Conversely, if a surface area based property scales to mass to the 0.8 power, the values are higher than predicted by isometry and the organism is said to show " positive allometry ".
32.
Studies of ontogenetic allometry often use lizards or snakes as model organisms both because they lack parental care after birth or hatching and because they exhibit a large range of body sizes between the juvenile and adult stage.
33.
Bogin said that this allometry of human growth allows children to have a " superficially infantile " appearance ( large skull, small face, small body and sexual underdevelopment ) longer than in other " mammalian species ".
34.
In these courses he also partially developed the concepts of dynamical similarity and allometry, applied to the aforementioned syndrome, understanding this as a result of a change of scale in the nervous excitability with respect to the normal case.
35.
He continued to develop the concepts of similarity and allometry on the basis of the biological principles of development and growth, applying them to his research of brain dynamics and extending this formalization to the auditory system and the language.
36.
However, recent studies using reptile representatives encompassing all the size ranges leatherbacks pass through during ontogeny discovered the resting metabolic rate of a large " D . coriacea " is not significantly different from predicted results based on allometry.
37.
It's not the ratio of brain size to body size, but rather the ratio between actual brain size, and that predicted by some assumptions of allometry . talk ) 13 : 31, 22 April 2015 ( UTC)
38.
However, a 2010 study of allometry in " Dimetrodon " found a different relationship between its sail and body mass : the actual scaling exponent of the sail was much larger than the exponent expected in an animal adapted to heat dissipation.
39.
If, after statistical analyses, for example, a volume-based property was found to scale to mass to the 0.9 power, then this would be called " negative allometry ", as the values are smaller than predicted by isometry.
40.
The characteristic should be more exaggerated in one of the sexes; it must be used to indicate dominance; have no direct survival benefits; cost the organism in terms of survival or other factors ( e . g ., energetics ); positive allometry should be observed.
