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(Endo)symbiotic Methanogenic Archaea
This updated monograph deals with methanogenic endosymbionts of anaerobic protists, in particular ciliates and termite flagellates, and with methanogens in the gastrointestinal tracts of vertebrates and arthropods. Further chapters discuss the genomic consequences of living together in symbiotic associations, the role of methanogens in syntrophic degradation, and the function and evolution of hydrogenosomes, hydrogen-producing organelles of certain anaerobic protists. Methanogens are prokaryotic microorganisms that produce methane as an end-product of a complex biochemical pathway. They are strictly anaerobic archaea and occupy a wide variety of anoxic environments. Methanogens also thrive in the cytoplasm of anaerobic unicellular eukaryotes and in the gastrointestinal tracts of animals and humans. The symbiotic methanogens in the gastrointestinal tracts of ruminants and other “methanogenic” mammals contribute significantly to the global methane budget; especially the rumen hosts an impressive diversity of methanogens. This makes this updated volume an interesting read for scientists and students in Microbiology and Physiology.
Advances in Microbial Ecology
Microbial ecology has come of age. A long history of exploratory research and problem definition is admittedly behind us, and outstanding scientists from many regions of the world have contributed major findings to the development of the discipline. The early literature is indeed vast and impressive, yet it is still fair to say that the field is just beginning to develop in a mature fashion. The major microbial habitats and the chief inhabitants have been delineated and are only now being adequately explored; the processes that are brought about by the microscopic residents are at the present time being investigated in definitive ways; new concepts are being formulated; and novel, exciting, ...
Enclosed Experimental Marine Ecosystems: A Review and Recommendations
The application of mesocosms, defined in this report as artificial 3 3 experimental enclosures ranging in size from 1 m to 10m , to address various problems in the marine sciences has been a relatively recent development. The application of the technology was dictated by the realization that many important ocean processes and interactions cannot be fully understood from observations in the natural environment or in smaller enclosures. Such studies involve, for example, determining the interactions between, and energy transfer from, one trophic level to another, the biogeochemical cycling of elements and compounds, etc. These and similar interactions and rate processes cannot normally be esta...
The Ecology of Natural Disturbance and Patch Dynamics
The Ecology of Natural Disturbance and Patch Dynamics brings together the findings and ideas of researchers studying such varied systems as marine invertebrate communities; grasslands; and boreal, temperate, and tropical forests. The primary goal is to present a synthesis of diverse individual contributions. The book is divided into three main sections: (1) examples of patch dynamics in diverse systems; (2) adaptations of organisms and evolution of populations in patch dynamic environments; and (3) implications of patch dynamics for the organization of communities and the functioning of ecosystems. This approach demonstrates the commonality of disturbance-generated phenomena over a wide range of scales and levels of organization, and thus validates the broad applicability of the patch dynamic viewpoint. The book presents a framework that can stimulate the generation of explicit hypotheses and theory and forms an alternative to equilibrium concepts of the evolution of populations, composition of communities, and functioning of ecosystems.
Natural Selection in the Wild. (MPB-21), Volume 21
Natural selection is an immense and important subject, yet there have been few attempts to summarize its effects on natural populations, and fewer still which discuss the problems of working with natural selection in the wild. These are the purposes of John Endler's book. In it, he discusses the methods and problems involved in the demonstration and measurement of natural selection, presents the critical evidence for its existence, and places it in an evolutionary perspective. Professor Endler finds that there are a remarkable number of direct demonstrations of selection in a wide variety of animals and plants. The distribution of observed magnitudes of selection in natural populations is surprisingly broad, and it overlaps extensively the range of values found in artificial selection. He argues that the common assumption that selection is usually weak in natural populations is no longer tenable, but that natural selection is only one component of the process of evolution; natural selection can explain the change of frequencies of variants, but not their origins.
Life Histories
Crustaceans are increasingly used as model organisms in all fields of biology, as few other taxa exhibit such a variety of body shapes and adaptations to particular habitats and environmental conditions. Life Histories is the fifth volume in The Natural History of the Crustacea series. An understanding of life histories is crucial to understanding the biology of this fascinating invertebrate group. Written by internationally recognized experts studying a wide range of crustacean taxa and topics, this volume synthesizes current research in a format that is accessible to a wide scientific audien.
Competition, Diversity and Economic Performance
'Ecological and economic systems share some fundamental characteristics that Clem Tisdell has beautifully illuminated. He has given us a much better handle on the roles of competition, diversity, evolution and sustainability in complex, interdependent ecological and economic systems. Our ability to build a sustainable and desirable future fundamentally depends on this integrated understanding.' – Robert Costanza, Portland State University, US This thought-provoking book explores the influences of market competition and diverse behaviours of economic agents on economic performance, particularly dynamic economic performance. Clem Tisdell illustrates – within evolutionary, dynamic and stati...
Competition Models in Population Biology
This book uses fundamental ideas in dynamical systems to answer questions of a biologic nature, in particular, questions about the behavior of populations given a relatively few hypotheses about the nature of their growth and interaction. The principal subject treated is that of coexistence under certain parameter ranges, while asymptotic methods are used to show competitive exclusion in other parameter ranges. Finally, some problems in genetics are posed and analyzed as problems in nonlinear ordinary differential equations.
A Coastal Marine Ecosystem
One aim of the physical sciences has been to give an exact picture of the material world. One achievement of physics in the twentieth century has been to prove that that aim is unattainable . . . . There is no absolute knowledge. And those who claim it, whether they are scientists or dogmatists, open the door to tragedy. All information is imperfect. We have to treat it with humility. Bronowski (1973) The Ascent of Man It seems particularly appropriate to us to begin this book with Jacob Bronowski's passionate message firmly in mind. Those who set out to construct numerical models, especially ones that are mechanistic and essentially deterministic, must work always with this awareness as a b...
Vertebrate Pests in Agriculture
Vertebrate pests cause considerable damage to environment, agriculture and biodiversity apart from transmitting diseases. The problem is more pronounced in tropical Asia and Africa with non-human primates, elephants, several species of ungulates, rodents, frugivorous and grainivorous birds causing agricultural losses. In Europe and America the damage is due to carnivore predation on livestock, bird damage in cereal crops and rodent problem in urban and agricultural situations. Although there are several excellent books on rodent pest management both in India and at global level, there is a conspicuous lacuna of published books on vertebrate pest management. Even the few publications on the s...
