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Gamma Theory

Modern Wild Faunal Resource Management

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Faunal Life Group Management

A life group is a species or any taxon but it is usually a sub-group of a population requiring significantly different management efforts.

Examples:

turkey poult vs. adult
buck vs. deer
male cardinals vs others
singing quail vs others
insect instars

There are greater differences between many life groups than between genera.

Careful:

difficult concept
in opposition to "assemblages" or ecological guilds
increased refinement rather than encouraging "grouping" of animals
emphasis on managerial options available

Most actions effect many species or life groups:

Projects Life Groups Effect on Groups

1 2 3 Sum

1 1 0 1 2

2 0 0 1 1

3 1 0 1 2

Projects	Life Groups	Effect on Groups
	1	2	3	Sum
1	1	0	1	2
2	0	0	1	1
3	1	0	1	2

The effect of Project #3 is on Life Group #3 but also on Group #1.

Using relative numbers can allow a summation across the row to pick the best action. Here 1 and 3 are tied for "best" since both have a score of 2. The method is most appropriate for rough 50-life-group work; with many groups, ties will be rare.

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This Web site is maintained by R. H. Giles, Jr.
Last revision January 17, 2000.