Evaluation of the so-called skeleton sum method, employed in investigations on growth allometry in birds

Autor: Milan Klíma
Rok vydání: 1965
Předmět:
Zdroj: Zeitschrift f�r Morphologie und �kologie der Tiere. 55:250-258
ISSN: 1432-234X
0720-213X
Popis: A comparison of growth of certain parts of a skeleton with the skeleton sum and with the thoracic vertebrae indicates that the results are much the same in both cases. While the growth of both these values is not quite uniform mutually, both of them may notwithstanding be considered as the most representative expressions of the general growth character of the skeleton. For this reason, they may be used as comparative criteria. Especially, the use of the skeleton sum may be recommended for the following reasons: (1) The selected parts of the skeleton, making up the skeleton sum, can be measured exactly, which is not invariably the case with the thoracic vertebrae. (2) The measurements obtained are rather hight values and thence the possible errors in measurements cannot much influence the final result and the variation of the values is not as wide as in using the thoracic vertebrae. (3) Even if the growth of the individual parts of the skeleton sum does not follow an identical course, the differences are balanced in the total sum which thus represents the unit while the thoracic vertebrae represent only a small part of skeleton. However, in applying the method of skeleton sum it must be borne in mind that this is a relative criterion and all results obtained must be evaluated according to that.
Databáze: OpenAIRE
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