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Marine and Freshwater Research Marine and Freshwater Research Society
Advances in the aquatic sciences
RESEARCH ARTICLE

Seasonal habitats, decadal trends in abundance and cultural values of magpie geese (Anseranus semipalmata) on coastal floodplains in the Kakadu Region, northern Australia

Peter Bayliss A D and Emma Ligtermoet B C
+ Author Affiliations
- Author Affiliations

A CSIRO Oceans and Atmosphere Business Unit, Queensland BioSciences Precinct, St Lucia, Qld 4072, Australia.

B CSIRO Tropical Ecosystems Research Centre, Land and Water Business Unit, 564 Vanderlin Drive, Berrimah, NT 0828, Australia.

C The Australian National University (ANU), Fenner School, Canberra, ACT 0200, Australia.

D Corresponding author. Email: peter.bayliss@csiro.au

Marine and Freshwater Research 69(7) 1079-1091 https://doi.org/10.1071/MF16118
Submitted: 7 April 2016  Accepted: 2 December 2016   Published: 24 February 2017

Abstract

The magpie goose is an iconic tropical species highly valued as a conservation asset and by Aboriginal people as a cultural resource. Most of the global population occurs in the Kakadu Region of northern Australia, which is at high risk from the combined impacts of invasive species and future sea-level rise. Future management responses require an increased understanding of their spatial and temporal dynamics and customary value. Historical aerial-survey data of geese and their nests in the Kakadu Region (1981–2006, 25 years) were used to characterise seasonal use of floodplains. Habitat ‘hotspots’ co-occurred with high abundance of plants that provide nesting material in the wet season and food in the dry season, particularly the bulbs of Eleocharis dulcis sedge. Goose numbers across the Northern Territory (1958–2000, n = 42 years) exhibited 20-year decadal trends coupled with similar trends in rainfall and stream flow (1954–2006), which in turn were influenced strongly by global-scale interactions between the El Niño–Southern Oscillation and Pacific Decadal Oscillation. Stream flow drives the spatial and temporal dynamics of magpie geese at regional and decadal scales through its direct influence on floodplain-vegetation dynamics. Customary harvesting practices of geese and their eggs ascertained from interviews (2011–2014) showed that their cultural value extends beyond consumption, highlighting the need to address socio-ecological contexts in future management responses.

Additional keywords: climate change, El Niño–Southern Oscillation, ENSO, invasive species, Pacific Decadal Oscillation, PDO, Ramsar, SOI, Southern Oscillation index, traditional owners, World Heritage.


References

Adams, V. M., Petty, A. M., Douglas, M. M., Buckley, Y. M., Ferdinands, K. B., Okazaki, T., Ko, D. W., and Setterfield, S. A. (2015). Distribution, demography and dispersal model of spatial spread of invasive plant populations with limited data. Methods in Ecology and Evolution 6, 782–794.
Distribution, demography and dispersal model of spatial spread of invasive plant populations with limited data.Crossref | GoogleScholarGoogle Scholar |

Allan, R. J. (2000). ENSO and climatic variability in the past 150 years. In ‘El Niño and the Southern Oscillation, Multiscale Variability and Global and Regional Impacts’. (Eds H. F. Diaz and V. Markgraf.) pp. 3–55. (Cambridge University Press: New York, NY, USA.)

Altman, J. C. (2005). Economic futures on Aboriginal Land in remote and very remote Australia: hybrid economies and joint ventures. In ‘Culture, Economy and Governance in Aboriginal Australia’. (Eds D. Austin-Broos and G. Macdonald.) pp. 121–134. (University of Sydney Press: Sydney, NSW, Australia.)

Altman, J. (2011). From Kunnanj, Fish Creek, to Mumeka, Mann River: hunter-gatherer tradition and transformation in Western Arnhem Land 1948–2009. In ‘Exploring the Legacy of the 1948 Arnhem Land Expedition’. (Eds M. Thomas and M. Neale.) pp. 113–134. (ANU ePress: Canberra, ACT, Australia.)

Anstee, J. M., Botha, E. J., Byrne, G. T., Dyce, P., and Schroeder, T. (2015). Remote sensing methods to map and monitor the condition of coastal habitats and other surrogates for biodiversity. Part A: remote sensing methods to map floodplain vegetation on Kakadu National Park. Image Processing and Analysis Report. (CSIRO Oceans and Atmosphere Flagship: Canberra, ACT, Australia.) Available at https://www.researchgate.net/publication/284383731_Remote_sensing_methods_to_map_and_monitor_the_condition_of_coastal_habitats_and_other_surrogates_for_biodiversity_Part_A_Remote_sensing_methods_to_map_floodplain_vegetation_of_the_Kakadu_National_Park [Verified 2 February 2017].

Babcock, R. C., Shears, N. T., Alcala, A. C., Barrett, N. S., Edgar, G. J., Lafferty, K. D., McClanahan, T. R., and Russ, G. R. (2010). Decadal trends in marine reserves reveal differential rates of change in direct and indirect effects. Proceedings of the National Academy of Sciences of the United States of America 107, 18256–18261.
Decadal trends in marine reserves reveal differential rates of change in direct and indirect effects.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3cXhtl2ktr7E&md5=1069cccf6955473d55c3f4db05c18d1fCAS |

Bayliss, P. (1989). Population dynamics of magpie geese in relation to rainfall and density: implications for harvest models in a fluctuating environment. Journal of Applied Ecology 26, 913–924.
Population dynamics of magpie geese in relation to rainfall and density: implications for harvest models in a fluctuating environment.Crossref | GoogleScholarGoogle Scholar |

Bayliss, P., and Choquenot, D. (2002). The numerical response: rate of increase and food limitation in herbivores and predators. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 357, 1233–1248.
The numerical response: rate of increase and food limitation in herbivores and predators.Crossref | GoogleScholarGoogle Scholar |

Bayliss, P., and Yeomans, K. M. (1990a). The seasonal distribution and abundance of magpie geese in the Northern Territory, and its relation to habitat. Australian Wildlife Research 17, 15–38.
The seasonal distribution and abundance of magpie geese in the Northern Territory, and its relation to habitat.Crossref | GoogleScholarGoogle Scholar |

Bayliss, P., and Yeomans, K. M. (1990b). Use of low-level aerial photography to correct bias in aerial survey estimates of magpie goose and whistle duck density on Northern Territory floodplains, Australia. Australian Wildlife Research 17, 1–10.
Use of low-level aerial photography to correct bias in aerial survey estimates of magpie goose and whistle duck density on Northern Territory floodplains, Australia.Crossref | GoogleScholarGoogle Scholar |

Bayliss, P., Bartolo, R., and Wasson, R. J. (2007). Decadal trends in rainfall, stream flow and aquatic ecosystems in the wet–dry tropics of the Northern Territory: influence of the ENSO–IPO interaction. In ‘Proceedings of the Greenhouse2007 Conference’, 1–5 October 2007, Sydney. (CSIRO Marine and Atmospheric Research: Melbourne, Vic., Australia.)

Bayliss, P., Bartolo, R., and van Dam, R. (2008). Chapter 4. Quantitative risk assessments for the Daly River. In ‘Ecological Risk Assessment for Australia’s Northern Tropical Rivers’. Sub-Project 2 of Australia’s Tropical Rivers: an Integrated Data Assessment and Analysis (DET18). A report to Land and Water Australia. (Eds R. Bartolo, P. Bayliss, and R. van Dam.) pp. 271–415. (Department of Environment and Water Resources, Environmental Research Institute of the Supervising Scientist, National Centre for Tropical Wetland Research: Darwin, NT, Australia.) Available at http://www.environment.gov.au/system/files/resources/054092c1-5bff-4149-abd9-93b27747e55d/files/triap-sp2-chapter-4.pdf [Verified 6 January 2017].

Bayliss, P., van Dam, R., and Bartolo, R. E. (2012). Quantitative ecological risk assessment of the Magela Creek floodplain in Kakadu National Park, Australia: comparing point source risks from the Ranger Uranium Mine to diffuse landscape-scale risks. Human and Ecological Risk Assessment 18, 115–151.
Quantitative ecological risk assessment of the Magela Creek floodplain in Kakadu National Park, Australia: comparing point source risks from the Ranger Uranium Mine to diffuse landscape-scale risks.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC38XovFGmtw%3D%3D&md5=96100cfb037aa522e0e67775be69c10fCAS |

Bayliss, P., Barber, M., Skewes, T., Dennis, D., and Planganyi, E. (2014a). Indigenous (Aboriginal and Torres Strait Islanders) coastal knowledge and research priorities: White Paper for the urban and coastal theme, National Marine Science Plan (NMSP). Available at http://frdc.com.au/environment/NMSC-WHITE/Pages/Environments.aspx [Verified 6 April 2016].

Bayliss, P., Robins, J., Buckworth, R., Dichmont, C., Deng, R., and Kenyon, R. (2014b). Quantitative risk assessment for banana prawns and barramundi. Part 3. In ‘Assessing the Water Needs of Fisheries and Ecological Values in the Gulf of Carpentaria’. (Eds P. Bayliss, R. Buckworth, and C. Dichmont.) Final report prepared for the Queensland Department of Natural Resources and Mines (DNRM), pp. 203–261. (CSIRO: Brisbane, Qld, Australia). Available at https://publications.csiro.au/rpr/download?pid=csiro:EP1410151&dsid=DS1 [Verified 12 November 2016]

Bayliss, P., Dutra, L. X. C., and Melo, L. F. C. (2015). Risks from sea level rise due to climate change. In ‘Part I. Managing Threats to Floodplain Biodiversity and Cultural Values on Kakadu National Park’. pp. 14–206. (CSIRO: Brisbane, Qld, Australia.). Available at https://publications.csiro.au/rpr/download?pid=csiro:EP152591&dsid=DS4 [Verified 6 January 2017]

Bayliss, P., Saunders, K., Dutra, L. X. C., Hilton, J., Melo, L. F. C., Woolard, F., and Prakash, M. (2018). Assessing sea level rise risks to coastal floodplains in the Kakadu Region, northern Australia, using a tidally driven hydrodynamic model. Marine and Freshwater Research 69, 1064–1078.
Assessing sea level rise risks to coastal floodplains in the Kakadu Region, northern Australia, using a tidally driven hydrodynamic model.Crossref | GoogleScholarGoogle Scholar |

Beamish, R. J., Neville, C.-E. M., and Cass, A. J. (1997). Production of Fraser River sockeye salmon (Oncorhynchus nerka) in relation to decadal-scale changes in the climate and the ocean. Canadian Journal of Fisheries and Aquatic Sciences 54, 543–554.

Beamish, R. J., Noakes, D. J., McFarlane, G. A., Klyashtorin, L., Ivanov, V. V., and Kurashov, V. (1999). The regime concept and natural trends in the production of Pacific salmon. Canadian Journal of Fisheries and Aquatic Sciences 56, 516–526.
The regime concept and natural trends in the production of Pacific salmon.Crossref | GoogleScholarGoogle Scholar |

Berkes, F., and Berkes, M. K. (2009). Ecological complexity, fuzzy logic, and holism in indigenous knowledge. Futures 41, 6–12.
Ecological complexity, fuzzy logic, and holism in indigenous knowledge.Crossref | GoogleScholarGoogle Scholar |

Berkes, F., Hughes, A., George, P. J., Preston, R. J., Cummins, B. D., and Turner, J. (1995). The persistence of Aboriginal land use: fish and wildlife harvest areas in the Hudson and James Bay Lowland, Ontario. Arctic 48, 81–93.
The persistence of Aboriginal land use: fish and wildlife harvest areas in the Hudson and James Bay Lowland, Ontario.Crossref | GoogleScholarGoogle Scholar |

Boyden, J., Walden, D., Bayliss, P., and Saalfeld, K. (2008). A GIS compendium for landscape-scale risk assessment of the Magela Creek floodplain and broader Alligator Rivers Region, NT. Supervising Scientist report 192. Supervising Scientist, Darwin, NT, Australia.

Brockwell, P. J., and Davis, R. A. (1996). ‘Introduction to Time Series and Forecasting.’ (Springer-Verlag: New York, NY, USA.)

Carter, J. L. (2008). Thinking outside the framework: equitable research partnerships for environmental research in Australia. The Geographical Journal 174, 63–75.
Thinking outside the framework: equitable research partnerships for environmental research in Australia.Crossref | GoogleScholarGoogle Scholar |

Clark, W. G., Hare, S. R., Parma, A. M., Sullivan, P. J., and Trumble, R. J. (1999). Decadal changes in growth and recruitment of Pacific halibut (Hippoglossus stenolepsis). Canadian Journal of Fisheries and Aquatic Sciences 56, 242–252.
Decadal changes in growth and recruitment of Pacific halibut (Hippoglossus stenolepsis).Crossref | GoogleScholarGoogle Scholar |

Commonwealth Government (2015). Our north, our future: White Paper on developing northern Australia. Available at https://www.cdu.edu.au/sites/default/files/the-northern-institute/docs/northern-australia-white-paper.pdf [Verified 6 April 2016].

Cope, M. (2010). Coding transcripts and diaries. In ‘Key Methods in Geography’, 2nd edn. (Eds N. Clifford, S. French, and G. Valentine.) pp. 440–452. (Sage: London, UK.)

Costanza, R., Graumlich, L., Steffen, W., Crumley, C., Dearing, J., Hibbard, K., Leemans, R., Redman, C., and Schimel, D. (2007). Sustainability or collapse: what can we learn from integrating the history of humans and the rest of nature? Ambio 36, 522–527.
Sustainability or collapse: what can we learn from integrating the history of humans and the rest of nature?Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD1cXksFKhtb4%3D&md5=09e1230e6354ab8ba6c0bdf17a71e1d2CAS |

Delaney, R., Fukuda, Y., and Saalfeld, K. (2009). Management program for the magpie goose (Anseranas semipalmata) in the Northern Territory of Australia, 2009–2014. (Northern Territory Department of Natural Resources, Environment, the Arts and Sport: Darwin, NT, Australia.) Available at http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.452.972&rep=rep1&type=pdf [Verified 6 January 2017]

Director of National Parks (2010). Kakadu National Park climate change strategy 2010–2015. Department of the Environment, Water, Heritage and the Arts, Canberra, ACT, Australia. Available at http://www.environment.gov.au/parks/climate.html [Verified 5 April 2016].

Erskine, W. D., Saynor, M. J., and Townley‐Jones, M. (2011). Temporal changes in annual rainfall in the ‘Top End’ of Australia. In ‘Hydro‐Climatology: Variability and Change’. (Eds S. W. Franks, E. Boegh, E. Blyth, D. M. Hannah, and K. K. Yilmaz.) pp. 57–62. (International Association of Hydrological Sciences: Wallingford, UK.)

Finlayson, C. M. (1993). Vegetation change and biomass on an Australian monsoonal floodplain. In ‘Wetlands and Ecotones: Studies on Land–Water Interactions’. (Eds B. Gopal, A. Hillbricht‐Ilkowska, and R. G. Wetzel.) pp. 157–171. (International Scientific Publications: New Delhi, India.)

Finlayson, C. M., Cowie, I. D., and Bailey, B. J. (1990). Characteristics of a seasonally flooded freshwater system in monsoonal Australia. In ‘Wetland Ecology and Management: Case Studies’. (Eds D. F. Whigham, R. E. Good, and J. Kvet.) pp. 141–162. (Kluwer Academic Publishers: Dordrecht, Netherlands.)

Finlayson, C. M., Lowry, J., Bellio, M. G., Nou, S., Pidgeon, R., Walden, D., Humphrey, C., and Fox, G. (2006). Biodiversity of the wetlands of the Kakadu Region, northern Australia. Aquatic Sciences 68, 374–399.
Biodiversity of the wetlands of the Kakadu Region, northern Australia.Crossref | GoogleScholarGoogle Scholar |

Finlayson, C. M. (2017). Wetland research and management in the Kakadu region of northern Australia. Marine and Freshwater Research, in press.

Folland, C. K., Parker, D. E., Colman, A. W., and Washington, R. (1999). Large-scale modes of ocean surface temperature since the late nineteenth century. In ‘Beyond El Niño: Decadal and Interdecadal Climate Variability’. (Ed. A. Navara.) pp. 73–102. (Springer-Verlag: Berlin, Germany.)

Francis, R. C., and Hare, S. R. (1994). Decadal-scale regime shifts in the large marine ecosystems of the North-east Pacific: a case for historical science. Fisheries Oceanography 3, 279–291.
Decadal-scale regime shifts in the large marine ecosystems of the North-east Pacific: a case for historical science.Crossref | GoogleScholarGoogle Scholar |

Frith, H. J., and Davies, S. J. J. F. (1961). Ecology of the magpie goose, Anseranas semipalmata Latham (Anatidae). CSIRO Wildlife Research 6, 91–141.
Ecology of the magpie goose, Anseranas semipalmata Latham (Anatidae).Crossref | GoogleScholarGoogle Scholar |

Getis, A., and Ord, J. K. (1992). The analysis of spatial association by use of distance statistics. Geographical Analysis 24, 189–206.
The analysis of spatial association by use of distance statistics.Crossref | GoogleScholarGoogle Scholar |

Glaser, M., Krause, G., Ratter, B., and Welp, M. (2008). Human/nature interaction in the anthropocene: potential of social-ecological systems analysis. GAIA–Ecological Perspectives for Science and Society 17, 77–80.

Gleckler, P. J., Santer, B. D., Domingues, C. M., Pierce, D. W., Barnett, T. P., Church, J. A., Taylor, K. E., AchutaRao, K. M., Boyer, T. P., Ishii, M., and Caldwell, P. M. (2012). Human-induced global ocean warming on multi-decadal timescales. Nature Climate Change 2, 524–529.

Green, D., Jackson, S., and Morrison, J. (2009). Risks from climate change to Indigenous communities in the tropical north of Australia. Report to the Department of Climate Change and Energy Efficiency, Canberra, ACT, Australia.

Halley, J. M. (1996). Ecology, evolution and 1/f noise. Trends in Ecology & Evolution 11, 33–37.
Ecology, evolution and 1/f noise.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC3M7itFersw%3D%3D&md5=339669e7517bb1ccfcdfa1338a48a1e3CAS |

Hare, S. R., and Francis, R. C. (1994). Climate change and salmon production in the Northeast Pacific Ocean. In ‘Climate Change and Northern Fish Populations’. Special Publication of the Canadian Journal of Fisheries and Aquatic Sciences 121. (Ed. R. J. Beamish.) pp. 357–372. (Canadian Science Publishing, NRC Research Press: Ottawa, ON, Canada.)

Hare, S. R., and Mantua, N. J. (2001). An historical narrative on the Pacific Decadal Oscillation, interdecadal climate variability and ecosystem impacts. In ‘The 20th Pacific Pink and Chum Workshop’, 22 March 2001, Seattle, WA, USA. (University of Washington.) Available at http://www.acoustics.washington.edu/fis437/resources/Week%208/Hare&Mantua%20PDO.pdf [Verified 6 January 2017]

Huntington, H. P. (2000). Using traditional ecological knowledge in science: methods and applications. Ecological Applications 10, 1270–1274.
Using traditional ecological knowledge in science: methods and applications.Crossref | GoogleScholarGoogle Scholar |

Jackson, S., Finn, M., and Featherstone, P. (2012). Aquatic resource use by Indigenous Australians in two tropical river catchments : the Fitzroy River and Daly River. Human Ecology 40, 893–908.
Aquatic resource use by Indigenous Australians in two tropical river catchments : the Fitzroy River and Daly River.Crossref | GoogleScholarGoogle Scholar |

Jackson, S., Finn, M., and Scheepers, K. (2014). The use of replacement cost method to assess and manage the impacts of water resource development on Australian indigenous customary economies. Journal of Environmental Management 135, 100–109.
The use of replacement cost method to assess and manage the impacts of water resource development on Australian indigenous customary economies.Crossref | GoogleScholarGoogle Scholar |

Johnston, A., and Prendergast, B. (1999). Assessment of the Jabiluka project: report of the Supervising Scientist to the World Heritage Committee. Supervising Scientist report 138. Supervising Scientist, Canberra, ACT, Australia.

Manly, B. F. J., and MacKenzie, D. J. (2003). CUSUM environmental monitoring in time and space. Environmental and Ecological Statistics 10, 231–247.
CUSUM environmental monitoring in time and space.Crossref | GoogleScholarGoogle Scholar |

Mann, M. E. (2007). Climate over the past two millennia. Annual Review of Earth and Planetary Sciences 35, 111–136.
Climate over the past two millennia.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2sXmtlKhtbY%3D&md5=82d1c306bf2a7eea212f0a2568f4e4b1CAS |

Mann, M. E., Bradley, R. S., and Hughes, M. K. (2000). Long-term variability in the El Niño/Southern Oscillation and associated teleconnections. In ‘El Niño and the Southern Oscillation: Multiscale Variability and Global and Regional Impacts’. (Eds H. F. Diaz and V. Markgraf.) pp. 357–412. (Cambridge University Press: Cambridge, UK.)

Mantua, N. J., Hare, S. R., Zhang, Y., Wallace, J. M., and Francis, R. C. (1997). A Pacific interdecadal climate oscillation with impacts on salmon production. Bulletin of the American Meteorological Society 78, 1069–1079.
A Pacific interdecadal climate oscillation with impacts on salmon production.Crossref | GoogleScholarGoogle Scholar |

McBride, J. L., and Nicholls, N. (1983). Seasonal relationships between Australian rainfall and the Southern Oscillation. Monthly Weather Review 111, 1998–2004.
Seasonal relationships between Australian rainfall and the Southern Oscillation.Crossref | GoogleScholarGoogle Scholar |

McFarlane, G. A., King, J. R., and Beamish, R. J. (2000). Have there been recent changes in climate? Ask the fish. Progress in Oceanography 47, 147–169.
Have there been recent changes in climate? Ask the fish.Crossref | GoogleScholarGoogle Scholar |

McGregor, S., Lawson, V., Christophersen, P., Kennett, R., Boyden, J., Bayliss, P., Liedloff, A., McKaige, B., and Andersen, A. N. (2010). Indigenous wetland burning: conserving natural and cultural resources in Australia’s World Heritage-listed Kakadu National Park. Human Ecology 38, 721–729.
Indigenous wetland burning: conserving natural and cultural resources in Australia’s World Heritage-listed Kakadu National Park.Crossref | GoogleScholarGoogle Scholar |

McMaster, D., Adams, V., Setterfield, S. A., McIntyre, D., and Douglas, M. M. (2014). Para grass management and costing trial within Kakadu National Park. In ‘Proceedings of the 19th Australasian Weeds Conference’, September 2014, Hobart, Tas., Australia. (Ed. M. Baker). pp. 129–133. (Tasmanian Weeds Society: Hobart, Tas., Australia.) Available at http://www.caws.org.au/awc/2014/awc201411291.pdf [Verified 6 January 2017].

Mitchell, A. (2005). ‘The ESRI Guide to GIS Analysis. Vol. 2. Spatial Measurements and Statistics’ (ESRI Press: Redlands, CA, USA.)

Morton, S. R., Brennan, K. D., and Armstrong, M. D. (1990). Distribution and abundance of magpie geese, Anseranas semipalmata, in the Alligator Rivers Region, Northern Territory. Australian Journal of Ecology 15, 307–320.
Distribution and abundance of magpie geese, Anseranas semipalmata, in the Alligator Rivers Region, Northern Territory.Crossref | GoogleScholarGoogle Scholar |

Morton, S., Brennan, K., and Armstrong, M. (1991). Distribution and abundance of waterbirds in the Alligator Rivers Region, Northern Territory. Open file record 86. Supervising Scientist for the Alligator Rivers Region, Canberra, ACT, Canberra.

Nicholls, N. (1992). Historical El Niño/Southern Oscillation variability in the Australian region. In ‘El Niño, Historical and Paleoclimatic Aspects of the Southern Oscillation Index’. (Eds H. F. Diaz and V. Markgraf.) pp. 151–174. (Cambridge University Press: Cambridge, UK.)

Nigam, S., Barlow, M., and Berbery, E. H. (1999). Analysis links pacific decadal variability to drought and streamflow in the United States. Transactions – American Geophysical Union 80, 621–625.
Analysis links pacific decadal variability to drought and streamflow in the United States.Crossref | GoogleScholarGoogle Scholar |

Nye, E. R., Dickman, C. R., and Kingsford, R. T. (2007). A wild goose chase: temporal and spatial variation in the distribution of the magpie goose (Anseranas semipalmata) in Australia. Emu 107, 28–37.
A wild goose chase: temporal and spatial variation in the distribution of the magpie goose (Anseranas semipalmata) in Australia.Crossref | GoogleScholarGoogle Scholar |

Petheram, C., Gallant, J., Wilson, P., Stone, P., Eades, G., Roger, L., Read, A., Tickell, S., Commander, P., Moon, A., McFarlane, D., and Marvanek, S. (2014). Northern rivers and dams: a preliminary assessment of surface water storage potential for northern Australia. (CSIRO: Canberra, ACT, Australia.) Available at https://publications.csiro.au/rpr/pub?pid=csiro:EP147168 [Verified 2 February 2017].

Pettit, N. E., Bayliss, P., and Bartollo, R. (2018). Dynamics of plant communities and the impact of saltwater intrusion on the floodplains of Kakadu National Park. Marine and Freshwater Research 67, 1124–1133.
Dynamics of plant communities and the impact of saltwater intrusion on the floodplains of Kakadu National Park.Crossref | GoogleScholarGoogle Scholar |

Petty, A. M., Werner, P. A., Lehmann, C. E. R., Riley, J. E., Banfal, D. S., and Elliot, L. P. (2007). Savanna responses to feral buffo in Kakadu National Park, Australia. Ecological Monographs 77, 441–463.
Savanna responses to feral buffo in Kakadu National Park, Australia.Crossref | GoogleScholarGoogle Scholar |

Power, S., Tseitkin, F., Mehta, V., Torok, S., and Lavery, B. (1999). Decadal climate variability in Australia during the 20th century. International Journal of Climatology 19, 169–184.
Decadal climate variability in Australia during the 20th century.Crossref | GoogleScholarGoogle Scholar |

Power, S., Haylock, M., Colman, R., and Wang, X. (2006). The predictability of interdecadal changes in ENSO activity and ENSO teleconnections. Journal of Climate 19, 4755–4771.
The predictability of interdecadal changes in ENSO activity and ENSO teleconnections.Crossref | GoogleScholarGoogle Scholar |

Pusey, B., Kennard, M., Hutchinson, M., Sheldon, F., Stein, J., Olden, J., and McKay, S. (2009). Ecohydrological regionalisation of Australia: a tool for management and science. Technical report to Land and Water Australia, and the Australian Rivers Institute, Griffith University, Brisbane, Qld, Australia.

PWCNT (2003). Management program for magpie goose (Anseranas semipalmata) in the Northern Territory of Australia: 2003–2007. Parks and Wildlife Commission of the Northern Territory. Internal report. Available at http://www.ibrarian.net/navon/paper/Magpie_Goose_Management_Program.pdf?paperid=8022824 [Verified on 4 April 2016].

Reid, D. D., Robbins, W. D., and Peddemors, V. M. (2011). Decadal trends in shark catches and effort from the New South Wales, Australia, shark meshing program 1950–2010. Marine and Freshwater Research 62, 676–693.
Decadal trends in shark catches and effort from the New South Wales, Australia, shark meshing program 1950–2010.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3MXnvFanur8%3D&md5=baec98d8f124a5ea8d99fc1a89159deeCAS |

Rodrigo, F. S., Esteban-Parra, M. J., Pozo-Vazquez, D., and Castro-Diez, Y. (2000). Rainfall variability in southern Spain on decadal to centennial time scales. International Journal of Climatology 20, 721–732.
Rainfall variability in southern Spain on decadal to centennial time scales.Crossref | GoogleScholarGoogle Scholar |

Rose, D. B. (2002). ‘Country of the Heart: an Indigenous Australian Homeland.’ (Aboriginal Studies Press for the Australian Institute of Aboriginal and Torres Strait Islander Studies: Canberra, ACT, Australia.)

Rudnick, D. L., and Davis, R. E. (2003). Red noise and regime shifts. Deep-Sea Research 50, 691–699.
Red noise and regime shifts.Crossref | GoogleScholarGoogle Scholar |

Russell-Smith, J., Lucas, D., Gapindi, M., Gunbunuka, B., Kapirigi, N., Namingum, G., Lucas, K., Giuliani, P., and Chaloupka, G. (1997). Aboriginal resource utilization and fire management practice in western Arnhem Land, monsoonal northern Australia: notes for prehistory, lessons for the future. Human Ecology 25, 159–195.
Aboriginal resource utilization and fire management practice in western Arnhem Land, monsoonal northern Australia: notes for prehistory, lessons for the future.Crossref | GoogleScholarGoogle Scholar |

Saalfeld, W. K. (1990). Aerial survey of magpie goose populations and nesting in the Top End of the Northern Territory: wet season 1990. Technical report number 50. Conservation Commission of the Northern Territory, Darwin, NT, Australia.

Sano, M., Xu, C., and Nakatsuka, T. (2012). A 300-year Vietnam hydroclimate and ENSO variability record reconstructed from tree ring δ18O. Journal of Geophysical Research 117, D12115.
A 300-year Vietnam hydroclimate and ENSO variability record reconstructed from tree ring δ18O.Crossref | GoogleScholarGoogle Scholar |

Setterfield, S. A., Douglas, M. M., Petty, A. M., Bayliss, P., Ferdinands, K. B., and Winderlich, S. (2014). Weeds in protected areas: floodplain weeds in Australia’s Kakadu National Park. In ‘Plant Invasions in Protected Areas: Patterns, Problems and Challenges’. (Eds L. C. Foxcroft, D. M. Richardson, P. Pysek, and P. Genovesi.) pp. 167–189. Springer series in Invasion Ecology. (Springer: Berlin, Germany.)

Suppiah, R., and Hennessy, K. J. (1996). Trends in the intensity and frequency of heavy rainfall in tropical Australia and links with the Southern Oscillation. Australian Meteorological Magazine 45, 1–17.

Taylor, J. A., and Tulloch, D. (1985). Rainfall in the wet–dry tropics: extreme events at Darwin and similarities between years during the period 1870–1983. Australian Journal of Ecology 10, 281–295.
Rainfall in the wet–dry tropics: extreme events at Darwin and similarities between years during the period 1870–1983.Crossref | GoogleScholarGoogle Scholar |

Toussaint, S. (2014). Fishing for fish and for Jaminyjarti in northern Aboriginal Australia. Oceania 84, 38–51.
Fishing for fish and for Jaminyjarti in northern Aboriginal Australia.Crossref | GoogleScholarGoogle Scholar |

Traill, L. W. (2009). Conservation of north Australian magpie geese Anseranus semipalmata populations under global change. Ph.D. Thesis, University of Adelaide, SA, Australia. Available at https://digital.library.adelaide.edu.au/dspace/bitstream/2440/57035/8/02whole.pdf [Verified 18 June 2016].

Traill, L. W., and Brook, B. (2011). An aggregative response of the tropical Australian magpie goose (Anseranas semipalmata) to seasonal floodplains. Journal of Tropical Ecology 27, 171–180.
An aggregative response of the tropical Australian magpie goose (Anseranas semipalmata) to seasonal floodplains.Crossref | GoogleScholarGoogle Scholar |

Traill, L. W., Bradshaw, C. J., Delean, S., and Brook, B. W. (2010). Wetland conservation and sustainable use under global change: a tropical Australian case study using magpie geese. Ecography 33, 818–825.
Wetland conservation and sustainable use under global change: a tropical Australian case study using magpie geese.Crossref | GoogleScholarGoogle Scholar |

Tremblay, P. (2010). The impact of climate change on Australian tourism destinations: developing adaptation and response strategies for the Kakadu/Top End region. In ‘Kakadu National Park Landscape Symposia Series 2007–2009. Symposium 4: Climate Change’, 6–7 August 2008, Gagudju Crocodile Holiday Inn Kakadu National Park, NT, Australia. (Ed. S. Winderlich.) Internal report 567, pp. 37–41. Supervising Scientist, Darwin, NT, Australia.

Trenberth, K. E. (1997). The definition of El Niño. Bulletin of the American Meteorological Society 78, 2771–2777.
The definition of El Niño.Crossref | GoogleScholarGoogle Scholar |

Tulloch, D. G., and McKean, J. L. (1983). Magpie goose population on the coastal plains of the Northern Territory (1958–1980). Corella 7, 32–36.

van Dam, R., Bartolo, R., and Bayliss, P. (2006). Ecological risk assessments of key threats to Australia’s tropical rivers: overview, proposed framework and methodologies for the Tropical Rivers Inventory and Assessment project. Internal report 517, June. (Supervising Scientist: Darwin, NT, Australia.) Available at https://www.environment.gov.au/system/files/resources/e9b9b8a0-b022-436a-bce0-58f63d22bb3a/files/ir517.pdf [Verified 6 January 2017]

Walsh, F. J., Dobson, P. V., and Douglas, J. C. (2013). Anpernirrentye: a framework for enhanced application of indigenous ecological knowledge in natural resource management. Ecology and Society 18, art18.
Anpernirrentye: a framework for enhanced application of indigenous ecological knowledge in natural resource management.Crossref | GoogleScholarGoogle Scholar |

Wasson, R. J., and Bayliss, P. (2010). River flow and climate in the ‘Top End’ of Australia for the last 1000 years, and the Asian–Australian monsoon. In ‘Kakadu National Park Landscape Symposia Series 2007–2009. Symposium 4: Climate Change’, 6–7 August 2008, Jabiru, NT, Australia. (Ed. S. Winderlich.) pp. 15–36. (Supervising Scientist: Darwin, NT, Australia.) Available at https://www.environment.gov.au/system/files/resources/2d60ca79-da7a-415f-aa1c-2ef01819f630/files/ir567.pdf [Verified 6 January 2017]

Wheeler, M. C., and McBride, J. L. (2005). Australian-Indonesian monsoon. In ‘Intraseasonal Variability in the Atmosphere–Ocean–Climate System’. (Eds W. K.-L. Lau and D. Waliser.) pp. 125–173. (Springer-Praxis: Chichester, UK.)

Whitehead, P. J., and Saalfeld, K. (2000). Nesting phenology of magpie geese (Anseranas semipalmata) in monsoonal northern Australia: responses to antecedent rainfall. Journal of Zoology 251, 495–508.
Nesting phenology of magpie geese (Anseranas semipalmata) in monsoonal northern Australia: responses to antecedent rainfall.Crossref | GoogleScholarGoogle Scholar |

Wilson, B. A., Whitehead, P. J., and Brocklehurst, P. S. (1991). Classification, distribution and environmental relationships of coastal floodplain vegetation, Northern Territory, Australia, March–May 1990. Technical memorandum 91/2, Conservation Commission of the Northern Territory, Land Conservation Unit, Palmerston, NT, Australia.