Aphids as Crop Pests

Author: Helmut Fritz Van Emden,Richard Harrington

Publisher: CABI

ISBN: 1845932021

Category: Agricultural pests

Page: 717

View: 1880

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Aphids represent one of the world's major insect pests, causing serious economic damage to a range of temperate and tropical crops. These range from grain crops and brassicas to potato, cotton, vegetable and fruit crops. This book provides a definitive reference volume on the biology of aphids, their pest status, and how to control them. It includes approximately 30 specially commissioned chapters from world experts, principally from Europe and North America. Topics covered range from host selection and feeding to movement and dispersal, and from insecticide resistance to chemical, cultural and biological control methods. There are also several case study chapters, on integrated pest management in specific crops.
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Ecology and Conservation of Butterflies

Author: A.S. Pullin

Publisher: Springer Science & Business Media

ISBN: 9401112827

Category: Science

Page: 363

View: 3031

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This book was conceived to mark the Silver Jubilee of the British Butterfly Conservation Society. Interest in the conservation of butterflies has increased so rapidly that it is difficult to relate to the situation 25 years ago. Butterflies were on the decline in Britain, Europe and elsewhere but we lacked data on the extent of the decline and the underlying reasons, leaving us unable to implement effective conservation measures. An early recognition of the plight of British butterflies and moths led to the foundation of the society by a small group of conservationists in 1968. Today the society has over 10000 members, owns a number of reserves and sponsors research, conservation and monitoring activities at the local and national level. As part of the Silver Jubilee celebrations an international symposium was held at Keele University in September 1993 entitled 'Ecology and Conservation of Butterflies'. This symposium clearly showed how much important work has been done in recent years and also gave me the impression that the subject had reached a watershed. This was not because the decline of butterflies has stopped or even slowed down, far from it, the threat to our butterflies continues to increase from habitat destruction and intensification of land use. The watershed is in our understanding of the relationship between butterflies and their habitat.
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European Wood-pastures in Transition

A Social-ecological Approach

Author: Tibor Hartel,Tobias Plieninger

Publisher: Routledge

ISBN: 1135139113

Category: Nature

Page: 322

View: 2149

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Wood-pastures are important elements of European cultural identity and have an exceptional ecological value, yet they are in decline all over Europe. The structure of wood-pastures is strongly influenced by grazing and multiple other land uses and by local and regional environmental conditions. This book examines the diverse expressions of wood-pastures across Europe. It provides a new perspective, using a social-ecological framework to explore social and ecological values, governing institutions, threats and conservation approaches. It explores the major drivers of decline, which are shown to be related to accelerated cultural, institutional and developmental changes occurring across Europe over the past century. Case studies are included from North-Western, Southern, and Eastern Europe. Written by renowned scholars and conservationists, the book contributes to developing better, locally adapted conservation policies and management approaches for wood-pastures.
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Bringing Fossils to Life

An Introduction to Paleobiology

Author: Donald R. Prothero

Publisher: Columbia University Press

ISBN: 0231536909

Category: Science

Page: 672

View: 2348

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One of the leading textbooks in its field, Bringing Fossils to Life applies paleobiological principles to the fossil record while detailing the evolutionary history of major plant and animal phyla. It incorporates current research from biology, ecology, and population genetics, bridging the gap between purely theoretical paleobiological textbooks and those that describe only invertebrate paleobiology and that emphasize cataloguing live organisms instead of dead objects. For this third edition Donald R. Prothero has revised the art and research throughout, expanding the coverage of invertebrates and adding a discussion of new methodologies and a chapter on the origin and early evolution of life.
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Call of Nature

The Secret Life of Dung

Author: Richard Jones

Publisher: N.A

ISBN: 9781784271053

Category:

Page: 280

View: 8070

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Journey through the digestive systems of humans, farm and wild animals, and meet some of nature's ultimate recyclers as they eat, breed in and compete for dung. The fall of bodily waste onto the ground is the start of a race against the clock as a multitude of dung-feeders and scavengers consume this rich food source. From the enigmatic dung-rolling beetles to bat guano and giant elephant droppings, dung creates a miniature ecosystem to be explored by the aspiring dung watcher. The author completes the book with an identification guide to dung itself, so that you can identify the animal that left it behind. Pellets or pats? Scats, spraints, frass, guano, spoor - learn your way around different species' droppings. There's also a dung-feeder's identification guide that includes the species you're most likely to encounter on an exploration of the dung heap.
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Australian Ladybird Beetles (Coleoptera: Coccinellidae)

Their Biology and Classification

Author: Adam Slipinski

Publisher: CSIRO PUBLISHING

ISBN: 0643109927

Category: Science

Page: 304

View: 8254

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This book, by Australia's ladybird beetle specialist, Dr Adam Slipinski, illustrates Australia's diverse and fascinating ladybird beetle fauna — the commoner spotted species and the many others that are striped, glossy, and even very hairy. Most are predatory, but some are leaf feeders. This book reviews all 57 currently recognised genera of Australian Coccinellidae, recognising 260 valid described species, and including some genera and species newly described here. All genera are diagnosed, described and illustrated and a key to their identification is provided. Larvae of 30 species are described, illustrated and keyed. Sets of colour and black and white plates display these often beautifully colourful beetles, and their key features. The book is a must for all people interested in Australia's beetle fauna, in biocontrol and in natural resource management. This book was originally published in hardback by Australian Biological Resources Study (ABRS) in 2007 and is now available in a digital format.
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