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Posts Tagged ‘horseshoe crabs’

 

 

 

Wildwire-May22-28

 

As always we have a ton of FREE things to enjoy outdoors in New York City that put you in direct contact with nature. We hope you get out there, have fun, learn, and love your wild, wild city!

 

 

 

 

THURSDAY, MAY 22

 

Horticulture, Brooklyn

 

Each Thursday at 10AM the “VIPP Crew” tackles crucial horticultural and maintenance work throughout Prospect Park. It’s great exercise, you’ll meet a new circle of friends, and you can take quiet satisfaction in creating and preserving beauty for others. The day’s activities wrap up at 2PM.

 

 

 

FRIDAY, MAY 23

 

GARDENING, BRONX

 

Kids and sunflowers alike grow up healthy at the Sherman Avenue Community Garden. This green oasis at 955 Sherman Avenue (between East 163rd and East 164 Streets) has recently been redesigned, so come help inject new life into it on Friday, from 10AM until 2PM. For more information call 718.817.8026

 

HORSESHOE CRAB WALK, STATEN ISLAND
Revolutionary War history and deep, deep prehistory at once? That’s a heck of a two-fer, thanks to our NYC Park Rangers. Witness a ritual that has taken place for millions of years as horseshoes gather on Staten Island’s shores at Conference House Park. Meet at 7PM at the Visitor Center, where Hylan Boulevard and Satteries Street meet.
 

 

 

 

 

 

 

SATURDAY, MAY 24

 

 

BIKE LESSONS, ALL OVER THE PLACE!

 

This is a great weekend to have experts help you teach your child to bike ride. Clinics are being held in several place, so please check the Bike Month calendar directly. And make special note of the “Queens Bites” and “Biking is for Lovers” if you believe that bike entitles you to a few extra, yummy calories!

COMPOSTING WORKSHOP, MANHATTAN

 

The Manhattan Compost Project wants you to know the food scraps are powerfully fertile soil in waiting. Come to the 6B Garden at 1PM and BEHOLD THE POWER OF WORMS!

 

Like all New Yorkers, worms are very concerned about housing. You’ll learn how to care for worms in your own apartment and donate your product to community gardens or lavish it on your own plants. As any gardener can tell you, the best plant growers don’t have green thumbs, they have brown thumbs. No…wait, that came out wrong.

 

At the end of the free two-hour workshop you’ll have the option of buying a subsidized “worm condo” for $10.

 

 

 

 

NATURE WALK, MANHATTAN 

 

“Amble through the Ramble” with the Central Park Conservancy, a place of dense and diverse 38-acre woodland and streams. Learn your trees and a few birds too in this relaxing one-hour walk. No RSVP required – just make your way to the center of the park from 79th Street on either side by 930AM, early bird!

 

 

BIRDING HIKE, STATEN ISLAND

Not so many years ago, if you told your friends that you were going to hike through Fresh Kills, Staten Island, they would have though you were nuts. Actually, some of them still might, and that’s half the fun. The notorious landfill is rapidly transforming into a spectacular public park and preserve (pictured above). Come with NYC Audubon and park staff to see what’s already roosting and soaring, from hawks to songbirds.

This trip is free, but please RSVP. The trip meets at the St. George Ferry Terminal at 10AM and wraps up at noon.

PADDLING, Brooklyn

Venture to Brooklyn’s deep south and enjoy the famous hospitality of Sebago Canoe Club at their annual open house. You’ll get a chance to paddle Jamaica Bay and Paerdegat Basin, munch, and mingle while enjoying the beauty of their recent gardening. The festivities run from 10AM until 5PM.

 

WOODLAND RESTORATION

 

Each Saturday the Weekend Woodlands Volunteers clean, replant, and care for Prospect Park’s superb forest – Brooklyn’s last. Meet at the Picnic House at 10AM and wrap up this fun work at 2PM. Call 718.965.8960 for more information.

 

 

BIRDING, BROOKLYN

 

Get to know the 200 species of the dinosaurs’ closest living relatives living in Prospect Park on the introduction to birdwatching walk every Saturday. Meet the Brooklyn Bird Club guides at the Audubon Center at noon and stroll and learn until 130PM.

 

 

SUNDAY, MAY 25

 

 

BIKE THE TOUR DE BROOKLYN

 

You won’t find the Dodgers, but you will find pretty much anything else a major city would envy in Brooklyn. A great way to explore both its topography and spirit (and learn about the important work of Transportation Alternatives) is the annual Tour de Brooklyn. Hurry and register online, as required.

 

 

 

 

BLOOMING HIKE, BRONX

 

Why don’t you just go for a bloomin’ hike? Really. The NYC Park Rangers at Pelham Bay Park, our city’s largest, extend this sweetly simple invitation: “We’ll go looking for things in bloom. Come with us!”

 

Meet at the Pelham Bay Ranger Station (Bruckner Boulevard and Wilkinson Avenue) at 11AM for this casual and fun outing. Call 718.885.3467 for more information.

 

 

 

KAYAKING, MANHATTAN

 

What would the Summer on the Hudson Festival be without access to the water itself? Join the Downtown Boathouse veteran kayakers for a great experience for the whole family, paddling in a relatively quiet urban curve of the Hudson River estuary. This kicks off their season at Riverside Park South, which continues each Saturday after this weekend until October 12.

 

KAYAKING AND CANOEING, QUEENS

See great art at Socrates Sculpture Park and the Noguchi Museum with a wet butt (okay, hopefully dry if you’re coming out of a canoe) by paddling with the LIC Community Boathouse. Visit Socrates Sculpture Park’s beach at Hallets Cove (where 31st Avenue meets the East River) for walk-up tours of the cove. And feel free to hang out at the beach for fun banter as volunteers alternate between sitting, helping people into boats, and cleaning the shoreline.

 

NATURE WALK, BROOKLYN

 

Boy do those Prospect Park people work hard to provide natural experiences in NYC’s interior second city. Each Sunday (Saturdays too!) you’re welcome to stroll along for an hour to see the wildlife of this Olmstead gem. Meets at 3PM at the Audubon Center.

 

BIRDING HIKE, STATEN ISLAND

 

Set your alarm now and hustle down for a birding hike at Staten Island’s fantastic greenbelt. Meet at 7AM (ouch!) at the new Greenbelt Nature Center at High Rock Park, at 200 Nevada Avenue (off Rockland Avenue). Call 718.351.3450 for more information.

 

ASTRONOMY, QUEENS

 

This weekend the stars aren’t to be seen in Tribeca, they are to be seen from Bayside. Join the NYC Park Rangers’ monthly telescopic stargazer confab at Fort Totten Ranger Park. Get there by 730PM, and enter the fort entrance north of the 212 Street and Cross Island Parkway intersection. Call 718.352.1769 for more information. 

 

 

 

 

WEDNESDAY, MAY 28

 

STREET TREE CARE WORKSHOP, MANHATTAN

Grab a quick bite between your office and the historic Arsenal Building of Central Park where New York Tree Trust and Partnerships for Parks will be sharing fascinating and important knowledge about caring for young trees (we, as a city, are planting a lot of them!) for those who want to be on the green vanguard. Earn a Parks Volunteer Permit and free tools.

The class starts at 630PM and ends at 830PM. Register (or bring the workshop to your community) by calling 212.676.1929 or shooting an email to channaly.oum@parks.nyc.gov

 

 

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Horseshoe crabs at Plumb Beach. Photo by Klaus Schoenwiese. 

 

by Erik Baard

Horseshoe crabs having been laying and fertilizing eggs along our beaches, and the beaches of the continents as they were once assembled, for at least 350 million years and through several global mass extinctions. Somehow they’ve done all this mating without the help of MP3 players stocked with Barry White. A couple of years ago I was impelled to visit Plumb Beach, Brooklyn to investigate. I was lucky enough to have my extraordinarily talented photographer friend, Klaus Schoenwiese, with me. I hope you take the chance this Sunday, with the American Littoral Society. Check our WildWire, below, for details.

It was a magical night, set to the subtler music of crickets and lapping small waves. A yellow squash-colored full moon rose over eastern Rockaway Inlet, Jupiter shone brightly further south, and Ursa Major reeled across the northern sky. And Klaus observed another beautiful sight often glared out by the riotously incandescent city: bioluminescence. A tiny spot of sand glowed blue-green when nudged. Perhaps it was a juvenile jelly fish, since it was a tight source, not the mind of nebulous expanse one would expect from a patch of dinoflagellates saturating the sand.

 

Horseshoe crab mating train. Photo by Klaus Schoenwiese.

In Klaus’ photo of horseshoe crabs under the moon you’ll note the slipper shells and barnacles that are among the many species that make their homes on all surfaces these long-lived creatures (sometimes over 30 years, though they cast shells in youthful molting). Contrary to mythology, the pointed tail isn’t a stinger, but rather an ultraviolet light-sensitive periscope of sorts and a tool to right horseshoe crab when waves flip it on shore, leaving it vulnerable (despite a nifty ability to regrow limbs). Gleefully interfering with nature, we lifted and returned distressed specimens to the water.

 

Horseshoe crab flipped. Photo by Klaus Schoenwiese.

Every May and June you can spot horseshoe crabs swimming and crawling ashore in prime places like Jamaica Bay, Staten Island, and Plumb Beach. At the last location, the pattern was disrupted for a few years in the ’90s when sterile sand was dumped over the rich mud flats, depriving birds and horseshoe crabs of small snails and such to eat.

The females are significantly larger than the males, who desperately cling to their would-be mates (needy is the new black?). The female will haul herself to the intertidal zone’s highpoint and then partially bury herself into the wet sand to lay thousands of tiny, greenish eggs. At least one male will be in tow, and often several will descend upon her when she’s tucked in.

The males’ approach might be a terrible case study in the art of seduction, but it’s an efficient means of winning in what biologists call “sperm competition.” Besides, give the horseshoe crabs credit for one romantic touch, which human voyeurs can appreciate: they prefer to do it under a full moon.

The advantage of a full moon is that by laying eggs in the highest tidal point, subsequent high tides won’t wash away the eggs before they’re hatched and juveniles are ready to take their places in the deep bays or continental shelves a few weeks later. It will be ten years before you see them again, matured for reproduction. The lunar cycle and strictly defined mating ritual is so central to the horseshoe crab’s life that it has ten eyes (yes, TEN!) on its body. Additionally, there’s a row of optic sensors on its spike-like tail. The eyes and sensors are geared for measuring ambient ultraviolet light levels and for spotting mates. Mind you, this didn’t stop three of four amorous males from trying to mate with Klaus’ feet!

Horseshoecrabs. Photo by Klaus Schoenwiese.

As alien as their mating habits might be (or creepily familiar), horseshoe crabs are more a part of your daily life than you might expect. Each time you see pretty shorebirds and migrating birds in these areas, soaring over a strand, think of the humble horseshoe crab. This creature’s eggs are a critical food stock for the birds you’re admiring — so much so that they time their own annual cycles to it. You might also owe thanks to horseshoe crabs for your very ability to see: chitin from its shell and exoskeleton are a key ingredient in many contact lenses (as well hairspray and skin cream), and horseshoe crabs compound eyes and simple optic nerves have been a mainstay of medical optical studies for decades. Indeed, horseshoe crabs, which are not crabs at all, were the center of research that earned the Nobel Prize for medicine in 1967.

Another aspect of horseshoe crab physiology for humans is their blue-green blood (they use copper to carry oxygen, not iron), which sells for about $15,000 a quart. It’s chief value is a compound called Limulus Amebocyte Lysate (LAL). LAL is a fast, reliable indicator of bacterial toxins in medicines (so good that the Food and Drug Administration requires use of it) and in the human body. That’s right: there’s a chance you’ve been injected with horsehoe crab blood and didn’t even know it. A hot field of medical and evolutionary research is the commonality of human and horseshoe crab complementary immune responses.

But as you can imagine, the more uses humans find for this slow-maturing species, the fewer remain in the waters. Populations have markedly declined in recent years. Bird advocates like the Audubon Society have taken up the cause of horseshoe crab protection. If the spirit moves you, get involved in the important work of protecting this ancient cousin.

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Eastern gray squirrel in the Bronx. Photo by Steve Nanz. 

 

 

 

WildWire May 17-21

 

We’re LOADED with FREE outdoor activities this weekend and next week!

 

But first an important reminder: Bee Watchers 2008 needs volunteers. Scroll down a few days for more details, but here’s the skinny:

 

Orientation Locations
Alley Pond Environmental Center: May 19 6:00 PM
Central Park-North Meadow Recreation Center: May 21 6:00 PM
Greenbelt Nature Center: May 20 6:00 PM
Prospect Park Audubon Center: May 21 6:00 PM
Fordham University: May 22 6:00 PM

 

 

 

 

 

 

WALK to learn about trees, squirrels, or horseshoe crabs!

 

BIKE to learn about NYC’s green movement and arts (with a loaner program on Sunday)!

 

PLANT trees given for free to homeowners and gardeners!

 

HIKE through northern Manhattan!

 

FISH the East River!

 

 

 

 

 

SATURDAY, MAY 17:

FISHING – QUEENS

Come to Rainey Park between 1PM and 5PM to celebrate and shape the future of parks on the western Queens waterfront with Green Shores NYC, a community group that has been fostered by Partnerships for Parks. This rain or shine event includes catch-and-release fishing with I Fish NY, and live music and informative displays.

 

 

GARDENING – BRONX, MANHATTAN, QUEENS

Free trees from New York Restoration Project!

Clean the air, make the birds happy, and beautify your property with a free tree, thanks to the New York Restoration Project! Homeowners can swing by the green markets of Sunnyside, Queens and Inwood, Manhattan for their trees.

Bronxites can hop over to the YM-YWHA’s Environmental Fair (5625 Arlington Avenue at 256th Street) to adopt their trees.

Species include Red Bud, Dogwood, Cherry, Crabapple, Service Berry, Linden, Sweetgum, Oak, Tulip Poplar and Buckeye trees, ready for planting. First come, first served, so hurry!

 

 

 

 

HIKING – MANHATTAN

Join a NYC Hiking Meetup Group exploration of Upper Manhattan parks!

The NYC Hiking meetup group is hoofing it through northern Manhattan’s city and states parks. Meet at the 1 Train at 215th. Street and Broadway at 10AM. You’ll see old growth forests, marsh grasses, a meeting of the Harlem River (really a strait) and Hudson River (really and estuary at this latitude). You’ll be glad you joined this active group!

 

ROWING – BRONX

Row with Rocking the Boat!

Explore the vibrant Bronx River in a beautifully handcrafted rowboat with Rocking the Boat. Community rowing hours are 1PM-5PM at the Jose E Serrano Riverside Campus for Arts and The Environment.

 

 

 

 

SUNDAY, MAY 18

WALKS – BROOKLYN

 

Learn about New York City’s “other rodent” at the “Nuts about Squirrels” lecture at the Fort Greene Park Visitor Center (Myrtle Avenue and Washington Park) at 12PM.

 

Learn Your Trees!

 

Don’t leaf (couldn’t resist) Fort Greene Park Visitor Center right after the squirrel talk. Stay for a tree walk to learn about our local trees.  Starting at 1PM, you’ll stroll beneath the verdant spring canopy leaning to identify trees by bark, buds, and blossoms.

More Information: 718  722 3218

 

PADDLING – QUEENS

Kayak and Canoe with the LIC Community Boathouse!

Come to Socrates Sculpture Park’s beach at Hallets Cove in Astoria for free paddling with the LIC Community Boathouse between 1PM and 5PM.

BIKING – MANHATTAN

 

Lower East, Higher Green!

 

Bike through what should be the future of New York City with the Green Apple Tour. Explore gardens, greenways and riversides. Learn about composting, solar power, green buildings and more. The tour covers the Garden District and Lower East Side and is based on the fabulous Green Map System. This is an easy, two-hour ride, and all ages are welcome.

 

Meet at the Temperance Monument in Tompkins Square Park (Ave. A & East 9th St.) at 11AM.

 

BIKING – QUEENS

 

Bike ride with your kids – bikes and helmets provided!

 

 

Get to know Long Island City, famous for its waterfront and arts scene, while learning basic bike mechanics and riding safety skills. This trip focuses on youth aged 10-15 years old, and parents and teachers are welcome. Recycle-a-Bicycle provides instruction, bikes, and helmets for those without, but make sure you register ASAP (rideclub@recycleabicycle.org).

 

Meet at 46th Ave. and 5th St., down the block from the charming LIC Bar at 10AM. Wrap up the ride at 330PM.

 

 

WALK – BRONX

 

Join author and naturalist Betsy McCully, author of City at Water’s Edge, at Wave Hill for a slide-illustrated talk and nature walk as she discusses the geological and ecological forces that have shaped this region and the human forces that impact them.  Her book is available in the Wave Hill Shop.

 

 

 

WALK – BROOKLYN (Jamaica Bay)

Scoot down to the Jamaica Bay Wildlife Refuge at 7PM for an evening with one of our city’s most ancient resident species, the horseshoe crab. Don Riepe of the American Littoral Society leads the way. For more information or to register call 718 318-9344 or e-mail driepe@nyc.rr.com.

 

TUESDAY, MAY 20 

Tuesday, May 20, 2008 – 10-11 am.
Roll the carriage or toddle the toddler to Fort Greene Park for Babies, Books and Blooms. Brooklyn Public Library & Urban Park Rangers present story time and nature crafts. At Fort Greene Park Visitor’s Center.

 

 

 

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