Author: Douglas J Alford
Publisher: Mfg Application Konsulting Engr
ISBN:
Category : Foreign Language Study
Languages : es
Pages : 36
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Book Description
El primer vuelo de Robin”es un cuento de querer volar pero tener miedo de tratar. Robin sobrevence su miedo y aprende a volar. Esta fábula nos ayuda a encontrar nuestras propias alas. “Robin’s First Flight” is the story of wanting to fly but being afraid to try. Robin overcomes the fear and learns to soar! This fable helps each of us find our own wings.
Author: RAPPOLE JOHN H.
Publisher: Smithsonian Books (DC)
ISBN:
Category : Nature
Languages : en
Pages : 296
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Book Description
Incorporating new information on migratory birds, most gathered within the past decade, this comprehensive synthesis is the first book to explore migration principally from the perspective of the tropical, or nonbreeding, portion of the migrant life cycle.
Author: Francesco di Castri
Publisher: Springer Science & Business Media
ISBN: 3642655203
Category : Science
Languages : en
Pages : 410
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Book Description
No other disjunct pieces of land present such striking similarities as the widely sepa 1 rated regions with a mediterranean type of climate, that is, the territories fringing the Mediterranean Sea, California, Central Chile and the southernmost strips of South Mrica and Australia. Similarities are not confined to climatic trends, but are also reflected in the physiognomy ofthe vegetation, in land use patterns and frequently in the general appearance of the landscape. The very close similarities in agricultural practices and sometimes also in rural settlements are dependent on the climatic and edaphic analogies, as well as on a certain commonality in qdtural history. This is certainly true for the Mediterranean Sea basin which in many ways represents a sort of ecological-cultural unit; this is also valid for CaUfornia and Chile, which were both settled by Spaniards and which showed periods of vigorous commercial and cultural interchanges as during the California gold rush. One other general feature is the massive interchange of cultivated and weed species of plants that has occurred between the five areas of the world that have a mediterranean-type climate, with the Mediterranean basin region itself as a major source. In spite of their limited territorial extension, probably no other parts of the world have played a more fundamental role in the history of mankind. Phoenician, Etruscan, Hellenic, Jewish, Roman, Christian andArab civilizations, among others,haveshapedmanyofman's present attitudes, including his position and perception vis-a-vis nature.
Author: P. Berthold
Publisher: Springer Science & Business Media
ISBN: 9780412363801
Category : Science
Languages : en
Pages : 370
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Book Description
Considers all aspects of research since experimentation began on the subject in 1925
Author: Christopher A. Lepczyk
Publisher: Univ of California Press
ISBN: 0520953894
Category : Science
Languages : en
Pages : 375
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Book Description
Now that more than half of the world’s population lives in cities, the study of birds in urban ecosystems has emerged at the forefront of ornithological research. An international team of leading researchers in urban bird ecology and conservation from across Europe and North America presents the state of this diverse field, addressing classic questions while proposing new directions for further study. Areas of particular focus include the processes underlying patterns of species shifts along urban-rural gradients, the demography of urban birds and the role of citizen science, and human-avian interaction in urban areas. This important reference fills a crucial need for scientists, planners, and managers of urban spaces and all those interested in the study and conservation of birds in the world’s expanding metropolises.
Author: Anna Sewell
Publisher:
ISBN: 9780861122646
Category : Horses
Languages : en
Pages : 80
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Book Description
A horse of nineteenth century England tells his life story from his early home through many masters and experiences, both good and bad.
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: Paula L. Enriquez
Publisher: Springer
ISBN: 3319571087
Category : Science
Languages : en
Pages : 670
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Book Description
This book presents a comprehensive biological and ecological information about owls in the neotropic area. In addition the book covers topics such as threats and conservation strategies for these nocturnal birds of prey from 18 Neotropical countries. Owls are a good example of diversification processes and have developed evolutionary characteristics themselves. These species are found almost everywhere in the world but most of them are distributed in tropical areas and about a third of them live in the Neotropics. This biogeographic region has a high biodiversity and even share lineages of species from other continents because at some point all were part of Pangea. Although we still have much to know and understand about this diverse, scarcely studied and threatened group this work aims to be a precedent for future and further research on the subject.
Author: Quentin Flynn
Publisher: Nelson Thornes
ISBN: 9780748758586
Category : Readers (Elementary)
Languages : en
Pages : 38
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Book Description
Author: Mary Dodson Wade
Publisher: Enslow Publishing, LLC
ISBN: 1464605122
Category : Juvenile Nonfiction
Languages : en
Pages : 14
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Book Description
Author Mary Dodson Wade explores the life of Theodore Roosevelt, the 26th President of the United States, in this biography for young readers. Rough Rider, governor, rancher, vice-president, and president, Roosevelt created some of the first national parks and the Panama Canal. He was truly amazing.
