On the energy trait control phenomena in ecosystems

Xi Huang

Ecological Modelling, 2008, vol. 211, issue 1, 36-46

Abstract: Prevailing ecological control theory is based on predation phenomena, it implies that a symbiotic ecosystem results from the predator imposing on prey a low, stable equilibrium. Mathematically, such dynamic model, like prevailing control equations, stresses directly regulating the state of prey, the controlled population, while the input variable of the control is state variable of the predator population. However, predation relation is not unique theorem to explain every kind of interaction between populations, the interactions without energy or biomass exchange are scarcely depicted by the dynamic models which depict the interaction based on principle of predation. How to model the interrelation deals with how to comprehend the interaction mechanism. Many researchers have recognized that some interactions work in indirect ways, regulating state of a population via imposing on its ecological/physiological trait is also one mode of interaction between the populations. These phenomena broadly exist in ecosystems. If coefficients of state equation of the regulated population are defined in terms of their ecological trait, regulating the coefficients to vary the population state may implement a kind of particular control processes, namely, trait control.

Keywords: Trait control; State control; Indirect effects; Ecological field; Life Energy System model (LESM) (search for similar items in EconPapers)
Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:211:y:2008:i:1:p:36-46

DOI: 10.1016/j.ecolmodel.2007.08.020

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