Calamagrostis model revisited: Matrix calibration as a constraint maximization problem

Dmitrii O. Logofet

Ecological Modelling, 2013, vol. 254, issue C, 71-79

Abstract: A matrix model for age-stage-structured population dynamics of Calamagrostis canescens, a perennial grass species colonizing forest clear-cut areas, was calibrated before from a type of data called ‘identified individuals with unknown parents’ (Logofet, 2008) in order to estimate λ1, the dominant eigenvalue of the projection matrix. A number of methods were applied to tackle the ‘reproductive uncertainty’ in data, and the output variety contained λ1 both greater and less than 1 (Logofet, 2008), leaving the estimation uncertain. An ‘adaptation conjecture’ was then proposed that reduced the calibration to a nonlinear constraint maximization problem and provided for a satisfactory outcome.

Keywords: Age-stage structure; Life cycle graph; Polyvariant ontogeny; Projection matrix; Dominant eigenvalue; Identified individuals; Reproductive uncertainty; Adaptation principle; Potential-growth indicators; Linear programming (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (5)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:254:y:2013:i:c:p:71-79

DOI: 10.1016/j.ecolmodel.2013.01.018

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