Results 201 to 210 of about 1,157,735 (237)

Allometric Growth and the Beverton and Holt Yield Equation

Transactions of the American Fisheries Society, 1964
Abstract In the development of their theory of fishing, Beverton and Holt assume that growth is isometric and thus express the body weight of a fish as directly proportional to the cube of its length. The effect on their theory of replacing this assumption with an allometric growth equation estimated from weight-length data is examined in this paper ...
G. J. Paulik, Lawrence E. Gales
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Allometric equations for predicting body mass of dinosaurs

Journal of Zoology, 2009
AbstractWe 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, T. J. Boardman, G. F. Birchard   +2 more
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Allometric Equations to Estimate Sugarcane Aboveground Biomass

Sugar Tech, 2019
Sugarcane 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, Rômulo Simões Cezar Menezes, Everardo Valadares de Sá Barreto Sampaio, Djalma Elzébio Simões Neto, José Nildo Tabosa, Luiz Rodrigues de Oliveira, Aluizio Low Simões, Aldo Torres Sales   +7 more
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Calculation and Miscalculation of the Allometric Equation Reconsidered

BioScience, 1969
In the December 1968 issue of BioScience, an article appeared entitled "Calculation and Miscalculation of the Allometric Equation as a Model in Biological Data" by Jerrold H. Zar. This article, while dealing with a very basic and important problem of data analysis-the question of whether or not to use data transformations in fitting models to ...
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Estimation of parameters of allometric equations.

Bollettino della Societa italiana di biologia sperimentale, 1993
Accurate parameter estimation of allometric equations is a question of considerable interest. Various techniques that address this problem exist. In this paper it is assumed that the measured values are normally distributed and a maximum likelihood estimation approach is used.
M, Valente, P, Murino, T, De Leo, A, Amato   +3 more
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Correcting for Bias in Log‐Transformed Allometric Equations

Ecology, 1983
mals: their productivity and population dynamics, IBP. Volume 5. Cambridge University Press, London, England. Mahmud, F. S. 1980. Alary polymorphism in the small brown planthopper Laodelphax striatellus (Homoptera: Delphacidae). Entomologia Experimentalis et Applicata 28: 47-53. McCoy, E. D., and J. R. Rey. 1981. Alary polymorphism among the salt marsh
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On the hidden physical dimensions of the allometric equation.

Archivos de biologia y medicina experimentales, 1993
The aim of the present study was to submit Huxley's allometric equation (Y = aMb) to a dimensional analysis; in this equation Y is any biological variable, a is the mass-coefficient, M represents body mass, and b the mass-exponent. The dimensions of each of its components is thoroughly analyzed by means of the MLT-system of physics, as is the ...
E, Morgado, B, Günther
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Allometric equations for four valuable tropical tree species

Forest Ecology and Management, 2006
Four tree species were harvested periodically over a 13-year period from plantations in the humid lowlands of Costa Rica: Cedrela odorata, Cordia alliodora, Hyeronima alchorneoides, and Euterpe oleracea. The soil was a well-drained, volcanic alluvium, and high fertility coupled with 4 m of annual rainfall and high temperatures led to rapid growth rates;
Thomas G. Cole, John J. Ewel
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Some theoretical consequences of the allometric growth equations

The Bulletin of Mathematical Biophysics, 1955
The rate of growth of an organism may be described as a function of both its mass and of the time. In particular, if the rate of growth is described as a function of mass alone, one derives the so-called principle of “equifinality”, according to which the final mass achieved is independent of any interruption of the growth process.
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Allometric equations for biomass assessment of subalpine dwarf shrubs

Alpine Botany, 2011
Shrubs are an important component of mountain ecosystems in terms of productivity and diversity. The estimate of shrub biomass via allometric equations represents a non-destructive alternative to obtain quantitative data. We propose allometric equations to estimate aboveground biomass from easily acquirable descriptive parameters of plant height and ...
Tasneem M. Elzein, Olivier Blarquez, Olivier Gauthier, Christopher Carcaillet   +3 more
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