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Scaling in sensitivity analysis

Ecology

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Abstract

Population matrix models allow sets of demographic parameters to be summarized by a single value 8, the finite rate of population increase. The consequences of change in individual demographic parameters are naturally measured by the corresponding changes in 8; sensitivity analyses compare demographic parameters on the basis of these changes. These comparisons are complicated by issues of scale. Elasticity analysis attempts to deal with issues of scale by comparing the effects of proportional changes in demographic parameters, but leads to inconsistencies in evaluating demographic rates. We discuss this and other problems of scaling in sensitivity analysis, and suggest a simple criterion for choosing appropriate scales. We apply our suggestions to data for the killer whale, Orcinus orca.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Scaling in sensitivity analysis
Series title:
Ecology
Volume
83
Issue:
12
Year Published:
2002
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
3299-3305
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Ecology
First page:
3299
Last page:
3305