New York Natural Heritage Program
Sea Level Fen
Sea level fen Stephen M. Young
System: Palustrine
SubSystem: Open Peatlands

State Protection: Not Listed
Federal Protection: Not Listed

State Rarity Rank: S1
A State Rarity Rank of S1 means: Typically 5 or fewer occurrences, very few remaining individuals, acres, or miles of stream, or some factor of its biology makes it especially vulnerable in New York State.

Global Rarity Rank: G1G2
A Global Rarity Rank of G1G2 means: Critically Imperiled or Imperiled globally - At very high or high risk of extinction due to rarity or other factors; typically 20 or fewer populations or locations in the world, very few individuals, very restricted range, few remaining acres (or miles of stream), and/or steep declines. More information is needed to assign a single conservation status.


Did you know?
Did you know that freshwater peatlands can develop right next to a salt marsh? It can, but this type of natural community is very rare. It occupies a unique habitat where there are areas of freshwater seepage adjacent to salt marshes. Possibly, there may only be around 15 sites from Virginia to Massachusetts where this natural community occurs. Also, each of these sites only occupies a few acres at best.

State Ranking Justification [-]
There are very few occurrences of sea level fens in New York. They are all small in size (acreage) and the trend is toward a decrease in size. Most are threatened in a vulnerable, densely-populated landscape, however, some sites are located in more protected, conservation areas.

Short-term Trends [-]

Long-term Trends [-]