Aquatic and Wetland Plants of Northeastern North America, C. Barre Hellquist, Garrett E. Crow
Автор: Beadle David, Leckie Seabrooke Название: Peterson Field Guide to Moths of Northeastern North America ISBN: 0547238487 ISBN-13(EAN): 9780547238487 Издательство: Неизвестно Рейтинг: Цена: 4483.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
A field guide to the most common moth species in northeastern North America.
This useful manual provides a means for easy identification of the native and cultivated conifers of northeastern North America. The territory covered is roughly eastern Canada and the northeastern fourth of the United States, from Maine south to the southern border of Pennsylvania, west to Kansas, and north to North Dakota. Because it includes so many cultivated species, the book treats the great majority of conifers found in the western United States and Europe as well. Twenty-seven genera and 130 species are included.
This useful manual provides a means for easy identification of the native and cultivated conifers of northeastern North America. The territory covered is roughly eastern Canada and the northeastern fourth of the United States, from Maine south to the southern border of Pennsylvania, west to Kansas, and north to North Dakota. Because it includes so many cultivated species, the book treats the great majority of conifers found in the western United States and Europe as well. Twenty-seven genera and 130 species are included.
Автор: Barbara L. Peckarsky, Don J. Conklin, Jr., Marjory Название: Freshwater Macroinvertebrates of Northeastern North America ISBN: 0801420768 ISBN-13(EAN): 9780801420764 Издательство: Wiley EDC Рейтинг: Цена: 18533.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Автор: George P. Nicholas Название: Holocene Human Ecology in Northeastern North America ISBN: 1489923780 ISBN-13(EAN): 9781489923783 Издательство: Springer Рейтинг: Цена: 13974.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Students of human behavior have always been interested in the relationship between human populations and their environment.
Автор: George P. Nicholas Название: Holocene Human Ecology in Northeastern North America ISBN: 0306428695 ISBN-13(EAN): 9780306428692 Издательство: Springer Рейтинг: Цена: 23058.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Students of human behavior have always been interested in the relationship between human populations and their environment.
Описание: This book has been considered by academicians and scholars of great significance and value to literature. This forms a part of the knowledge base for future generations. So that the book is never forgotten we have represented this book in a print format as the same form as it was originally first published. Hence any marks or annotations seen are left intentionally to preserve its true nature.
Автор: Skevington Jeffrey H., Locke Michelle M., Young Andrew D. Название: Field Guide to the Flower Flies of Northeastern North America ISBN: 0691189404 ISBN-13(EAN): 9780691189406 Издательство: Wiley Рейтинг: Цена: 3485.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание:
A groundbreaking guide to flower flies in North America
This is the first comprehensive field guide to the flower flies (also known as hover flies) of northeastern North America. Flower flies are, along with bees, our most important pollinators. Found in a varied range of habitats, from backyard gardens to aquatic ecosystems, these flies are often overlooked because many of their species mimic bees or wasps. Despite this, many species are distinctive and even subtly differentiated species can be accurately identified. This handy and informative guide teaches you how.
With more than 3,000 color photographs and 400 maps, this guide covers all 416 species of flower flies that occur north of Tennessee and east of the Dakotas, including the high Arctic and Greenland. Each species account provides information on size, identification, abundance, and flight time, along with notes on behavior, classification, hybridization, habitats, larvae, and more.
Summarizing the current scientific understanding of our flower fly fauna, this is an indispensable resource for anyone, amateur naturalist or scientist, interested in discovering the beauty of these insects.
- 3000+ color photos (field and museum shots)
- Multiple images per species, with arrows highlighting key field marks
- Grayscale images showing the actual size of the insect
- Range maps for each species
- Information on size, identification features, abundance, flight times, and more
Graham Powell has written an insightful and beautifully illustrated book on the lives of conifers. Everyone who works with, studies, and loves these trees will derive both knowledge and pleasure from learning about them in great detail. I have always had a special fondness for the conifers and their mystical and inspiring representatives like the massive redwoods and the bleak denizens of the boreal forests, the spruces. I conclude that Powell's book does them their well-deserved justice. -- Graeme Berlin, Yale University School of Forestry and Environmental Studies
A comparative account of the coniferous trees indigenous to Northeastern North America.
Extensively illustrated with full-color photographs, diagrams, and drawings by the author, Graham R. Powell's Lives of Conifers examines the complex and fascinating life cycles of the 12 coniferous trees that grow naturally in northeastern North America on both sides of the Canada-U.S. border.
Tracing their development from seeds and seedlings, to saplings, through the pole stage to maturity, old age, and death, the book is designed to provide a comparison of each species at each stage of life, thus aiding in the recognition and identification of species at all stages of their existence. It includes descriptions of developmental processes and how they differ among the species.
The species covered in the book are:
balsam fir
red pine
eastern hemlock
black spruce
tamarack larch
red spruce
eastern white pine
white spruce
jack pine
eastern juniper
pitch pine
eastern thuja.
The book is based almost entirely on what is visible to the careful observer in the forest, and includes only the parts of trees that can be seen above ground. Lives of Conifers will appeal to forest scientists, forestry students, foresters, forest technologists, botanists, horticulturists, arborists, naturalists, and general readers interested in knowing more about their natural surroundings.
Автор: Sergei A. Subbotin; John J. Chitambar Название: Plant Parasitic Nematodes in Sustainable Agriculture of North America ISBN: 3319995871 ISBN-13(EAN): 9783319995878 Издательство: Springer Рейтинг: Цена: 23757.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Plant-parasitic nematodes are recognized as one of the greatest threats to crop production throughout the world. Estimated annual crop losses of $8 billion in the United States and $78 billion worldwide are attributed to plant parasitic nematodes. Plant parasitic nematodes not only cause damage individually but form disease-complexes with other microorganisms thereby increasing crop loss. Nematode diseases of crops are difficult to control because of their insidious nature and lack of specific diagnostic symptoms which closely resemble those caused by other plant pathogens and abiotic diseases. Future developments of sustainable management systems for preventing major economical agricultural losses due to nematodes is focused on strategies that limit production costs, enhance crop yields, and protect the environment. This book presents a first compendium and overview for nematode problems and their management across North America. Each chapter provides essential information on the occurrence and distribution of plant parasitic nematodes, their major crop hosts, impact on crop production and sustainable management strategies for each region of the continent including, Canada, Mexico and all states of the USA. For each region, a thematic overview of changes in crop production affected by plant parasitic nematodes and their management strategies over time will provide invaluable information on the important role of plant parasitic nematodes in sustainable agriculture.
Описание: This innovative interdisciplinary study offers a comprehensive analysis of the French, Dutch and English colonization of northeastern North America during the early and middle decades of the seventeenth century. It is the first book to pay serious attention to the European economic and political factors which promoted colonization, and it argues that the prime determinant was the uneven development of agricultural systems in western Europe.
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