Natural Enemies

Natural Enemies

Author: Ann E. Hajek

Publisher: Cambridge University Press

Published: 2004-02-12

Total Pages: 396

ISBN-13: 9780521653855

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Insects as Natural Enemies

Insects as Natural Enemies

Author: Mark Jervis

Publisher: Springer Science & Business Media

Published: 2005-05-25

Total Pages: 755

ISBN-13: 1402017340

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Over the past three decades there has been a dramatic increase in theoretical and practical studies on insect natural enemies. The appeal of insect predators, and parasitoids in particular, as research animals derives from the relative ease with which many species may be cultured and experimented with in the laboratory, the simple life cycles of most parasitoids, and the increasing demand for biological pest control. There is now a massive literature on insect natural enemies, so there is a great need for a general text that the enquiring student or research worker can use in deciding on approaches and techniques that are appropriate to the study and evaluation of such insects. This book fulfils that demand. A considerably updated and expanded version of a previous best-seller, it is an account of major aspects of the biology of predators and parasitoids, punctuated with information and advice on which experiments or observations to conduct, and how to carry them out. Guidance is provided, where necessary, on the literature that may need to be consulted on particular topics. While researchers can now refer to several books on parasitoids and predators, Insects as Natural Enemies is unique in emphasising practicalities. It is aimed at students and professional working in universities and both government and commercial institutes in the fields of pest management, agriculture, horticulture and forestry.


Relationships of Natural Enemies and Non-prey Foods

Relationships of Natural Enemies and Non-prey Foods

Author: Jonathan G. Lundgren

Publisher: Springer Science & Business Media

Published: 2009-02-26

Total Pages: 470

ISBN-13: 1402092350

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Feeding on Non-Prey Resources by Natural Enemies Moshe Coll Reports on the consumption of non-prey food sources, particularly plant materials, by predators and parasitoids are common throughout the literature (reviewed recently by Naranjo and Gibson 1996, Coll 1998a, Coll and Guershon, 2002). Predators belonging to a variety of orders and families are known to feed on pollen and nectar, and adult parasitoids acquire nutrients from honeydew and floral and extrafloral nectar. A recent publication by Wäckers et al. (2005) discusses the p- visioning of plant resources to natural enemies from the perspective of the plant, exploring the evolutionary possibility that plants enhance their defenses by recru- ing enemies to food sources. The present volume, in contrast, presents primarily the enemies’ perspective, and as such is the first comprehensive review of the nut- tional importance of non-prey foods for insect predators and parasitoids. Although the ecological significance of feeding on non-prey foods has long been underappreciated, attempts have been made to manipulate nectar and pollen ava- ability in crop fields in order to enhance levels of biological pest control by natural enemies (van Emden, 1965; Hagen, 1986; Coll, 1998a). The importance of n- prey foods for the management of pest populations is also discussed in the book.


Trophic Cascades

Trophic Cascades

Author: John Terborgh

Publisher: Island Press

Published: 2013-06-25

Total Pages: 487

ISBN-13: 1597268194

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Trophic cascades—the top-down regulation of ecosystems by predators—are an essential aspect of ecosystem function and well-being. Trophic cascades are often drastically disrupted by human interventions—for example, when wolves and cougars are removed, allowing deer and beaver to become destructive—yet have only recently begun to be considered in the development of conservation and management strategies. Trophic Cascades is the first comprehensive presentation of the science on this subject. It brings together some of the world’s leading scientists and researchers to explain the importance of large animals in regulating ecosystems, and to relate that scientific knowledge to practical conservation. Chapters examine trophic cascades across the world’s major biomes, including intertidal habitats, coastal oceans, lakes, nearshore ecosystems, open oceans, tropical forests, boreal and temperate ecosystems, low arctic scrubland, savannas, and islands. Additional chapters consider aboveground/belowground linkages, predation and ecosystem processes, consumer control by megafauna and fire, and alternative states in ecosystems. An introductory chapter offers a concise overview of trophic cascades, while concluding chapters consider theoretical perspectives and comparative issues. Trophic Cascades provides a scientific basis and justification for the idea that large predators and top-down forcing must be considered in conservation strategies, alongside factors such as habitat preservation and invasive species. It is a groundbreaking work for scientists and managers involved with biodiversity conservation and protection.


Natural Enemies of Terrestrial Molluscs

Natural Enemies of Terrestrial Molluscs

Author: G. M. Barker

Publisher: CABI

Published: 2004

Total Pages: 666

ISBN-13: 9780851990613

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This book provides the first coherent examination of the vast literature on the diversity of organisms that constitute the natural enemies of terrestrial molluscs. In a series of review chapters, it provides an authoritative synthesis of current research on predators, parasites and pathogens and how they might be used to control mollusc pests.


People and Predators

People and Predators

Author: Defenders of Wildlife

Publisher: Island Press

Published: 2012-06-22

Total Pages: 304

ISBN-13: 1597269107

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Carnivores provide innumerable ecological benefits and play a unique role in preserving and maintaining ecosystem services and function, but at the same time they can create serious problems for human populations. A key question for conservation biologists and wildlife managers is how to manage the world's carnivore populations to conserve this important natural resource while mitigating harmful impacts on humans. In People and Predators, leading scientists and researchers offer case studies of human-carnivore conflicts in a variety of landscapes, including rural, urban, and political. The book covers a diverse range of taxa, geographic regions, and conflict scenarios, with each chapter dealing with a specific facet of human-carnivore interactions and offering practical, concrete approaches to resolving the conflict under consideration. Chapters provide background on particular problems and describe how challenges have been met or what research or tools are still needed to resolve the conflicts. People and Predators will helps readers to better understand issues of carnivore conservation in the 21st century, and provides practical tools for resolving many of the problems that stand between us and a future in which carnivores fulfill their historic ecological roles.


Natural Enemies Handbook

Natural Enemies Handbook

Author: Mary Louise Flint

Publisher: Univ of California Press

Published: 1998

Total Pages: 166

ISBN-13: 9780520218017

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"University of California Statewide Integrated Pest Management Project."


Predators and Parasitoids

Predators and Parasitoids

Author: Opender Koul

Publisher: CRC Press

Published: 2003-03-13

Total Pages: 204

ISBN-13: 0203302567

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Their natural enemies largely determine the population size and dynamic behavior of many plant-eating insects. Any reduction in enemy number can result in an insect outbreak. Applied biological control is thus one strategy for restoring functional biodiversity in many agroecosystems. Predators and Parasitoids addresses the role of natural enemies i


Prehistoric Predators

Prehistoric Predators

Author: Brian Switek

Publisher: Applesauce Press

Published: 2015-05-12

Total Pages: 102

ISBN-13: 1604335521

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Discover the most dangerous carnivores that ever roamed the Earth in this exciting and action-packed exploration of Prehistoric Predators, featuring a unique cover that feels like dinosaur-skin! The biggest baddies of the prehistoric world -- the carnivores -- come alive in Prehistoric Predators. From favorites like T-Rex and Giganotosaurus, to the ferocious Spinosaurus and terrifying Megalodon, the stunning full-color illustrations from renowned paleoartist Julius Csotonyi make these dangerous creatures spring to life on each page. Bursting with fascinating facts written by National Geographic contributor Brian Switek, dynamic artwork, and a unique dino-skin textured cover, this is the perfect book for dinosaur lovers of every age!


Natural Enemies

Natural Enemies

Author: Ann E. Hajek

Publisher: Cambridge University Press

Published: 2018-07-26

Total Pages: 716

ISBN-13: 1108640265

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This second edition of Natural Enemies will give students, professionals, and anyone wishing to learn the basics of biological control a fully updated and thorough introduction. The book discusses the huge diversity of organisms used in the control of pests, weeds and plant pathogens, and compares the many different strategies referred to as 'biological control': the introduction of exotic natural enemies, application of predators, parasitoids, and microorganisms as biopesticides, and manipulation of the environment to enhance natural enemy populations. The authors present the ecological concepts which form the bases of biological control and discuss recent changes to make biological control safe for the environment. Case studies are included throughout, providing in-depth examples of the use of different organisms and strategies in a variety of ecosystems. A new chapter covers the current challenges; the impact of climate change, the problem of invasive species, and how biological control can aid sustainability.