Hymenoptera: Formicoidea, Vespoidea and Sphecoidea PDF Download

Author: Taylor
Publisher: BRILL
ISBN: 900462662X
Category : Science
Languages : en
Pages : 387

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Author: Steven Falk
Publisher: Bloomsbury Publishing
ISBN: 1472970373
Category : Nature
Languages : en
Pages : 935

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Book Description
Bees are a fascinating and indispensable group of insects, but many species are in decline, and efforts to help determine distributions and changes in abundance have to date been compromised by a serious lack of identification resources. This book is from author Steven Falk, who is a professional naturalist and conservationist with over forty years' experience of working with bees. It is a comprehensive introduction to bee classification, ecology, field techniques and recording, a full glossary, and information on how to separate the sexes and distinguish bees from other insects. Also included are introductions to families and genera, describing key characters and life histories, as well as detailed species descriptions covering field and microscopic characters, similar species, variants, flight season, habitat, flowers visited, nesting habits, status & distribution, and parasites & associates. A series of innovative illustrated keys to genera and species are designed to guide the user step by step through the identification process. The book is illustrated with over 1,000 colour and black and white artworks by Richard Lewington, one of Europe's leading insect artists. It also includes stunning photographs of living insects as seen in the wild and 234 up-to-date distribution maps. This eagerly anticipated new addition to the highly acclaimed British Wildlife Field Guides series will unravel the complexities of identification, and is designed to cater for people new to the bee world as well as to more experienced recorders who wish to identify every species accurately. It provides the latest information on the identification, ecology, status and distribution of all 275 species of bee in Britain, Ireland and the Channel Islands.

Author: Sarah A. Corbet
Publisher: Pelagic Publishing
ISBN: 9781784270339
Category : Nature
Languages : en
Pages : 68

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Book Description
This Naturalists' Handbook book covers the natural history, biology and identification of the hoverfly. It will enable anyone to identify the most common hoverflies of the British Isles, providing practical guidance for methods of identification, advice on techniques and approaches to research.

Author: Canada. Agriculture Canada. Research Branch
Publisher: Canadian Government Publishing
ISBN:
Category : Science
Languages : en
Pages : 688

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Book Description
This publication is the result of a course on identification of Hymenoptera given three times since 1985 at the Centre for Land and Biological Resources Research. The considerable interest in these courses indicated the need for a comprehensive identification guide to all extant families of Hymenoptera. The main emphasis is on family identification using the keys, which are complemented by family sketches. The sketches include a taxonomic diagnosis to supplement the keys, a summary of the biology, the size and distribution, and important literature references.

Author: Peter Charles Barnard
Publisher: Cambridge University Press
ISBN: 9780521632416
Category : Nature
Languages : en
Pages : 376

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Book Description
Essential guide to the specialist literature for the identification of British insects and arachnids.

Author: Willemstein
Publisher: BRILL
ISBN: 900462810X
Category : Science
Languages : en
Pages : 439

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Book Description

Author: Donald Joyce Borror
Publisher: Houghton Mifflin Harcourt
ISBN: 9780395911709
Category : Nature
Languages : en
Pages : 460

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Book Description
Text and pictures combine to present 579 insect families.

Author: Vladimir E. Gokhman
Publisher: Springer Science & Business Media
ISBN: 1402098073
Category : Science
Languages : en
Pages : 192

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Book Description
Not so long ago, karyology was considered a vanguard biological discipline, which could solve nearly all problems of systematics and phylogenetics. We liked to believe in the bright future, in a magician who will appear like a Jack-in-the-box and reveal the truth to us. However, excessive hopes related to the chromosomal study came true only in part. In the meantime, new candidates claimed the place of the magician, i. e. phenetics succeeded by cladistics and now by molecular methods in systematics and phylogeny. Nevertheless, it becomes progressively more ob- ous nowadays that cladistics is just a bright envelope for the fairly primitive and theoretically vulnerable approach that deprives living organisms and their groups of the traces of integrity and reduces them to the plain sum of characters. Modern molecular techniques look more perceptive and may yield more reliable results, although the details are sometimes embarrassing, and comparison with the fossil record does not necessarily reveal their superiority over cladistics. These methods are accessible by research teams with massive funding and good equipment and this strongly decreases the range and diversity of the material studied. However, classi?cations are often created by individual systematists with the restricted access to molecular methods. In this context, karyological techniques are in the preferable position, although they certainly do not provide direct and immaculate markers of taxonomic and p- logenetic relationships: chromosomal study is a morphological method with all its advantages and drawbacks.

Author:
Publisher: Academic Press
ISBN: 0123813646
Category : Science
Languages : en
Pages : 455

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Book Description
This thematic volume represents an important and exciting benchmark in the study of food webs and other ecological networks, synthesizing and showcasing current research and highlighting future directions for the development of the field. - Updates and informs the reader on the latest research findings - Written by leading experts in the field - Highlights areas for future investigation

Author: United States. Agricultural Research Service
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 92

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Book Description
The purpose of this report is to give the location, size, history, and significance of the 13 major ARS-supported collections.