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Plant Surveys
White Water Associates provides an extensive range of
plant survey services. Our staff is trained and experienced
in plant identification, plant systematics, plant ecology, and
sampling techniques. Our botany skills include aquatic,
wetland, and terrestrial plants. We conduct surveys in a
variety of habitats including streams, lakes, ponds,
wetlands, boreal forests, northern deciduous forests,
upland and lowland forests, prairies, and many others.
Long term sustainability of lakes is best ensured by a
healthy native plant community. White Water Associates’
lake studies often include aquatic plant surveys. Such
surveys are typically conducted by point-intercept methods
and/or meander transects. In point-intercept surveys, a
map is created with grids marking discrete, equidistant
sampling points. The team navigates to each point using
GPS and collects plants with a specialized rake. At each
point, plant species, relative abundance, depth, and
substrate are determined. This allows derivation of several
ecological metrics such as Simpson’s Index, Floristic
Quality Index, and depth to rooted vegetation.
Ecologically informed meander surveys are typically used
for rare plants or new occurrences of aquatic invasive
species (AIS). In these searches, field biologists use their
knowledge of species and habitats to search most likely
areas.
Methods applied to terrestrial plant surveys are chosen
and designed to address specific goals of the survey or to
answer explicit research questions. Various techniques
such as transects, plots, quadrats, and meander surveys can
be employed. For rare plant surveys, an ecologically
informed meander search is often an appropriate
approach. This method takes advantage of the field
biologist’s knowledge of habitat to search in the most likely
areas for rare plants. New colonies of invasive species may
also be best detected by this method.