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Land bridges are the causeways of biodiversity. When they form, organisms are introduced into a new patchwork of species and habitats, forever altering the ecosystems into which they flow; and when land bridges disappear or fracture, organisms are separated into reproductively isolated populations that can evolve independently. More than this, land bridges play a role in determining global climates through changes to moisture and heat transport and are also essential factors in the development of biogeographic patterns across geographically remote regions. In this book, paleobotanist Alan Graham traces the formation and disruption of key New World land bridges and describes the biotic, climatic, and biogeographic ramifications of these land masses’ changing formations over time. Looking at five land bridges, he explores their present geographic setting and climate, modern vegetation, indigenous peoples (with special attention to their impact on past and present vegetation), and geologic history. From the great Panamanian isthmus to the boreal connections across the North Atlantic and North Pacific Oceans that allowed exchange of organisms between North America, Europe, and Asia, Graham’s sweeping, one-hundred-million-year history offers new insight into the forces that shaped the life and land of the New World.
Contents include: North America: landforms; North America: climate, plants and animals; North America: history and culture; Introducing South America; South America: landforms; South America: climate, plants and animals; South America: history and culture; Continental connections and plate tectonics; Land bridges: the narrow link; Land bridges: dropping seas.
"In this evocative memoir, Cassandra Lane deftly uses the act of imagination to reclaim her ancestors’ story as a backdrop for telling her own. The tradition of Black women’s storytelling leaps forward within these pages—into fresh, daring, and excitingly new territory." —Bridgett M. Davis, author of The World According to Fannie Davis When Cassandra Lane finds herself pregnant at thirty-five, the knowledge sends her on a poignant exploration of memory to prepare for her entry into motherhood. She moves between the twentieth-century rural South and present-day Los Angeles, reimagining the intimate life of her great-grandparents Mary Magdelene Magee and Burt Bridges, and Burt's lynching at the hands of vengeful white men in his southern town. We Are Bridges turns to creative nonfiction to reclaim a family history from violent erasure so that a mother can gift her child with an ancestral blueprint for their future. Haunting and poetic, this debut traces the strange fruit borne from the roots of personal loss in one Black family—and considers how to take back one’s American story.
Data of geology, oceanography, paleontology, plant geography, and anthropology focus on problems and lessons of Beringia. Includes papers presented at Symposium held at VII Congress of International Association for Quaternary Research, Boulder, Colorado, 1965.
Species distribution, conservation management, landscape planning.
This autobiography by one of rock-and-roll's most important foremothers, June Millington, tells the story that's never been told: how girls in the mid-60's started all-girl bands, learned to play electric, and became Fanny, one of the first all-female rock bands to be signed to a major label. Fanny soon began recording and touring worldwide with bands like Chicago and Dr. John. After Fanny, June became involved in the women's music movement when she was asked to play on and tour behind Cris Williamson's "The changer and the changed," which would become the defining album of that genre. Women's music quickly evolved into an independent feminist music network that included (often collectively run) production companies,venues, festivals, record labels, and distribution networks. Land of a thousand bridges chronicles the story of a young girl born to a mixed-race couple in the Phillipines, who traveled to the US with big dreams of becoming a rock star, and made those dreams come true.
In Mysteries of Terra Firma, James Lawrence Powell tells an engrossing three-part tale of how we came to understand the ground on which we walk, and how that ground holds the key to the greatest secrets of deep space and time. Naming his profound stories Time, Drift, and Chance, he tells of the three twentieth-century revolutions in thought that created the amazing science of Earth -- and of all planets to the edge of the universe. The riddle that drove the first revolution is obvious and yet in 1904 remained impenetrable: how old is Earth? An encounter between the imperious Lord Kelvin and a New Zealand farm-boy-turned-physicist, Ernest Rutherford, set the stage for the solution and launched a golden century of geology. As a result, scientists learned that if the 4.5 billion years of geologic time were compressed into a single twenty-four-hour period, Homo sapiens would have arrived only in the last second. The geological Revolution of Time reveals how long the ground on which we walk has existed, and how briefly we have trod that ground. In the early twentieth century, German meteorologist and polar explorer Alfred Wegener proposed a counterintuitive, heretical theory: that terra firma is not so firm; instead of being fixed in place, continents drift. In 1926, petroleum geologists convened in New York City to discuss Wegener's radical idea, where it was met with outrage and skepticism: "If we are to believe Wegener's hypothesis we must forget everything which has been learned in the last seventy years and start all over again," one attendee said. Forty years later, a new generation did exactly that. The Revolution of Drift, the second part of Powell's narrative, showed us how the ground on which we walk moves. Throughout geologic time, meteorites have incessantly bombarded everything in the solar system. Far from serene and predictable, the planets are ruled by random violence on an unimaginable scale. Once a mountain-sized meteorite flew through space, struck the Earth, killed the dinosaurs and two-thirds of all species, and spared the small hamster-sized creature that happened to be our ancestor. The chance of that happening again is essentially zero. So, the final revolution in Powell's history of a golden century of geology is the Revolution of Chance. Simply put, this revolution in thought has transformed our understanding of how lucky we really are. If we can learn so much from considering no more than the rocks beneath our feet, what will we learn when we begin walking on other planets? Mysteries of Terra Firma is both charming in its storytelling and staggering in its implications. Discovering the ground on which we stand is a fascinating journey into our past -- and our future.
Foundations of Biogeography provides facsimile reprints of seventy-two works that have proven fundamental to the development of the field. From classics by Georges-Louis LeClerc Compte de Buffon, Alexander von Humboldt, and Charles Darwin to equally seminal contributions by Ernst Mayr, Robert MacArthur, and E. O. Wilson, these papers and book excerpts not only reveal biogeography's historical roots but also trace its theoretical and empirical development. Selected and introduced by leading biogeographers, the articles cover a wide variety of taxonomic groups, habitat types, and geographic regions. Foundations of Biogeography will be an ideal introduction to the field for beginning students and an essential reference for established scholars of biogeography, ecology, and evolution. List of Contributors John C. Briggs, James H. Brown, Vicki A. Funk, Paul S. Giller, Nicholas J. Gotelli, Lawrence R. Heaney, Robert Hengeveld, Christopher J. Humphries, Mark V. Lomolino, Alan A. Myers, Brett R. Riddle, Dov F. Sax, Geerat J. Vermeij, Robert J. Whittaker
The story is based on a fictional disaster that occurred in Peru on July 20, 1714. A rope bridge woven by the Incas on the road between Lima and Cuzco collapsed when five people were crossing it. They all fell into the river from a great height and were killed. Brother Juniper, a Franciscan friar who was about to cross the bridge himself, witnessed the tragedy. Being deeply pious, he saw in what happened a possible divine providence. Did the dead deserve to have their lives cut short in such a terrible way? The monk tries to learn as much as he can about the five victims, finding and questioning people who knew them. As a result of years of investigation, he compiles a voluminous book with all the evidence he has gathered that the beginning and end of human life are part of God's plan... The Bridge of San Luis Rey won the 1928 Pulitzer Prize for the Novel, and remains widely acclaimed as Wilder's most famous work. In 1998, the book was rated number 37 by the editorial board of the American Modern Library on the list of the 100 best 20th-century novels. Time magazine included the novel in its TIME 100 Best English-language Novels from 1923 to 2005.
Cuban and Cuban-American scholars, writers, and artists celebrate the possibility of overcoming divisions of politics and hate