Threatened, Endangered, and Proposed (TEP) Plant Profile
Scirpus ancistrochaetus, northeastern bulrush
Visit the U.S. Fish & Wildlife Service Species Profile link below for links to listing and other USFWS documents.
- Listed Endangered 1991
- Recovery Plan 1993 (PDF, 8.9 MB)
- Habitat destruction or degradation through wetland filling, draining, and dredging for development, agriculture, and recreation
- Drawdown of the water table by residential developments and industrial activities
- Land use practices that disrupt or alter the flow of surface water into wetlands in which they occur
- Timber harvesting effects: increased silt load entering the ponds, invasion of exotic plants because of soil disturbance and increased light availability
- Agricultural effects: eutrophication induced by agricultural runoff (fertilizers), herbicides
- Habitat damage from all-terrain vehicles; most northeastern bulrush sites dry out partially during droughts, allowing vehicular access to the habitat (U.S. Fish and Wildlife Service)
- Because most northeastern bulrush occurrences are very small and isolated, they are particularly vulnerable to loss by stochastic events, such as tree-falls, floods, severe droughts, and insect or disease attack.
- Other natural threats include fire, succession, beaver, and long-term disruption of natural water level fluctuations
- Another threat inherent in small, isolated populations is inbreeding, with subsequent loss of genetic diversity