Lecture 4-Applications of DEB theory to ecotoxicology and nanotoxicology
Δημοσιεύτηκε στις 22 Μαΐ 2013
Dynamic Energy Budget Theory with Applications to Ecology and Ecotoxicology
Lectures by Roger Nisbet -- winter 2013
Dynamic
energy budget (DEB) theory1 is a powerful theoretical framework for
relating suborganismal (biochemical, genetic, physiological) processes
to organismal performance and, thereby, to populations and ecosystems.
DEB theory is also a powerful tool for ecotoxicology, and has been
recently used in models describing the impact of nanomaterials in the
environment. Although mastering the details of the theory requires
considerable time investment, the principles of mass and energy
budgeting are
straightforward and are widely appreciated by
biologists. DEB models describe the rates at which an organism
assimilates energy and elemental matter from food and uses them for
maintenance, growth, development, and reproduction. These physiological
rates depend on the state of the organism (e.g., age, size, maturity)
and its environment (e.g., food density, temperature, contaminants).
Changes in physiological rates and fluxes of elemental matter impact
population and ecosystem dynamics. The primary objective of these
lectures is to introduce DEB principles in a maximally simple context.
The theory will be illustrated with examples involving toxicants in
whales, the population dynamics of waterfleas, nanotoxicology in
bacteria -- and more.
Lectures by Roger Nisbet -- winter 2013
Dynamic
energy budget (DEB) theory1 is a powerful theoretical framework for
relating suborganismal (biochemical, genetic, physiological) processes
to organismal performance and, thereby, to populations and ecosystems.
DEB theory is also a powerful tool for ecotoxicology, and has been
recently used in models describing the impact of nanomaterials in the
environment. Although mastering the details of the theory requires
considerable time investment, the principles of mass and energy
budgeting are
straightforward and are widely appreciated by
biologists. DEB models describe the rates at which an organism
assimilates energy and elemental matter from food and uses them for
maintenance, growth, development, and reproduction. These physiological
rates depend on the state of the organism (e.g., age, size, maturity)
and its environment (e.g., food density, temperature, contaminants).
Changes in physiological rates and fluxes of elemental matter impact
population and ecosystem dynamics. The primary objective of these
lectures is to introduce DEB principles in a maximally simple context.
The theory will be illustrated with examples involving toxicants in
whales, the population dynamics of waterfleas, nanotoxicology in
bacteria -- and more.
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