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1 December 2003 Use of the β-function to estimate the skewness of species responses
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Abstract
Response of a species to an environmental variable may be modeled and predicted using a wide spectrum of different functions. Contrary to other functions (Gaussian, polynomial etc), all parameters of the β-function are interpretable in ecological terms. However, computational difficulties in the determination of the β-function parameters initiated controversial debates on the applicability and usefulness of this function in vegetation modelling and gradient analysis. We propose a simple algorithm for fitting the β-function to observed data. Analytic properties of the algorithm (its ability to recover the known species responses along gradients) are tested using a series of simulated data. In most cases the algorithm correctly estimated parameters of the simulated responses.
Branko Karadžić, Saša Marinković and Dragan Katarinovski "Use of the β-function to estimate the skewness of species responses," Journal of Vegetation Science 14(6), (1 December 2003). https://doi.org/10.1658/1100-9233(2003)014[0799:UOTFTE]2.0.CO;2
Received: 11 September 2002; Accepted: 3 March 2003; Published: 1 December 2003
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