New York Natural Heritage Program
Riverside Ice Meadow
Riverside ice meadow at South of the Glen. Gregory J. Edinger
System: Terrestrial
SubSystem: Open Uplands

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: G2G3
A Global Rarity Rank of G2G3 means: Imperiled or Vulnerable globally - At high or moderate risk of extinction due to rarity or other factors; typically 80 or fewer populations or locations in the world, few individuals, restricted range, few remaining acres (or miles of stream), and/or recent and widespread declines. More information is needed to assign a single conservation status.


Did you know?
Riverside ice meadows occur along rivers where floating pieces of ice are pushed up into the shore during the winter, forming an ice pack that remains into spring. The ice scours the meadow and often removes woody species. This natural disturbance keeps woody species from taking over the area and promotes the growth of herbaceous plants. In spring the ice melts and creates a cool microclimate, shortening the growing season. The ice pack also deposits organic matter that has accumulated in the ice during the winter.

State Ranking Justification [-]
There are an estimated 10 to 20 occurrences statewide. Few documented occurrences have good viability and few are protected on public land or private conservation land. This community is limited to the upper reaches of large rivers in the mountainous areas of upstate New York, and there are only a few high quality examples. The current trend of this community is probably stable for occurrences on public land or private conservation land, or declining slightly elsewhere due to moderate threats that include shoreline development (especially roads and bridges), trampling by visitors, and invasive species.

Short-term Trends [-]

Long-term Trends [-]