Web Access Research Portal

Researcher: Ratkowsky, DA (Dr David Ratkowsky)

Fields of Research

Forestry Pests, Health and Diseases
Plant Biology
Ecological Applications
Forestry Management and Environment
Microbial Ecology
Biological Mathematics
Food Packaging, Preservation and Safety
Applied Statistics
Landscape Ecology
Biological Sciences
Manufacturing Safety and Quality
Forestry Sciences
Plant Systematics and Taxonomy
Marine and Estuarine Ecology (incl. Marine Ichthyology)
Animal Production
Plant Physiology
Host-Parasite Interactions
Food Processing
Biochemistry and Cell Biology
Sociology and Social Studies of Science and Technology
Analysis of Algorithms and Complexity
Animal Breeding
Numerical and Computational Mathematics
Crop and Pasture Production
Fisheries Sciences
Cell Development, Proliferation and Death
Plant Developmental and Reproductive Biology
Agriculture, Land and Farm Management
Applied Mathematics
Nutrition and Dietetics
Invasive Species Ecology
Phylogeny and Comparative Analysis
Ecological Physiology
Crop and Pasture Improvement (Selection and Breeding)
Animal Growth and Development
Thermodynamics and Statistical Physics
Stochastic Analysis and Modelling
Environmental Chemistry (incl. Atmospheric Chemistry)
Post Harvest Horticultural Technologies (incl. Transportation and Storage)
Farm Management, Rural Management and Agribusiness
Food Sciences

Research Objectives

Forest and Woodlands Flora, Fauna and Biodiversity
Food Safety
Expanding Knowledge in the Biological Sciences
Hardwood Plantations
Expanding Knowledge in the Environmental Sciences
Native Forests
Horticultural Crops
Expanding Knowledge in the Mathematical Sciences
Dairy Cattle
Processed Food Products and Beverages (excl. Dairy Products)
Citrus Fruit
Softwood Plantations
Unprocessed or Minimally Processed Fish
Coastal and Estuarine Flora, Fauna and Biodiversity
Bakery Products
Expanding Knowledge in the Agricultural and Veterinary Sciences
Natural Hazards in Fresh, Ground and Surface Water Environments
Marine Flora, Fauna and Biodiversity
Urban and Industrial Water Management
Plant Production and Plant Primary Products
Carcass Meat (incl. Fish and Seafood)
Unprocessed or Minimally Processed Milk
Beef Cattle
Mushrooms and Truffles
Pasture, Browse and Fodder Crops
Forest and Woodlands Land Management
Processed Fish and Seafood Products
Processed Meat Products
Coastal and Estuarine Land Management
Control of Pests, Diseases and Exotic Species

Career Best Publications

Research Publications

Antibacterial metabolites from Australian macrofungi from the genus Cortinarius; Phytochemistry: International Journal of Plant Biochemistry
Ganoderma basidiospore germination responses as affected by spore density, temperature and nutrient media; Tropical Plant Pathology
A checklist of the macrofungi at the Woodvine Nature Reserve; The Tasmanian Naturalist
A comparison of macrofungi in young silvicultural regeneration and mature forest at the Warra LTER Site in southern forests of Tasmania; Tasforests
A Consistent Correlation Between Monounsaturated and n-3 Polyunsaturated Fatty Acids in Flesh of Fish Caught at Different Latitudes; ASEAN Food Journal
A Field Guide to Tasmanian Fungi; The Tasmanian Field Naturalists Club Inc.
A Field Guide to Tasmanian Fungi; Tasmanian Field Naturalists Club
A general leaf area geometric formula exists for plants - evidence from the simplified Gielis equation; Forests
A little-known scientific club in Hobart, Tasmania - Its Early Years; Papers and Proceedings of the Royal Society of Tasmania
A preliminary census of the macrofungi of Mount Wellington, Tasmania - The Agaricales; Royal Society of Tasmania, Hobart. Papers and Proceedings
A Preliminary Census of the Macrofungi of Mt Wellington, Tasmania - The Ascomycota; Papers and Proceedings of the Royal Society of Tasmania
A Preliminary Census of the Macrofungi of Mt Wellington, Tasmania - The Non-Gilled Basidiomycota; Royal Society of Tasmania, Hobart. Papers and Proceedings
A preliminary census of the macrofungi of Mt Wellington, Tasmania - the sequestrate species; Papers and Proceedings of the Royal Society of Tasmania
A simple method for measuring the bilateral symmetry of leaves; Symmetry
Aggregated retention and macrofungi: a case study from the Warra LTER site, Tasmania; Tasforests
An assessment of ectomycorrhizal fungal communities in Tasmanian temperate high-altitude Eucalyptus delegatensis forest reveals a dominance of the Cortinariaceae; Mycorrhiza
An inventory of macrofungi observed in Tasmanian forests over a six-year period; Tasforests
Are Kelp Gulls Larus dominicanus replacing Pacific Gulls L. pacificus in Tasmania?; Australian Field Ornithology
Assessing defoliation and discolouration for Eucalyptus globulus plantations: variance of tree, plot and age-class components in a pilot study at Wattle Range, South Australia
Association of Eucalyptus globulus leaf anatomy with susceptibility to Teratosphaeria leaf disease; Forest Pathology
Austrocolorone B and austrocolorin B1, cytotoxic anthracenone dimers from the Tasmanian mushroom Cortinarius vinosipes Gasparini; Tetrahedron Letters
Choosing probability distributions for modelling generation time variability; Journal of Applied Bacteriology
Choosing the number of principal coordinates when using CAP, the canonical analysis of principal coordinates; Austral Ecology
Claustula: The Forgotten Phalloid; Mycologist
Comparative evaluation of a new lactation curve model for pasture-based Holstein-Friesian dairy cows; Journal of Dairy Science
Comparing indigenous and European-based concepts of seasonality for predicting macrofungal fruiting activity in Tasmania; Australasian Mycologist
Comparison of five methods for parameter estimation under Taylor's power law; Ecological Complexity
Comparison of two ontogenetic growth equations for animals and plants; Ecological Modelling
Contribution of harvest residues to nutrient cycling in a tropical Acacia mangium Willd. pantation; Forests
Dead wood matters - a snapshot in time of one hectare of the floor of a eucalyptus obliqua forest in Southern Tasmania; Tasmanian Naturalist
Development of growth limits (growth/no growth interface) modelling and its application to predictive food microbiology
Diversity and ecology of epigeous ectomycorrhizal macrofungal assemblages in a native wet eucalypt forest in Tasmania, Australia; Fungal Ecology
Diversity and phenology of the macrofungal assemblages supported by litter in a tall, wet Eucalyptus obliqua forest in southern Tasmania, Australia; Fungal Ecology
Does the law of diminishing returns in leaf scaling apply to vines? - Evidence from 12 species of climbing plants; Global Ecology and Conservation
Ease of access to an alternative food source enables wallabies to strip bark in Tasmanian Pinus radiata plantations; Forests
Effect of environmental factors on intra-specific inhibitory activity of Carnobacterium maltaromaticum; Microorganisms
Effect of glucose, pH and lactic acid on Carnobacterium maltaromaticum, Brochothrix thermosphacta and Serratia liquefaciens within a commercial heat-shrunk vacuum-package film; Food Microbiology
Effects of constant and fluctuating temperatures on development rates and longevity of Diaphorencyrtus aligarhensis; Journal of Economic Entomology
Empirical model with excellent statistical properties for describing temperature-dependent developmental rates of insects and mites; Annals of the Entomological Society of America
FungiFlip - A Pictorial Guide to Tasmanian Fungi
Generalised Canonical Correlations Analysis for Explaining Macrofungal Species Assemblages; Australasian Mycologist
Genetic and environmental factors influencing milk, protein and fat yields of pasture-based dairy cows in Tasmania; Animal Production Science
Global diversity and geography of soil fungi; Science
Growth limits of Listeria monocytogenes as a function of temperature, pH, NaCl, and lactic acid; Applied and Environmental Microbiology
Growth of fishes, crustaceans and molluscs: estimation of the von Bertalanffy, Logistic, Gompertz and Richards curves and a new growth model; Marine Ecology Progress Series
Impacts of Teratosphaeria leaf disease on plantation Eucalyptus globulus productivity; Forest Pathology
Influence of the physical dimension of leaf size measures on the goodness of fit for Taylor's power law using 101 bamboo taxa; Global Ecology and Conservation
Investigating the commonality of growth rates of domains Bacteria and Archaea; International Society for Bayesian Analysis (ISBA) Conference
Keys to the Tasmanian families and genera of gilled fungi; The Tasmanian Naturalist
Leaf area-length allometry and its implications in leaf shape evolution; Trees
Macrofungi in early stages of forest regeneration in Tasmania's southern forests; Tasforests
Major environmental and biological factors influencing the fatty acid composition of seafood from Indo-Pacific to Antarctic waters; Recent Research Development in Lipids Research
Maximising growth and sawlog production from Acacia hybrid plantations in Vietnam; New Forests
Milk composition and growth in wild and captive Tasmanian bettongs, Bettongia gaimardi (Marsupialia); Journal of Comparative Physiology B=Biochemical Systemic and Environmental Physiology
Model Fitting and Uncertainty; CRC Series in Contemporary Food Science - Modeling Microbial Responses in Food
Modelling the bacterial growth/no growth interface; Letters in Applied Microbiology
Modelling the combined effect of salt, sorbic acid and nisin on the probability of growth of Clostridium sporogenes in high moisture processed cheese analogue; International Dairy Journal
Modelling the combined effects of salt, sorbic acid and nisin on the probability of growth of Clostridium sporogenes in a controlled environment (nutrient broth); Food Control
Modelling the combined temperature and salt (NaCl) limits for growth of a pathogenic Escherichia coli strain using nonlinear logistic regression; International Journal of Food Microbiology
Modelling the effect of stocking rate on the lactation profiles of grazing Holstein - Friesian dairy cows using cubic splines. In: Pietro Celi (Editor) Current Topics in Dairy Production, Volume 13; Dairy Research Foundation (DRF) Symposium
Modelling the effects of temperature, water activity, pH and lactic acid concentration on the growth rate of Escherichia coli; International Journal of Food Microbiology
Modelling the growth limits (growth/no growth interface) of Escherichia coli as a function of temperature, pH, lactic acid concentration, and water activity; Applied and Environmental Microbiology
Modelling the Growth Rate of Escherichia coli as a Function of pH and Lactic Acid Concentration; Applied and Environmental Microbiology
Multilocus phylogenetic analyses reveal unexpected abundant diversity and significant disjunct distribution pattern of the Hedgehog Mushrooms (Hydnum L.); Scientific Reports
Needle fungi in young Tasmanian Pinus radiata plantations in relation to elevation and rainfall; New Zealand Journal of Forestry Science
Not all dead wood is the same - a selection error reveals an unusual emergence of beetles from decaying celerytop pine logs; Tasmanian Naturalist
Predictive microbiology theory and application: is it all about rates?; Food Control
Predictive microbiology, theory and application: is it all about rates?; 7th International Conference on Predictive Microbiology of Foods (7ICPMF)
Predictive microbiology: towards the interface and beyond; International Journal of Food Microbiology
Predictive model for the growth of spoilage bacteria on modified atmosphere packaged Atlantic salmon produced in Australia; Food Microbiology
Proportional relationship between leaf area and the product of leaf length and width of four types of special leaf shapes; Forests
Protein thermodynamics can be predicted directly from biological growth rates; PLoS One
Quantifying stem discoloration and decay following pruning and thinning an Acacia hybrid plantation; Forest Pathology
Quantifying the hurdle concept by modelling the bacterial growth /no growth interface; International Journal of Food Microbiology
Quantitative Microbiology: A Basis for Food Safety; Emerging Infectious Diseases
Refining the prediction of potential malt fermentability by including an assessment of limit dextrinase thermostability and additional measures of malt modification, using two different methods for multivariate model development; Journal of the Institute of Brewing
review of 'The Overland Track, Cradle Mountain to Lake St Clair: A complete guide to walking, flora, fauna and history' by Warwick Sprawson, Red Dog Books (2010), softback, 188 pages ISBN 9781742035116; The Tasmanian Naturalist
Screening for host responses in Acacia to a canker and wilt pathogen, Ceratocystis manginecans; Forest Pathology
Seeing the forest for the trees - floristic composition in a tall, wet Eucalyptus obliqua forest of Southern Tasmania; Tasmanian Naturalist
Some comments on Huang, L. (2010). Growth kinetics of Escherichia coli O157: H7 in mechanically-tenderized beef; International Journal of Food Microbiology
Some examples of, and some problems with, the use of nonlinear logistic regression in predictive food microbiology; International Journal of Food Microbiology
Some examples of, and some problems with, the use of nonlinear logistic regression in predictive food microbiology; Third International Conference on Predictive Modelling in Foods
Some interesting fungal records for Tasmania; The Tasmanian Naturalist
Some New Species of the Strophariaceae (Agaricales) in Tasmania; Australasian Mycologist
Special Issue 3rd International Conference on Predictive Modelling in Foods; International Journal of Food Microbiology
Tasmanian Validation of a National Pesticide Behaviour Model for Better Land Management Outcomes; Joint Soils Conference of the Australian and New Zealand Societies of Soil Science
Taylorís power law for leaf bilateral symmetry; Forests
Temperate eucalypt forest decline is linked to altered ectomycorrhizal communities mediated by soil chemistry; Forest Ecology and Management
Tests for dispersion among macrofungal species assemblages; Australasian Mycologist
The biokinetic spectrum for temperature; PLoS One
The biokinetic spectrum for temperature: astrobiological significance; 2016 Australasian Astrobiology Meeting
The ecology and diversity of wood-inhabiting macrofungi in a native Eucalyptus obliqua forest of southern Tasmania, Australia; Fungal Ecology
The fungal genus Lentinellus in Tasmania; The Tasmanian Naturalist
The generalized Gielis geometric equation and its application; Symmetry
The influence of temperature variation on life history Parameters and thermal performance curves of Tamarixia radiata (Hymenoptera: Eulophidae), a parasitoid of the Asian citrus psyllid (Hemiptera: Liviidae); Journal of Economic Entomology
The international conservation importance of Welsh 'waxcap' grasslands; Mycosphere Online
The maximum growth rate for life on earth; The Astrobiology Science Conference
The maximum growth rate of life on Earth; International Journal of Astrobiology
The scaling relationships of leaf biomass vs. leaf surface area of 12 bamboo species; Global Ecology and Conservation
The taxonomic foundation, species circumscription and continental endemisms of Singerocybe: evidence from morphological and molecular data; Mycologia
Thermodynamics and temperature-dependent growth
Two new combinations in the Strophariaceae (Agaricales) of Tasmania; Australasian Mycologist
Unifying temperature effects on the growth rate of bacteria and the stability of globular proteins; Journal of Theoretical Biology
Universality of thermodynamic constants governing biological growth rates; PLoS One
Visualising Macrofungal Species Assemblage Compositons using Canonical Discriminant Analysis; Australasian Mycologist
Wood-inhabiting macrofungal assemblages in 43-year-old regenerating wet Eucalyptus Obliqua L'Hér. Forest; Royal Society of Tasmania, Hobart. Papers and Proceedings

Research Projects

Are self-organisation and indirect interactions important determinants of the dynamics, stability and invasion resistance of marine epibenthic community; Australian Research Council (ARC)
Comparing the Macrofungi in Burnt vs Unburnt Areas in an Aggregated Retention Coupe at the Warra LTER; Forestry Tasmania (FT)
Development of kinetic and probability models to describe microbial behaviour under severely growth limiting conditions; Australian Research Council (ARC)
Surveys and Comparisons of Macrofungi in Several Silvicultural Management Treatments at the Warra LTER; Forestry Tasmania (FT)
Predictive models.

Research Candidate Supervision