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The Auk

The Auk PDF Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 762

Book Description


The Auk

The Auk PDF Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 762

Book Description


The Ascent of Birds

The Ascent of Birds PDF Author: John Reilly
Publisher: Pelagic Publishing Ltd
ISBN: 1784271705
Category : Science
Languages : en
Pages : 369

Book Description
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)

Bird Species

Bird Species PDF Author: Dieter Thomas Tietze
Publisher: Springer
ISBN: 3319916890
Category : Science
Languages : en
Pages : 270

Book Description
The average person can name more bird species than they think, but do we really know what a bird “species” is? This open access book takes up several fascinating aspects of bird life to elucidate this basic concept in biology. From genetic and physiological basics to the phenomena of bird song and bird migration, it analyzes various interactions of birds – with their environment and other birds. Lastly, it shows imminent threats to birds in the Anthropocene, the era of global human impact. Although it seemed to be easy to define bird species, the advent of modern methods has challenged species definition and led to a multidisciplinary approach to classifying birds. One outstanding new toolbox comes with the more and more reasonably priced acquisition of whole-genome sequences that allow causative analyses of how bird species diversify. Speciation has reached a final stage when daughter species are reproductively isolated, but this stage is not easily detectable from the phenotype we observe. Culturally transmitted traits such as bird song seem to speed up speciation processes, while another behavioral trait, migration, helps birds to find food resources, and also coincides with higher chances of reaching new, inhabitable areas. In general, distribution is a major key to understanding speciation in birds. Examples of ecological speciation can be found in birds, and the constant interaction of birds with their biotic environment also contributes to evolutionary changes. In the Anthropocene, birds are confronted with rapid changes that are highly threatening for some species. Climate change forces birds to move their ranges, but may also disrupt well-established interactions between climate, vegetation, and food sources. This book brings together various disciplines involved in observing bird species come into existence, modify, and vanish. It is a rich resource for bird enthusiasts who want to understand various processes at the cutting edge of current research in more detail. At the same time it offers students the opportunity to see primarily unconnected, but booming big-data approaches such as genomics and biogeography meet in a topic of broad interest. Lastly, the book enables conservationists to better understand the uncertainties surrounding “species” as entities of protection.

The Oölogist

The Oölogist PDF Author:
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 1028

Book Description


Bird Bonds

Bird Bonds PDF Author: Gisela Kaplan
Publisher: Macmillan Publishers Aus.
ISBN: 1760788554
Category : Nature
Languages : en
Pages : 444

Book Description
Some Australian native birds become childhood sweethearts and court for years before they get 'married'. Others divorce because of personality clashes and different skill levels. Many negotiate their parenting duties. But how do these personal life events link to long-lasting bonds, long life-spans and exceptional overall intelligence? Professor Gisela Kaplan, an eminent voice in animal behaviour, and particularly bird behaviour, draws on the latest insights in the evolution of particular cognitive and social abilities. She uncovers motivations and attractions in partner choice that are far more complex than was once believed. She shows how humans and birds may be more alike in attachment and mating behaviour than we think - despite the enormous evolutionary distance between us. Based on a wealth of original research and complemented by illustrations and colour photographs, Bird Bonds is a valuable resource and a beguiling insight into the world of the birds around us.

All the Birds of the World

All the Birds of the World PDF Author: Josep del Hoyo
Publisher:
ISBN: 9788416728374
Category : Birds
Languages : en
Pages : 967

Book Description


The Great Auk

The Great Auk PDF Author: Errol Fuller
Publisher: Bunker Hill Publishing, Inc.
ISBN: 9781593730031
Category : Nature
Languages : en
Pages : 56

Book Description
A seabird whose extinction was entirely the work of humankind, the last two recorded great auk's were killed on June 3, 1844. This book pays homage to this incredible species.

Bulletin

Bulletin PDF Author: United States National Museum
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 600

Book Description


Life Histories of North American Gallinaceous Birds

Life Histories of North American Gallinaceous Birds PDF Author: Arthur Cleveland Bent
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 618

Book Description


Bulletin

Bulletin PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1308

Book Description