Creator

Created

Contributor

Modified

egg shell index
type: Concept
Contributor: dgwr
Created: 2012-01-04T16:00:53Z
creator: dgwr
Modified: 2019-05-09T16:00:18.197+00:00
alternative label: SI
broader: determinands
definition: An estimate of egg shell thickness where Egg Shell Index is equal to the mass of the egg shell (mg) divided by the product of the length and breadth (mm) of the eg shell, as described by Ratcliffe, D. A. (1970). Changes attributable to pesticides in egg breakage frequency and eggshell thickness in some British birds. J. Appl. Ecol. 7: 67-115.

determinands
type: Concept
narrower: egg shell index