PEATY WETLAND

Description

The Reference State describes the natural biotic communities that may become established on the Wetland - cattail bulrush ecological site when all successional sequences are completed under the natural disturbance regime. The Reference State is self sustaining and resistant to change due to its high resistance to natural disturbances and high resilience following natural disturbances. When natural disturbances occur, the rate of recovery is variable due to disturbance intensity. Prolonged flooding could cause a large plant die-off at any community phase. This community could become at risk where increased disturbance and/or the introduction of the invasive species of common reed occurs. Once this invasive species becomes established, return to the reference state may not be possible.

Reference State: Community phases influenced by fluctuating water levels, natural disturbances, and weather.

Indicators: A dense stand of common cattail, various bulrush species and the native sub-species of common reed dominant visual aspect.

Feedbacks: Extended drought, lower standing water levels and/or other disturbances that reduce plant vigor which may allow invasive species to become established in the community. Properly managed water levels where possible help maintain the native perennial plant community.

At-risk Community Phase: All communities in this state are at risk when native plants are stressed and/or nutrients become available for invasive plants to establish.

Trigger: Introduction and establishment of non-native invasive plants such as the invasive sub-species of common reed.

Submodel

Description

The Current Potential State is similar to the Reference State, except it has established non-native plants.

Submodel