Determinants of avian eggshell porosity

Authors


Abstract

The manner in which the porosity of avian eggshells varies with egg weight is discussed in relation to the number of pores, their cross-sectional area and length. Shell porosity and ways in which this can change to satisfy different environmental demands are discussed on the basis of a simple model which envisages the shell as being composed of columns of calcite.

Ancillary