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Author: James George Needham
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 966
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Book Description
Author: James George Needham
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 966
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: James G Needham
Publisher:
ISBN: 9789354020728
Category :
Languages : en
Pages : 394
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Book Description
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.
Author: Kenneth J. Tennessen
Publisher: Springer
ISBN: 3319977768
Category : Science
Languages : en
Pages : 627
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Book Description
This monograph is the first of its kind devoted entirely to the dragonfly nymphs of North America north of Mexico, the focus being accurate identification of the 330 species of Anisoptera that occur in the region. Nymphal external morphology is described and illustrated in detail, and all terms needed to navigate the dichotomous keys are defined. Species are tabulated with references that provide the most detailed, accurate descriptions for each; species that are inadequately described are so indicated. The key separating the seven families in the region contains several new characters. The families are then covered separately: Aeshnidae (13 genera), Gomphidae (17 genera), Petaluridae (2 genera), Cordulegastridae (2 genera), Macromiidae (2 genera), Corduliidae (7 genera), and Libellulidae (29 genera). Each family is further characterized, followed by a generic key. A drawing of the habitus and diagnostic details for each genus are provided, along with additional diagnostic remarks and notes on habitat and life cycle; for each genus, a map shows its geographic distribution in North America. Full-grown nymphs of all known species of each genus are keyed and diagnosed; characters that apply to earlier instars are noted. Morphological variation in character states was analyzed in order to assess the reliability of previously utilized characters and to discover new characters. Most of the characters used to distinguish all levels of taxa are illustrated; a total of 702 figures, comprising 1,800 original drawings, along with selected photographs where necessary for clarity, accompany the keys. Measurements of total length, head width, and other variables for each species are provided in tables. Difficulties with past keys and descriptions, including errors, omissions and other shortcomings, are addressed. The importance of nymph characters in helping solve generic and specific distinctions and their role in phylogenetic studies is emphasized. Methods for collecting, rearing, and preserving dragonfly nymphs and exuviae are presented. The final chapter discusses research opportunities on North American Anisoptera nymphs, including taxonomic needs, studies on structure and function, life history and microhabitat, water quality indices and conservation efforts. The habitus drawings of all genera are arranged according to family in five plates (Appendix I); although the book is intended as a lab manual, these plates conveniently allow for comparison based on nymph shape making field identification to genus possible in many cases. Appendix II contains a brief history of dragonfly nymph studies in North America. A glossary and an index to scientific names are included.
Author: Sidney W. Dunkle
Publisher: Oxford University Press
ISBN: 0199727295
Category : Nature
Languages : en
Pages : 369
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Book Description
Dragonfly watching is fast becoming an enjoyable and exciting hobby for many of those who love butterfly watching. This book picks up on that trend and brings it to the reader in an attractive and accessible format. A new addition to Oxford's acclaimed Butterflies through Binoculars series of field guides, Dragonflies through Binoculars allows for quick and easy identification of all the 300-plus species of dragonflies that have been found in the United States and Canada. In these well-illustrated pages, Sidney W. Dunkle answers any query the beginner or expert might have on the subject of dragonfly-watching on this continent--what kind of binoculars to buy, where to start looking for dragonflies, how to photograph these striking creatures, which clubs or societies to join, and so forth. Other important features for this handy field guide include detailed accounts of every species mentioned, useful information on habitats, explanations of mating rituals, full-color photographs of most of the species described, and range maps.
Author: J. G. Needham
Publisher: Univ of California Press
ISBN:
Category :
Languages : en
Pages : 628
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Book Description
Field studies; Procedure; Systematic classification.
Author: James George Needham
Publisher: Forgotten Books
ISBN: 9780364942819
Category : Science
Languages : en
Pages : 392
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Book Description
Excerpt from A Handbook of the Dragonflies of North America Owing to the insistence of other duties the completion of this book has been long delayed. Many of the pupils of the senior author have contributed materials for it. It is no longer possible to name them all, but the help of all is gratefully acknowledged. In the final putting together of these materials there are those who have aided so well and so generously as to deserve special mention. Mrs. H. E. Seemann assisted in the preparation of materials and drawings. Miss Elsie Broughton helped with the completion of both drawings and manuscript; and most of the drawings of genitalia were made by Mr. 0. Francis Byers. Whole sections of the text have been written by the two last named. Dr. P. P. Calvert has very kindly read the galley proofs, and has helped with useful alterations and amend ments. He has enabled us to eliminate some errors, but for such as may remain he is in no way responsible. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: Hortense Butler Heywood
Publisher: Nabu Press
ISBN: 9781295708871
Category :
Languages : en
Pages : 396
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Book Description
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
Author: Dennis Paulson
Publisher: Princeton University Press
ISBN: 0691122814
Category : Nature
Languages : en
Pages : 537
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Book Description
Dragonflies and Damselflies of the West is the first fully illustrated field guide to all 348 species of dragonflies and damselflies in western North America. Dragonflies and damselflies are large, stunningly beautiful insects, as readily observable as birds and butterflies. This unique guide makes identifying them easy--its compact size and user-friendly design make it the only guide you need in the field. Every species is generously illustrated with full-color photographs and a distribution map, and structural features are illustrated where they aid in-hand identification. Detailed species accounts include information on size, distribution, flight season, similar species, habitat, and natural history. Dennis Paulson's introduction provides an essential primer on the biology, natural history, and conservation of these important and fascinating insects, along with helpful tips on how to observe and photograph them. Dragonflies and Damselflies of the West is the field guide naturalists, conservationists, and dragonfly enthusiasts have been waiting for. Covers all 348 western species in detail Features a wealth of color photographs Provides a color distribution map for every species Includes helpful identification tips Serves as an essential introduction to dragonflies and their natural history
Author: Kurt Mead
Publisher: Kollath-Stensaas Publishing
ISBN: 9781936571116
Category : Nature
Languages : en
Pages : 276
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Book Description
Learn about all 102 species of dragonflies in Minnesota, Wisconsin, Michigan, and Ontario in this third edition of the best-selling Dragonflies of the North Woods, which won a National Outdoor Book Award.
