Edited by: Abdel H. El-Shaarawi and Walter W. Piegorsch



Change-in-ratio (CIR) methods are used to estimate parameters for ecological populations subject to differential removals from population subclasses. Subclasses can be defined according to criteria such as sex, age, or size of individuals. Removals are generally in the form of closely monitored sport or commercial harvests. Estimation is based on observed changes in subclass proportions caused by the removals.

Additional publication details

Publication type Book chapter
Publication Subtype Book Chapter
Title Change-in-ratio
ISBN 9780470057339
DOI 10.1002/9780470057339.vac015m.pub2
Year Published 1992
Language English
Publisher Wiley
Contributing office(s) Alaska Science Center
Description 3 p.
Larger Work Type Book
Larger Work Subtype Monograph
Larger Work Title Encyclopedia of Environmetrics, volume 1
First page 322
Last page 324
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