7923

• UCREFRP Catalog Number: 7923
• Author: Carter, J. G. and V. A. Lamarra.
• Title: An Ecosystem Approach To Environmental Management, Chapter 17.
• USFW Year: n.d.
• USFW - Doc Type: 261-287
• Copyright Material: YES

LEVEL I

MEASURE PARAMETER
AND CALCULATE
APPROPRIATE
RELATIONSHIPS

LEVEL II

LEVEL III

CHANGE DUE TO MAN-
INDUCED IMPACT -
BEGIN INVESTIGATIONS
OF SOURCe

NOTIFY APPRO-
PRIATE
AGENCIES OR
COMPANIES

INITIATE APPROPRIATE
YES --f COR!',cen VE ACTI ON

Figure 12. Flow model of environmental
analysis and contingency planning.

light vs. primary production among others. These data
are used in MONITOR. Data which fall outside the
allowable range (acceptable confidence limits) or cause a
significant change in the particular ecosystem
relationship of intere~~ are flagged. For those
parameters satisfying the model requirements of normality,
no further action would be taken. If a parameter did not
satisfy the criteria for normality, the next step in
contingency planning should occur.

Level II. For relationships deviating from the allowable
range as defined by the model, the next level of analysis
begins. In this case, subsets of the structural and
functional characteristics of ecosystem
(biological/physical) parameters are considered. These
are compared with the baseline data base and the
ecological literature. If the deviation can be explained
by a change in a driving variable, a co-relationship with
other ecosystem parameters, or from the literature, the
model can be refined to include this relationship. If the
deviation cannot be explained in this manner, the last
step of analysis occurs.

Level III: Having failed to explain the deviation by

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