In science, ecodynamics is the study of the dynamics and thermodynamics of ecosystems. The term is similar to ecological thermodynamics, which is the thermodynamical study of ecosystems.

The term “ecodynamics”, as used in ecology, dates back to at least before the early 1980s. French-born British economist and philosopher Edward Goldsmith used the term in his 1981 article "Thermodynamics or Ecodynamics". [1] The International Journal of Ecodynamics, launched in 2005, according to its founders, is based on the work of nonequilibrium thermodynamics works of Belgian chemist Ilya Prigogine. [2]

Goldsmith’s two laws of ecodynamics
In ecodynamics, Goldsmith is known to have argued that thermodynamics does not apply to dynamics of ecosystems and on this logic positioned two “laws of ecodynamics”, that he wished to set up against the first two laws of thermodynamics. Goldsmith’s first law of ecodynamics states that: [3]

“Living things seek to conserve their information, structure, and behavior”

Goldsmith's second law of ecodynamics states that:

“Natural systems tend towards stability, not in the direction of entropy or disorder, but towards climax, which must correspond to ecological equilibrium, a point in which the system ceases to grow.”

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The term “ecodynamics”, to note, in other contexts is considered as the study of the dynamics and thermodynamics of economic systems.

1. Goldsmith, Edward. (1981). “Thermodynamics or Ecodynamics”, The Ecologist, Vol. 11, No. 4, July / August.
2. Jimenez, Anisa S. (2006). “Institute of Ecology professor to receive Senior Researcher Prigogine Medal - in recognition of UGA career”, News Bureau, The University of Georgia.
3. Sale, Kirkpatrick. (2000). Dwellers in the Land (pgs. 67-68). University of Georgia Press.

Further reading
‚óŹ Bonchev, Danail and Rouvray, D. H. (2005). Complexity in Chemistry, Biology, and Ecology (ch. 7: The Complex Nature of Ecodynamics, by Robert E. Ulanowicz, pgs. 303-30). Birkhäuser.

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