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Author: Tony D. Williams
Publisher: Princeton University Press
ISBN: 0691139822
Category : Medical
Languages : en
Pages : 388
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Book Description
Physiological Adaptations for Breeding in Birds is the most current and comprehensive account of research on avian reproduction. It develops two unique themes: the consideration of female avian reproductive physiology and ecology, and an emphasis on individual variation in life-history traits. Tony Williams investigates the physiological, metabolic, energetic, and hormonal mechanisms that underpin individual variation in the key female-specific reproductive traits and the trade-offs between these traits that determine variation in fitness. The core of the book deals with the avian reproductive cycle, from seasonal gonadal development, through egg laying and incubation, to chick rearing. Reproduction is considered in the context of the annual cycle and through an individual's entire life history. The book focuses on timing of breeding, clutch size, egg size and egg quality, and parental care. It also provides a primer on female reproductive physiology and considers trade-offs and carryover effects between reproduction and other life-history stages. In each chapter, Williams describes individual variation in the trait of interest and the evolutionary context for trait variation. He argues that there is only a rudimentary, and in some cases nonexistent, understanding of the physiological mechanisms that underpin individual variation in the major reproductive life-history traits, and that research efforts should refocus on these key unresolved problems by incorporating detailed physiological studies into existing long-term population studies, generating a new synthesis of physiology, ecology, and evolutionary biology.
Author: Tony D. Williams
Publisher: Princeton University Press
ISBN: 0691139822
Category : Medical
Languages : en
Pages : 388
Get Book Here
Book Description
Physiological Adaptations for Breeding in Birds is the most current and comprehensive account of research on avian reproduction. It develops two unique themes: the consideration of female avian reproductive physiology and ecology, and an emphasis on individual variation in life-history traits. Tony Williams investigates the physiological, metabolic, energetic, and hormonal mechanisms that underpin individual variation in the key female-specific reproductive traits and the trade-offs between these traits that determine variation in fitness. The core of the book deals with the avian reproductive cycle, from seasonal gonadal development, through egg laying and incubation, to chick rearing. Reproduction is considered in the context of the annual cycle and through an individual's entire life history. The book focuses on timing of breeding, clutch size, egg size and egg quality, and parental care. It also provides a primer on female reproductive physiology and considers trade-offs and carryover effects between reproduction and other life-history stages. In each chapter, Williams describes individual variation in the trait of interest and the evolutionary context for trait variation. He argues that there is only a rudimentary, and in some cases nonexistent, understanding of the physiological mechanisms that underpin individual variation in the major reproductive life-history traits, and that research efforts should refocus on these key unresolved problems by incorporating detailed physiological studies into existing long-term population studies, generating a new synthesis of physiology, ecology, and evolutionary biology.
Author: Tony D. Williams
Publisher: Princeton University Press
ISBN: 1400842794
Category : Science
Languages : en
Pages : 389
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Book Description
Physiological Adaptations for Breeding in Birds is the most current and comprehensive account of research on avian reproduction. It develops two unique themes: the consideration of female avian reproductive physiology and ecology, and an emphasis on individual variation in life-history traits. Tony Williams investigates the physiological, metabolic, energetic, and hormonal mechanisms that underpin individual variation in the key female-specific reproductive traits and the trade-offs between these traits that determine variation in fitness. The core of the book deals with the avian reproductive cycle, from seasonal gonadal development, through egg laying and incubation, to chick rearing. Reproduction is considered in the context of the annual cycle and through an individual's entire life history. The book focuses on timing of breeding, clutch size, egg size and egg quality, and parental care. It also provides a primer on female reproductive physiology and considers trade-offs and carryover effects between reproduction and other life-history stages. In each chapter, Williams describes individual variation in the trait of interest and the evolutionary context for trait variation. He argues that there is only a rudimentary, and in some cases nonexistent, understanding of the physiological mechanisms that underpin individual variation in the major reproductive life-history traits, and that research efforts should refocus on these key unresolved problems by incorporating detailed physiological studies into existing long-term population studies, generating a new synthesis of physiology, ecology, and evolutionary biology.
Author: Peter Berthold
Publisher: Springer Science & Business Media
ISBN: 9783540434085
Category : Science
Languages : en
Pages : 636
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Book Description
The reader of this comprehensive presentation benefits from an outstanding overview of all aspects of the fascinating phenomenon of bird migration. The book is written by leading experts from around the world. The text summarizes reviews and discussions of the most recent hypotheses. In doing so, it covers the entire research field from phenomenology through to ecology, physiology, control mechanisms, orientation, evolutionary aspects and conservation measures. It also examines the most modern methodological approaches including, satellite trakcking, molecular techniques or stable isotope investigations and envisages forthcoming developments in the course of global warming.
Author: Tony D. Williams
Publisher: Princeton University Press
ISBN: 0691200165
Category : Nature
Languages : en
Pages : 0
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Book Description
"There are some 10,000 bird species in existence today, occupying every continent and virtually every habitat on Earth. The variety of bird species is truly astounding, from the tiny bee hummingbird to the large flightless ostrich, making birds one of the most diverse and successful animal groups on the planet. Taking you inside the extraordinary world of birds, What Is a Bird? explores all aspects of these remarkable creatures, providing an up-close look at their morphology, unique internal anatomy and physiology, fascinating and varied behavior, and ecology. It features hundreds of color illustrations and draws on a broad range of examples, from the familiar backyard sparrow to the most exotic birds of paradise. A must-have book for birders and armchair naturalists, What Is a Bird? is a celebration of the rich complexity of bird life"--Dust jacket.
Author: Eberhard Gwinner
Publisher: Springer Science & Business Media
ISBN: 3642745423
Category : Science
Languages : en
Pages : 436
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Book Description
E. GWINNER! The phenomenon of bird migration with its large scale dimensions has attracted the attention of naturalists for centuries. Worldwide billions of birds leave their breeding grounds every autumn to migrate to areas with seasonally more favor able conditions. Many of these migrants travel only over a few hundred kilo meters but others cover distances equivalent to the circumference of the earth. Among these long-distance migrants are several billion birds that invade Africa every autumn from their West and Central Palaearctic breeding areas. In the Americas and in Asia the scope of bird migration is of a similar magnitude. Just as impressive as the numbers of birds are their achievements. They have to cope with the enormous energetic costs of long-distance flying. particularly while crossing oceans and deserts that do not allow replenishment of depleted fat reserves. They have to appropriately time the onset and end of migrations. both on a daily and annual basis. And finally. they have to orient their migratory movements in space to reach their species- or population-specific wintering and breeding grounds, irrespective of the variable climatic conditions along their migratory routes.
Author: Nicholas Pound
Publisher: Taylor & Francis
ISBN: 9780387280363
Category : Health & Fitness
Languages : en
Pages : 322
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Book Description
This volume presents the intricate ways in which sperm compete to fertilize eggs and how this has prompted reinterpretations of breeding behavior from a biological perspective. Sperm Competition in Humans: Classic and Contemporary Readings provides a theoretical framework for the study of sperm competition and also discusses the roles of females and the relationships between paternal care in sperm competition. The chapters focus on everything from evolutionary biology to taxonomic development.
Author: Tomohiro Sasanami
Publisher: Springer
ISBN: 9811039755
Category : Science
Languages : en
Pages : 214
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Book Description
This book provides everything from basic knowledge to the recent understandings of avian reproductive physiology, covering many unique aspects. It will inspire avian biologists as well as researchers in varied fields and will offer important steps towards better fertilization success in birds.In spite of the recent remarkable developments in modern technology, a comprehensive understanding of the reproductive mechanisms is still far in the future due to the diverse reproductive tactics in vertebrates. Birds have highly refined reproductive strategies and some of those strategies are unique to birds. However, together with ongoing progress of the genome analysis of birds and the crying need for further increase in meat and egg production, research on avian reproduction is now accelerating and becoming more important.With contributions by leading scientists, the book explains avian primordial germ cells; the sex-determining mechanism; reproductive endocrinology and immunology; sperm, egg, and egg coat; sperm–egg interaction; polyspermic fertilization; seasonal reproduction; social triggers; hormonal and behavioral changes; broodiness; oviductal sperm storage; and biotechnology. This book is recommended for all researchers and students who are interested in birds or reproduction.
Author: Julie Murray
Publisher: ABDO
ISBN: 1680796178
Category : Juvenile Nonfiction
Languages : en
Pages : 27
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Book Description
Kids will love reading all about penguins and strengthening their reading skills. Simple text explaining what penguins look like, where they live, and what they like to eat will be alongside colorful full-bleed images. This title is complete with bolded glossary words, a picture glossary, and a More Kinds of Penguins page, which will show a few different penguin species. Aligned to Common Core Standards and correlated to state standards. Abdo Kids Junior is an imprint of Abdo Kids, a division of ABDO.
Author: Edward H. Burtt (Jr.)
Publisher:
ISBN:
Category : Animal pigments
Languages : en
Pages : 140
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Book Description
Author: Donald S. Farner
Publisher: Elsevier
ISBN: 1483270009
Category : Science
Languages : en
Pages : 607
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Book Description
Avian Biology is a collection of papers that deals with biological aspects of birds such as their classification and habitat behavior. One paper reviews how birds are classified through practical systematics, study of fossils, and some of the problems encountered in the arrangement of major groups. Another paper discusses the origin and evolution of birds from their reptilian predecessors to their current evolutionary rates. Evolutionary rates vary depending on access to new habitats; if the environment is static, evolutionary rates can also slow down. One author discusses the inter-relations of sea birds with their marine environment, including coastal areas and the biological properties of the surface water. Another author describes the biology of desert birds relating to nomadism behavior and physical adaptations especially to the arid environment. The author also describes the cooling mechanism of these desert birds. Another paper evaluates the ecological aspect of behavior that includes foraging, habitat selection, mating, and flocking cohesion. Avian biologists, zoologists, and readers who have a general interest in birds will find this book useful.
