Welcome to the DEB laboratory
Dynamic Energy Budget (DEB) theory
is about the processes of substrate uptake and use by organisms throughout their life cycle.
This electronic laboratory for work on the DEB theory is a site where
you can download software that may be useful for research and education purposes and access data collections.
It aims to facilitate the application of the theory, and to stimulate collaboration.
Like a real laboratory, we have some artwork on the wall and a library.
| artwork | The three-dimensional state space plot, presented in the artwork, illustrates the asymptotic behaviour of a tri-trophic chain in a chemostat. Click on it and it moves. You want to see a close up? |
| We also have a poem | |
| DEBlib | Collection of papers in which DEB theory plays a substantial role |
Code packages
| DEBtool | is a package, written in Matlab and
Octave,
that can be used to study the ecophysiological behaviour of animals,
plants, algae, microorganisms and symbioses in a graphical way.
Effects of chemicals can be studied.
It deals with metabolism and interactions between individuals and species;
it also allows to fit DEB models to your data.
Script-files are included that produce the figures of the
DEB-book.
Download DEBtool_M from GitHub (Matlab version).
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| AmPtool |
is an extension of DEBtool_M to support the analysis of the AmP data base,
and can only be used in combination with AmPdata.
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| DEBtox | Matlab scripts for the simultaneous analysis of multiple endpoints in ecotoxicity tests, written by Tjalling Jager |
| AmPtox | A set of examples that show the analysis of results of toxicity tests using parameters from the AmP collection |
| PlotReader | extracts coordinates from plots of data, written by Jorn Bruggeman. |
Data bases
| Add_my_pet | Collection of data and parameters values of the standard DEB model for a wide variety of species
(including representatives of all large phyla and of all 13 chordate classes) and the Matlab-files that obtain the parameters from data using DEBtool.
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| DEB Shiny app | Illustrates weight, length, food intake and mineral trajectories as well as energy fluxes and weight-respiration/reproduction relationships
at constant food and temperature for all the species in the AmP collection.
The user can modify the food or temperature level and also explore the effect of the covariation rules (= scaling rules) and altering allocation to reproduction (kappa).
Please direct any enquiries about this app to Michael Kearney
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| DEBsea Shiny app | Like the DEB Shiny app, but now for sea water species using satellite data for site-specific surface water temperatures during a specified period.
The user can modify the food level and also explore the effect of the 'covariation rules (= scaling rules) and altering allocation to reproduction (kappa).
Please direct any enquiries about this app to Michael Kearney
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| DEB species explorer | A web server that finds a proposal for DEB parameter estimates for any animal species, by averaging parameter values among related species, using the AmP collection.
Please direct any enquiries about this app to Jorn Bruggeman
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| Phyto_pars | Collection of values for the parameters of the Monod parameters for freshwater phytoplankton species. Method. Please direct any enquiries about this app to Jorn Bruggeman |
Supporting material for the 3rd edition of the DEB-book, called DEB3:
| Summary of concepts | Presentation and discussion of DEB concepts, which follows the chapters and sections of the DEB3. It avoids the use of mathematics and also tests against experimental data. | ||||||||||||
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| Comments | Explanations and extensions of the DEB3; they follow the chapters and sections of this book. It changes frequently | ||||||||||||
| DEB notation | This document explains the notation that is used in DEB theory, in the hope that it helps to standardise it for further development of de theory. It changes regularly. | ||||||||||||
| Errata | Errata for the DEB3. | ||||||||||||
| Micro-lectures | Collection of some 500 PowerPoint slides with short comments by sound,
which follows the chapters and sections of DEB3 (0.5 Gb).
You can also download the ppt-files separately, without sound tracks
Last update: 2014/04/15 |
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| Life-cycles | These sheets give a mondern overview of the classification of organisms as background for the many species mentioned in DEB3. | ||||||||||||
Course material
| Upcoming course | The DEB2023 course will take place on moodle, starting with DEB MOOC (DEB tele-course) at March, 2023. As usual, it will have a tele-part, a school and a symposium |
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| Exercises & answers | Collection of exercises, which follows the chapters of DEB3. |
| Quizzes & checks | These quizzes might help you to check your progress in the understanding of DEB theory. They can be used as part of the DEB tele-course. |
| Essays & theses | The essays were written as part of a DEB tele-course. Theses on DEB theory and its applications are available in the DEB library. |
| Questions & answers | These sites give collections of questions and answers that arose during the DEB tele-courses. The numbering follows the chapters and sections of the DEB-books, editions 2 and 3. |
| Basic methods in Theoretical biology | This document summarises basic methods for work in quantitative biology. Examples illustrate the application of these methods and a ppt some important features. |