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Why Are Dams a Threat to Wetland Ecosystems?

Dams hinder the natural processes of rivers and wetlands from properly supporting ecosystems, such as disrupting sediment replenishment for lowland habitats. They cause flooding behind the structure, making wetlands inhospitable to many organisms and causing habitat and biodiversity loss.

Why Are Dams a Threat to Wetland Ecosystems?

Dams are an important infrastructure and source of energy for many societies, but they can be a serious threat to wetland ecosystems. Dams have been used for centuries to store water and generate renewable energy, but they also disrupt the natural landscape and threaten many species of plants and animals living in wetland ecosystems.

The most obvious way in which a dam poses a threat to wetland ecosystems is by obstructing the flow of water. By blocking access to essential nutrients and habitat, dams interfere with migration patterns and species reproduction. For example, a dam may prevent the spawning of fish upstream and obstruct the migration of fish downstream. The sedimentation of rivers caused by dams also reduces the depth of rivers, making them unsuitable for swimming or spawning by certain aquatic species. All of this has a tremendous impact on fish populations and the wetland ecosystems ine which they thrive.

In addition to blocking rivers, flooding can also be a side effect of dam building which puts tremendous pressure on the wetland habitat. Dam construction by flooding wetlands destroys the marshy environment and displaces the animals and plants. This is a major problem since some plants and animals in wetlands can only survive in narrow ranges of water levels.

The warming of rivers

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