The biota of the earth is being altered at an unprecedented rate. We are witnessing wholesale exchanges of organisms among geographic areas that were once totally biologically isolated. We are seeing massive changes in landscape use that are creating even more abundant succes sional patches, reductions in population sizes, and in the worst cases, losses of species. There are many reasons for concern about these trends. One is that we unfortunately do not know in detail the conse quences of these massive alterations in terms of how the biosphere as a whole operates or even, for that matter, the functioning of localized ecosystems. We do know that the biosphere interacts strongly with the atmospheric composition, contributing to potential climate change. We also know that changes in vegetative cover greatly influence the hydrology and biochemistry ofa site or region. Our knowledge is weak in important details, however. How are the many services that ecosystems provide to humanity altered by modifications of ecosystem composition? Stated in another way, what is the role of individual species in ecosystem function? We are observing the selective as well as wholesale alteration in the composition of ecosystems. Do these alterations matter in respect to how ecosystems operate and provide services? This book represents the initial probing of this central ques tion. It will be followed by other volumes in this series examining in depth the functional role of biodiversity in various ecosystems of the world.
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The biota of the earth is being altered at an unprecedented rate. We are witnessing wholesale exchanges of organisms among geographic areas that were once totally biologically isolated. We are seeing massive changes in landscape use that are creating even more abundant succes sional patches, reductions in population sizes, and in the worst cases, losses of species. There are many reasons for concern about these trends. One is that we unfortunately do not know in detail the conse quences of these massive alterations in terms of how the biosphere as a whole operates or even, for that matter, the functioning of localized ecosystems. We do know that the biosphere interacts strongly with the atmospheric composition, contributing to potential climate change. We also know that changes in vegetative cover greatly influence the hydrology and biochemistry ofa site or region. Our knowledge is weak in important details, however. How are the many services that ecosystems provide to humanity altered by modifications of ecosystem composition? Stated in another way, what is the role of individual species in ecosystem function? We are observing the selective as well as wholesale alteration in the composition of ecosystems. Do these alterations matter in respect to how ecosystems operate and provide services? This book represents the initial probing of this central ques tion. It will be followed by other volumes in this series examining in depth the functional role of biodiversity in various ecosystems of the world.
With the accelerating loss of biodiversity there is increasing concern about how this loss may be affecting ecosystem processes, or services, that are of benefit to human well being. The limited studies that address the principal question directly, species numbers versus system function, are evaluated. Moreover, the degree of redundancy within systems, the ubiquity of keystone species, the tightness of species interactions from mutualisms to food webs, the resilience of systems to perturbation, the interactions of landscape units are explored, as is also how policy decisions are driven in this research area.
This book brings together the disciplines of population biology and ecoysystem science, both directed toward evaluating the consequences of human-driven disruptions of natural systems.
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Broschiert. 556 Seiten Auf den ersten Seiten und der Innenseite des hinteren Buchdeckels nummeriertes Buch aus Privatbibliothek mit Vorbesitzerstempel auf der Titelei. Vereinzelte farbige Unterstreichungen. Untere Ecken der ersten Seiten bis zum Inhaltsverzeichnis abgeschnitten, ebenso die unteren Ecken des Registers hinten. Buchklappen berieben und bestoßen, Schnitte und Seitenränder etwas nachgedunkelt. Sonstiger Zustand stabil und ordentlich. Als Arbeitsexemplar geeignet. - Book from a private library with stamps and markings on the first few pages and on the inner side of back cover. Sporadic red underlinings. Lower corners of the first and the last few pages cut off. Cover and cut edges with some shelf wear. Otherwise a solid and well kept book. Good working copy. 9783540581031 Sprache: Englisch Gewicht in Gramm: 950. Bestandsnummer des Verkäufers 22658
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Soft cover. Zustand: VG+. 525 pages in very good, clean condition. Previous owner's initials on the ffep. Green card covers with illustration and black titles. Light wear on corners and edges. VG+. Book. Bestandsnummer des Verkäufers 208082
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