The planners of the Montauk Point Lighthouse were well aware of erosion. The government agents noted that "Montauk Point is washed by the sea in storms" and "wastes very fast." They erected the lighthouse at the extreme west end of the Turtle Hill plateau at a distance of approximately 300 feet from the bluff. Over the past 200 years approximately 200 feet of Montauk Point has been washed into the Atlantic Ocean. Today the lighthouse stands less than 100 feet from the edge of the maritime bluff.
There are an estimated 5 to 30 extant occurrences statewide. One currently documented occurrence has good viability and is located on public conservation land. The community is currently known from the Coastal Lowlands ecozone of eastern Long Island in Suffolk County. The overall trend for the community is suspected to be slightly declining due to recreational overuse and coastal development.
Although the number of maritime bluffs may have increased slightly when formerly long, continuous examples were fragmented by development, their acreage in New York has probably declined in recent decades as a result of coastal development and recreational overuse.
Although the number of maritime bluffs in New York may have increased slightly from historical numbers when formerly long, continuous examples were fragmented by development into numerous large and small stretches, their aerial extent and viability are suspected to have declined substantially over the long-term. These declines are likely correlated with coastal development and associated changes in connectivity, tidal hydrology, and natural processes.
The primary threat to maritime bluffs in New York is likely to be recreational overuse; specifically, climbing and sliding on the cliffs increases erosion. Invasive exotic species that appear on the bluffs include rugosa rose (Rosa rugosa) and Oriental bittersweet (Celastrus scandens). In some cases, exotics are being planted to stabilize the dunes. Additional threats include fragmentation of bluffs by development; stairways for beach access; and barriers to connectivity between the open ocean, the beach, and the bluffs. Broad threats to maritime beach dynamics also threaten maritime bluffs. Hydrologic alterations to tidal dynamics, shoreline fragmentation and hardening, altered sediment budgets, and management practices like beach replenishment affect the natural cycles of sand deposition and attrition and subsequently change the rate of erosion of the bluffs.
Maintain the dominant ecological processes responsible for keeping this dynamic community in disclimax. Natural disturbances, including wave erosion and strong offshore winds, should be expected to lead to slumping, cliff retreat, and sea cave formation. Prevent recreational overuse and encourage the public to stay on marked trails. In particular, continue to restrict sliding and climbing on the face of the bluffs using signage and fencing. In places where trails run directly along the top edge of maritime bluffs, those trails should be re-routed away from the edge and split rail fences could be used to direct visitors to designated overlooks. Because the face of the bluffs can be expected to migrate inland, it is important to protect adequate open space to accommodate such change. Avoid planting invasive exotic species to stabilize the bluffs; if stabilization of this inherently unstable community is necessary, select native plants, perhaps American beachgrass (Ammophila breviligulata). Prevent the spread of invasive exotic species into the bluffs through appropriate direct management and by minimizing potential dispersal corridors, such as beach access trails and stairways.
This community is best protected as part of a large maritime system, encompassing grasslands, shrublands, bluffs, heathland, forests, barrens, and dunes. Development should avoid fragmentation of such systems to allow for nutrient flow, seed dispersal, and seasonal animal migrations within them. Bisecting trails, roads, and developments can also allow exotic plant and animal species to invade and potentially increase 'edge species' (such as raccoons, skunks, and foxes). Connectivity to brackish and freshwater tidal communities and to shallow offshore communities should also be maintained as much as possible to maintain "maritime" conditions, which imply deposition of salt spray and shearing from offshore winds.
Surveys and documentation of additional occurrences are needed, as are data on rare and characteristic animals.
A study could investigate the effects of sea level rise and changes in oceanic dynamics with global climate change on the dynamic erosive processes of this community.
This community is currently known from the Coastal Lowlands ecozone of eastern Long Island in Suffolk County. It primarily occurs on the eastern end of Long Island, along the south shore, but also appears in discontinuous patches along the north shore. It may extend west into Nassau County.
Maritme bluffs occur along the North Atlantic Coast from Long Island, New York to Maine.
A sparsely vegetated community that occurs on vertical exposures of unconsolidated material, such as small stone, gravel, sand, and clay, that is exposed to maritime forces, such as water, ice, or wind. There are very few woody species present because of the unstable substrate. The most abundant species are usually annual and early successional herbs. These bluffs are adjacent to maritime and marine communities and are actively eroded by oceanic forces.
The maritime bluff is comprised of areas of unvegetated, near vertical morainal sand cliffs, and less steep (about 45 degrees) areas of slumped bluff-face at the base of the bluff that support American beachgrass (Ammophila breviligulata), seaside goldenrod (Soligago sempervirens), and bayberry (Myrica pensylvanica).
Known examples of this community have been found at elevations between 3 feet and 77 feet.
These dramatic bluffs are scenic year round. Visit during the summer and enjoy the beach below.
This New York natural community encompasses all or part of the concept of the following International Vegetation Classification (IVC) natural community associations. These are often described at finer resolution than New York's natural communities. The IVC is developed and maintained by NatureServe.
This New York natural community falls into the following ecological system(s). Ecological systems are often described at a coarser resolution than New York's natural communities and tend to represent clusters of associations found in similar environments. The ecological systems project is developed and maintained by NatureServe.
Ammophila breviligulata ssp. breviligulata
Phragmites australis (old world reed grass, old world phragmites)
Solidago sempervirens (northern seaside goldenrod)
This figure helps visualize the structure and "look" or "feel" of a typical Maritime Bluff. Each bar represents the amount of "coverage" for all the species growing at that height. Because layers overlap (shrubs may grow under trees, for example), the shaded regions can add up to more than 100%.
Edinger, G. J., D. J. Evans, S. Gebauer, T. G. Howard, D. M. Hunt, and A. M. Olivero (editors). 2014. Ecological Communities of New York State. Second Edition. A revised and expanded edition of Carol Reschke’s Ecological Communities of New York State. New York Natural Heritage Program, New York State Department of Environmental Conservation, Albany, NY. https://www.nynhp.org/ecological-communities/
Edinger, Gregory J., D.J. Evans, Shane Gebauer, Timothy G. Howard, David M. Hunt, and Adele M. Olivero (editors). 2002. Ecological Communities of New York State. Second Edition. A revised and expanded edition of Carol Reschke's Ecological Communities of New York State. (Draft for review). New York Natural Heritage Program, New York State Department of Environmental Conservation. Albany, NY. 136 pp.
Larson, D.W., U. Matthes, and P.E. Kelly. 2000. Cliff Ecology: Pattern and Process in Cliff Ecosystems. Cambridge University Press, New York, New York.
New York Natural Heritage Program. 2021. New York Natural Heritage Program Databases. Albany, NY.
Schlesinger, M.D., E.L. White, S.M. Young, G.J. Edinger, K.A. Perkins, N. Schoppmann, and D. Parry. 2016. Biodiversity Inventory of Plum Island, New York. New York Natural Heritage Program, Albany, New York, and SUNY College of Environmental Science and Forestry, Syracuse, NY.
Van Diver, Bradford B. 1985. Roadside Geology of New York. Mountain Press Publishing Company, Missoula, MT.
This guide was authored by: Aissa Feldmann
Information for this guide was last updated on: May 3, 2019
Please cite this page as:
New York Natural Heritage Program. 2021. Online Conservation Guide for Maritime bluff. Available from: https://guides.nynhp.org/maritime-bluff/. Accessed October 16, 2021.