Biology Reference
In-Depth Information
road
trail
stream
agricultural
town
recent burn
Fig. 2.5
A worked example of how the three types of monitoring plans can be applied to a man-
agement unit composed of common landscape features
If there are no species data available in or near the management unit, then a
generalized approach is required (Fig. 2.2). The landscape features in this hypo-
thetical management unit are associated with typical levels of propagule pressure
and resource availability, which can be used to develop a generalized monitoring
plan. Propagule pressure would be very high in the town and agricultural area, high
along the roads, moderate along the trail and stream, and low elsewhere (Fig. 2.5).
Resource availability would be very high in the town, high in the agricultural area,
recent fire, and roadsides, moderate along the trails, and low elsewhere. The gener-
alized monitoring priorities in this case would be as follows:
very high priority
in
the town and agricultural area;
high priority
along the roads and in the burned area,
especially where to two meet;
moderate priority
along the trail and stream; and
low
priority
elsewhere. Thus, the areas of very high priority would comprise about 10%
of the total area within the management unit, and if the high priority areas were
added, the monitoring area would be about 50% of the total area.
If a species list is available, then a prioritized monitoring plan can be built upon
the generalized plan (Fig. 2.2). The specifics of this plan will depend on the types
of species that rank as highest priorities. For example, assuming that the species
pool is dominated by highly invasive riparian plants, then monitoring efforts should
