PubMed |
Gibson, D. F., Lundie-Jenkins, G., Langford, D. G., Cole, J. R., Clarke, J. E., and Johnson, K. A. (1994). Predation by feral cats, Felis catus, on the rufous hare-wallaby, Lagorchestes hirsutus, in the Tanami Desert. Australian Mammalogy 17, 103–107.
Hawkins, C. E., Baars, C., Hesterman, H., Hocking, G. J., Jones, M. E., Lazenby, B., Mann, D., Mooney, N., Pemberton, D., Pyecroft, S., Restani, M., and Wiersma, J. (2006). Emerging disease and population decline of an island endemic, the Tasmanian devil Sarcophilus harrisii. Biological Conservation 131, 307–324.
| Emerging disease and population decline of an island endemic, the Tasmanian devil Sarcophilus harrisii.Crossref | GoogleScholarGoogle Scholar |
Hill, D., and Dubey, J. (2002). Toxoplasma gondii: transmission, diagnosis and prevention. Clinical Microbiology and Infection 8, 634–640.
| Toxoplasma gondii: transmission, diagnosis and prevention.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD38njt1emtA%3D%3D&md5=0e57859608578fb85d44eac1e03130c2CAS | 12390281PubMed |
Innes, E. A. (1997). Toxoplasmosis: comparative species susceptibility and host immune response. Comparative Immunology, Microbiology and Infectious Diseases 20, 131–138.
| Toxoplasmosis: comparative species susceptibility and host immune response.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaK2szltF2itA%3D%3D&md5=b92a66c27a02904ef2bb98776fd72f3eCAS | 9208198PubMed |
James, H., Acharya, A., Taylor, J. A., and Freak, M. (2002). A case of bitten bettongs. The Journal of Forensic Odonto-Stomatology 20, 10–12.
| 1:STN:280:DC%2BD38zktlahtA%3D%3D&md5=6f5f6e1cfd2ffd92bda9d69e2abe6fe1CAS | 12085522PubMed |
Johnson, C. (1994). Distribution of feeding activity of the Tasmanian bettong (Bettongia gaimardi) in relation to vegetation patterns. Wildlife Research 21, 249–255.
| Distribution of feeding activity of the Tasmanian bettong (Bettongia gaimardi) in relation to vegetation patterns.Crossref | GoogleScholarGoogle Scholar |
Marlow, N. J., and Williams, A. (2012). Sustained fauna recovery in a fragmented landscape (Dryandra Woodland and Tutanning Nature Reserve). In ‘Science Division Annual Research Activity Report and Management Implications’. pp. 74–75. Department of Environment and Conservation: Western Australia.
Maxwell, S., Burbidge, A. A., and Morris, K. (Eds) (1996). ‘The 1996 Action Plan for Australian Marsupials and Monotremes.’ (Wildlife Australia: Canberra.)
McCallum, H. (1994). Quantifying the impact of disease on threatened species. Pacific Conservation Biology 1, 107–117.
Menkhorst, P. (2008). Bettongia gaimardi. In ‘IUCN Red List of Threatened Species’. (Version 2013.2). Available at: http://www.iucnredlist.org/details/2783/0 [accessed 26 December 2013].
Miller, N. L., Frenkel, J. K., and Dubey, J. P. (1972). Oral infections with Toxoplasma cysts and oocysts in felines, other mammals and in birds. The Journal of Parasitology 58, 928–937.
| Oral infections with Toxoplasma cysts and oocysts in felines, other mammals and in birds.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaE3s%2Fit1emtg%3D%3D&md5=024fa42ee24115b34ad6c3ae41884093CAS | 5078599PubMed |
Obendorf, D. L., and Munday, B. L. (1983). Toxoplasmosis in wild Tasmanian wallabies. Australian Veterinary Journal 60, 62.
| Toxoplasmosis in wild Tasmanian wallabies.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaL3s7nslyqtQ%3D%3D&md5=5d036749b45a95e47fe514f3a7e67cedCAS | 6838441PubMed |
Obendorf, D. L., and Munday, B. L. (1990). Toxoplasmosis in wild eastern barred bandicoots Perameles gunnii. In ‘Bandicoots and Bilbies’. (Eds J. H. Seeback, P. R. Brown, R. L. Wallis and C. M. Kemper.) pp. 193–197. (Surrey Beatty: Sydney.)
Parameswaran, N., Wayne, A., and Thompson, R. C. A. (2008). Toxoplasma. In ‘Progress Report of the Woylie Conservation Research Project – A Report to the Department of Environment and Conservation Corporation Executive’. pp. 237–245. Department of Environment and Conservation.
Portas, T., Fletcher, D., Spratt, D., Reiss, A., Holz, P., Stalder, K., Devlin, J., Taylor, D., Dobroszczyk, D., and Manning, A. D. (2014). Health evaluation of free-ranging eastern bettongs (Bettongia gaimardi) during translocation for reintroduction in Australia. Journal of Wildlife Diseases 50, 210–223.
| Health evaluation of free-ranging eastern bettongs (Bettongia gaimardi) during translocation for reintroduction in Australia.Crossref | GoogleScholarGoogle Scholar | 24484484PubMed |
Priddel, D., and Wheeler, R. (2004). An experimental translocation of brush-tailed bettongs (Bettongia penicillata) to western New South Wales. Wildlife Research 31, 421–432.
| An experimental translocation of brush-tailed bettongs (Bettongia penicillata) to western New South Wales.Crossref | GoogleScholarGoogle Scholar |
Rose, R. (1986). The habitat, distribution and conservation status of the Tasmanian bettong, Bettongia gaimardi (Desmarest). Australian Wildlife Research 13, 1–6.
| The habitat, distribution and conservation status of the Tasmanian bettong, Bettongia gaimardi (Desmarest).Crossref | GoogleScholarGoogle Scholar |
Rose, R. W., and Johnson, K. A. (2008). Tasmanian bettong: Bettongia gaimardi. In ‘The Mammals of Australia’. (Eds S. M. Van Dyck and R. Strahan.) pp. 287–288. (Reed New Holland: Sydney.)
Sarre, S. D., Macdonald, A. J., Barclay, C., Saunders, G. R., and Ramsey, D. S. L. (2013). Foxes are now widespread in Tasmania: DNA detection defines the distribution of this rare but invasive carnivore. Journal of Applied Ecology 50, 459–468.
| Foxes are now widespread in Tasmania: DNA detection defines the distribution of this rare but invasive carnivore.Crossref | GoogleScholarGoogle Scholar |
Short, J. (1998). The extinction of rat-kangaroos (Marsupialia: Potoroidae) in New South Wales, Australia. Biological Conservation 86, 365–377.
| The extinction of rat-kangaroos (Marsupialia: Potoroidae) in New South Wales, Australia.Crossref | GoogleScholarGoogle Scholar |
Shorthouse, D. J., Iglesias, D., Jeffress, S., Lane, S., Mills, P., Woodbridge, G., McIntyre, S., and Manning, A. D. (2012). The ‘making of’ the Mulligans Flat – Goorooyarroo experimental restoration project. Ecological Management & Restoration 13, 112–125.
| The ‘making of’ the Mulligans Flat – Goorooyarroo experimental restoration project.Crossref | GoogleScholarGoogle Scholar |
Sih, A. (1984). The behavioral response race between predator and prey. American Naturalist 123, 143–150.
| The behavioral response race between predator and prey.Crossref | GoogleScholarGoogle Scholar |
Statham, H.L. (1983Browsing damage in Tasmanian forest areas and effects of 1080 poisoning. Forestry Commission Tasmania Bulletin No. 7.). , .
Taylor, R. (1993). Home range, nest use and activity of the Tasmanian bettong, Bettongia gaimardi. Wildlife Research 20, 87–95.
| Home range, nest use and activity of the Tasmanian bettong, Bettongia gaimardi.Crossref | GoogleScholarGoogle Scholar |
Trolle, M., Noss, A. J., Cordeiro, J. L. P., and Oliveira, L. F. B. (2008). Brazilian tapir density in the Pantanal: a comparison of systematic camera-trapping and line-transect surveys. Biotropica 40, 211–217.
| Brazilian tapir density in the Pantanal: a comparison of systematic camera-trapping and line-transect surveys.Crossref | GoogleScholarGoogle Scholar |
Wakefield, N. (1967). Some taxonomic revision in the Australian marsupial genus Bettongia (Macropodidae), with description of a new species. Victorian Naturalist 84, 8–22.
Wayne, A., Maxwell, M., Nicholls, P., Pacioni, C., Reiss, A., Smith, A., Thompson, A., Vellios, C., Ward, C., Wayne, J., Wilson, I., and Williams, M. (2011). The Woylie Conservation Research Project: investigating the cause(s) of woylie declines in the Upper Warren region. Progress Report December 2011. Department of Environment and Conservation.
Wayne, A. F., Maxwell, M. A., Ward, C. G., Vellios, C. V., Ward, B. G., Liddelow, G. L., Wilson, I., Wayne, J. C., and Williams, M. R. (2013). Importance of getting the numbers right: quantifying the rapid and substantial decline of an abundant marsupial, Bettongia penicillata. Wildlife Research 40, 169–183.
| Importance of getting the numbers right: quantifying the rapid and substantial decline of an abundant marsupial, Bettongia penicillata.Crossref | GoogleScholarGoogle Scholar |
