Standing water:
Vernal
pools are ephemeral or short-lived wetland that usually
fills with water in the rainy seasons (vernal means spring) and
dries up in the summer. This wet-dry cycle prevents fish from surviving
in them and as a result allows for a great, temporary habitat
for aquatic invertebrates and amphibians.
Bogs
are a type of wetland.
Bogs have shallow standing water with plentiful Sphagnum mosses.
The water in bogs is acidic and lacking in nutrients. Peat is formed
at the bottom of bogs from decaying vegetative matter.
Another
type of wetland is a marsh. Marshes are deeper
and have more open water than bogs. Emergent vegetation like rushes,
reeds and sedges line the edges and are nutrient rich.
Swamps are similar to marshes although they are
deeper and have more open water. Vegetation differs, too. Swamps
have more trees and shrubs than marshes.
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