Horseshoe Crabs And Shorebirds

Presents a portrait of the Delaware Bay in the spring when a wide variety of animals, including minnows, mice, turtles, raccoons, and especially migrating shorebirds, come to feed on the billions of eggs laid by horseshoe crabs.

Traveling from the Delaware Bay to the Florida Panhandle, this examination is a quest through the natural history and science behind one of nature's oldest and oddest survivors--the horseshoe crab. With ten eyes, five pairs of walking legs, a heart half the length of their bodies, and blood that can save a person's life, horseshoe crabs have been on this planet for 445 million years--since long before the dinosaurs arrived. This book explores their unique biology and sex life, explains their importance to medical science and migratory shorebirds, and introduces readers to the people who are working to study and protect them.

Horseshoe crabs, those mysterious ancient mariners, lured me into the sea as a child along the beaches of New Jersey. Drawn to their shiny domed shells and spiked tails, I could not resist picking them up, turning them over and watching the wondrous mechanical movement of their glistening legs, articulating with one another as smoothly as the inner working of a clock. What was it like to be a horseshoe crab, I wondered? What did they eat? Did they always move around together? Why were some so large and others much smaller? How old were they, anyway? What must it feel like to live underwater? What else was out there, down there, in the cool, green depths that gave rise to such intriguing creatures? The only way to find out, I reasoned, would be to go into the ocean and see for myself, and so I did, and more than 60 years later, I still do.

Horseshoe crabs, shorebirds, and humans converge in a frenzy of activity. Every spring millions of horseshoe crabs crawl to the beaches of Delaware Bay to lay their eggs. But they aren’t the only ones crowding ashore. Flocks of shorebirds migrating north from South America stop to feed on the horseshoe crab eggs. People also flock to the scene. Scientists and tourists turn out to see the spectacle and learn more about the creatures that call this habitat home for a few weeks. Alan Marks' gorgeous paintings bring the reader down to the shoreline to observe this exciting annual event that interconnects species in a web of life and an ancient food chain.

Life Along the Delaware Bay focuses on the area as an ecosystem, the horseshoe crab as a keystone species within that system, and the crucial role that the bay plays in the migratory ecology of shorebirds. Lawrence Niles, Joanna Burger, and Amanda Dey examine current efforts to protect the bay and identify new efforts that must take place to ensure it remains an intact ecological system. Over three hundred stunning color photographs and maps capture the beauty and majesty of this unique treasure, one that must be protected for generations to come.

Thousands of ravenous tiny shorebirds race along the water’s edge of Delaware Bay, feasting on pin-sized horseshoe-crab eggs. Fueled by millions of eggs, the migrating red knots fly on. When they arrive at last in their arctic breeding grounds, they will have completed a near-miraculous 9,000-mile journey that began in Tierra del Fuego. Deborah Cramer followed these knots, whose numbers have declined by 75 percent, on their extraordinary odyssey from one end of the earth to the other—from an isolated beach at the tip of South America all the way to the icy tundra. In her firsthand account, she explores how diminishing a single stopover can compromise the birds' entire journey, and how the loss of horseshoe crabs—ancient animals that come ashore but once a year—threatens not only the survival of red knots but also human well-being: the unparalleled ability of horseshoe-crab blood to detect harmful bacteria in vaccines, medical devices, and intravenous drugs safeguards human health. Cramer offers unique insight into how, on an increasingly fragile and congested shore, the lives of red knots, horseshoe crabs, and humans are intertwined. She eloquently portrays the tenacity of small birds and the courage of many people who, bird by bird and beach by beach, keep red knots flying.

Like a perfect day at the beach, Crab Moon leaves an indelible memory of a special adventure, and a quiet message about doing our part to preserve earth's oldest creatures. One June night, under the full moon, Daniel’s mother wakes him up to see the extraordinary sight of horseshoe crabs spawning on the beach, just as they have every spring for an awesome 350 million years. But when Daniel returns in the morning, he finds only one lonely crab, marooned upside down in the sand. Can he possibly save it? Like a perfect day at the beach, Crab Moon leaves an indelible memory of a special adventure between parent and child, and a quiet message about doing our part to preserve even earth’s oldest creatures. Back matter includes a note about horseshoe crabs.

Read Along or Enhanced eBook: How can a leaf become a fish? Join two young children and their dads to find out, as they observe life in and around a stream. Energetic collage art and simple, lyrical text depict the ways plants and animals are connected in the food web. Back matter provides information about the trout life cycle as well as conservation efforts that kids can do themselves. It's a natural choice for Earth Day.

B95 can feel it: a stirring in his bones and feathers. It's time. Today is the day he will once again cast himself into the air, spiral upward into the clouds, and bank into the wind. He wears a black band on his lower right leg and an orange flag on his upper left, bearing the laser inscription B95. Scientists call him the Moonbird because, in the course of his astoundingly long lifetime, this gritty, four-ounce marathoner has flown the distance to the moon—and halfway back! B95 is a robin-sized shorebird, a red knot of the subspecies rufa. Each February he joins a flock that lifts off from Tierra del Fuego, headed for breeding grounds in the Canadian Arctic, nine thousand miles away. Late in the summer, he begins the return journey. B95 can fly for days without eating or sleeping, but eventually he must descend to refuel and rest. However, recent changes at ancient refueling stations along his migratory circuit—changes caused mostly by human activity—have reduced the food available and made it harder for the birds to reach. And so, since 1995, when B95 was first captured and banded, the worldwide rufa population has collapsed by nearly 80 percent. Most perish somewhere along the great hemispheric circuit, but the Moonbird wings on. He has been seen as recently as November 2011, which makes him nearly twenty years old. Shaking their heads, scientists ask themselves: How can this one bird make it year after year when so many others fall? National Book Award–winning author Phillip Hoose takes us around the hemisphere with the world's most celebrated shorebird, showing the obstacles rufa red knots face, introducing a worldwide team of scientists and conservationists trying to save them, and offering insights about what we can do to help shorebirds before it's too late. With inspiring prose, thorough research, and stirring images, Hoose explores the tragedy of extinction through the triumph of a single bird. Moonbird is one The Washington Post's Best Kids Books of 2012. A Common Core Title.

This book brings together 20 scientists who have worked on all aspects of horseshoe crab biology to compile the first fully detailed, comprehensive view of Limulus polyphemus. An indispensable resource, the volume describes behavior, natural history, and ecology; anatomy, physiology, distribution, development, and life cycle.