Helen Roy – författare

This field guide enables the identification of a range of invasive plants and animals now found in Britain.The impact of invasive organisms is second only to habitat loss as a threat to biodiversity and yet, despite increasing ecological awareness, people remain largely unaware of these plants and animals and their potentially devastating impact. Although most biological introductions fail, many prove successful and these can prove disastrous for native fauna and flora.Field Guide to Invasive Plants and Animals in Britainis the first unified guide dedicated to the identification of introduced species. Pocket-sized and packed with photographs and detailed maps showing the spread of species, it is the definitive handbook for the amateur naturalist looking to identify and learn more about Britain’s invasive flora and fauna. It is also an important tool for ecologists and land managers attempting to tackle the problem these species pose.

'A ground-breaking identification guide ... the perfect marriage of artistic excellence, deep knowledge and, dare I say it, of scientists' genuine affection.' - Brett WestwoodThis brand new illustrated field guide covers all 47 species of ladybird occurring in the British Isles in a handy and easy-to-use format. Twenty-seven species are colourful and conspicuous and easily recognised as ladybirds; the remaining species are more challenging, but the clear illustrations and up-to-date text in this guide will help to break down the identification barriers.A useful introduction provides an overview of ladybird ecology, tips on studying and recording, and suggested sites for finding ladybirds. The main part of the book comprises detailed species texts, covering field characters, food, habitats, suggested survey methods, ranges, conservation statuses and distribution trends. An illustrated at-a-glance identification guide and helpful pointers for differentiating similar-looking species are also included.With 102 colour photographs and 47 distribution maps, combined with Richard Lewington’s peerless artwork, this is the definitive guide to one of our most cherished and charismatic insect groups.

Understanding invasion biology, and the dynamics of biological control practices, requires a multidisciplinary approach, embracing and integrating all the research tools at our disposal, particularly modern molecular and modelling techniques. This book provides a comprehensive and current overview of invasive alien arthropod predators and parasitoids through 20 chapters, contributed by 69 internationally renowned scientists (previously published as peer-reviewed papers in BioControl – August 2011), ranging from broad reviews of key topics on invasive alien species (IAS) to taxon-specific chapters. The context of invasion biology is given through nine chapters focusing on current themes but highlighting future directions and knowledge gaps. Concepts are explored in detail through ten chapters focusing on a taxonomically diverse range of arthropods. The concluding chapter presents an objective approach to considering the benefits and risks of exotic biological control agents.