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observed range for temporal mean-variance scaling exponents can be explained by reproductive correlation

The mean-variance scaling relationship known as Taylor's power law has been well documented empirically over the past four decades but a general theoretical explanation for the phenomenon does not exist. Here we provide an explanation that relates empirical patterns of temporal mean-variance sc...

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Published in:	Oikos 2007, Vol.116 (1), p.174-180
Main Authors:	Ballantyne IV, Ford, J. Kerkhoff, Andrew
Format:	Article
Language:	English
Subjects:	Animal and plant ecology Animal populations Animal reproduction Animal, plant and microbial ecology Biological and medical sciences Correlation analysis Covariance Demecology Demography Forum Fundamental and applied biological sciences. Psychology General aspects growth models Mating behavior Population dynamics Population ecology population growth Population mean Population size Population studies Power laws reproductive behavior Statistical variance Theory Variance analysis
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creator	Ballantyne IV, Ford J. Kerkhoff, Andrew
description	The mean-variance scaling relationship known as Taylor's power law has been well documented empirically over the past four decades but a general theoretical explanation for the phenomenon does not exist. Here we provide an explanation that relates empirical patterns of temporal mean-variance scaling to individual level reproductive behavior. Initially, we review the scaling behavior of population growth models to establish theoretical limits for the scaling exponent b that is in agreement with the empirically observed range (1
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Intermediate exponents, which are common empirically, can be generated through the decay of reproductive covariance with increasing population size. Finally, we describe how the link between reproductive correlation and the scaling exponent provides a way to infer properties of individual-level reproductive behavior, such as the relative influence of demographic stochasticity, from a macroecological pattern.</description><identifier>ISSN: 0030-1299</identifier><identifier>EISSN: 1600-0706</identifier><identifier>DOI: 10.1111/j.2006.0030-1299.15383.x</identifier><identifier>CODEN: OIKSAA</identifier><language>eng</language><publisher>Copenhagen: Copenhagen : Blackwell Publishing Ltd</publisher><subject>Animal and plant ecology ; Animal populations ; Animal reproduction ; Animal, plant and microbial ecology ; Biological and medical sciences ; Correlation analysis ; Covariance ; Demecology ; Demography ; Forum ; Fundamental and applied biological sciences. 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source	JSTOR Archival Journals and Primary Sources Collection; Wiley-Blackwell Read & Publish Collection
subjects	Animal and plant ecology Animal populations Animal reproduction Animal, plant and microbial ecology Biological and medical sciences Correlation analysis Covariance Demecology Demography Forum Fundamental and applied biological sciences. Psychology General aspects growth models Mating behavior Population dynamics Population ecology population growth Population mean Population size Population studies Power laws reproductive behavior Statistical variance Theory Variance analysis
title	observed range for temporal mean-variance scaling exponents can be explained by reproductive correlation
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