D
David A. Ratkowsky
Researcher at University of Tasmania
Publications - 128
Citations - 8523
David A. Ratkowsky is an academic researcher from University of Tasmania. The author has contributed to research in topics: Eucalyptus obliqua & Species richness. The author has an hindex of 30, co-authored 120 publications receiving 7298 citations. Previous affiliations of David A. Ratkowsky include Hobart Corporation.
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Journal ArticleDOI
Global diversity and geography of soil fungi
Leho Tedersoo,Mohammad Bahram,Sergei Põlme,Urmas Kõljalg,Nourou S. Yorou,Ravi L. C. Wijesundera,Luis Villarreal Ruiz,Aída M. Vasco-Palacios,Pham Q uang Thu,Ave Suija,Matthew E. Smith,Cathy Sharp,Erki Saluveer,Alessandro Saitta,Miguel Rosas,Taavi Riit,David A. Ratkowsky,Karin Pritsch,Kadri Põldmaa,Meike Piepenbring,Cherdchai Phosri,Marko Peterson,Kaarin Parts,Kadri Pärtel,Eveli Otsing,Eduardo Nouhra,André Ledoux Njouonkou,R. Henrik Nilsson,Luis N. Morgado,Jordan R. Mayor,Tom W. May,Luiza Majuakim,D. Jean Lodge,Su S ee Lee,Karl-Henrik Larsson,Petr Kohout,Kentaro Hosaka,Indrek Hiiesalu,Terry W. Henkel,Helery Harend,Liang-Dong Guo,Alina Greslebin,Gwen Grelet,József Geml,Genevieve Gates,W. Dunstan,Chris W. Dunk,Rein Drenkhan,John Dearnaley,André De Kesel,Tan Dang,Xin Chen,Franz Buegger,Francis Q. Brearley,Gregory Bonito,Sten Anslan,Sandra E. Abell,Kessy Abarenkov +57 more
TL;DR: Diversity of most fungal groups peaked in tropical ecosystems, but ectomycorrhizal fungi and several fungal classes were most diverse in temperate or boreal ecosystems, and manyfungal groups exhibited distinct preferences for specific edaphic conditions (such as pH, calcium, or phosphorus).
Journal ArticleDOI
Relationship between temperature and growth rate of bacterial cultures.
TL;DR: A linear relationship between in square root of growth rate constant (r) and temperature (T), namely, square root = b (T - T0), where b is the regression coefficient and T0 is a hypothetical temperature which is an intrinsic property of the organism.
Journal ArticleDOI
Model for bacterial culture growth rate throughout the entire biokinetic temperature range.
TL;DR: The "square-root" relationship proposed by Ratkowsky et al. for modeling the growth rate of bacteria below the optimum growth temperature was extended to cover the full biokinetic temperature range and the least-squares estimators of the parameters of the model were almost unbiased and normally distributed.
Journal ArticleDOI
Modelling the growth rate of Escherichia coli as a function of pH and lactic acid concentration.
TL;DR: The growth rate responses of Escherichia coli M23 to suboptimal pH and lactic acid concentration were determined and growth rate was linearly related to hydrogen ion concentration in the absence of lactic Acid.
Journal ArticleDOI
Growth limits of Listeria monocytogenes as a function of temperature, pH, NaCl, and lactic acid.
TL;DR: The models developed will improve the rigor of microbial food safety risk assessment and provide quantitative data in a concise form for the development of safer food products and processes.