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Calcareous Pavement Barrens |
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System: Terrestrial
SubSystem: Barrens And Woodlands 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: G3
A Global Rarity Rank of G3 means: Either rare and local throughout its range (21 to 100 occurrences), or found locally (even abundantly at some of its locations) in a restricted range (e.g. a physiographic region), or vulnerable to extinction throughout its range because of other factors. Did you know? These calcareous pavement landforms originated from sedimentary deposits in a vast, shallow inland sea that covered much of New York approximately 450 million years ago. Many of these deposits are rich in fossils (Isachsen et. al 2000). Cracks in the pavement bedrock are called "grykes." They are formed when rain water dissolves the limestone producing solution fissures that often collect leaves and debris, so take care when walking in a calcareous pavent barrens and avoid stepping into the grykes. |
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| State Ranking Justification | [-] |
There are probably much less than 50 occurrences statewide. A few documented occurrences have good viability and several are protected on public land or private conservation land. This community is limited to the calcareous regions of the state, and there are only a few high quality examples. The current trend of this community is probably stable for occurrences on public land and private conservation land, or declining slightly elsewhere due to moderate threats that include conversion to pastureland, development, trampling by visitors, ATVs, and invasive species.
| Short-term Trends | [-] |
The number and acreage of calcareous pavement barrens in New York have probably declined slightly in recent decades as a result of development, conversion to pastureland, recreational ATVs, and invasive species.
| Long-term Trends | [-] |
The number and acreage of calcareous pavement barrens in New York have probably declined moderately to substantially from historical numbers likely correlated with past conversion to pastureland.
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Home | Advanced Search | About Us Animal Guides | Plant Guides | Community Guides © 2004-2012 New York Natural Heritage Program, a partnership between the New York State Department of Environmental Conservation and the State University of New York College of Environmental Science and Forestry Please cite this page as:
New York Natural Heritage Program. 2013. Online Conservation Guide for Calcareous Pavement Barrens. Available from: http://acris.nynhp.org/guide.php?id=9961. Accessed May 24th, 2013. 
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