検索キーワード： 生態学

As recently as 11,000 years ago - "near time" to geologists - mammoths, mastodons, gomphotheres, ground sloths, giant armadillos, native camels and horses, the dire wolf, and many other large mammals roamed North America. In what has become one of science's greatest riddles, these large animals vanished in North and South America around the time humans arrived at the end of the last great ice age.

Here Jonathan and Angela Scott tell the story of their modern day exploration of this extreme continent, a journey through the magnificent icy landscape, to explore the wildlife of this rare sanctuary, and reflect on the experiences of early explorers like Shackelton, Amundsen, Scott and Mawson, and on the relationship between man and wildlife in this remote and spectacular environment.

Very similar in style to Walden, and in fact written while he stayed at Walden Pond, this account chronicles Throeau's 1830 boat trip. In it, he weaves together travel writing, essays on religion, history, and lyrical poetry, as well as his own unique philosophy.

"Plus j'avance dans la vie et plus s'affirme en moi la conviction selon laquelle il ne peut y avoir de changement de société sans un profond changement humain. Et plus je pense aussi que seule une réelle et intime convergence des consciences peut nous éviter de choir dans la fragmentation et l'abîme. Ensemble, il nous faut de toute urgence prendre 'conscience de notre inconscience', de notre démesure écologique et sociétale, et réagir." (Pierre Rabhi)

Told with Thoreauian poeticism and appreciation to detail, Morgan Bulkeley Sr. guides the listener through the wonders of one of the World's most beautiful natural landscapes: that of the Berkshires of Massachusetts.

How can you truly belong to a place? What does being at home mean in a society that has always celebrated the search for greener pastures? And can a newcomer ever acquire the deep understanding of the land that comes from being part of a culture that has lived there for centuries? When Daniel Coleman came to Hamilton to take a position at McMaster University, he began to ask himself these kinds of questions, and Yardwork: A Biography of an Urban Place is his answer.

By turns epic and intimate, Telling Our Way to the Sea is both a staggering revelation of unraveling ecosystems and a profound meditation on our changing relationships with nature - and with one another. When the biologists Aaron Hirsh and Veronica Volny, along with their friend Graham Burnett, a historian of science, lead twelve college students to a remote fishing village on the Sea of Cortez, they come upon a bay of dazzling beauty and richness.

An entertaining and enlightening exploration of why waste matters, this cultural history explores an often ignored subject matter and makes a compelling argument for a deeper understanding of human and animal waste. Approaching the subject from a variety of perspectives - evolutionary, ecological, and cultural - this examination shows how integral excrement is to biodiversity, agriculture, public health, food production and distribution, and global ecosystems.

Why a unicycle? Why a cross-country trip? Why leave a prominent New York magazine and return to the simple life in Kentucky? Reminiscent of classic literary travelogues, Mark Schimmoeller's Slowspoke: A Unicyclist's Guide to America takes listeners on an inward, emotional journey as he inches across landscapes and communities from North Carolina to Arizona. Schimmoeller became inspired by his unicycle as an adolescent.

In the 2012 edition of its flagship report, Worldwatch celebrates the twentieth anniversary of the 1992 Earth Summit with a far-reaching analysis of progress toward building sustainable economies. Written and read in clear language, State of the World 2012 offers a new perspective on what changes and policies will be necessary to make sustainability a permanent feature of the world's economies.

An astonishing transformation over the last 20,000 years has seen our planet changed from a frigid wasteland into the temperate world within which our civilization has grown and thrived. This dynamic episode in our planet's history, right at the close of the Ice Age, saw not only a huge temperature hike but also the Earth's crust bouncing and bending in response to the melting of the great ice sheets and the filling of the ocean basins - dramatic geophysical events that triggered earthquakes, spawned tsunamis, and provoked a series of eruptions from the world's volcanoes.

Animal migration is a magnificent sight: a mile-long blanket of cranes rising from a Nebraska river and filling the sky; hundreds of thousands of wildebeests marching across the Serengeti; a blaze of orange as millions of monarch butterflies spread their wings to take flight. Nature’s great migrations have captivated countless spectators, none more so than premier ecologist David S. Wilcove. In No Way Home, his awe is palpable - as are the growing threats to migratory animals.

Framed by the author’s personal experience with backyard hens, Chickens: Their Natural and Unnatural Histories explores the history of the chicken from its descent from the dinosaurs to the space-age present. En route, Lembke surveys chickens in ancient Greece, the Middle Ages, the Renaissance, the 19th century, and modern times, including the role of chickens in Jewish and Muslim practices. She also investigates the birds’ contributions to science and their jaunty appearances in literature.

Paul Falkowski looks "under the hood" of microbes to find the engines of life, the actual working parts that do the biochemical heavy lifting for every living organism on Earth. With insight and humor, he explains how these miniature engines are built - and how they have been appropriated by and assembled like Lego sets within every creature that walks, swims, or flies. Falkowski shows how evolution works to maintain this core machinery of life, and how we and other animals are veritable conglomerations of microbes.

The Digital Age was expected to usher in an era of clean production, an alternative to smokestack industries and their pollutants. But as environmental journalist Elizabeth Grossman reveals in this penetrating analysis of high tech manufacture and disposal, digital may be sleek, but it's anything but clean. Deep within every electronic device lie toxic materials that make up the bits and bytes, a complex thicket of lead, mercury, cadmium, plastics, and a host of other often harmful ingredients.

In Once and Future Giants, science writer Sharon Levy digs through the evidence surrounding Pleistocene large animal ("megafauna") extinction events worldwide, showing that understanding this history - and our part in it - is crucial for protecting the elephants, polar bears, and other great creatures at risk today. These surviving relatives of the Ice Age beasts now face an intensified replay of that great die-off, as our species usurps the planet's last wild places while driving a warming trend more extreme than any in mammalian history.

In Getting to Green, Frederic C. Rich argues that meaningful progress on urgent environmental issues can be made only on a bipartisan basis. Rich reminds us of American conservation's conservative roots and of the bipartisan political consensus that had Republican congressmen voting for, and Richard Nixon signing, the most important environmental legislation of the 1970s.

Here, for the first time, is a collection of short speeches by the charismatic doctor and social activist Paul Farmer. One of the most passionate and influential voices for global health equity and social justice, Farmer encourages young people to tackle the greatest challenges of our times. Engaging, often humorous, and always inspiring, these speeches bring to light the brilliance and force of Farmer's vision in a single, accessible volume.

Beginning in his kayak in his home waters of eastern Long Island, Carl Safina's The View from Lazy Point takes us through the four seasons to the four points of the compass, from the high Arctic south to Antarctica, across the warm belly of the tropics from the Caribbean to the west Pacific, then home again.

Climate change is a major topic of concern today and will be so for the foreseeable future, as predicted changes in global temperatures, rainfall, and sea level continue to take place. But as Jan Zalasiewicz and Mark Williams reveal in The Goldilocks Planet, the climatic changes we are experiencing today hardly compare to the changes the Earth has seen over the last 4.5 billion years.