New York Natural Heritage Program
Silver Maple-Ash Swamp
Silver maple-ash swamp Stephen M. Young
System: Palustrine
SubSystem: Forested Mineral Soil Wetlands

State Protection: Not Listed
Federal Protection: Not Listed

State Rarity Rank: S3
A State Rarity Rank of S3 means: Typically 21 to 100 occurrences, limited acreage, or miles of stream 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?
Silver maple is one of the fastest growing species in the eastern forests. For this reason silver maple is considered to be one of the few woody species that has a great potential to produce biofuel. Biofuels are made from biomass resources and are used to fuel vehicles, engines, and fuel cells for electricity generation as an alternative to oil and gas.

State Ranking Justification [-]
There are about a thousand occurrences statewide. Some of the documented occurrences have good viability and many are protected on public land or private conservation land. This community is limited in distribution to the central and western parts of the state, and includes a few large, 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 that include alteration of the natural hydrology and invasive species.

Short-term Trends [-]

Long-term Trends [-]