Nematodes are one of the most abundant groups of invertebrates on the face of the earth. Their numbers are estimated to range from 1000 per cm2 in the sand-covered hydrogen sulphide black zone beneath the ocean floors to 1.2 billion in a single hectare of soil. Estimates for their species diversity range from 100 000 to 10 million. The past history of nematodes is a mystery, since very few fossils have been discovered. This book establishes a solid base in palaeonematology with descriptions of 66 new fossil species and accounts of all previous fossil and subfossil nematodes from sedimentary deposits, coprolites, amber and mummies. It shows how nematode fossils can be used to establish lineages at various locations and time periods in the earth s history and when nematodes entered into symbiotic and parasitic associations with plants and animals.

The present work deals with the diseases of nematodes. Although the term disease implies a pathological condition brought about by an infectious agent, a broader concept is used here.

In this complete and thorough update of Arthur Boucot's seminal work, Evolutionary Paleobiology of Behavior and Coevolution, Boucot is joined by George Poinar, who provides additional expertise and knowledge on protozoans and bacteria as applied to disease. Together, they make the Fossil Behavior Compendium wider in scope, covering all relevant animal and plant groups and all epochs, and providing a detailed review of animal and plant fossil behavior in terrestrial and aquatic environments. Fossil behavior encompasses not only past evidence of the life history of an organism but also behavioral, predation, and symbiotic interactions, including parasitism. This book compares patterns of behavior and coevolution in the past with those of the present-day descendants. It also discusses how to evaluate the rates of evolution of behavior and coevolution at various taxonomic levels. The compendium emphasizes the interactions between fossils and compares these interactions with present-day counterparts. It also provides new discussions on topics related to fossils in amber. Keeping Boucot's trademark, easy-to-read style, the book includes new findings never published previously, reports not easily accessed, numerous examples, 40 tables, 285 illustrations-some published here for the first time-and a four-page color insert. The book provides a concise account of the evidence for varied disease types recognized to date in the fossil record.

This book discusses nematodes for biological of insects. The book includes the following chapters; classification of nematode, key to entomogenous nematodes, nematode groups, microorganisms associated with entomogenous nematodes, immunity to entomogenous nematodes, natural enemies of entomogenous nematodes, environmental impact of entomogenous nematodes, and future prospects.

The present work deals with the diseases of nematodes. Although the term disease implies a pathological condition brought about by an infectious agent, a broader concept is used here.

In this complete and thorough update of Arthur Boucot s seminal work, Evolutionary Paleobiology of Behavior and Coevolution, Boucot is joined by George Poinar, who provides additional expertise and knowledge on protozoans and bacteria as applied to disease. Together, they make the Fossil Behavior Compendium wider in scope, covering all relevant animal and plant groups and all epochs, and providing a detailed review of animal and plant fossil behavior in terrestrial and aquatic environments.

Fossil behavior encompasses not only past evidence of the life history of an organism but also behavioral, predation, and symbiotic interactions, including parasitism. This book compares patterns of behavior and coevolution in the past with those of the present-day descendants. It also discusses how to evaluate the rates of evolution of behavior and coevolution at various taxonomic levels. The compendium emphasizes the interactions between fossils and compares these interactions with present-day counterparts. It also provides new discussions on topics related to fossils in amber.

Keeping Boucot s trademark, easy-to-read style, the book includes new findings never published previously, reports not easily accessed, numerous examples, 40 tables, 285 illustrations some published here for the first time and a four-page color insert. The book provides a concise account of the evidence for varied disease types recognized to date in the fossil record.

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Amber is a semi-precious gem that is formed over eons by natural forces out of the resin of trees. Human fascination with amber dates back to prehistoric times, when it was probably considered to have magical powers and was used for adornment and trade. Amber amulets and beads dating from 35,000 to 1,800 B.C. have been found, and where they have been found (for example in graves hundreds of miles from their chemically determined origins) has often helped to establish ancient trade routes. The preservative qualities of plant resins were well known by the ancients. The Egyptians used resins to embalm their dead, and the Greeks used them to preserve their wine. Amber often preserved fossils, frequently in a pristine state, of all kinds of animal and plant organisms that made contact with the sticky substance and became trapped in it. These fossils include such fragile organisms as nematodes and mushrooms that ordinarily are not preserved under normal processes of fossilization, as well as larger organisms like scorpions and lizards, and the fossils are preserved in their full three-dimensional form, complete with minute details of scales, mouth parts, antennae, and hairs. It has even been suggested that viable DNA may persist in some amber-trapped organisms. This book is a compendium of all that we know about life found in amber. It surveys all life forms, from microbes to vertebrates and plants, that have been reported from amber deposits throughout the world, beginning with the earliest pieces dating from some 300 million years ago. It also describes the formation of amber and the location, geological history, and early exploration of the major world amber deposits, including those stillbeing worked today. The book also provides practical information on how to determine fake amber containing present-day forms of life. It can serve as a beginning for tracing the geological history of a particular group of animals or plants or even reconstructing ancient paleoenvironments, and because amber fossils are preserved so completely, in a transparent medium, they can be intimately compared with related living species. Finally, the book discusses what amber fossils can tell us about evolution and speciation, cellular preservation, and paleosymbiosis. The book is illustrated with 37 color photographs, 154 black-and-white photographs and drawings, and 8 maps.