Profiles

Chris Johnson

UTAS Home Professor Chris Johnson
Chris Johnson

Chris Johnson

Professor

Room 342, Life Sciences Building, Sandy Bay Campus

+61 3 6226 6634 (phone)

+61 3 6226 2745 (fax)

C.N.Johnson@utas.edu.au

What lessons can we learn from the mistakes of the past? How does the introduction of an alien species affect an ecosystem? What impact does extinction have on other species? And what can we do about it?

Ecologist Professor Chris Johnson and his students are addressing these questions. By studying the past, and monitoring the present, they seek to develop a deep understanding of the intricacies of our ecosystem. Their goal is to maintain, or in many cases reset, the balance.

"...the puzzle is really an ecological puzzle to try to understand what's changed in the ecology of the North, or the ecology of feral cats that might mean that they now might be having an impact (on small native mammal populations)..."

Chris Johnson - September 2014

The domino effect of environmental change

When humans first set foot on the Australian continent 50,000 years ago, they triggered a chain of events that would change our environment forever.

As a top line predator, humans hunted and the native megafauna became extinct. These giant mammals, up to the size of rhino and elephants, had eaten huge volumes of foliage and grasses. Without them, the ground litter built up creating fuel for fire and landscapes started to burn.

Research has found that as the megafauna declined, the amount of charcoal increased in some environments. Fire then changed the flora and the domino effect continued through the whole ecosystem.

The effects of the introduction of a new predator and the extinction of these species are still unfolding today.

'My research is concerned with everything that has happened in our ecosystem since people arrived. I study introduced species, threatened species and extinction. I am particularly interested in the trophic cascade, or domino effect, created by the arrival or disappearance of a species.'

'Looking back isn't just about seeing what went wrong and feeling sad about it. It shows us the broader implications of loss of species. This knowledge can help us reset the balance in our ecosystems today and hopefully stop extinctions in the future.'

'A good example is the loss of the Thylacine on mainland Australia. There is evidence that the dingo, introduced from Asia some 3000 years ago, is playing a beneficial role in the ecosystem by taking up the position once occupied by this top-level predator.

'This can then inform our decisions on management of the dingo. Dingoes are currently culled in many areas because of their impact on agricultural flocks.

'I am working with farmers on an alternative to culling. We are trialing the use of guardian dogs to protect flocks from dingoes. Guardian dogs allow farmers to organically raise their flocks. It is a solution that slots straight into their business models.

'The flow on effect is a stable dingo population that keeps feral predators in check. Foxes and cats are killing our native mammals, such as the bilby and the bettong. 

'The bettong could be playing an important role in keeping bushfire at bay. The way they forage appears to reduce fuel on the forest floor by covering and burying leaf matter in soil.

'Just like the loss of the megafauna from the introduction of a new predator 50,000 years ago, the introduction of foxes and cats in the present could again increase our continent's propensity to burn.'

'Perhaps this time, with the knowledge that any small change in an ecosystem can have surprising consequences, we'll have a chance to stop that from happening.'

Professor Chris Johnson is an ecologist and conservation biologist, and an expert on mammals. His research investigates many problems that are relevant to the conservation of biodiversity, in four main themes: (i) the causes of extinction of species in prehistory and the recent past; (ii) the effects on ecosystems of top predators and large herbivores, and the ecological consequences of loss of such species; (iii) the environmental history of Australia; and (iv) the management of threatened and invasive species of wildlife. Professor Johnson has written more than 140 scientific papers and a book on many aspects of the ecology and conservation of wildlife, and received awards including the Eureka Prize for Environmental Research and the Australian Ecology Research Award.

Career summary

Qualifications

DegreeTitle of ThesisUniversityCountryDate of Award
PhDEcology, Social Behaviour and Reproductive Success in a Population of Red-necked WallabiesUniversity of New EnglandAustralia1986

B. Natural Resources (2.1 Class hons)
 
University of New England

Australia

1980

Biography

Chris Johnson studied for his Bachelor and Doctoral degrees at the University of New England in Armidale, where he did research on the behaviour and ecology of kangaroos and wallabies. After graduation he worked for the Conservation Commission of the Northern Territory in Alice Springs and the Queensland National Parks and Wildlife in Rockhampton, studying endangered species such as the bilby and northern hairy-nosed wombat, and the Australian National University where he did research on the evolution of sex ratios in mammals. He also worked at the University of Cambridge as a visitor with the Large Animal Research Group. He then took up an ARC Queen Elizabeth II Fellowship at the University of Tasmania in Hobart, where he studied complex interactions between marsupials, fire and fungi in Tasmanian forests. At the end of this fellowship he moved from Hobart to a lecturing position at James Cook University in Townsville, where he remained for 18 years and became a Professor. During this period he also held visiting positions at the Australian National University and the University of Sydney. He returned to the University of Tasmania in 2011 as Professor of Wildlife Conservation.

Research Themes

Chris Johnson's research aligns with the University's research theme ofEnvironment, Resources and Sustainability. His research investigates many problems that are relevant to the conservation of biodiversity in Australia and globally, in four main areas. First, he studies the causes of extinction of species in the past, both in prehistory and more recently. He has completed seminal studies on the causes of extinction of 'megafauna' (animals like mammoths, diprotodons and giant kangaroos) over the last 50,000 years, finding new evidence that the impacts of early human populations were responsible for the disappearance of these animals. His work has also clarified our understanding of the reasons for decline of smaller wildlife in the recent past: many extinctions have been caused by two introduced predators, the red fox and feral cats. Second, he aims to understand the effects that large herbivores and top predators have on ecosystems, and to assess the ecological consequences of loss of such species. This work extends from understanding the ecological changes that followed the megafaunal extinctions, showing that in some parts of Australia the structure of vegetation and the activity of fire changed dramatically in consequence of loss of big herbivores, to studies of the effects of the dingo and Tasmanian devil on biodiversity in contemporary Australia. This work on predators has contributed to a re-evaluation of the ecological role and wise management of the dingo in Australia — replacing the attitude that it is an introduced pest with an ecological view that the dingo as a top predator is essential for sustaining biodiversity in Australian ecosystems. Third, he studies the environmental history of Australia, with a focus on the effects of changes in the Aboriginal population of Australia in prehistory, fire history, and the impacts of changing land use on wildlife.  Finally, he has a strong interest in research on the management of threatened species of wildlife, and on innovative strategies for reducing the impacts on biodiversity of invasive species like feral cats and red foxes.

Memberships

Other

  • 2011-current - Chair, Scientific Advisory Committee to the Save the Tasmanian Devil Program (Tasmanian Department of Primary Industries, Parks, Water and Environment)
  • 2009-current - Chair, Australasian Marsupial and Monotreme Specialist Group, IUCN Species Survival Commission
  • 2010-current - Member Science Advisory Network to the Australian Wildlife Conservancy
  • 2011-current - Fox Technical Advisory Panel, Tasmanian Department of Primary Industries, Parks, Water and Environment
  • Cat Management Reference Group, advising Tasmanian Minister for Primary Industries and Water
  • 2011-current - Member, University of Tasmania Animal Ethics Committee
  • Vice President, Australian Mammal Society
  • Handling Editor, Oecologia

Teaching

Conservation, biodiversity, threatened species, invasive species, vertebrate pests

Teaching expertise

Expertise in development and co-ordination of advancing teaching in wildlife conservation and management.

Teaching responsibility

KZA360 - Conservation Biology and Wildlife Management

Research Appointments

  • 2011 - Australia Research Council (ARC) Australia professorial Fellowship

View more on Professor Christopher Johnson in WARP

Expertise

  • Conservation of biodiversity
  • Biology of marsupials
  • Management of threatened and  invasive species of wildlife
  • Population and community ecology
  • Landscape and ecological restoration

Awards

  • 2013 - Eureka Prize for Environmental Research (with Michael Letnic, Euan Ritchie, Arian Wallach & Adam O'Neill)
  • 2013 - University of Tasmania Vice-Chancellor's Award for Internationally Recognised Research Excellence
  • 2012 - Australian Ecology Research Award, Ecological Society of Australia, for 'recognising excellence in research in Australian ecology, for a specific body of recent work by a mid-career researcher'
  • 2008 - Ellis Troughton Memorial Award and Medal, Australian Mammal Society, for significant scientific contribution to Australian mammalogy
  • 2007 - Whitley Medal, Royal Zoological Society of New South Wales, for '…best book on the natural history of Australian animals published during the previous year'

Collaboration

Professor Johnson is currently involved in the following collaborations:

  • With the Australian Wildlife Conservancy (and other partners), investigating causes of declines in native small mammals across northern Australia and finding ways to manage landscapes for recovery of mammalian biodiversity;
  • With the University of Adelaide and others, developing databases and quantitative methods to  determine the timing of extinction in prehistory in Australia and elsewhere;
  • With researchers from the Australian National University, Netherlands Institute for Ecology, University of Maine and others, investigating the effects of extinction of giant herbivores on global vegetation and fire.

Research Fields

  • Terrestrial Ecology (060208)
  • Wildlife and Habitat Management (050211)
  • Conservation and Biodiversity (050202)
  • Community Ecology (060202)
  • Population Ecology (060207)
  • Behavioural Ecology (060201)
  • Palaeoecology (060206)
  • Ecological Physiology (060203)
  • Invasive Species Ecology (050103)
  • Biogeography and Phylogeography (060302)
  • Vertebrate Biology (060809)
  • Marine and Estuarine Ecology (incl. Marine Ichthyology) (060205)
  • Speciation and Extinction (060311)
  • Population, Ecological and Evolutionary Genetics (060411)
  • Animal Behaviour (060801)
  • Landscape Ecology (050104)
  • Host-Parasite Interactions (060307)
  • Geochronology (040303)
  • Fisheries Sciences (070499)
  • Zoology (060899)
  • Environmental Science and Management (050299)
  • Animal Physiology - Biophysics (060601)
  • Evolutionary Impacts of Climate Change (060306)
  • Environmental Management (050205)
  • Aboriginal and Torres Strait Islander Environmental Knowledge (050201)
  • Ecological Impacts of Climate Change (050101)

Research Impact

  • Flora, Fauna and Biodiversity at Regional or Larger Scales (960805)
  • Forest and Woodlands Flora, Fauna and Biodiversity (960806)
  • Flora, Fauna and Biodiversity of environments (960899)
  • Fisheries - Wild Caught (830299)
  • Ecosystem Assessment and Management at Regional or Larger Scales (960501)
  • Farmland, Arable Cropland and Permanent Cropland Flora, Fauna and Biodiversity (960804)
  • Marine Flora, Fauna and Biodiversity (960808)
  • Sparseland, Permanent Grassland and Arid Zone Flora, Fauna and Biodiversity (960811)
  • Control of Pests, Diseases and Exotic Species at Regional or Larger Scales (960405)
  • Ecosystem Adaptation to Climate Change (960305)
  • Climate Variability (excl. Social Impacts) (960304)
  • Climate Change Adaptation Measures (960301)
  • Ecosystem Assessment and Management of Forest and Woodlands Environments (960505)
  • Disease Distribution and Transmission (incl. Surveillance and Response) (920404)
  • Animal Production and Animal Primary Products (839999)
  • Fresh, Ground and Surface Water Flora, Fauna and Biodiversity (960807)
  • Remnant Vegetation and Protected Conservation Areas at Regional or Larger Scales (961308)
  • Livestock Raising (830399)
  • Ecosystem Assessment and Management (960599)
  • Mountain and High Country Flora, Fauna and Biodiversity (960810)
  • Control of Pests, Diseases and Exotic Species in Mountain and High Country Environments (960409)
  • Urban and Industrial Flora, Fauna and Biodiversity (960812)
  • Rural Water Evaluation (incl. Water Quality) (960608)
  • Expanding Knowledge in History and Archaeology (970121)
  • Coastal and Estuarine Flora, Fauna and Biodiversity (960802)
  • Forest and Woodlands Soils (961403)
  • Forest and Woodlands Land Management (960906)
  • Natural Hazards in Forest and Woodlands Environments (961004)
  • Expanding Knowledge in the Biological Sciences (970106)
  • Coastal and Estuarine Soils (961401)
  • Rehabilitation of Degraded Coastal and Estuarine Environments (961201)

Publications

Total publications

92

Highlighted publications

(10 outputs)
YearTypeCitationAltmetrics
2012Journal ArticleRule S, Brook BW, Haberle SG, Turney CSM, Kershaw AP, et al., 'The aftermath of megafaunal extinction: ecosystem transformation in Pleistocene Australia', Science, 335, (6075) pp. 1483-1486. ISSN 0036-8075 (2012) [Refereed Article]

DOI: 10.1126/science.1214261 [eCite] [Details]

Citations: Scopus - 105Web of Science - 99

Tweet

2011Journal ArticleJohnson CN, Brook BW, 'Reconstructing the dynamics of ancient human populations from radiocarbon dates: 10 000 years of population growth in Australia', Royal Society of London. Proceedings. Biological Sciences, 278, (1725) pp. 3748-3754. ISSN 0962-8452 (2011) [Refereed Article]

DOI: 10.1098/rspb.2011.0343 [eCite] [Details]

Citations: Scopus - 26Web of Science - 27

Tweet

2011Journal ArticleWoinarski JCZ, Legge S, Fitzsimons JA, Traill BJ, Burbidge AA, et al., 'The disappearing mammal fauna of northern Australia: context, cause, and response ', Conservation Letters, 4, (3) pp. 192-201. ISSN 1755-263X (2011) [Refereed Article]

DOI: 10.1111/j.1755-263X.2011.00164.x [eCite] [Details]

Citations: Scopus - 101Web of Science - 90

Tweet

2009Journal ArticleJohnson CN, 'Ecological consequences of Late Quaternary extinctions of megafauna', Royal Society of London. Proceedings. Biological Sciences, 276, (1667) pp. 2509-2519. ISSN 0962-8452 (2009) [Refereed Article]

DOI: 10.1098/rspb.2008.1921 [eCite] [Details]

Citations: Scopus - 96Web of Science - 93

Tweet

2009Journal ArticleRitchie EG, Johnson CN, 'Predator interactions, mesopredator release and biodiversity conservation', Ecology Letters, 12, (9) pp. 982-998. ISSN 1461-023X (2009) [Refereed Article]

DOI: 10.1111/j.1461-0248.2009.01347.x [eCite] [Details]

Citations: Scopus - 293Web of Science - 272

Tweet

2009Journal ArticleVanDerWal J, Shoo LP, Johnson CN, Williams SE, 'Abundance and the Environmental Niche: Environmental Suitability Estimated from Niche Models Predicts the Upper Limit of Local Abundance ', The American Naturalist, 174, (2) pp. 1-10. ISSN 0003-0147 (2009) [Refereed Article]

DOI: 10.1086/600087 [eCite] [Details]

Citations: Scopus - 134Web of Science - 128

Tweet

2007Journal ArticleJohnson CN, Isaac JL, Fisher DO, 'Rarity of a top predator triggers continent-wide collapse of mammal prey: Dingoes and marsupials in Australia ', Proceedings of The Royal Society : Biological Sciences, 274, (1608) pp. 341-346. ISSN 0962-8452 (2007) [Refereed Article]

DOI: 10.1098/rspb.2006.3711 [eCite] [Details]

Citations: Scopus - 167Web of Science - 153

Tweet

2006BookJohnson CN, 'Australia's Mammal Extinctions : A 50,000 year history', Cambridge University Press, Port Melbourne, pp. 288. ISBN 0521686601 (2006) [Authored Research Book]

[eCite] [Details]

1998Journal ArticleJohnson CN, 'Species extinction and the relationship between distribution and abundance', Nature: International Weekly Journal of Science, 394, (16 July 1998) pp. 272-274. ISSN 0028-0836 (1998) [Refereed Article]

DOI: 10.1038/28385 [eCite] [Details]

Citations: Scopus - 123Web of Science - 117

Tweet

1996Journal ArticleJohnson CN, 'Interactions between mammals and ectomycorrhiza fungi', Trends in Ecology & Evolution, 11, (12) pp. 503-507. ISSN 0169-5347 (1996) [Refereed Article]

DOI: 10.1016/S0169-5347(96)10053-7 [eCite] [Details]

Citations: Scopus - 106Web of Science - 97

Tweet

Journal Article

(84 outputs)
YearCitationAltmetrics
2016Andersen GE, Johnson CN, Jones ME, 'Sympatric predator odour reveals a competitive relationship in size-structured mammalian carnivores', Behavioral Ecology and Sociobiology pp. 1-11. ISSN 0340-5443 (2016) [Refereed Article]

DOI: 10.1007/s00265-016-2189-9 [eCite] [Details]

Co-authors: Andersen GE; Jones ME

Tweet

2016Leahy L, Legge SM, Tuft K, McGregor HW, Barmuta LA, et al., 'Amplified predation after fire suppresses rodent populations in Australia's tropical savannas', Wildlife Research, 42, (8) pp. 705-716. ISSN 1035-3712 (2016) [Refereed Article]

DOI: 10.1071/WR15011 [eCite] [Details]

Co-authors: Leahy L; McGregor HW; Barmuta LA; Jones ME

Tweet

2016Simpson K, Johnson CN, Carver S, 'Sarcoptes scabiei: the mange mite with mighty effects on the common wombat (Vombatus ursinus)', PLOS One, 11, (3) Article e0149749. ISSN 1932-6203 (2016) [Refereed Article]

DOI: 10.1371/journal.pone.0149749 [eCite] [Details]

Citations: Scopus - 2Web of Science - 2

Co-authors: Simpson K; Carver S

Tweet

2015Prowse TAA, Correll RA, Johnson CN, Prideaux GJ, Brook BW, 'Empirical tests of harvest-induced body-size evolution along a geographic gradient in Australian macropods', Journal of Animal Ecology, 84 pp. 299-309. ISSN 0021-8790 (2015) [Refereed Article]

DOI: 10.1111/1365-2656.12273 [eCite] [Details]

Citations: Scopus - 1

Tweet

2015Fancourt BA, Bateman BL, VanDerWal J, Nicol SC, Hawkins CE, et al., 'Testing the role of climate change in species decline: is the eastern quoll a victim of a change in the weather?', PLoS ONE, 10, (6) Article e0129420. ISSN 1932-6203 (2015) [Refereed Article]

DOI: 10.1371/journal.pone.0129420 [eCite] [Details]

Citations: Scopus - 1Web of Science - 1

Co-authors: Fancourt BA; Hawkins CE; Jones ME

Tweet

2015Lawes MJ, Fisher DO, Johnson CN, Blomberg SP, Frank ASK, et al., 'Correlates of recent declines of rodents in Northern and Southern Australia: habitat structure is critical', PLoS ONE, 10, (6) Article e0130626. ISSN 1932-6203 (2015) [Refereed Article]

DOI: 10.1371/journal.pone.0130626 [eCite] [Details]

Citations: Scopus - 1Web of Science - 1

Co-authors: Frank ASK

Tweet

2015McGregor H, Legge S, Jones ME, Johnson CN, 'Feral cats are better killers in open habitats, revealed by animal-borne video', PLoS ONE, 10, (8) Article e0133915. ISSN 1932-6203 (2015) [Refereed Article]

DOI: 10.1371/journal.pone.0133915 [eCite] [Details]

Citations: Scopus - 4Web of Science - 4

Co-authors: McGregor H; Jones ME

Tweet

2015McGregor HW, Legge S, Potts J, Jones ME, Johnson CN, 'Density and home range of feral cats in north-western Australia', Wildlife Research, 42, (3) pp. 223-231. ISSN 1035-3712 (2015) [Refereed Article]

DOI: 10.1071/WR14180 [eCite] [Details]

Citations: Scopus - 7Web of Science - 7

Co-authors: McGregor HW; Jones ME

Tweet

2015Newsome TM, Ballard G-A, Crowther MS, Dellinger JA, Fleming PJS, et al., 'Resolving the value of the dingo in ecological restoration', Restoration Ecology, 23, (3) pp. 201-208. ISSN 1061-2971 (2015) [Refereed Article]

DOI: 10.1111/rec.12186 [eCite] [Details]

Citations: Scopus - 6Web of Science - 6

Tweet

2015Johnson CN, Rule S, Haberle SG, Turney CSM, Kershaw AP, et al., 'Using dung fungi to interpret decline and extinction of megaherbivores: problems and solutions', Quaternary Science Reviews, 110 pp. 107-113. ISSN 0277-3791 (2015) [Refereed Article]

DOI: 10.1016/j.quascirev.2014.12.011 [eCite] [Details]

Citations: Scopus - 5

Co-authors: Brook BW

Tweet

2015Prowse TAA, Johnson CN, Cassey P, Bradshaw CJA, Brook BW, 'Ecological and economic benefits to cattle rangelands of restoring an apex predator', Journal of Applied Ecology, 52, (2) pp. 455-466. ISSN 0021-8901 (2015) [Refereed Article]

DOI: 10.1111/1365-2664.12378 [eCite] [Details]

Citations: Scopus - 3Web of Science - 3

Co-authors: Brook BW

Tweet

2015Rodriguez-Rey M, Herrando-Perez S, Gillespie R, Jacobs Z, Saltre F, et al., 'Criteria for assessing the quality of Middle Pleistocene to Holocene vertebrate fossil ages', Quaternary Geochronology, 30 pp. 69-79. ISSN 1871-1014 (2015) [Refereed Article]

DOI: 10.1016/j.quageo.2015.08.002 [eCite] [Details]

Citations: Scopus - 5

Co-authors: Brook BW; Beeton N

Tweet

2015Saltre F, Brook BW, Rodriguez-Rey M, Cooper A, Johnson CN, et al., 'Uncertainties in dating constrain model choice for inferring extinction time from fossil records', Quaternary Science Reviews, 112 pp. 128-137. ISSN 0277-3791 (2015) [Refereed Article]

DOI: 10.1016/j.quascirev.2015.01.022 [eCite] [Details]

Citations: Scopus - 3

Co-authors: Brook BW

Tweet

2015Ziembicki MR, Woinarski JCZ, Webb JK, Vanderduys E, Tuft K, et al., 'Stemming the tide: progress towards resolving the causes of decline and implementing management responses for the disappearing mammal fauna of northern Australia', Therya, 6, (1) pp. 169-225. ISSN 2007-3364 (2015) [Non Refereed Article]

DOI: 10.12933/therya-15-236 [eCite] [Details]

Co-authors: Frank ASK

Tweet

2015Beeton NJ, McMahon CR, Williamson GJ, Potts J, Bloomer J, et al., 'Using the Spatial Population Abundance Dynamics Engine for conservation management', Methods in Ecology and Evolution, 6, (12) pp. 1407-1416. ISSN 2041-210X (2015) [Refereed Article]

DOI: 10.1111/2041-210X.12434 [eCite] [Details]

Citations: Scopus - 1

Co-authors: Beeton NJ; McMahon CR; Williamson GJ; Forbes LK

Tweet

2015Hohnen R, Tuft KD, Legge S, Radford IJ, Carver S, et al., 'Post-fire habitat use of the golden-backed tree-rat (Mesembriomys macrurus) in the northwest Kimberley, Western Australia', Austral Ecology, 40, (8) pp. 941-952. ISSN 1442-9985 (2015) [Refereed Article]

DOI: 10.1111/aec.12278 [eCite] [Details]

Co-authors: Hohnen R; Carver S

Tweet

2014Eldridge MDB, Potter S, Johnson CN, Ritchie EG, 'Differing impact of a major biogeographic barrier on genetic structure in two large kangaroos from the monsoon tropics of Northern Australia', Ecology and Evolution, 4, (5) pp. 554-567. ISSN 2045-7758 (2014) [Refereed Article]

DOI: 10.1002/ece3.954 [eCite] [Details]

Citations: Scopus - 5Web of Science - 5

Tweet

2014Fancourt BA, Nicol SC, Hawkins CE, Jones ME, Johnson CN, 'Beyond the disease: is Toxoplasma gondii infection causing population declines in the eastern quoll (Dasyurus viverrinus)?', International Journal for Parasitology, 3, (2) pp. 102-112. ISSN 2213-2244 (2014) [Refereed Article]

DOI: 10.1016/j.ijppaw.2014.05.001 [eCite] [Details]

Citations: Scopus - 6

Co-authors: Fancourt BA; Nicol SC; Hawkins CE; Jones ME

Tweet

2014Fisher DO, Johnson CN, Lawes MJ, Fritz SA, McCallum H, et al., 'Response to commentary by Woinarski (Critical-weight-range marsupials in northern Australia are declining: a commentary on Fisher et al. (2014) The current decline of tropical marsupials in Australia: is history repeating?')', Global Ecology and Biogeography, 24, (1) pp. 123-125. ISSN 1466-822X (2014) [Letter or Note in Journal]

DOI: 10.1111/geb.12252 [eCite] [Details]

Citations: Scopus - 1

Co-authors: Frank A

Tweet

2014Fisher DO, Johnson CN, Lawes MJ, Fritz SA, McCallum HI, et al., 'The current decline of tropical marsupials in Australia: is history repeating?', Global Ecology and Biogeography, 23, (2) pp. 181-190. ISSN 1466-822X (2014) [Refereed Article]

DOI: 10.1111/geb.12088 [eCite] [Details]

Citations: Scopus - 30Web of Science - 29

Co-authors: McCallum HI; Frank A

Tweet

2014Frank ASK, Johnson CN, Potts JM, Fisher A, Lawes MJ, et al., 'Experimental evidence that feral cats cause local extirpation of small mammals in Australia's tropical savannas', Journal of Applied Ecology, 51, (6) pp. 1486-1493. ISSN 0021-8901 (2014) [Refereed Article]

DOI: 10.1111/1365-2664.12323 [eCite] [Details]

Citations: Scopus - 17Web of Science - 15

Co-authors: Frank ASK

Tweet

2014DeGabriel JL, Moore BD, Foley WJ, Johnson CN, 'Male-biased predation and its effect on paternity skew and life history in a population of common brushtail possums (Trichosurus vulpecula)', PLoS One, 9, (11) Article e111746. ISSN 1932-6203 (2014) [Refereed Article]

DOI: 10.1371/journal.pone.0111746 [eCite] [Details]

Tweet

2014McGregor HW, Legge S, Jones ME, Johnson CN, 'Landscape management of fire and grazing regimes alters the fine-scale habitat utilisation by feral cats', PLoS One, 9, (10) Article e109097. ISSN 1932-6203 (2014) [Refereed Article]

DOI: 10.1371/journal.pone.0109097 [eCite] [Details]

Citations: Scopus - 33Web of Science - 29

Co-authors: McGregor HW; Jones ME

Tweet

2014Potts JM, Beeton NJ, Bowman DMJS, Williamson GJ, Lefroy EC, et al., 'Predicting the future range and abundance of fallow deer in Tasmania, Australia', Wildlife Research, 41, (8) pp. 633-640. ISSN 1035-3712 (2014) [Refereed Article]

DOI: 10.1071/WR13206 [eCite] [Details]

Citations: Scopus - 2

Co-authors: Beeton NJ; Bowman DMJS; Williamson GJ; Lefroy EC

Tweet

2014Prowse TAA, Johnson CN, Bradshaw CJA, Brook BW, 'An ecological regime shift resulting from disrupted predator-prey interactions in Holocene Australia', Ecology, 95, (3) pp. 693-702. ISSN 0012-9658 (2014) [Refereed Article]

DOI: 10.1890/13-0746.1 [eCite] [Details]

Citations: Scopus - 10Web of Science - 13

Co-authors: Brook BW

Tweet

2014van Bommel L, Johnson CN, 'Where do livestock guardian dogs go? Movement patterns of free-ranging Maremma sheepdogs', PLoS One, 9, (10) Article e111444. ISSN 1932-6203 (2014) [Refereed Article]

DOI: 10.1371/journal.pone.0111444 [eCite] [Details]

Co-authors: van Bommel L

Tweet

2014van Bommel L, Johnson CN, 'How guardian dogs protect livestock from predators: territorial enforcement by Maremma sheepdogs', Wildlife Research, 41, (8) pp. 662-672. ISSN 1035-3712 (2014) [Refereed Article]

DOI: 10.1071/WR14190 [eCite] [Details]

Co-authors: van Bommel L

Tweet

2014Johnson CN, Crowther MS, Dickman CR, Letnic MI, Newsome TM, et al., 'Experiments in no-impact control of dingoes: comment on Allen et al. 2013', Frontiers in Zoology, 11 Article 17. ISSN 1742-9994 (2014) [Contribution to Refereed Journal]

DOI: 10.1186/1742-9994-11-17 [eCite] [Details]

Citations: Scopus - 6

Tweet

2013Bradshaw CJA, Bowman DMJS, Bond NR, Murphy BP, Moore AD, et al., 'Brave new green world - Consequences of a carbon economy for the conservation of Australian biodiversity', Biological Conservation, 161 pp. 71-90. ISSN 0006-3207 (2013) [Refereed Article]

DOI: 10.1016/j.biocon.2013.02.012 [eCite] [Details]

Citations: Scopus - 29

Co-authors: Bowman DMJS; Murphy BP; Lefroy EC

Tweet

2013DeGabriel JL, Moore BD, Felton AM, Ganzhorn JU, Stolter C, et al., 'Translating nutritional ecology from the laboratory to the field: milestones in linking plant chemistry to population regulation in mammalian browsers', Oikos, 123, (3) pp. 298-308. ISSN 1600-0706 (2013) [Refereed Article]

DOI: 10.1111/j.1600-0706.2013.00727.x [eCite] [Details]

Citations: Scopus - 15Web of Science - 11

Tweet

2013Inkster-Draper TE, Sheaves M, Johnson CN, Robson SKA, 'Prescribed fire in eucalypt woodlands: immediate effects on a microbat community of northern Australia', Wildlife Research, 40, (1) pp. 70-76. ISSN 1448-5494 (2013) [Refereed Article]

DOI: 10.1071/WR12133 [eCite] [Details]

Tweet

2013Johnson CN, Bradshaw CJA, Cooper A, Gillespie R, Brook BW, 'Rapid megafaunal extinction following human arrival throughout the New World', Quaternary International, 308-309 pp. 273-277. ISSN 1040-6182 (2013) [Refereed Article]

DOI: 10.1016/j.quaint.2013.06.022 [eCite] [Details]

Citations: Scopus - 7

Tweet

2013Johnson CN, Ritchie EG, 'The dingo and biodiversity conservation: response to Fleming et al. (2012)', Australian Mammalogy, 35, (1) pp. 8-14. ISSN 0310-0049 (2013) [Refereed Article]

DOI: 10.1071/AM12005 [eCite] [Details]

Citations: Scopus - 9Web of Science - 9

Tweet

2013Brook BW, Bradshaw CJA, Cooper A, Johnson CN, Worthy TH, et al., 'Lack of chronological support for stepwise prehuman extinctions of Australian megafauna', Proceedings of the National Academy of Sciences of The United States of America, 110, (36) pp. 1. ISSN 0027-8424 (2013) [Letter or Note in Journal]

DOI: 10.1073/pnas.1309226110 [eCite] [Details]

Citations: Scopus - 9

Tweet

2013Pope LC, Vernes K, Goldizen AW, Johnson CN, 'Mating system and local dispersal patterns of an endangered potoroid, the northern bettong (Bettongia tropica)', Australian Journal of Zoology, 60, (4) pp. 278-287. ISSN 0004-959X (2013) [Refereed Article]

DOI: 10.1071/ZO12071 [eCite] [Details]

Citations: Scopus - 1Web of Science - 1

Tweet

2013Prowse TAA, Johnson CN, Lacy RC, Bradshaw CJA, Pollak JP, et al., 'No need for disease: Testing extinction hypotheses for the thylacine using multi-species metamodels', Journal of Animal Ecology, 82, (2) pp. 355-364. ISSN 0021-8790 (2013) [Refereed Article]

DOI: 10.1111/1365-2656.12029 [eCite] [Details]

Citations: Scopus - 17Web of Science - 15

Tweet

2013Ritchie EG, Bradshaw CJA, Dickman CR, Hobbs R, Johnson CN, et al., 'Continental-scale governance and the hastening of loss of Australia's biodiversity', Conservation Biology, 27, (6) pp. 1133-1135. ISSN 0888-8892 (2013) [Letter or Note in Journal]

DOI: 10.1111/cobi.12189 [eCite] [Details]

Citations: Scopus - 15

Tweet

2013Windley HR, Wallis IR, DeGabriel JL, Moore BD, Johnson CN, et al., 'A faecal index of diet quality that predicts reproductive success in a marsupial folivore', Oecologia, 173, (1) pp. 203-212. ISSN 0029-8549 (2013) [Refereed Article]

DOI: 10.1007/s00442-013-2616-9 [eCite] [Details]

Citations: Scopus - 10Web of Science - 10

Tweet

2013Kolomyjec SH, Grant TR, Johnson CN, Blair D, 'Regional population structuring and conservation units in the platypus (Ornithorhynchus anatinus)', Australian Journal of Zoology, 61, (5) pp. 378-385. ISSN 0004-959X (2013) [Refereed Article]

DOI: 10.1071/ZO13029 [eCite] [Details]

Citations: Scopus - 3Web of Science - 3

Tweet

2012Bateman BL, VanDerWal J, Johnson CN, 'Nice weather for bettongs: using weather events, not climate means, in species distribution models', Ecography, 35, (4) pp. 306-314. ISSN 0906-7590 (2012) [Refereed Article]

DOI: 10.1111/j.1600-0587.2011.06871.x [eCite] [Details]

Citations: Scopus - 23Web of Science - 19

Tweet

2012Bateman BL, VanDerWal J, Williams SE, Johnson CN, 'Biotic interactions influence the projected distribution of a specialist mammal under climate change', Diversity and Distributions, 18, (9) pp. 861-872. ISSN 1366-9516 (2012) [Refereed Article]

DOI: 10.1111/j.1472-4642.2012.00922.x [eCite] [Details]

Citations: Scopus - 17Web of Science - 18

Tweet

2012Brook LA, Johnson CN, Ritchie EG, 'Effects of predator control on behaviour of an apex predator and indirect consequences for mesopredator suppression', Journal of Applied Ecology, 49, (6) pp. 1278-1286. ISSN 0021-8901 (2012) [Refereed Article]

DOI: 10.1111/j.1365-2664.2012.02207.x [eCite] [Details]

Citations: Scopus - 53Web of Science - 53

Tweet

2012Rule S, Brook BW, Haberle SG, Turney CSM, Kershaw AP, et al., 'The aftermath of megafaunal extinction: ecosystem transformation in Pleistocene Australia', Science, 335, (6075) pp. 1483-1486. ISSN 0036-8075 (2012) [Refereed Article]

DOI: 10.1126/science.1214261 [eCite] [Details]

Citations: Scopus - 105Web of Science - 99

Tweet

2012Valentine LE, Schwarzkopf L, Johnson CN, 'Effects of a short fire-return interval on resources and assemblage structure of birds in a tropical savanna', Austral Ecology, 37, (1) pp. 23-34. ISSN 1442-9985 (2012) [Refereed Article]

DOI: 10.1111/j.1442-9993.2011.02244.x [eCite] [Details]

Citations: Scopus - 13Web of Science - 12

Tweet

2012Zamora-Vilchis I, Williams SE, Johnson CN, 'Environmental Temperature Affects Prevalence of Blood Parasites of Birds on an Elevation Gradient: Implications for Disease in a Warming Climate', PLoS-One, 7, (6) Article e39208. ISSN 1932-6203 (2012) [Refereed Article]

DOI: 10.1371/journal.pone.0039208 [eCite] [Details]

Citations: Scopus - 37Web of Science - 32

Tweet

2012van Bommel L, Johnson CN, 'Good dog! Using livestock guardian dogs to protect livestock from predators in Australia's extensive grazing systems', Wildlife Research, 39, (3) pp. 220-229. ISSN 1035-3712 (2012) [Refereed Article]

DOI: 10.1071/WR11135 [eCite] [Details]

Citations: Scopus - 20Web of Science - 20

Co-authors: van Bommel L

Tweet

2011Bateman BL, Abell-Davis SE, Johnson CN, 'Climate-driven variation in food availability between the core and range edge of the endangered northern bettong (Bettongia tropica)', Australian Journal of Zoology, 59, (3) pp. 177-185. ISSN 0004-959X (2011) [Refereed Article]

DOI: 10.1071/ZO11079 [eCite] [Details]

Citations: Scopus - 4Web of Science - 1

Tweet

2011Johnson CN, Brook BW, 'Reconstructing the dynamics of ancient human populations from radiocarbon dates: 10 000 years of population growth in Australia', Royal Society of London. Proceedings. Biological Sciences, 278, (1725) pp. 3748-3754. ISSN 0962-8452 (2011) [Refereed Article]

DOI: 10.1098/rspb.2011.0343 [eCite] [Details]

Citations: Scopus - 26Web of Science - 27

Tweet

2011Woinarski JCZ, Legge S, Fitzsimons JA, Traill BJ, Burbidge AA, et al., 'The disappearing mammal fauna of northern Australia: context, cause, and response ', Conservation Letters, 4, (3) pp. 192-201. ISSN 1755-263X (2011) [Refereed Article]

DOI: 10.1111/j.1755-263X.2011.00164.x [eCite] [Details]

Citations: Scopus - 101Web of Science - 90

Tweet

2011Bateman BL, Johnson CN, 'The influences of climate, habitat and fire on the distribution of cockatoo grass (Alloteropsis semialata) (Poaceae) in the Wet Tropics of northern Australia', Australian Journal of Botany, 59, (4) pp. 315-323. ISSN 0067-1924 (2011) [Refereed Article]

DOI: 10.1071/BT10266 [eCite] [Details]

Citations: Scopus - 1Web of Science - 1

Tweet

2010Asari Y, Johnson CN, Parsons M, Larson J, 'Gap-crossing in fragmented habitats by mahogany gliders (Petaurus gracilis). Do they cross roads and powerline corridors?', Australian Mammalogy, 32, (1) pp. 10-15. ISSN 0310-0049 (2010) [Refereed Article]

DOI: 10.1071/AM08017 [eCite] [Details]

Citations: Scopus - 12

Tweet

2010Johnson CN, 'Red in tooth and claw: how top predators shape terrestrial ecosystems ', Journal of Animal Ecology, 79 pp. 723-725. ISSN 0021-8790 (2010) [Refereed Article]

DOI: 10.1111/j.1365-2656.2010.01706.x [eCite] [Details]

Citations: Scopus - 4

Tweet

2010Wallach AD, Johnson CN, Ritchie EG, O'Neill AJ, 'Predator control promotes invasive dominated ecological states ', Ecology Letters, 13, (8) pp. 1008-1018. ISSN 1461-023X (2010) [Refereed Article]

DOI: 10.1111/j.1461-0248.2010.01492.x [eCite] [Details]

Citations: Scopus - 53Web of Science - 50

Tweet

2009Bennett JM, Kutt AS, Johnson CN, Robson SKA, 'Ants as indicators for vertebrate fauna at a local scale: an assessment of cross-taxa surrogacy in a disturbed matrix', Biodiversity and Conservation, 18, (13) pp. 3407-3419. ISSN 0960-3115 (2009) [Refereed Article]

DOI: 10.1007/s10531-009-9650-2 [eCite] [Details]

Citations: Scopus - 7Web of Science - 6

Tweet

2009DeGabriel JL, Moore BD, Foley WJ, Johnson CN, 'The effects of plant defensive chemistry on nutrient availability predict reproductive success in a mammal ', Ecology, 90, (3) pp. 711-719. ISSN 0012-9658 (2009) [Refereed Article]

DOI: 10.1890/08-0940.1 [eCite] [Details]

Citations: Scopus - 76Web of Science - 75

Tweet

2009DeGabriel JL, Moore BD, Shipley LA, Krockenberger AK, Wallis IR, et al., 'Inter-population differences in the tolerance of a marsupial folivore to plant secondary metabolites', Oecologia, 161, (3) pp. 539-548. ISSN 0029-8549 (2009) [Refereed Article]

DOI: 10.1007/s00442-009-1407-9 [eCite] [Details]

Citations: Scopus - 9Web of Science - 8

Tweet

2009Isaac JL, Vanderwal J, Johnson CN, Williams SE, 'Resistence and resilience: quantifying relative extinction risk in a diverse assemblage of Australian tropical rainforest vertebrates', Diversity and Distributions, 15, (2) pp. 280-288. ISSN 1366-9516 (2009) [Refereed Article]

DOI: 10.1111/j.1472-4642.2008.00531.x [eCite] [Details]

Citations: Scopus - 31Web of Science - 28

Tweet

2009Johnson CN, 'Megafaunal decline and fall', Science, 326 pp. 1072-1073. ISSN 0036-8075 (2009) [Non Refereed Article]

DOI: 10.1126/science.1182770 [eCite] [Details]

Citations: Scopus - 9

Tweet

2009Johnson CN, 'Ecological consequences of Late Quaternary extinctions of megafauna', Royal Society of London. Proceedings. Biological Sciences, 276, (1667) pp. 2509-2519. ISSN 0962-8452 (2009) [Refereed Article]

DOI: 10.1098/rspb.2008.1921 [eCite] [Details]

Citations: Scopus - 96Web of Science - 93

Tweet

2009Johnson CN, Isaac JL, 'Body mass and extinction risk in Australian marsupials: The 'Critical Weight Range' revisited ', Austral Ecology, 34, (1) pp. 35-40. ISSN 1442-9985 (2009) [Refereed Article]

DOI: 10.1111/j.1442-9993.2008.01878.x [eCite] [Details]

Citations: Scopus - 49Web of Science - 44

Tweet

2009Johnson CN, VanDerWal J, 'Evidence that dingoes limit abundance of a mesopredator in eastern Australian forests ', Journal of Applied Ecology, 46, (3) pp. 641-646. ISSN 0021-8901 (2009) [Refereed Article]

DOI: 10.1111/j.1365-2664.2009.01650.x [eCite] [Details]

Citations: Scopus - 70Web of Science - 62

Tweet

2009Kolomyjec SH, Chong JYT, Blair D, Gongora J, Grant TR, et al., 'Population genetics of the platypus (Ornithorhynchus anatinus): a fine-scale look at adjacent river systems ', Australian Journal of Zoology, 57, (4) pp. 225-234. ISSN 0004-959X (2009) [Refereed Article]

DOI: 10.1071/ZO09045 [eCite] [Details]

Citations: Scopus - 10Web of Science - 9

Co-authors: Kolomyjec SH

Tweet

2009Ritchie EG, Johnson CN, 'Predator interactions, mesopredator release and biodiversity conservation', Ecology Letters, 12, (9) pp. 982-998. ISSN 1461-023X (2009) [Refereed Article]

DOI: 10.1111/j.1461-0248.2009.01347.x [eCite] [Details]

Citations: Scopus - 293Web of Science - 272

Tweet

2009Ritchie EG, Martin JK, Johnson CN, Fox BJ, 'Separating the influences of environment and species interactions on patterns of distribution and abundance: competition between large herbivores ', Journal of Animal Ecology, 78, (4) pp. 724-731. ISSN 0021-8790 (2009) [Refereed Article]

DOI: 10.1111/j.1365-2656.2008.01520.x [eCite] [Details]

Citations: Scopus - 33Web of Science - 35

Tweet

2009VanDerWal J, Shoo LP, Johnson CN, Williams SE, 'Abundance and the Environmental Niche: Environmental Suitability Estimated from Niche Models Predicts the Upper Limit of Local Abundance ', The American Naturalist, 174, (2) pp. 1-10. ISSN 0003-0147 (2009) [Refereed Article]

DOI: 10.1086/600087 [eCite] [Details]

Citations: Scopus - 134Web of Science - 128

Tweet

2009Visser RL, Watson JEM, Dickman CR, Southgate R, Jenkins D, et al., 'A national framework for research on trophic regulation by the Dingo in Australia', Pacific Conservation Biology, 15, (3) pp. 209-216. ISSN 1038-2097 (2009) [Refereed Article]

[eCite] [Details]

Citations: Scopus - 7

2009Williams SE, Williams YM, VanDerWal J, Isaac JL, Shoo LP, et al., 'Ecological specialization and population size in a biodiversity hotspot: How rare species avoid extinction', National Academy of Sciences of The United States of America. Proceedings, 106, (Supplement 2) pp. 19737-19741. ISSN 0027-8424 (2009) [Refereed Article]

DOI: 10.1073/pnas.0901640106 [eCite] [Details]

Citations: Scopus - 34Web of Science - 30

Tweet

2008Ritchie EG, Martin JK, Krockenberger AK, Garnett S, Johnson CN, 'Large-herbivore distribution and abundance: intra-and interspecific niche variation in the tropics', Ecological Monographs, 78, (1) pp. 105-122. ISSN 0012-9615 (2008) [Refereed Article]

DOI: 10.1890/06-2117.1 [eCite] [Details]

Citations: Scopus - 14Web of Science - 15

Tweet

2008Symonds MRE, Johnson CN, 'Species richness and evenness in Australian birds', The American Naturalist , 171, (4) pp. 480-490. ISSN 0003-0147 (2008) [Refereed Article]

DOI: 10.1086/528960 [eCite] [Details]

Citations: Scopus - 18Web of Science - 17

Tweet

2008Shevill DI, Johnson CN, 'Diet and breeding of the rufous spiny bandicoot echymipera rufescens australis, Iron Range, Cape York Peninsula', Australian Mammalogy, 29, (2) pp. 169-175. ISSN 0310-0049 (2008) [Refereed Article]

DOI: 10.1071/AM07021 [eCite] [Details]

Citations: Scopus - 1

Tweet

2007Ford F, Johnson CN, 'Eroding abodes and vanished bridges: historical biogeography of the substrate specialist pebble-mound mice (pseudomys)', Journal of Biogeography, 34, (3) pp. 514-523. ISSN 0305-0270 (2007) [Refereed Article]

DOI: 10.1111/j.1365-2699.2006.01649.x [eCite] [Details]

Citations: Scopus - 6Web of Science - 6

Tweet

2007Johnson CN, Isaac JL, Fisher DO, 'Rarity of a top predator triggers continent-wide collapse of mammal prey: Dingoes and marsupials in Australia ', Proceedings of The Royal Society : Biological Sciences, 274, (1608) pp. 341-346. ISSN 0962-8452 (2007) [Refereed Article]

DOI: 10.1098/rspb.2006.3711 [eCite] [Details]

Citations: Scopus - 167Web of Science - 153

Tweet

2007Parsons JG, Cairns A, Johnson CN, Robson SKA, Shilton LA, et al., 'Dietary variation in spectacled flying foxes (Pteropus conspicillatus) of the Australian Wet Tropics ', Australian Journal of Zoology, 54, (6) pp. 417-428. ISSN 0004-959X (2007) [Refereed Article]

DOI: 10.1071/ZO06092 [eCite] [Details]

Citations: Scopus - 13Web of Science - 14

Tweet

2007Parsons JG, Cairns A, Johnson CN, Robson SKA, Shilton LA, et al., 'Bryophyte dispersal by flying foxes: A novel discovery', Oecologia, 152, (1) pp. 112-114. ISSN 0029-8549 (2007) [Refereed Article]

DOI: 10.1007/s00442-006-0639-1 [eCite] [Details]

Citations: Scopus - 18Web of Science - 14

Tweet

2007Valentine LE, Schwarzkopf L, Johnson CN, Grice AC, 'Burning season influences the response of bird assemblages to fire in tropical savannas', Biological Conservation, 137, (1) pp. 90-101. ISSN 0006-3207 (2007) [Refereed Article]

DOI: 10.1016/j.biocon.2007.01.018 [eCite] [Details]

Citations: Scopus - 22Web of Science - 19

Tweet

2006Brook BW, Johnson CN, 'Selective hunting of juveniles as a cause of the imperceptible overkill of the Australian Pleistocene megafauna', Alcheringa, 30, (Supplement 1) pp. 39-48. ISSN 0311-5518 (2006) [Refereed Article]

DOI: 10.1080/03115510609506854 [eCite] [Details]

Citations: Scopus - 20

Tweet

2006Hourigan CL, Johnson CN, Robson SKA, 'The structure of a micro-bat community in relation to gradients of environmental variation in a tropical urban area', Urban Ecosystems, 9, (2) pp. 67-82. ISSN 1083-8155 (2006) [Refereed Article]

DOI: 10.1007/s11252-006-7902-4 [eCite] [Details]

Citations: Scopus - 28

Tweet

2006Symonds MRE, Christidis L, Johnson CN, 'Latitudinal gradients in abundance, and the causes of rarity in the tropics: a test using Australian honeyeaters (Aves: Meliphagidae)', Oecologia, 149, (3) pp. 406-417. ISSN 0029-8549 (2006) [Refereed Article]

DOI: 10.1007/s00442-006-0456-6 [eCite] [Details]

Citations: Scopus - 11Web of Science - 10

Tweet

2006Symonds MRE, Johnson CN, 'Determinants of local abundance in a major radiation of Australian passerines (Aves: Meliphagoidea)', Journal of Biogeography, 33, (5) pp. 794-802. ISSN 0305-0270 (2006) [Refereed Article]

DOI: 10.1111/j.1365-2699.2005.01432.x [eCite] [Details]

Citations: Scopus - 13Web of Science - 13

Tweet

2006Symonds MRE, Johnson CN, 'Range size-abundance relationships in Australian passerines', Global Ecology and Biogeography, 15, (2) pp. 143-152. ISSN 1466-822X (2006) [Refereed Article]

DOI: 10.1111/j.1466-822X.2005.00198.x [eCite] [Details]

Citations: Scopus - 16Web of Science - 14

Tweet

2006Williams YM, Williams SE, Alford RA, Waycott M, Johnson CN, 'Niche breadth and geographical range: Ecological compensation for geographical rarity in rainforest frogs', Biology Letters, 2, (4) pp. 532-535. ISSN 1744-9561 (2006) [Refereed Article]

DOI: 10.1098/rsbl.2006.0541 [eCite] [Details]

Citations: Scopus - 26Web of Science - 25

Tweet

1998Johnson CN, 'Species extinction and the relationship between distribution and abundance', Nature: International Weekly Journal of Science, 394, (16 July 1998) pp. 272-274. ISSN 0028-0836 (1998) [Refereed Article]

DOI: 10.1038/28385 [eCite] [Details]

Citations: Scopus - 123Web of Science - 117

Tweet

1996Johnson CN, 'Interactions between mammals and ectomycorrhiza fungi', Trends in Ecology & Evolution, 11, (12) pp. 503-507. ISSN 0169-5347 (1996) [Refereed Article]

DOI: 10.1016/S0169-5347(96)10053-7 [eCite] [Details]

Citations: Scopus - 106Web of Science - 97

Tweet

1988Johnson CN, 'Dispersal and the sex ratio at birth in primates', Nature, 332 pp. 726-728. ISSN 0028-0836 (1988) [Refereed Article]

DOI: 10.1038/332726a0 [eCite] [Details]

Tweet

Book

(1 outputs)
YearCitationAltmetrics
2006Johnson CN, 'Australia's Mammal Extinctions : A 50,000 year history', Cambridge University Press, Port Melbourne, pp. 288. ISBN 0521686601 (2006) [Authored Research Book]

[eCite] [Details]

Chapter in Book

(4 outputs)
YearCitationAltmetrics
2015Johnson C, 'An ecological view of the dingo', The Dingo Debate: Origins, Behaviour and Conservation, CSIRO Publishing, B Smith (ed), Australia, pp. 191-213. ISBN 9781486300297 (2015) [Research Book Chapter]

[eCite] [Details]

2014Johnson CN, 'The rise and fall of large marsupial carnivores', Carnivores of Australia: Past, Present and Future, CSIRO Publishing, AS Glen, CR Dickman (ed), Collingwood, Australia, pp. 13-26. ISBN 9780643103108 (2014) [Research Book Chapter]

[eCite] [Details]

2014Johnson CN, Letnic M, 'Introducing a new top predator, the dingo', Invasion Biology and Ecological Theory: Insights from a Continent in Transformation, Cambridge University Press, HHT Prins, IJ Gordon (ed), Cambridge, United Kingdom, pp. 414-428. ISBN 978-1-1-07-03581-2 (2014) [Research Book Chapter]

[eCite] [Details]

2014van Bommel L, Johnson CN, 'Protecting livestock while conserving ecosystem function: non-lethal management of wild predators', Carnivores of Australia: Past, Present and Future, CSIRO Publishing, AS Glen, CR Dickman (ed), Collingwood, Australia, pp. 323-354. ISBN 9780643103108 (2014) [Research Book Chapter]

[eCite] [Details]

Co-authors: van Bommel L

Conference Publication

(1 outputs)
YearCitationAltmetrics
2007Frusher SD, Gardner C, Ling SD, Johnson CN, Ridgeway K, 'Is climate change impacting on lobster stocks in Tasmania?', Programme & Abstracts: 8th International Conference and Workshop on Lobster Biology and Management, 23-28 September 2007, Charlottetown, Canada, pp. 43. (2007) [Conference Extract]

[eCite] [Details]

Co-authors: Frusher SD; Gardner C; Ling SD

Other Public Output

(2 outputs)
YearCitationAltmetrics
2013Johnson C, 'What happened to the megafauna?', Wildlife Australia, Preservation Society of QLD, Queensland, Australia, 50, 3 (2013) [Magazine Article]

[eCite] [Details]

2013Johnson C, 'Ecologica - new eye on life: Dingoes for wildlife', Wildlife Australia, Wildlife Preservation Society of Queensland, Australia, 50, 2 (2013) [Magazine Article]

[eCite] [Details]

Grants & Funding

Professor Johnson has held nine ARC Discovery and four ARC Linkage grants, and collaborated in two CRCs, one National Environment Research Program Hub, and one National Environment Science Program Hub.

Funding Summary

Number of grants

32

Total funding

$41,426,090

Projects

Transformation of vegetation by big herbivores, from the Pleistocene to now (2016 - 2018)$387,527
Description
The structure and distribution of vegetation types is determined not only by climate and soils, but also by theimpacts of herbivory and fire as consumers of plant biomass. Recent research has shown how fire shapes thelarge-scale distribution of vegetation types, but we do not have an equivalent understanding of the effects of largeground-dwelling herbivores. We will test the effects of such animals on vegetation structure in the Pleistocene,when mega-herbivores were common, and today, and we will compare the impacts of fire and herbivory on thedistribution of vegetation types. The project will provide a coherent understanding of the effects of extinct andextant large herbivores on ecosystems over large scales of space and time.
Funding
Australian Research Council ($379,400)
Scheme
Grant-Discovery Projects
Administered By
University of Tasmania
Research Team
Johnson CN; Bowman DMJS; Brook BW; Haberle SG; Higgins S
Period
2016 - 2018
Grant Reference
DP160100748
Long-term ecological effects of Tasmanian devil decline (2016)$7,500
Description
This project investigates how the disease-induced decline of the Tasmanian devil affects prey behaviour and the composition of the mammal community.
Funding
Holsworth Wildlife Research Endowment ($7,500)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Jones ME; Johnson CN
Year
2016
Interactions among predators and impacts on prey on Maria Island: Devils, cats, possums and seabirds (2016)$7,000
Description
This project will use remote cameras, GPS tracking technology, and monitoring of seabird numbers and survival to study the effects of an increasing devil population on the population dynamics, behaviour, activity and resource-use of brushtail possums, feral cats, shearwaters and other small-medium sized mammal species. The aim of the project is to enhance knowledge of the role of Tasmanian Devils as ecosystem architects in protecting biodiversity and guiding conservation mitigation and restoration programs in Tasmania and mainland Australia.
Funding
Holsworth Wildlife Research Endowment ($7,000)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Jones ME; Johnson CN
Year
2016
Using a novel approach to assess microhabitat use under predation risk of declining ground-foraging birds in fragmented farmland (2016)$2,087
Description
This is a field study to assess the influence of predation risk on microhabitat selection of ground-foraging woodland birds in the Tasmanian Midlands.
Funding
British Ornithologist’s Union ($2,087)
Scheme
Grant-Small Ornithological Research Grant
Administered By
University of Tasmania
Research Team
Jones ME; Johnson CN
Year
2016
Arthur River long-term eco-system monitoring project (2015)$16,000
Funding
University of Tasmania Foundation Inc ($16,000)
Scheme
Donation - Individual
Administered By
University of Tasmania
Research Team
Jones ME; Johnson CN
Year
2015
Landscape and conservation genetics of Tasmanian bettongs (2015 - 2016)$10,800
Funding
Holsworth Wildlife Research Endowment ($10,800)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Burridge CP; Jones ME; Johnson CN
Period
2015 - 2016
Using guardian dogs to protect threatened species (2015 - 2018)$390,000
Description
Guardian dogs are ancient breeds of dogs that live with livestock and protect them from wild predators. Thisproject asks whether they can also be used to reduce predation on threatened wildlife. The project will measurethe impacts of guardian dogs on distribution and behaviour of feral cats and red foxes, and monitor trialreintroductions of eastern barred bandicoots in the presence of guardian dogs. It aims to provide an innovativesolution to one of Australia's most significant conservation problems: the persistent failure of attempts toreintroduce threatened species to open landscapes with invasive predators.
Funding
Australian Research Council ($300,000)
Scheme
Grant-Linkage Projects Round 1
Administered By
University of Tasmania
Research Team
Johnson CN; Coulson G; Magrath M
Period
2015 - 2018
Grant Reference
LP150100220
Restoring resilience in wildlife populations: devils, quolls and feral cats in the Tasmanian Midlands. (2015)$1,500
Description
Aims1. Determine the nature and relative importance of factors driving the distribution and abundanceof large mammalian predators in the Tasmanian Midlands.2. Investigate the fine-scale habitat use of each species, with a view to defining important habitatfeatures and parameters for the conservation of native predators.3. Examine the behavioural interactions between the four species of large mammalian predatorspresent, in order to further understand how these may be affecting these species habitat useand distribution.4. Quantify the relative impact of these four predators on native prey, and provide an indication ofwhether this impact can be limited by habitat complexity.5. Provide preliminary information on the impact of current predator control and managementpractices.
Funding
Royal Zoological Society of New South Wales ($1,500)
Scheme
Grant-Ethel Mary Read
Administered By
University of Tasmania
Research Team
Jones ME; Johnson CN
Year
2015
Ecological restoration for Critical Weight Range Mammals in Tasmania's Midlands (2015)$6,500
Description
The main aim of this project is to provide an animal centric approach for restoration efforts and conservationmanagement for Tasmania's CWR mammals, by studying individual decision making across the landscape.
Funding
Holsworth Wildlife Research Endowment ($6,500)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Johnson CN; Jones ME
Year
2015
Restoring resilience in wildlife populations: devils, quolls and cats in the Tasmanian Midlands (2015)$7,500
Description
Determining the processes driving the distribution, abundance and behaviour of mammalian carnivores in the Tasmanian Midlands,with a view to improving the effectiveness of habitat restoration projects being undertaken by our industry partners.
Funding
Holsworth Wildlife Research Endowment ($7,500)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Jones ME; Johnson CN
Year
2015
Threatened Species Recovery Hub (2015 - 2021)$29,980,000
Funding
Department of Environment (Cwth) ($29,980,000)
Scheme
Grant-National Environmental Science Prgm (NESP)
Administered By
University of Queensland
Research Team
Possingham H; Johnson CN
Period
2015 - 2021
Does digging by marsupials reduces fire impact and promotes recovery from fire in Australia's woodlands? (2014 - 2016)$56,100
Description
Many medium-sized Australian marsupials dig for their food. In the process they turn over huge volumes of soil, create vast numbers of foraging pits, and disrupt the litter layer in woodland ecosystems. This project will explore the effects of this activity on the ecological impacts of fire in Australia's flammable southern woodlands. Our hypothesis is that diggings increase the patchiness of fire at fine spatial scales, protect some organic matter and seeds that would otherwise be consumed by fire, and promote rapid regeneration of diverse plant species following fire.
Funding
The Hermon Slade Foundation ($56,100)
Scheme
Grant-Research Project
Administered By
University of Tasmania
Research Team
Johnson CN
Period
2014 - 2016
Restoring resilience in wildlife populations (2013 - 2016)$624,261
Description
Restoration and revegetation is now firmly on the agenda for Australias management of its biodiversity, including some of its most vulnerable ecological systems. This project will create the first ever landscape models for eco-restoration based on how individual animals perceive habitat quality and predation risk. These ecological processes will be linked to structural elements of the habitat and scaled up to landscape models to ensure that restored and revegetated areas will support wildlife. It will provide a new conceptual approach for restoration projects outcomes that will be used immediately to improve restoration design by the partner organisation and collaborators.
Funding
Australian Research Council ($497,261)
Scheme
Grant-Linkage Projects Round 1
Administered By
University of Tasmania
Research Team
Jones ME; Johnson CN; Burridge CP; Davidson NJ
Period
2013 - 2016
Grant Reference
LP130100949
Assessment of adequacy of possible high conservation Tasmania eucalypt forest (2012)$14,850
Funding
Professor Jonathan West ($14,850)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Johnson CN; Jones ME; Bateman BL
Year
2012
Genetic distinctiveness and connectivity of flesh-footed shearwater colonies (2012)$5,000
Funding
Holsworth Wildlife Research Endowment ($5,000)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Burridge CP; Johnson CN; Wenner TJ
Year
2012
Genetic distinctivness of providence petrel colonies: past, present and future (2012)$2,000
Funding
Birds Australia ($2,000)
Scheme
Grant-Stuart Leslie Bird Research Award
Administered By
University of Tasmania
Research Team
Burridge CP; Johnson CN; Wenner TJ
Year
2012
Population distinctiveness, sizes, and trajectories of Providence Petrels and Flesh-footed Shearwaters (2012)$7,000
Funding
Royal Zoological Society of New South Wales ($7,000)
Scheme
Grant-Paddy Pallin Foundation Science
Administered By
University of Tasmania
Research Team
Burridge CP; Johnson CN
Year
2012
Marsupials as ecosystem engineers (2012)$7,000
Funding
Holsworth Wildlife Research Endowment ($7,000)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Johnson CN; Kirkpatrick JB
Year
2012
Predator dynamics: the effect of top predator decline on mesopredators (2012 - 2015)$28,000
Funding
Holsworth Wildlife Research Endowment ($28,000)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Jones ME; Johnson CN; Andersen G
Period
2012 - 2015
Dogs for livestock protection (2012)$24,761
Funding
Winifred Violet Scott Charitable Trust ($24,761)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Johnson CN
Year
2012
Drought, disease or destiny? Identifying the causes of decline of the eastern quoll (2012)$5,000
Funding
Norman Wettenhall Foundation ($5,000)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Johnson CN; Nicol SC; Jones ME; Hawkins CE; Fancourt BA
Year
2012
Keystone effects of Australia's top predators: dingoes, devils and biodiversity (2011 - 2015)$1,360,000
Description
We will study the ways in which Australia's two largest land predators, the dingo and Tasmanian devil, structure ecosystems and sustain biodiversity in diverse landscapes across Australia. The project will be the first to use largescale experiments to understand the roles played by these species in Australia's ecology. It will provide new fundamental understanding of the ecological value of large predators, and will guide future management of the dingo and devil.
Funding
Australian Research Council ($1,360,000)
Scheme
Grant-Discovery Projects
Administered By
Australian Research Council
Research Team
Johnson CN; Jones ME; Letnic M; McCallum HI
Period
2011 - 2015
Grant Reference
DP110103069
Drought, Disease or Destiny? Identifying Causes of Decline of the Eastern Quoll (2011 - 2013)$20,500
Funding
Holsworth Wildlife Research Endowment ($20,500)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Johnson CN; Nicol SC; Jones ME; Hawkins CE; Fancourt BA
Period
2011 - 2013
Drought, Disease or Destiny? Identifying Causes of Decline of the Eastern Quoll (2011)$2,000
Funding
Wildlife Disease Association - Australasian section ($2,000)
Scheme
Grant-Research Award
Administered By
University of Tasmania
Research Team
Johnson CN; Nicol SC; Jones ME; Hawkins CE
Year
2011
Drought, Disease or Destiny? Identifying Causes of Decline of the Eastern Quoll (2011)$1,000
Funding
Trust of M.A. Ingram ($1,000)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Johnson CN; Jones ME; Hawkins CE; Fancourt BA
Year
2011
Drought, Disease or Destiny? Identifying Causes of Decline of the Eastern Quoll (2011)$1,500
Funding
Royal Zoological Society of New South Wales ($1,500)
Scheme
Grant-Ethel Mary Read
Administered By
University of Tasmania
Research Team
Johnson CN; Nicol SC; Jones ME; Hawkins CE; Fancourt BA
Year
2011
Drought, Disease or Destiny? Identifying Causes of Decline of the Eastern Quoll (2011)$1,000
Funding
Australian Wildlife Society ($1,000)
Scheme
Grant-University Students Scheme
Administered By
University of Tasmania
Research Team
Johnson CN; Nicol SC; Jones ME; Hawkins CE; Fancourt BA
Year
2011
Drought, Disease or Destiny? Identifying Causes of Decline of the Eastern Quoll (2011)$3,000
Funding
Department of Climate Change and Energy Efficiency ($3,000)
Scheme
Grant-NCCARF Terrestrial Biodiversity PhD Visit
Administered By
University of Tasmania
Research Team
Johnson CN; Nicol SC; Jones ME; Hawkins CE; Fancourt BA
Year
2011
Landscapes and Policy (LaP) (2011 - 2015)$6,780,000
Funding
Department of Environment (Cwth) ($6,780,000)
Scheme
Grant-National Environmental Research Pgm (NERP)
Administered By
University of Tasmania
Research Team
Lefroy EC; Bowman DMJS; Lockwood M; Johnson CN; Tisdell JG; Bindoff NL; Hardy A; Davies PE
Period
2011 - 2015
Mammal declines in northern Australia: science for conservation and recovery (2010 - 2013)$1,416,975
Description
Australia has already lost many mammal species to extinction. Dramatic and continuing declines of mammals across northern Australia mean that more species could be lost in the near future. There is still time to reverse these declines, but this will depend on a clear understanding of what is causing them. The project will use landscape-scale experiments to discover the factors that threaten mammals in northern Auastralia, focusing on predation by cats and its interaction with fire and grazing. We will provide knowledge to prevent extinctions and implement management by recovery.
Funding
Australian Research Council ($1,110,000)
Scheme
Grant-Linkage Projects Round 1
Administered By
Australian Research Council
Research Team
Johnson CN; Lawes M
Period
2010 - 2013
Grant Reference
LP100100033
Investigating how different kinds of forest management affect ... (1989 - 1992)$212,729
Funding
Australian Research Council ($212,729)
Scheme
Fellowship-Queen Elizabeth II
Administered By
University of Tasmania
Research Team
Johnson CN
Period
1989 - 1992
Grant Reference
88/19869
Significance of fungus and fire in the ecology and management of the Tasmanian bettong (1989 - 1991)$37,000
Funding
Tasmanian Forest Research Council ($37,000)
Scheme
Grant
Administered By
University of Tasmania
Research Team
Johnson CN; Cork SJ
Period
1989 - 1991

Research Supervision

Professor Johnson has supervised a total of 51 MSc/PhD students, with 39 completions and 12 students still in progress, as well as 26 Honours students.

Current

13

Completed

5

Current

DegreeTitleCommenced
PhDDensity, Movements and Hunting of Feral Cats in Relation to Fire and Grazing in Northern Australia2011
PhDResource Use and Coexistence of Sympatric Tasmanian Devils and Spotted-Tailed Quolls2011
PhDMarsupials and Ecosystem Engineers2011
MastersInteractions Between Predatory Mammals in Tasmania (Spotted Tailed Quolls, Tasmanian Devils and Feral Cats) and the Effects on Behaviour and Abundance within Very Differenct Environments in Central Northwest Tasmania2012
PhDRestoring resilience to wildlife populations - bats and owls2014
PhDLandscape genetics of Tasmanian mammals vulnerable to foxes and land alteration2014
PhDThe Socio-Ecology of Nature Conservation on Private Land in Tasmania2014
PhDRestoring resilience in wildlife populations: Critical Weight Range marsupial carnivores2014
PhDRestoring resilience in Tasmania's critical weight range (CWR) mammals2014
PhDRestoring Resilience in Wildlife Populations in the Tasmanian Midlands - Woodland Birds2015
PhDPredator-Prey Interactions Resulting From the Disease-Induced Decline of Tasmania's Apex Predator, theTasmanian Devil2015
PhDInteractions Among Predators and Impacts on Prey on Maria Island: Devils, Cats, Possums and Seabirds2015
PhDQuantitative Assessment of Feral Horse Abundance, their Impact on Flora and Fauna in the Australian Alps, and Control Techniques2015

Completed

DegreeTitleCompleted
PhDThe Dynamics of a Refuge: Factors supporting small mammal persistence in the north Kimberley, Western Australia
Candidate: Rosemary Hohnen
2016
PhDConstraints on Maternal Ability to Adjust Sex Ratios in Mammals
Candidate: Amy Margarett Edwards
2016
PhDDrought, Disease or Devil Declines? Identifying the Cause of Decline of the Eastern Quoll, Dasyurus viverrinus
Candidate: Bronwyn Anne Fancourt
2015
PhDSpatial Ecology of the Tasmanian Spotted-Tailed Quoll
Candidate: Shannon Nichole Troy
2014
PhDGuardian Dogs for Livestock Protection in Australia
Candidate: Linda Van Bommel
2013