Diet of the critically endangered woylie (Bettongia penicillata ogilbyi) in south-western Australia
Kerry L. Zosky A C , Adrian F. Wayne A B , Kate A. Bryant A , Michael C. Calver A and Fiona R. Scarff AA Environment and Conservation Cluster, School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA 6150, Australia.
B Science and Conservation Directorate, Department of Biodiversity, Conservation and Attractions, Brain Street, Manjimup, WA 6258, Australia.
C Corresponding author. Email: gandkzosky@bigpond.com
Australian Journal of Zoology 65(5) 302-312 https://doi.org/10.1071/ZO17080
Submitted: 4 December 2017 Accepted: 19 March 2018 Published: 26 April 2018
Abstract
To assist the management of the critically endangered woylie (Bettongia penicillata ogilbyi), a quantitative study of its diet was conducted across five of the larger subpopulations in south-western Australia. There was a close match between dietary composition established from foregut contents and faecal pellets. Woylies were predominantly mycophagous in all subpopulations, but consumed a broad diet including invertebrates, seeds and other plant material. Individuals in a high-density, fenced subpopulation ate significantly less fungi than free-ranging animals from lower-density subpopulations. Dietary composition did not vary significantly amongst subpopulations in the Upper Warren region, where a range of population densities was observed. Altogether, 79 fungal spore classes were identified, including at least 15 genera from 14 families. Sampling across one year showed that fungi made up a larger fraction of the diet in autumn or winter, and greater diversities of fungi were consumed at these times than at other times of year. This information is essential to provide valuable ecological context for effective population management of woylies, as well as identification and conservation of important habitats.
References
Abell, S. E., Gadek, P. A., Pearce, C. A., and Congdon, B. C. (2006). Seasonal resource availability and use by an endangered tropical mycophagous marsupial. Biological Conservation 132, 533–540.| Seasonal resource availability and use by an endangered tropical mycophagous marsupial.Crossref | GoogleScholarGoogle Scholar |
Armstrong, G., and Booth, D. T. (2005). Dietary ecology of the Australian freshwater turtle (Elseya sp.: Chelonia: Chelidae) in the Burnett River, Queensland. Wildlife Research 32, 349–353.
| Dietary ecology of the Australian freshwater turtle (Elseya sp.: Chelonia: Chelidae) in the Burnett River, Queensland.Crossref | GoogleScholarGoogle Scholar |
Arnold, G. W., and Steven, D. E. (1988). Variations in distribution of western grey kangaroos, Macropus fuliginosus ocydromus, in the Tutanning Nature Reserve and their impact on adjacent farmland. Australian Wildlife Research 15, 119–128.
| Variations in distribution of western grey kangaroos, Macropus fuliginosus ocydromus, in the Tutanning Nature Reserve and their impact on adjacent farmland.Crossref | GoogleScholarGoogle Scholar |
Bennett, A. F., and Baxter, B. J. (1989). Diet of the long-nosed potoroo, Potorous tridactylus (Marsupialia: Potoroidae), in south-western Victoria. Australian Wildlife Research 16, 263–271.
| Diet of the long-nosed potoroo, Potorous tridactylus (Marsupialia: Potoroidae), in south-western Victoria.Crossref | GoogleScholarGoogle Scholar |
BOM (2018). Climate data online. Bureau of Meteorology, Australia. Available at: http://www.bom.gov.au/climate/data/ [accessed 23 January 2018].
Bougher, N. L. (1998). Fungi in scats of Gilbert’s potoroo (Potorous gilbertii) – Australia’s most critically endangered mammal. CSIRO Forestry and Forest Products, Perth.
Bougher, N. L., and Lebel, T. (2001). Sequestrate (truffle-like) fungi of Australia and New Zealand. Australian Systematic Botany 14, 439–484.
| Sequestrate (truffle-like) fungi of Australia and New Zealand.Crossref | GoogleScholarGoogle Scholar |
Bougher, N. L., and Syme, K. (1998). ‘Fungi of Southern Australia.’ (University of Western Australia Press: Perth.)
Bougher, N. L., Friend, T., and Bell, L. (2008). Fungi available to and consumed by translocated Gilbert’s potoroos: preliminary assessments at three translocation sites. Department of Environment and Conservation, Western Australia.
Bowie, F. (2007). Fungal diversity in the diet of three small mammals from French Island, Victoria. B.Sc.(Honours) Thesis, University of Melbourne.
Cai, W., and Cowan, T. (2006). SAM and regional rainfall in IPCC AR4 models: can anthropogenic forcing account for southwest Western Australian winter rainfall reduction? Geophysical Research Letters 33, L24708.
| SAM and regional rainfall in IPCC AR4 models: can anthropogenic forcing account for southwest Western Australian winter rainfall reduction?Crossref | GoogleScholarGoogle Scholar |
Calver, M. C., and Porter, B. D. (1986). Unravelling the food web: dietary analysis in modern ecology. Journal of Biological Education 20, 42–46.
| Unravelling the food web: dietary analysis in modern ecology.Crossref | GoogleScholarGoogle Scholar |
Christensen, P. E. S. (1980). The biology of Bettongia penicillata Gray, 1837, and Macropus eugenii (Desmarest, 1817) in relation to fire. Forests Department of Western Australia.
Claridge, A. W. (2002). Ecological role of hypogeous ectomycorrhizal fungi in Australian forests and woodlands. Plant and Soil 244, 291–305.
| Ecological role of hypogeous ectomycorrhizal fungi in Australian forests and woodlands.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD38XntFGrur0%3D&md5=26b97e27dea8ed851b04b4ffa2d35f40CAS |
Claridge, A. W., and Cork, S. J. (1994). Nutritional value of hypogeal fungal sporocarps for the long-nosed potoroo (Potorous tridactylus), a forest-dwelling mycophagous marsupial. Australian Journal of Zoology 42, 701–710.
| Nutritional value of hypogeal fungal sporocarps for the long-nosed potoroo (Potorous tridactylus), a forest-dwelling mycophagous marsupial.Crossref | GoogleScholarGoogle Scholar |
Claridge, A. W., and Lindenmayer, D. B. (1998). Consumption of hypogeous fungi by the mountain brushtail possum (Trichosurus caninus) in eastern Australia. Mycological Research 102, 269–272.
| Consumption of hypogeous fungi by the mountain brushtail possum (Trichosurus caninus) in eastern Australia.Crossref | GoogleScholarGoogle Scholar |
Claridge, A. W., and May, T. W. (1994). Mycophagy among Australian mammals. Australian Journal of Ecology 19, 251–275.
| Mycophagy among Australian mammals.Crossref | GoogleScholarGoogle Scholar |
Claridge, A. W., Tanton, M. T., Seebeck, J. H., Cork, S. J., and Cunningham, R. B. (1992). Establishment of ectomycorrhizae on the roots of two species of Eucalyptus from fungal spores contained in the faeces of the long-nosed potoroo (Potorous tridactylus). Australian Journal of Ecology 17, 207–217.
| Establishment of ectomycorrhizae on the roots of two species of Eucalyptus from fungal spores contained in the faeces of the long-nosed potoroo (Potorous tridactylus).Crossref | GoogleScholarGoogle Scholar |
Claridge, A. W., Robinson, A., Tanton, M. T., and Cunningham, R. B. (1993a). Seasonal production of hypogeal fungal sporocarps in a mixed-species eucalypt forest stand in south-eastern Australia. Australian Journal of Botany 41, 145–167.
| Seasonal production of hypogeal fungal sporocarps in a mixed-species eucalypt forest stand in south-eastern Australia.Crossref | GoogleScholarGoogle Scholar |
Claridge, A. W., Tanton, M. T., and Cunningham, R. B. (1993b). Hypogeal fungi in the diet of the long-nosed potoroo (Potorous tridactylus) in mixed-species and regrowth eucalypt forest stands in south-eastern Australia. Wildlife Research 20, 321–337.
| Hypogeal fungi in the diet of the long-nosed potoroo (Potorous tridactylus) in mixed-species and regrowth eucalypt forest stands in south-eastern Australia.Crossref | GoogleScholarGoogle Scholar |
Claridge, A. W., Barry, S. C., Cork, S. J., and Trappe, J. M. (2000). Diversity and habitat relationships of hypogeous fungi. II. Factors influencing the occurrence and number of taxa. Biodiversity and Conservation 9, 175–199.
| Diversity and habitat relationships of hypogeous fungi. II. Factors influencing the occurrence and number of taxa.Crossref | GoogleScholarGoogle Scholar |
Claridge, A. W., Seebeck, J. H., and Rose, R. W. (2007). ‘Bettongs, Potoroos and the Musky Rat-kangaroo.’ (CSIRO Publishing: Melbourne.)
Colgan, W., and Claridge, A. W. (2002). Mycorrhizal effectiveness of Rhizopogon spores recovered from faecal pellets of small forest-dwelling mammals. Mycological Research 106, 314–320.
| Mycorrhizal effectiveness of Rhizopogon spores recovered from faecal pellets of small forest-dwelling mammals.Crossref | GoogleScholarGoogle Scholar |
Cork, S. J., and Kenagy, G. J. (1989). Rates of gut passage and retention of hypogeous fungal spores in two forest-dwelling rodents. Journal of Mammalogy 70, 512–519.
| Rates of gut passage and retention of hypogeous fungal spores in two forest-dwelling rodents.Crossref | GoogleScholarGoogle Scholar |
Danks, M., Lebel, T., Vernes, K., and Andrew, N. (2013). Truffle-like fungi sporocarps in a eucalypt-dominated landscape: patterns in diversity and community structure. Fungal Diversity 58, 143–157.
| Truffle-like fungi sporocarps in a eucalypt-dominated landscape: patterns in diversity and community structure.Crossref | GoogleScholarGoogle Scholar |
Davis, J. E. (2005). Mycophagy in the brush-tail possum (Trichosurus vulpecula) leading to dietary overlap with the woylie (Bettongia penicillata) in Dryandra Woodland, Western Australia. B.Sc.(Honours) Thesis, Murdoch University, Perth.
Dennis, A. J. (2002). The diet of the musky rat-kangaroo, Hypsiprymnodon moschatus, a rainforest specialist. Wildlife Research 29, 209–219.
| The diet of the musky rat-kangaroo, Hypsiprymnodon moschatus, a rainforest specialist.Crossref | GoogleScholarGoogle Scholar |
Eikelboom, T. (2010). A field comparison of survey methods for estimating the population density of woylies (Bettongia penicillata) at Karakamia Wildlife Sanctuary. B.Sc.(Honours) Thesis, University Of Western Australia, Perth.
ERIN (2012). Australia’s ecoregions. Map and accompanying notes. Environmental Resources and Information Network. Department of Sustainability, Environment, Water, Population and Communities, Australia. Available at: http://www.environment.gov.au/land/nrs/science/ibra/australias-ecoregions
Fogel, R., and Trappe, J. M. (1978). Fungus consumption (mycophagy) by small mammals. Northwest Science 52, 1–30.
Garkaklis, M. J. (2001). Digging by the woylie Bettongia penicillata (Marsupialia) and its effects upon soil and landscape characteristics in a Western Australian woodland. Ph.D. Thesis, Murdoch University, Perth.
Garkaklis, M. J., Bradley, J. S., and Wooller, R. D. (1998). The effects of woylie (Bettongia penicillata) foraging on soil water repellency and water infiltration in heavy textured soils in southwestern Australia. Australian Journal of Ecology 23, 492–496.
| The effects of woylie (Bettongia penicillata) foraging on soil water repellency and water infiltration in heavy textured soils in southwestern Australia.Crossref | GoogleScholarGoogle Scholar |
Garkaklis, M. J., Bradley, J. S., and Wooller, R. D. (2003). The relationship between animal foraging and nutrient patchiness in south-west Australian woodland soils. Australian Journal of Soil Research 41, 665–673.
| The relationship between animal foraging and nutrient patchiness in south-west Australian woodland soils.Crossref | GoogleScholarGoogle Scholar |
Garkaklis, M. J., Bradley, J. S., and Wooller, R. D. (2004). Digging and soil turnover by a mycophagous marsupial. Journal of Arid Environments 56, 569–578.
| Digging and soil turnover by a mycophagous marsupial.Crossref | GoogleScholarGoogle Scholar |
Glantz, S. A. (2002). ‘Primer of Biostatistics.’ (McGraw-Hill: Sydney.)
Green, K., Tory, M. K., Mitchell, A. T., Tennant, P., and May, T. W. (1999). The diet of the long-footed potoroo (Potorous longipes). Australian Journal of Ecology 24, 151–156.
| The diet of the long-footed potoroo (Potorous longipes).Crossref | GoogleScholarGoogle Scholar |
Hammer, Ø. (2017). PAST (PAleontological STatistics) Reference Manual: version 3.16. University of Oslo, Oslo. Available at: https://folk.uio.no/ohammer/past/ [accessed 4 October 2017].
Johnson, C. N. (1994). Nutritional ecology of a mycophagous marsupial in relation to production of hypogeous fungi. Ecology 75, 2015–2021.
| Nutritional ecology of a mycophagous marsupial in relation to production of hypogeous fungi.Crossref | GoogleScholarGoogle Scholar |
Johnson, C. N., and McIlwee, A. P. (1997). Ecology of the northern bettong, Bettongia tropica, a tropical mycophagist. Wildlife Research 24, 549–559.
| Ecology of the northern bettong, Bettongia tropica, a tropical mycophagist.Crossref | GoogleScholarGoogle Scholar |
Krebs, C. J. (1999). ‘Ecological Methology.’ 2nd edn. (Addison-Welsey Educational Publishers, Inc.: Menlo Park, CA.)
Kronfeld, N., and Dayan, T. (1998). A new method of determining diets of rodents. Journal of Mammalogy 79, 1198–1202.
| A new method of determining diets of rodents.Crossref | GoogleScholarGoogle Scholar |
Lamont, B. B. (1995). Interdependence of woody plants, higher fungi and small marsupials in the context of fire. CALMscience 4, 151–158.
Lamont, B. B., Ralph, C. S., and Christensen, P. S. (1985). Mycophagous marsupials as dispersal agents for ectomycorrhizal fungi on Eucalyptus calophylla and Gastrolobium bilobum. New Phytologist 101, 651–656.
| Mycophagous marsupials as dispersal agents for ectomycorrhizal fungi on Eucalyptus calophylla and Gastrolobium bilobum.Crossref | GoogleScholarGoogle Scholar |
Lee, J. (2003). The importance of hypogeous fungi in the diet of the re-introduced brush-tailed bettong (Bettongia penicillata) at Venus Bay Conservation Park, South Australia. B.Sc.(Honours) Thesis, University of Adelaide.
McIlwee, A. P., and Johnson, C. N. (1998). The contribution of fungus to the diets of three mycophagous marsupials in Eucalyptus forests, revealed by stable isotope analysis. Functional Ecology 12, 223–231.
| The contribution of fungus to the diets of three mycophagous marsupials in Eucalyptus forests, revealed by stable isotope analysis.Crossref | GoogleScholarGoogle Scholar |
Murphy, M. T. (2009). The relationship between Bettongia penicillata ogilbyi (the woylie) and Santalum spicatum (sandalwood): implications for functional processes in Dryandra, a semi-arid woodland in Western Australia. Ph.D. Thesis, Murdoch University, Perth.
Murphy, M. T., Garkaklis, M. J., and Hardy, G. E. (2005). Seed caching by woylies Bettongia penicillata can increase sandalwood Santalum spicatum regeneration in Western Australia. Austral Ecology 30, 747–755.
| Seed caching by woylies Bettongia penicillata can increase sandalwood Santalum spicatum regeneration in Western Australia.Crossref | GoogleScholarGoogle Scholar |
Nelson, L. S., Storr, F. F., and Robinson, A. C. (1992). Plan of management for the brush-tailed bettong, Bettongia penicillata Gray, 1837 (Marsupialia, Potoroidae) in South Australia. Department of Environment and Planning, South Australia.
Nguyen, V. P., Needham, A. D., and Friend, J. A. (2005). A quantitative dietary study of the ‘critically endangered’ Gilbert’s potoroo Potorous gilbertii. Australian Mammalogy 27, 1–6.
| A quantitative dietary study of the ‘critically endangered’ Gilbert’s potoroo Potorous gilbertii.Crossref | GoogleScholarGoogle Scholar |
Norbury, G. L. (1988). Microscopic analysis of herbivore diets – a problem and a solution. Australian Wildlife Research 15, 51–57.
| Microscopic analysis of herbivore diets – a problem and a solution.Crossref | GoogleScholarGoogle Scholar |
Nuske, S. J., Vernes, K., May, T. W., Claridge, A. W., Congdon, B. C., Krockenberger, A, and Abell, S. E. (2017). Redundancy among mammalian fungal dispersers and the importance of declining specialists. Fungal Ecology 27A, 1–13.
| Redundancy among mammalian fungal dispersers and the importance of declining specialists.Crossref | GoogleScholarGoogle Scholar |
Page, M. (2009). Karakamia Wildlife Sanctuary Annual Report 2009. Australian Wildlife Conservancy, Perth.
Peintner, U., Moser, M., and Vilgalys, R. (2002). Thaxterogaster is a taxonomic synonym of Cortinarius: new combinations and new names. Mycotaxon 81, 177–184.
Richardson, K. C. (1989). Radiographic studies on the form and function of the gastrointestinal tract of the woylie (Bettongia penicillata). In ‘Kangaroos, Wallabies and Rat-Kangaroos’. (Eds G. Grigg, P. Jarman, and I. Hume.) pp. 205–215. (Surrey Beatty: Sydney.)
Robley, A. J., Short, J., and Bradley, S. (2001). Dietary overlap between the burrowing bettong (Bettongia lesueur) and the European rabbit (Oryctolagus cuniculus) in semi-arid coastal Western Australia. Wildlife Research 28, 341–349.
| Dietary overlap between the burrowing bettong (Bettongia lesueur) and the European rabbit (Oryctolagus cuniculus) in semi-arid coastal Western Australia.Crossref | GoogleScholarGoogle Scholar |
Sampson, J. C. (1971). The biology of Bettongia penicillata Gray, 1837. Ph.D. Thesis, University of Western Australia, Perth.
Strehlow, K., Bradley, J. S., Davis, J., and Friend, G. R. (2002). Short term impacts of logging on invertebrate communities in jarrah forests in south-west Western Australia. Forest Ecology and Management 162, 165–184.
| Short term impacts of logging on invertebrate communities in jarrah forests in south-west Western Australia.Crossref | GoogleScholarGoogle Scholar |
Taylor, R. J. (1992). Seasonal changes in the diet of the Tasmanian bettong (Bettongia gaimardi), a mycophagous marsupial. Journal of Mammalogy 73, 408–414.
| Seasonal changes in the diet of the Tasmanian bettong (Bettongia gaimardi), a mycophagous marsupial.Crossref | GoogleScholarGoogle Scholar |
Triola, M. M., Triola, M. F., and Roy, J. (2018). ‘Biostatistics for the Biological and Health Sciences.’ (Pearson: Boston.)
Tyndale-Biscoe, H. (2005). ‘Life of Marsupials.’ (CSIRO Publishing: Melbourne.)
Vernes, K. (2014). Seasonal truffle consumption by long-nosed bandicoots (Perameles nasuta) in a mixed rainforest–open forest community in north-eastern New South Wales. Australian Mammalogy 36, 113–115.
| Seasonal truffle consumption by long-nosed bandicoots (Perameles nasuta) in a mixed rainforest–open forest community in north-eastern New South Wales.Crossref | GoogleScholarGoogle Scholar |
Vernes, K., and Haydon, D. T. (2001). Effect of fire on northern bettong (Bettongia tropica) foraging behaviour. Austral Ecology 26, 649–659.
| Effect of fire on northern bettong (Bettongia tropica) foraging behaviour.Crossref | GoogleScholarGoogle Scholar |
Vernes, K., and McGrath, K. (2009). Are introduced black rats (Rattus rattus) a functional replacement for mycophagous native rodents in fragmented forests? Fungal Ecology 2, 145–148.
| Are introduced black rats (Rattus rattus) a functional replacement for mycophagous native rodents in fragmented forests?Crossref | GoogleScholarGoogle Scholar |
Warcup, J. H. (1980). Ectomycorrhizal associations of Australian indigenous plants. New Phytologist 85, 531–535.
| Ectomycorrhizal associations of Australian indigenous plants.Crossref | GoogleScholarGoogle Scholar |
Wayne, A. (2008). Progress report of the woylie conservation research project. Diagnosis of recent woylie (Bettongia penicillata ogilbyi) declines in southwestern Australia. Department of Environment and Conservation, Western Australia.
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 |
Wayne, A. F., Maxwell, M. A., Ward, C. G., Vellios, C. V., Wilson, I, Wayne, J. C., and Williams, M. R. (2015). Sudden and rapid decline of the abundant marsupial Bettongia penicillata in Australia. Oryx 49, 175–185.
| Sudden and rapid decline of the abundant marsupial Bettongia penicillata in Australia.Crossref | GoogleScholarGoogle Scholar |
Yeatman, G. (2010). Demographic changes of a woylie (Bettongia penicillata) population: a response to increasing density and climate drying? B.Sc.(Honours) Thesis, The University of Western Australia, Perth.
Zosky, K., Bryant, K., Calver, M. C., and Wayne, A. (2010). Do preservation methods affect the identification of dietary components from faecal samples? A case study using a mycophagous marsupial. Australian Mammalogy 32, 173–176.
| Do preservation methods affect the identification of dietary components from faecal samples? A case study using a mycophagous marsupial.Crossref | GoogleScholarGoogle Scholar |