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Robert
W. Freckmann Herbarium
University of Wisconsin - Stevens Point
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Wetland Indicator: For North Central Region (3)
The wetland indicator represents the estimated probability (likelihood)
of a species occurring in wetlands versus non-wetlands in the region. The
probability percentages applied to each indicator category were provided
to enhance an understanding of this methodology. The regional indicator
assignments are not based on the results of a statistical analysis of the
occurrence of these species in wetlands. The indicator assignments are
the best approximation of wetland affinity for these species based upon
a synthesis of submitted review comments, published botanical manuals and
literature, and field experience. If a Regional Panel was not able to reach
a unanimous decision on a species, NA (no agreement) was recorded.
An NI (no indicator) was recorded for those species for which insufficient
information was available to determine an indicator status or that were
not considered by the Regional Panel. An asterisk (*) following a regional
indicator identifies tentative assignments based on limited information
or conflicting review. A positive (+) or negative (-) sign was used with
the Facultative indicator categories to more specifically define the regional
frequency of occurrence in wetlands. The positive sign indicates a frequency
toward the higher end of the category (more frequently found in wetlands).
A negative sign indicates a frequency toward the lower end of the category
(less frequently found in wetlands). For more information see The
US Fish and Wildlife Service
Indicator Categories
Obligate Wetland (OBL). Occur almost always (estimated probability
>99%) under natural conditions in wetlands.
Facultative Wetland (FACW). Usually occur in wetlands (estimated
probability 67%-99%), but occasionally found in non-wetlands.
Facultative (FAC). Equally likely to occur in wetlands or non-wetlands
(estimated probability 34%-66%).
Facultative Upland (FACU). Usually occur in non-wetlands (estimated
probability 67%-99%), but occasionally found in wetlands (estimated probability
1%-33%).
Obligate Upland (UPL). Occur in wetlands in another region, but
occur almost always (estimated probability >99%) under natural conditions
in non-wetlands in the region specified.