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Assessment
How do beaver dams influence aquatic plant diversity in river systems?
They increase aquatic plant diversity by creating new wetland habitats.
They decrease aquatic plant diversity by blocking water flow.
They have no effect on aquatic plant diversity.
They only affect terrestrial plants, not aquatic ones.
What type of vegetation can often thrive in the areas behind beaver dams?
Submerged aquatic plants such as eelgrass.
Only algae species.
Terrestrial trees and shrubs only.
Emergent plants like cattails and bulrushes.
What impact do beaver dams have on sedimentation in river systems?
They decrease sedimentation by speeding up water flow.
They have no effect on sediment levels.
They increase sedimentation by slowing water flow and allowing particles to settle.
They only affect the sedimentation of larger debris.
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