New York Natural Heritage Program
Rocky Headwater Stream
Rocky headwater stream at Salmon River David M. Hunt
System: Riverine
SubSystem: Natural Streams

State Protection: Not Listed
Federal Protection: Not Listed

State Rarity Rank: S4
A State Rarity Rank of S4 means: Apparently secure in New York State.

Global Rarity Rank: G4
A Global Rarity Rank of G4 means: Apparently secure globally, though it may be quite rare in parts of its range, especially at the periphery.


Did you know?
Rocky headwater streams have a characteristic seasonal fluctuation in flow volume. In the spring, when the snow melts and rains are heavy, rocky headwater streams can become torrents. However, by mid- to late summer, the streams can become so slow that they are stagnant.

State Ranking Justification [-]
There are several thousand occurrences statewide. Many documented occurrences have good viability and are protected on public land or private conservation land. This community has statewide distribution, and includes several high quality examples. The current trend of this community is probably stable for occurrences on public land, or declining slightly elsewhere due to moderate threats related to development pressure or alteration to the natural hydrology.

Short-term Trends [-]

Long-term Trends [-]