Field Manual of Wildlife Diseases

Field Manual of Wildlife Diseases PDF Author:
Publisher: Geological Survey (USGS)
ISBN:
Category : Medical
Languages : en
Pages : 444

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Book Description

Field Manual of Wildlife Diseases

Field Manual of Wildlife Diseases PDF Author:
Publisher: Geological Survey (USGS)
ISBN:
Category : Medical
Languages : en
Pages : 444

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Book Description


The Wild Robot

The Wild Robot PDF Author: Peter Brown
Publisher:
ISBN: 9781536435078
Category : Juvenile Fiction
Languages : en
Pages : 0

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Book Description
Roz the robot discovers that she is alone on a remote, wild island with no memory of where she is from or why she is there, and her only hope of survival is to try to learn about her new environment from the island's hostile inhabitants.

Birds at Your Feeder

Birds at Your Feeder PDF Author: Erica H. Dunn
Publisher: W. W. Norton & Company
ISBN: 9780393322316
Category : Art
Languages : en
Pages : 436

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Book Description
Summarizing data from Project FeederWatch, a continent-wide survey sponsored by Cornell Laboratory of Ornithology, Bird Studies Canada, National Audubon Society, and the Canadian Nature Federation.

Bird Species

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

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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.

Avian Migration

Avian Migration PDF Author: Peter Berthold
Publisher: Springer Science & Business Media
ISBN: 3662059576
Category : Science
Languages : en
Pages : 601

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Book Description
P. Berthold and E. Gwinnd Bird migration is an intriguing aspect of the living world - so much so that it has been investigated for as long, and as thoroughly, as almost any other natural phenomenon. Aristotle, who can count as the founder of scientific ornithology, paid very close attention to the migrations of the birds he ob served, but it was not until the reign of Friedrich II, in the first half of the 13th century, that reliable data began to be obtained. From then on, the data base grew rapidly. Systematic studies of bird migration were introduced when the Vogelwarte Rossitten was founded, as the first ornithological biological observation station in the world (see first chapter "In Memory of Vogelwarte Rossitten"). This area later received enormous impetus when ex perimental research on the subject was begun: the large-scale bird-ringing experiment initiated in Rossitten in 1903 by Johannes Thienemann (who was inspired by the pioneering studies of C. C. M. Mortensen), the experiments on photoperiodicity carried out by William Rowan in the 1920s in Canada and retention and release experiments performed by Thienemann in the 1930s in Rossitten, the first experimental study on the orientation of migratory birds. After the Second World War, migration research, while continuing in the previous areas, also expanded into new directions such as radar ornithology, ecophysiology and hormonal control mechanisms, studies of evolution, ge netics, telemetry and others.

I Know Why the Caged Bird Sings

I Know Why the Caged Bird Sings PDF Author: Maya Angelou
Publisher: Random House
ISBN: 030747772X
Category : Biography & Autobiography
Languages : en
Pages : 289

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Book Description
Here is a book as joyous and painful, as mysterious and memorable, as childhood itself. I Know Why the Caged Bird Sings captures the longing of lonely children, the brute insult of bigotry, and the wonder of words that can make the world right. Maya Angelou’s debut memoir is a modern American classic beloved worldwide. Sent by their mother to live with their devout, self-sufficient grandmother in a small Southern town, Maya and her brother, Bailey, endure the ache of abandonment and the prejudice of the local “powhitetrash.” At eight years old and back at her mother’s side in St. Louis, Maya is attacked by a man many times her age—and has to live with the consequences for a lifetime. Years later, in San Francisco, Maya learns that love for herself, the kindness of others, her own strong spirit, and the ideas of great authors (“I met and fell in love with William Shakespeare”) will allow her to be free instead of imprisoned. Poetic and powerful, I Know Why the Caged Bird Sings will touch hearts and change minds for as long as people read. “I Know Why the Caged Bird Sings liberates the reader into life simply because Maya Angelou confronts her own life with such a moving wonder, such a luminous dignity.”—James Baldwin From the Paperback edition.

Bird Song

Bird Song PDF Author: Clive K. Catchpole
Publisher: Cambridge University Press
ISBN: 9780521544009
Category : Nature
Languages : en
Pages : 264

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Book Description
Explains how and why birds sing to one another.

Supernavigators

Supernavigators PDF Author: David Barrie
Publisher: The Experiment
ISBN: 1615196692
Category : Science
Languages : en
Pages : 320

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Book Description
“Just astonishing . . . Our natural navigational capacities are no match for those of the supernavigators in this eye-opening book.”—Frans de Waal, The New York Times Book Review Publisher's note: Supernavigators was published in the UK under the title Incredible Journeys. Animals plainly know where they’re going, but how they know has remained a stubborn mystery—until now. Supernavigators is a globe-trotting voyage of discovery alongside astounding animals of every stripe: dung beetles that steer by the Milky Way, box jellyfish that can see above the water (with a few of their twenty-four eyes), sea turtles that sense Earth’s magnetic field, and many more. David Barrie consults animal behaviorists and Nobel Prize–winning scientists to catch us up on the cutting edge of animal intelligence—revealing these wonders in a whole new light.

Collections for Young Scholars

Collections for Young Scholars PDF Author:
Publisher:
ISBN: 9780812652000
Category : Literature
Languages : en
Pages : 664

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Book Description


Official Year Book of the Commonwealth of Australia No. 58, 1972

Official Year Book of the Commonwealth of Australia No. 58, 1972 PDF Author:
Publisher: Aust. Bureau of Statistics
ISBN:
Category :
Languages : en
Pages : 1104

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Book Description