Next Article in Journal
Estimating the Entropy of Binary Time Series: Methodology, Some Theory and a Simulation Study
Previous Article in Journal
Symmetry Rules: How Science and Nature Are Founded on Symmetry. By Joe Rosen. Springer: Berlin. 2008, XIV, 305 p. 86 illus., Hardcover. CHF 70. ISBN: 978-3-540-75972-0
Open AccessArticle

Quantum and Ecosystem Entropies

College of Marine and Earth Sciences, University of Delaware, Newark, Delaware 19716, USA
Entropy 2008, 10(2), 58-70;
Received: 26 March 2008 / Revised: 12 June 2008 / Accepted: 15 June 2008 / Published: 17 June 2008
Ecosystems and quantum gases share a number of superficial similarities including enormous numbers of interacting elements and the fundamental role of energy in such interactions. A theory for the synthesis of data and prediction of new phenomena is well established in quantum statistical mechanics. The premise of this paper is that the reason a comparable unifying theory has not emerged in ecology is that a proper role for entropy has yet to be assigned. To this end, a phase space entropy model of ecosystems is developed. Specification of an ecosystem phase space cell size based on microbial mass, length, and time scales gives an ecosystem uncertainty parameter only about three orders of magnitude larger than Planck’s constant. Ecosystem equilibria is specified by conservation of biomass and total metabolic energy, along with the principle of maximum entropy at equilibria. Both Bose - Einstein and Fermi - Dirac equilibrium conditions arise in ecosystems applications. The paper concludes with a discussion of some broader aspects of an ecosystem phase space. View Full-Text
Keywords: Entropy; ecology; quantum statistical mechanics. Entropy; ecology; quantum statistical mechanics.
MDPI and ACS Style

Kirwan, A.D., Jr. Quantum and Ecosystem Entropies. Entropy 2008, 10, 58-70.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

Only visits after 24 November 2015 are recorded.
Back to TopTop