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单词 allometry
释义
allometry

Statistics
  • The study of the interdependence of size and shape in living organisms.


Geology and Earth Sciences
  • Differential rate of growth such that the size of one part (or more) of the body changes in proportion to another part, or to the whole body, but at a constant exponential rate. For example, the antlers of the extinct Irish elk (Megaloceros giganteus), the largest of all deer, grew 2.5 times faster than the rest of its body to reach an adult span of up to 3.5 m in the largest individuals. Allometry may in other cases be negative, leading to comparatively smaller parts.


Geography
  • The study of relative rates of change of two variables of a system. This term is specifically used to designate such changing proportions correlated with changes in absolute magnitude of a system or of specific parts of interest; that is, scale-related distortion. In the study of landforms, or the processes acting upon them, the power function Y = a Xb is useful for correlating changes in variables. Allometry is very clearly explained by Church and Mark (1980) PPG 4, 342.

    See Bull (2003) GSA Bull. on allometric change of landforms, Hood (2002) Restoration Ecol. 10, 2 on landscape allometry and the restoration of tidal channels, and Evans and McClean (1995) Zeitschrift. Suppl.-Band, 101 on cirque scale and allometry.


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