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The Ostrich Communal Nesting System

The Ostrich Communal Nesting System PDF Author: Brian C.R. Bertram
Publisher: Princeton University Press
ISBN: 1400863147
Category : Science
Languages : en
Pages : 206

Book Description
As the study of cooperative breeding systems expands, a number of key species form the examples that underpin our general understanding. The ostrich is increasingly becoming such a textbook species, on the basis of the results obtained in Brian Bertram's study of vigilance and egg discrimination in this extraordinary bird. Here Bertram presents new data on the ostrich communal nesting system, in which several females lay in one female's nest, with only one female and the male doing all the work. The Ostrich Communal Nesting System unravels the basis of the cooperation observed, and explains how a system involving apparent altruism is maintained by natural selection. It is now possible as never before to explain and quantify the effects of the different choices these birds make and to integrate ecological and morphological factors such as predation and size. Based on three seasons of study in Tsavo West National Park in Kenya, this book depended on recognizing individual birds, detecting and monitoring well-concealed nests, determining motherhood of eggs from their surface appearance, and time-lapse photography of nests. Key findings were that females could switch rapidly between reproductive strategies, that a nesting female could recognize her own eggs and when necessary discriminate against those of other females, and that the whiteness of ostrich eggs is an adaptation that protects them against overheating but at the cost of greater vulnerability to predation. Originally published in 1992. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

The Ostrich Communal Nesting System

The Ostrich Communal Nesting System PDF Author: Brian C.R. Bertram
Publisher: Princeton University Press
ISBN: 1400863147
Category : Science
Languages : en
Pages : 206

Book Description
As the study of cooperative breeding systems expands, a number of key species form the examples that underpin our general understanding. The ostrich is increasingly becoming such a textbook species, on the basis of the results obtained in Brian Bertram's study of vigilance and egg discrimination in this extraordinary bird. Here Bertram presents new data on the ostrich communal nesting system, in which several females lay in one female's nest, with only one female and the male doing all the work. The Ostrich Communal Nesting System unravels the basis of the cooperation observed, and explains how a system involving apparent altruism is maintained by natural selection. It is now possible as never before to explain and quantify the effects of the different choices these birds make and to integrate ecological and morphological factors such as predation and size. Based on three seasons of study in Tsavo West National Park in Kenya, this book depended on recognizing individual birds, detecting and monitoring well-concealed nests, determining motherhood of eggs from their surface appearance, and time-lapse photography of nests. Key findings were that females could switch rapidly between reproductive strategies, that a nesting female could recognize her own eggs and when necessary discriminate against those of other females, and that the whiteness of ostrich eggs is an adaptation that protects them against overheating but at the cost of greater vulnerability to predation. Originally published in 1992. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

The Ostrich and the Egg

The Ostrich and the Egg PDF Author: Thomas O'Neil
Publisher: Createspace Independent Publishing Platform
ISBN: 9781983414251
Category :
Languages : en
Pages : 24

Book Description
This is a full color book about the adventures of Ollie the Ostrich, intended for children 3 through ages 7. Ollie deals with his home the egg shell and a peephole with some exciting encounters. Ollie has a yearning to break free of his shell and see the world. Ollie's journey takes him all the way to the Pyramids to find his lost friend AL. Finally Ollie introduces kids to a maze, alphabet, basic arithmetic and farewell to next time.

An Egg Is Quiet

An Egg Is Quiet PDF Author: Dianna Aston
Publisher: Chronicle Books
ISBN: 1452133131
Category : Juvenile Fiction
Languages : en
Pages : 37

Book Description
Introduce your little budding naturalists to the wonderful world of eggs with this beautiful picture book full of wit and charm. Award-winning artist Sylvia Long has teamed with up-and-coming author Dianna Aston to create this gorgeous and informative introduction to eggs. From tiny hummingbird eggs to giant ostrich eggs, oval ladybug eggs to tubular dogfish eggs, gooey frog eggs to fossilized dinosaur eggs, it magnificently captures the incredible variety of eggs and celebrates their beauty and wonder. The evocative text is sure to inspire lively questions and observations. Yet while poetic in voice and elegant in design, the book introduces children to more than sixty types of eggs and an interesting array of egg facts. Even the endpapers brim with information. A tender and fascinating guide that is equally at home being read to a child on a parent’s lap as in a classroom reading circle. Plus, this is the fixed format version, which looks almost identical to the print edition. Praise for An Egg Is Quiet: A Junior Library Guild Premiere Selection A New York Public Library Title for Reading and Sharing A Chicago Public Library Best of the Best “A delight for budding naturalists of all stripes, flecks, dots, and textures.” —Kirkus Reviews, starred review “This attractive volume pleases on both aesthetic and intellectual level.” —Publishers Weekly, starred review “Beautifully illustrated. . . . Will inspire kids to marvel at animals’ variety and beauty.” —Booklist

The Odd Egg

The Odd Egg PDF Author: Emily Gravett
Publisher: Two Hoots
ISBN: 9781529052183
Category : Juvenile Fiction
Languages : en
Pages : 0

Book Description
This classic picture book with split pages that allow the visual jokes to unfold, celebrates its 15th anniversary in this new edition featuring extra content from the multi-award winning Emily Gravett.All the birds have eggs to hatch. All except Duck. But when Duck finds an egg of his own to look after he's delighted - it's the most beautiful egg in the whole world! But all the other birds think it's a very odd egg indeed - and everyone's in for a BIG surprise when it finally hatches.A beautifully illustrated and cleverly formatted tale with a surprise ending that's bound to ruffle some feathers!

The Book of Eggs

The Book of Eggs PDF Author: Mark E. Hauber
Publisher: University of Chicago Press
ISBN: 022605781X
Category : Science
Languages : en
Pages : 657

Book Description
From the brilliantly green and glossy eggs of the Elegant Crested Tinamou—said to be among the most beautiful in the world—to the small brown eggs of the house sparrow that makes its nest in a lamppost and the uniformly brown or white chickens’ eggs found by the dozen in any corner grocery, birds’ eggs have inspired countless biologists, ecologists, and ornithologists, as well as artists, from John James Audubon to the contemporary photographer Rosamond Purcell. For scientists, these vibrant vessels are the source of an array of interesting topics, from the factors responsible for egg coloration to the curious practice of “brood parasitism,” in which the eggs of cuckoos mimic those of other bird species in order to be cunningly concealed among the clutches of unsuspecting foster parents. The Book of Eggs introduces readers to eggs from six hundred species—some endangered or extinct—from around the world and housed mostly at Chicago’s Field Museum of Natural History. Organized by habitat and taxonomy, the entries include newly commissioned photographs that reproduce each egg in full color and at actual size, as well as distribution maps and drawings and descriptions of the birds and their nests where the eggs are kept warm. Birds’ eggs are some of the most colorful and variable natural products in the wild, and each entry is also accompanied by a brief description that includes evolutionary explanations for the wide variety of colors and patterns, from camouflage designed to protect against predation, to thermoregulatory adaptations, to adjustments for the circumstances of a particular habitat or season. Throughout the book are fascinating facts to pique the curiosity of binocular-toting birdwatchers and budding amateurs alike. Female mallards, for instance, invest more energy to produce larger eggs when faced with the genetic windfall of an attractive mate. Some seabirds, like the cliff-dwelling guillemot, have adapted to produce long, pointed eggs, whose uneven weight distribution prevents them from rolling off rocky ledges into the sea. A visually stunning and scientifically engaging guide to six hundred of the most intriguing eggs, from the pea-sized progeny of the smallest of hummingbirds to the eggs of the largest living bird, the ostrich, which can weigh up to five pounds, The Book of Eggs offers readers a rare, up-close look at these remarkable forms of animal life.

The Ostrich's Egg and the Orange

The Ostrich's Egg and the Orange PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

Book Description


The Ostrich Girl

The Ostrich Girl PDF Author: Ray Prather
Publisher: New York : Scribner
ISBN:
Category : Social Science
Languages : en
Pages : 40

Book Description
Goaded by the taunts of the village children, a youngster runs deep into the jungle searching for her real mother--an ostrich.

The Da Vinci Globe

The Da Vinci Globe PDF Author: Stefaan Missinne
Publisher: Cambridge Scholars Publishing
ISBN: 1527526143
Category : Art
Languages : en
Pages : 292

Book Description
A chance discovery at a distinguished London map fair in 2012 by a Belgian globe collector produced the most unique of finds: a distinct globe with mysterious images, such as old ships, sailors, a volcano, a hybrid monster, pentimenti, waving patterns, conic individualised mountains, curving rivers, vigorous coastal lines, chiaroscuro and an unresolved triangular anagram, which remains an enigma. The globe is hand-engraved in great detail on ostrich egg shells from Pavia by a left-handed Renaissance genius of unquestionable quality. It shows secret knowledge of the map world from the time of Columbus, Cabral, Amerigo Vespucci and Leonardo da Vinci. Central and North America are covered by a vast ocean. The da Vinci globe originates from Florence and dates from 1504. It marks the first time ever that the names of countries such as Brazil, Germania, Arabia and Judea have appeared on a globe. A Leonardo drawing for this globe, showing the coast of the New World and Africa has been discovered in the British Library. This book brings the reader through a fabulous journey of scholars, maps, riddles, rebuses, iconographic symbols and enigmatic phrases such as HIC SVNT DRACONES to illuminate the da Vinci globe. It details 500 years of mystery, fine scholarship and expert forensic testing at numerous material science laboratories the world over. The da Vinci globe now takes its rightful place, surpassing the Lenox globe, its copper-cast identical twin, as the most mysterious globe of our time. As such, this monograph is an essential text in Leonardo studies and in the history of cartography.

iPad All-in-One For Dummies®

iPad All-in-One For Dummies® PDF Author: Nancy C. Muir
Publisher: John Wiley & Sons
ISBN: 1118128273
Category : Computers
Languages : en
Pages : 595

Book Description
The ins and outs of all things iPad and iPad 2—in full color! Packed with the power of a MacBook, iPod touch, eReader, digital camera, portable game console and so much more, the iPad is an awesome device. And, the business world has certainly taken notice. The iPad is moving into the enterprise where power users and professionals alike are using the device to increase their productivity and work smarter at the office and on the go. Long-time For Dummies author Nancy Muir walks you through the latest functions, features, and capabilities of the iPad and iPad 2 in six easy-to-understand minibooks covering setting up and synching your iPad; using the iWork applications; printing from your iPad; managing your contacts and calendar; accessing your e-mail and the web; making FaceTime video calls; using your iPad as a presentation tool; and finding the best apps for travel, news, weather, finances, and business productivity. Six full-color minibooks include: iPad Basics, Just for Fun, iPad on the Go, Getting Productive with iWork, Using iPad to Get Organized, and Must-Have iPad Apps Covers the newest iPad 2 features including FaceTime, Photo Booth, Smart Covers, HD video and cameras, video mirroring, and HDMI output Shows you how to use iWork and other productivity apps to dress up your documents, create stellar spreadsheets, add pizzazz to your presentations, and maintain your schedule on the run Walks you through connecting with WiFi and 3G; using Maps for directions and places to stay when you're away from the office; keeping in touch with e-mail and social networking; and using your iPad as a remote desktop while you're on the road Includes information on having a little fun, too, with tips on loading your iPad or iPad 2 with music, movies, photos, e-books, games, apps, and more Filled with no-nonsense basics and slick and savvy tips, iPad All-in-One For Dummies, Second Edition is the best accessory you'll ever buy for your iPad or iPad 2!

The Most Perfect Thing

The Most Perfect Thing PDF Author: Tim Birkhead
Publisher: Bloomsbury Publishing USA
ISBN: 1632863715
Category : Nature
Languages : en
Pages : 305

Book Description
A bird's egg is a nearly perfect survival capsule--an external womb--and one of natural selection's most wonderful creations. Shortlisted for the Royal Society Insight Investment Science Book Prize 2016.One of Forbes' Best Books About Birds and Birding in 2016. Renowned ornithologist Tim Birkhead opens this gripping story as a female guillemot chick hatches, already carrying her full quota of tiny eggs within her undeveloped ovary. As she grows into adulthood, only a few of her eggs mature, are released into the oviduct, and are fertilized by sperm stored from copulation that took place days or weeks earlier. Within a matter of hours, the fragile yolk is surrounded by albumen and the whole is gradually encased within a turquoise jewel of a shell. Soon the fully formed egg is expelled onto a rocky ledge, where it will be incubated for four weeks before a chick emerges and the life cycle begins again. THE MOST PERFECT THING is about how eggs in general are made, fertilized, developed, and hatched. Birkhead uses birds' eggs as wondrous portals into natural history, enlivened by the stories of naturalists and scientists, including Birkhead and his students, whose discoveries have advanced current scientific knowledge of reproduction.