Tag Archives: sand

Saving the Sand: Great Lakes Dunes Stewards

It’s a summer day on the eastern shores of Lake Ontario.  As a visitor walks down the beach they observe the sparkling of the water, the crashing of the waves, and the laughter of people as they enjoy the beach.  Parallel to the water runs a series of fencing and signs that mark the perimeter of the remarkable dune ecosystem that lies just behind.  This seventeen mile stretch of Lake Ontario is home to the most expansive dune ecosystem in the state of New York.  The dunes are large sand hills that are held together by extensive plant root systems.  They not only serve as habitat for a variety of species, but as a vital buffer between the power of Lake Ontario and the intricate system of ponds, marshes, and waterways that reside on the other side of the dunes.

The Dune Steward Program was established in the mid 1990’s to help protect this fragile dune system by maintaining the fencing and signs, removing litter, working with wildlife biologists and technicians on a variety of projects, and most importantly interacting and educating the public on the importance of the dunes.  The stewards patrol the 17 mile stretch of coastline that includes El Dorado Nature Preserve, Black Pond Wildlife Management Area (WMA), Lakeview WMA, Sandy Pond Beach, Southwick Beach State Park, and Deer Creek WMA.  Every summer the Department of Environmental  Conservation (DEC) in conjunction with New York State Office of Parks, Recreation and Historic Preservation, The Nature Conservancy, and The Student Conservation Association (SCA), places three interns from across the country to work as dune stewards.  Dune stewards are current students or recent graduates who have a background in environmental conservation.

edited black pond
Beach and dunes at Black Pond WMA. Photo by Jennifer Brady.

Along with the duties described above, this program allows the stewards the opportunity to be involved in other conservation efforts.  Some of these projects include placing identification bands on birds, identifying and monitoring invasive and endangered species, bird surveys, educational events, and a variety of environmental training opportunities. This year the stewards were able to assist in the successful protection of the piping plover, a federally threatened shorebird species.  This small bird lays its eggs in shallow scrapes on grassless beaches or dredged soil areas.  This summer was the first time in over 30 years that the piping plover has nested on Lake Ontario.  Stewards talked to visitors about the plovers and what they can do to assist in the protection of the bird and its chicks. They advised that visitors maintain a respectful distance and keep dogs on a leash when walking through areas where the plovers were nesting.

Piping Plover
An adult piping plover and its day old chick. Photo by Elizabeth Truskowski, DEC.

One of the most important aspects of this program was public interaction and education.  Each day visitors see the work that the stewards are doing and often approach the stewards to ask questions, express concerns, or even just to thank them for the work they are doing.  “It is extremely rewarding to be able to share what we know about the dune environment and its inhabitants to hopefully be able to protect this area for the considerable future,” said Jennifer Brady, DEC dune steward.

Post by Jennifer Brady, DEC Dune Steward, Student Conservation Association (SCA).

2018 Update

For the first time in decades, a pair of piping plover successfully nested at Sandy Island Beach State Park.

PipingPlover1a
2018 piping plover chick on the beach at Sandy Island Beach State Park.

Sources:

http://www.seagrant.sunysb.edu/glhabitat/dune/dune.html

http://www.fws.gov/midwest/endangered/pipingplover/

https://usfwsnortheast.wordpress.com/2018/08/07/the-real-plovers-of-new-york/

Sand: The Beaches’ Hidden Treasures

Fourth of July is nearly upon us and it is time to hit the beach!  And beaches mean sand – sand to build sand castles, sand that tickles your toes during beach strolls, and sand for beach volleyball and bocce.

But what is beach sand?  According to http://www.merriam-webster.com, sand is “a loose granular material that results from the disintegration of rocks, consists of particles smaller than gravel but coarser than silt.”  These small particles are less than 1/10th of an inch in diameter.  The mineral makeup of individual sand particles depends on local and regional rocks, which are eroded by ice and rain, then carried to the ocean by rivers where they are deposited on gently sloping beaches. The size of individual sand particles is dependent on the slope of the beach, both above and below waterline. The color of beach sand is influenced by nearby landscapes and ocean bottom.

In New York, many beaches have a variety of minerals including quartz, white or clear particles; feldspar, buff-colored particles; and magnetite, black particles.  On beaches around the world you will find lava (black beaches), coral (pink beaches), garnet (purple beaches), olivine crystals (green beaches) and more. Some beaches have unique sand such as the orange Kerala coast beach sand in India.

New York State Parks have over 65 beaches on lakes, ponds, rivers, bays, and the Atlantic Ocean.  Let’s take a closer look at the sands on a few of those beaches …

Along Lake Erie

Evangola Beach Sand

The sand on the beach at Evangola State Park in southern Erie County is principally quartz, feldspar, magnetite, with smaller amounts of garnet, calcite, ilmenite, and hornblende.  All of the particles are approximately the same size.

Along Lake Ontario

Hamlin_Beach Sand

Located northwest of Rochester, Hamlin Beach State Park beach sands are mostly quartz, hypersthene (brown and gray), and augite (greenish).

On Long Island

Jones_Beach Sand A

Jones Beach State Park has 6-1/2 miles of Atlantic Ocean shoreline; different sections of beach have slightly different sands.  Some parts of the beach have sand that is mostly comprised of quartz with a little feldspar and tiny shell fragments.  Note that the clear quartz particles have different sizes.

Jones_Beach Sand B

 

 

 

 

 

 

 

 

Other sections of beach at Jones Beach State Park have quartz, garnet, and magnetite sand with a few tiny shell fragments. All of the particles are about the same size.

Robert_Moses Sand

 

 

 

 

 

 

 

 

The beach at Robert Moses State Park, also on the Atlantic Ocean side, is mixture of quartz, garnet, magnetite, and shells. The shell in the photo is about 1/3” long; larger glass piece is about 1/6” long.

Napeague_Beach Sand

The beaches on the north side of Napeague State Park and Hither Hills State Park are along Napeague Bay. Here the sands contain magnetite and garnet which give the sand a purplish hue.

Bring your magnifying glass the next time you head to a NYS Parks beach.  You might be surprised at what you see when you take an up-close look at the sand.

Thanks for Anne McIntyre, Dave McQuay, and Megan Philips for their help with collecting sand samples for this article.

Post and sand photos by Susan Carver, OPRHP.

Learn more at:

Coastal Care: http://coastalcare.org/2010/10/dream-in-color-on-the-worlds-rainbow-beaches/

International Sand Collector’s Society: http://www.sandcollectors.org/SANDMAN/The_Hobby_of_x.html

Sand Atlas: http://www.sandatlas.org/sand-types/

Pilkey, Orrin H., William J Neal, Joseph T. Kelley, & J. Andrew G. Cooper; The World’s Beaches : A Global Guide to the Science of the Shoreline; University of California Press, Berkeley, 2011.