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Database of 478 allometric equations to estimate biomass for Mexican trees and forests [PDF]
Annals of Forest Science, 2015 International audienceKey messageWe present a comprehensive database of 478 allometric equations to estimate biomass of trees and other life forms in Mexican forest and scrubland ecosystems.ContextAccurate estimation of standing biomass in forests is a ...
Fabiola Rojas-Garcia +2 more
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Exponential growth and allometric equations
Journal of Theoretical Biology, 1982Abstract Earlier the simple exponential growth law has been used when attempts have been made to explain theoretically the existence of allometric equations in biology (Bertalanffy, 1968; Giinther, 1975). We show here that the exponential growth law in which the proportion coefficient also depends on time is a better approximation.
J, Perkkiö, R, Keskinen
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Techniques for estimating allometric equations
Journal of Morphology, 1975AbstractMorphologists have long been aware that differential size relationships of variables can be of great value when studying shape. Allometric patterns have been the basis of many interpretations of adaptations, biomechanisms, and taxonomies. It is of importance that the parameters of the allometric equation be as accurate estimates as possible ...
B J, Manaster, S, Manaster
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Interpretation of the Coefficient in the Allometric Equation
The American Naturalist, 1965Interpretation of the coefficient, b, in the allometric equation, y = b xk, is much disputed, and many presume it devoid of biological meaning. Difficulties impeding the interpretation of b are resolved: 1) biological significance cannot be dismissed on dimensional grounds; 2) the interval over which the measurements are valid must be stated as part of
John F. White, Stephen Jay Gould
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On allometric equations for predicting body mass of dinosaurs
Journal of Zoology, 2010Packard and colleagues investigate the prediction of the body mass of dinosaurs, using allometric models, advocating parameter estimation via direct optimization of a least-squares criterion on arithmetic axes rather than the conventional approach based on linear least-squares regression on logarithmic axes.
Cawley, G. C., Janacek, G. J.
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Estimation of plant biomass based on the allometric equation
Canadian Journal of Forest Research, 1981Estimation of the parameters in the allometric equation by fitting a simple linear regression to the logarithmically transformed variables results in biased estimates of the arithmetic mean. This bias expressed as a percent of the mean approaches the limit −(1 − e−σ2/2) (100) as n increases.
David O. Yandle, Harry V. Wiant Jr.
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Allometric equations for predicting body mass of dinosaurs
Journal of Zoology, 2009AbstractWe use data from the literature to compare two statistical procedures for estimating mass (or size) of quadrupedal dinosaurs and other extraordinarily large animals in extinct lineages. Both methods entail extrapolation from allometric equations fitted to data for a reference group of contemporary animals having a body form similar to that of ...
G. C. Packard +2 more
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Allometric Equations to Estimate Sugarcane Aboveground Biomass
Sugar Tech, 2019Sugarcane harvest implies in the movement of very large amounts of biomass and, therefore, demands careful planning of logistics. Accurate pre-harvest estimation of sugarcane field productivity provides useful data to plan harvest, transportation, selling and industrial processing activities.
Eric Xavier de Carvalho +7 more
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