The Ascent of Birds

The Ascent of Birds
Title The Ascent of Birds PDF eBook
Author John Reilly
Publisher Pelagic Publishing Ltd
Total Pages 369
Release 2018-04-16
Genre Science
ISBN 1784271705

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When and where did the ancestors of modern birds evolve? What enabled them to survive the meteoric impact that wiped out the dinosaurs? How did these early birds spread across the globe and give rise to the 10,600-plus species we recognise today ― from the largest ratites to the smallest hummingbirds? Based on the latest scientific discoveries and enriched by personal observations, The Ascent of Birds sets out to answer these fundamental questions. The Ascent of Birds is divided into self-contained chapters, or stories, that collectively encompass the evolution of modern birds from their origins in Gondwana, over 100 million years ago, to the present day. The stories are arranged in chronological order, from tinamous to tanagers, and describe the many dispersal and speciation events that underpin the world's 10,600-plus species. Although each chapter is spearheaded by a named bird and focuses on a specific evolutionary mechanism, the narrative will often explore the relevance of such events and processes to evolution in general. The book starts with The Tinamou’s Story, which explains the presence of flightless birds in South America, Africa, and Australasia, and dispels the cherished role of continental drift as an explanation for their biogeography. It also introduces the concept of neoteny, an evolutionary trick that enabled dinosaurs to become birds and humans to conquer the planet. The Vegavis's Story explores the evidence for a Cretaceous origin of modern birds and why they were able to survive the asteroid collision that saw the demise not only of dinosaurs but of up to three-quarters of all species. The Duck's Story switches to sex: why have so few species retained the ancestral copulatory organ? Or, put another way, why do most birds exhibit the paradoxical phenomenon of penis loss, despite all species requiring internal fertilisation? The Hoatzin's Story reveals unexpected oceanic rafting from Africa to South America: a stranger-than-fiction means of dispersal that is now thought to account for the presence of other South American vertebrates, including geckos and monkeys. The latest theories underpinning speciation are also explored. The Manakin’s Story, for example, reveals how South America’s extraordinarily rich avifauna has been shaped by past geological, oceanographic and climatic changes, while The Storm-Petrel’s Story examines how species can evolve from an ancestral population despite inhabiting the same geographical area. The thorny issue of what constitutes a species is discussed in The Albatross's Story, while The Penguin’s Story explores the effects of environment on phenotype ― in the case of the Emperor penguin, the harshest on the planet. Recent genomic advances have given scientists novel approaches to explore the distant past and have revealed many unexpected journeys, including the unique overland dispersal of an early suboscine from Asia to South America (The Sapayoa’s Story) and the blackbird's ancestral sweepstake dispersals across the Atlantic (The Thrush’s Story). Additional vignettes update more familiar concepts that encourage speciation: sexual selection (The Bird-of-Paradise's Story); extended phenotypes (The Bowerbird's Story); hybridisation (The Sparrow's Story); and 'great speciators' (The White-eye's Story). Finally, the book explores the raft of recent publications that help explain the evolution of cognitive skills (The Crow's Story); plumage colouration (The Starling's Story); and birdsong (The Finch's Story)

Vesper Flights

Vesper Flights
Title Vesper Flights PDF eBook
Author Helen Macdonald
Publisher Grove Press
Total Pages 282
Release 2020-08-25
Genre Literary Collections
ISBN 0802146694

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The New York Times–bestselling author of H is for Hawk explores the human relationship to the natural world in this “dazzling” essay collection (Wall Street Journal). In Vesper Flights, Helen Macdonald brings together a collection of her best loved essays, along with new pieces on topics ranging from nostalgia for a vanishing countryside to the tribulations of farming ostriches to her own private vespers while trying to fall asleep. Meditating on notions of captivity and freedom, immigration and flight, Helen invites us into her most intimate experiences: observing the massive migration of songbirds from the top of the Empire State Building, watching tens of thousands of cranes in Hungary, seeking the last golden orioles in Suffolk’s poplar forests. She writes with heart-tugging clarity about wild boar, swifts, mushroom hunting, migraines, the strangeness of birds’ nests, and the unexpected guidance and comfort we find when watching wildlife.

How Birds Evolve

How Birds Evolve
Title How Birds Evolve PDF eBook
Author Douglas J. Futuyma
Publisher Princeton University Press
Total Pages 284
Release 2021-10-19
Genre Science
ISBN 0691227268

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A marvelous journey into the world of bird evolution How Birds Evolve explores how evolution has shaped the distinctive characteristics and behaviors we observe in birds today. Douglas Futuyma describes how evolutionary science illuminates the wonders of birds, ranging over topics such as the meaning and origin of species, the evolutionary history of bird diversity, and the evolution of avian reproductive behaviors, plumage ornaments, and social behaviors. In this multifaceted book, Futuyma examines how birds evolved from nonavian dinosaurs and reveals what we can learn from the "family tree" of birds. He looks at the ways natural selection enables different forms of the same species to persist, and discusses how adaptation by natural selection accounts for the diverse life histories of birds and the rich variety of avian parenting styles, mating displays, and cooperative behaviors. He explains why some parts of the planet have so many more species than others, and asks what an evolutionary perspective brings to urgent questions about bird extinction and habitat destruction. Along the way, Futuyma provides an insider's perspective on how biologists practice evolutionary science, from studying the fossil record to comparing DNA sequences among and within species. A must-read for bird enthusiasts and curious naturalists, How Birds Evolve shows how evolutionary biology helps us better understand birds and their natural history, and how the study of birds has informed all aspects of evolutionary science since the time of Darwin.

Vulture

Vulture
Title Vulture PDF eBook
Author Katie Fallon
Publisher University Press of New England
Total Pages 256
Release 2017-03-07
Genre Nature
ISBN 151260030X

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Turkey vultures, the most widely distributed and abundant scavenging birds of prey on the planet, are found from central Canada to the southern tip of Argentina, and nearly everywhere in between. In the United States we sometimes call them buzzards; in parts of Mexico the name is aura cabecirroja, in Uruguay jote cabeza colorada, and in Ecuador gallinazo aura. A huge bird, the turkey vulture is a familiar sight from culture to culture, in both hemispheres. But despite being ubiquitous and recognizable, the turkey vulture has never had a book of literary nonfiction devoted to it - until Vulture. Floating on six-foot wings, turkey vultures use their keen senses of smell and sight to locate carrion. Unlike their cousin the black vulture, turkey vultures do not kill weak or dying animals; instead, they cleanse, purify, and renew the environment by clearing it of decaying carcasses, thus slowing the spread of such dangerous pathogens as anthrax, rabies, and botulism. The beauty, grace, and important role of these birds in the ecosystem notwithstanding, turkey vultures are maligned and underappreciated; they have been accused of spreading disease and killing livestock, neither of which has ever been substantiated. Although turkey vultures are protected under the Migratory Bird Treaty Act, which makes harming them a federal offense, the birds still face persecution. They've been killed because of their looks, their odor, and their presence in proximity to humans. Even the federal government occasionally sanctions "roost dispersals," which involve the harassment and sometimes the murder of communally roosting vultures during the cold winter months. Vulture follows a year in the life of a typical North American turkey vulture. By incorporating information from scientific papers and articles, as well as interviews with world-renowned raptor and vulture experts, author Katie Fallon examines all aspects of the bird's natural history: breeding, incubating eggs, raising chicks, migrating, and roosting. After reading this book you will never look at a vulture in the same way again.

Where Song Began

Where Song Began
Title Where Song Began PDF eBook
Author Tim Low
Publisher Yale University Press
Total Pages 424
Release 2016-09-27
Genre Science
ISBN 0300226802

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An authoritative and entertaining exploration of Australia’s distinctive birds and their unheralded role in global evolution Renowned for its gallery of unusual mammals, Australia is also a land of extraordinary birds. But unlike the mammals, the birds of Australia flew beyond the continent’s boundaries and around the globe many millions of years ago. This eye-opening book tells the dynamic but little-known story of how Australia provided the world with songbirds and parrots, among other bird groups, why Australian birds wield surprising ecological power, how Australia became a major evolutionary center, and why scientific biases have hindered recognition of these discoveries. From violent, swooping magpies to tool-making cockatoos, Australia’s birds are strikingly different from birds of other lands—often more intelligent and aggressive, often larger and longer-lived. Tim Low, a renowned biologist with a rare storytelling gift, here presents the amazing evolutionary history of Australia’s birds. The story of the birds, it turns out, is inseparable from the story of the continent itself and also the people who inhabit it.

Cassell's Book of Birds

Cassell's Book of Birds
Title Cassell's Book of Birds PDF eBook
Author Thomas Rymer Jones
Publisher BoD – Books on Demand
Total Pages 326
Release 2023-10-18
Genre
ISBN 3385212960

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Falconer on the Edge

Falconer on the Edge
Title Falconer on the Edge PDF eBook
Author Rachel Dickinson
Publisher Houghton Mifflin Harcourt
Total Pages 248
Release 2009
Genre Biography & Autobiography
ISBN 9780618806232

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Rachel Dickinson profiles falconer Steve Chindgren, a man willing to make extreme sacrifices to continue practicing the sport that has ruled his life. Dickinson arrives at a sense of falconry’s allure: the unpredictable nature of the hunt and the soaring exhilaration of success. Further exploration unveils the enormous emotional cost to a falconer who establishes an extraordinary tie to his birds. When, in the space of two days, Chindgren loses two birds that he’d been training for years, he is plunged into a profound depression that is only deepened when Jomo, his best bird, slows down because of old age. In addition to this challenge, Chindgren faces the danger to falconry that the modern world presents. Grouse habitat is being degraded by mining, agriculture, and gas industry interests. And the number of falconers is dwindling--the corps is graying and has few acolytes. Falconry is a sport that requires persistence, stoicism, and sacrifice; in this captivating account, Dickinson illuminates a fascinating subculture and one of its most hard core personalities.