Ulrich Sommer – författare
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22 produkter
22 produkter
E-bok
PDF, Engelska, 2007760 kr
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This concise, readable introduction to limnology (the science of investigating the structure and function of inland waters), places the subject in the context of modern ecology. Unlike most ecological textbooks, which use examples taken almost exclusively from terrestrial systems, this book integrates the fields of limnology and ecology by presenting empirical data drawn entirely from freshwater ecosystems in order to advance ecological theories (limnoecology).This second edition builds upon the strengths of the first with the structure of the book following the same hierarchical concept of ecology, from habitat properties, individuals, populations, coupled populations and communities to ecosystems. However, it has been thoroughly revised throughout to incorporate findings from new technologies and methods (notably the rapid development of molecular genetic methods and stable isotope techniques) that have allowed a rapid and ongoing development of the field. There is a new emphasis on food webs, species diversity and ecosystem functioning, climate change, and conservation management. Key ecological questions are examined in the light of the latest experimental evidence. Throughout the text evolutionary theory is applied to an understanding of freshwater ecosystems, thereby filling a niche between traditional limnology and evolutionary ecology.This accessible text is suitable for both undergraduate and graduate students taking courses in limnology, freshwater ecology, and aquatic biology as well as the many professional limnologists, ecologists and conservation biologists requiring a concise but authoritative overview of the topic
Häftad, Engelska, 2007
1 136 kr
Skickas inom 5-8 vardagar
This concise, readable introduction to limnology (the science of investigating the structure and function of inland waters), places the subject in the context of modern ecology. Unlike most ecological textbooks, which use examples taken almost exclusively from terrestrial systems, this book integrates the fields of limnology and ecology by presenting empirical data drawn entirely from freshwater ecosystems in order to advance ecological theories (limnoecology).This second edition builds upon the strengths of the first with the structure of the book following the same hierarchical concept of ecology, from habitat properties, individuals, populations, coupled populations and communities to ecosystems. However, it has been thoroughly revised throughout to incorporate findings from new technologies and methods (notably the rapid development of molecular genetic methods and stable isotope techniques) that have allowed a rapid and ongoing development of the field. There is a new emphasis on food webs, species diversity and ecosystem functioning, climate change, and conservation management. Key ecological questions are examined in the light of the latest experimental evidence. Throughout the text evolutionary theory is applied to an understanding of freshwater ecosystems, thereby filling a niche between traditional limnology and evolutionary ecology.This accessible text is suitable for both undergraduate and graduate students taking courses in limnology, freshwater ecology, and aquatic biology as well as the many professional limnologists, ecologists and conservation biologists requiring a concise but authoritative overview of the topic
Inbunden, Engelska, 2024
1 079 kr
Skickas inom 10-15 vardagar
Freshwater and Marine Ecology is an introduction to the field of aquatic ecology, integrating the conceptually and methodologically widely overlapping fields of limnology and biological oceanography. It is structured like most textbooks of general ecology, leading from more elemental entities (individuals having to cope with their environment) to increasingly overarching entities, from populations over communities and ecosystems to the biogeochemistry of the entire planet and, finally, an overview over the major human impacts on the aquatic components of the earth system. The book provides examples for all major theoretical concepts of general ecology while the usual ecology textbooks have a strong terrestrial bias and rely only on few aquatic examples. This book takes the contrasting approach, motivated by the fact the fact that life originated from aquatic systems and that surface waters cover more than 70% of the Earth’s surface. The choice of studies used as examplesin Freshwater and Marine Ecology provides a balanced mix of freshwater and marine studies, of field observations, experimental and modeling studies. The readers are confronted with very recent work leading to the forefront of contemporaneous research but also with classic studies which laid the foundations of theory development in the field. Freshwater and Marine Ecology is a comprehensive text ideally serving for undergraduate courses in biological oceanography, limnology, and ecology, but also for advanced students, teachers and scientists who had limited exposure to aquatic sciences and/or ecology during their studies.
E-bok
Engelska, 2024950 kr
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Freshwater and Marine Ecology is an introduction to the field of aquatic ecology, integrating the conceptually and methodologically widely overlapping fields of limnology and biological oceanography. It is structured like most textbooks of general ecology, leading from more elemental entities (individuals having to cope with their environment) to increasingly overarching entities, from populations over communities and ecosystems to the biogeochemistry of the entire planet and, finally, an overview over the major human impacts on the aquatic components of the earth system. The book provides examples for all major theoretical concepts of general ecology while the usual ecology textbooks have a strong terrestrial bias and rely only on few aquatic examples. This book takes the contrasting approach, motivated by the fact the fact that life originated from aquatic systems and that surface waters cover more than 70% of the Earth’s surface. The choice of studies used as examplesin Freshwater and Marine Ecology provides a balanced mix of freshwater and marine studies, of field observations, experimental and modeling studies. The readers are confronted with very recent work leading to the forefront of contemporaneous research but also with classic studies which laid the foundations of theory development in the field. Freshwater and Marine Ecology is a comprehensive text ideally serving for undergraduate courses in biological oceanography, limnology, and ecology, but also for advanced students, teachers and scientists who had limited exposure to aquatic sciences and/or ecology during their studies.
Häftad, Engelska, 2025
758 kr
Skickas inom 10-15 vardagar
Freshwater and Marine Ecology is an introduction to the field of aquatic ecology, integrating the conceptually and methodologically widely overlapping fields of limnology and biological oceanography. It is structured like most textbooks of general ecology, leading from more elemental entities (individuals having to cope with their environment) to increasingly overarching entities, from populations over communities and ecosystems to the biogeochemistry of the entire planet and, finally, an overview over the major human impacts on the aquatic components of the earth system. The book provides examples for all major theoretical concepts of general ecology while the usual ecology textbooks have a strong terrestrial bias and rely only on few aquatic examples. This book takes the contrasting approach, motivated by the fact the fact that life originated from aquatic systems and that surface waters cover more than 70% of the Earth’s surface. The choice of studies used as examplesin Freshwater and Marine Ecology provides a balanced mix of freshwater and marine studies, of field observations, experimental and modeling studies. The readers are confronted with very recent work leading to the forefront of contemporaneous research but also with classic studies which laid the foundations of theory development in the field. Freshwater and Marine Ecology is a comprehensive text ideally serving for undergraduate courses in biological oceanography, limnology, and ecology, but also for advanced students, teachers and scientists who had limited exposure to aquatic sciences and/or ecology during their studies.
Inbunden, Tyska, 2025
659 kr
Skickas inom 10-15 vardagar
Süßwasser- und Meeresökologie bietet eine umfassende Einführung in die aquatische Ökologie, indem es die Fachgebiete Limnologie und biologische Ozeanographie integriert. Strukturiert wie allgemeine Ökologie-Lehrbücher, entwickelt es den Gegenstand von grundlegenden Einheiten wie Individuen bis hin zu komplexen Ökosystemen und globalen Biogeochemieprozessen. Das Buch hebt sich durch seine ausgewogene Auswahl an Beispielen aus Süßwasser- und Meeresstudien hervor, die Feldbeobachtungen, experimentelle Studien und Modelle umfassen. Es bietet nicht nur Einblicke in aktuelle Forschungsentwicklungen, sondern würdigt auch klassische Studien, die die theoretischen Grundlagen des Fachgebiets gelegt haben. Süßwasser- und Meeresökologie ist somit nicht nur ideal für grundlegende Kurse in biologischer Ozeanographie, Limnologie und Ökologie geeignet, sondern bietet auch fortgeschrittenen Studierenden, Lehrkräften und Wissenschaftlern mit unterschiedlichem Erfahrungshintergrund einen wertvollen Zugang zu den aquatischen Wissenschaften.
E-bok
Tyska, 2025696 kr
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Süßwasser- und Meeresökologie bietet eine umfassende Einführung in die aquatische Ökologie, indem es die Fachgebiete Limnologie und biologische Ozeanographie integriert. Strukturiert wie allgemeine Ökologie-Lehrbücher, entwickelt es den Gegenstand von grundlegenden Einheiten wie Individuen bis hin zu komplexen Ökosystemen und globalen Biogeochemieprozessen. Das Buch hebt sich durch seine ausgewogene Auswahl an Beispielen aus Süßwasser- und Meeresstudien hervor, die Feldbeobachtungen, experimentelle Studien und Modelle umfassen. Es bietet nicht nur Einblicke in aktuelle Forschungsentwicklungen, sondern würdigt auch klassische Studien, die die theoretischen Grundlagen des Fachgebiets gelegt haben. Süßwasser- und Meeresökologie ist somit nicht nur ideal für grundlegende Kurse in biologischer Ozeanographie, Limnologie und Ökologie geeignet, sondern bietet auch fortgeschrittenen Studierenden, Lehrkräften und Wissenschaftlern mit unterschiedlichem Erfahrungshintergrund einen wertvollen Zugang zu den aquatischen Wissenschaften.
Inbunden, Tyska
1 419 kr
Skickas inom 3-6 vardagar
E-bok
PDF, Tyska, 2006412 kr
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In lernfreundlicher Aufbereitung und leicht verständlichem Schreibstil gibt das Lehrbuch einen grundlegenden und umfassenden Überblick über die verschiedenen Lebensräume und Lebensgemeinschaften des Meeres. Ökologische Prozesse wie Konkurrenz, Freßbeziehungen, Symbiosen und Nahrungsnetze sind ein zentrales Thema des Buches. Die einzelnen Meeresorganismen werden ebenso beschrieben wie die Systemzusammenhänge. Zahlreiche Abbildungen regen zum Lesen und Lernen an.
Um das von Studierenden nachgefragte Buch auch weiterhin lieferbar halten zu können, wurde es, bis auf einige farbige Abbildungen, schwarzweiß nachgedruckt.
Inbunden, Engelska, 2002
1 187 kr
Skickas inom 10-15 vardagar
The global loss of biodiversity has led to a renewed interest in the underlying mechanisms that explain spatial differences and temporal change of diversity. This book synthesises recent advances in our understanding of interactions that enhance or diminish coexistence among competing species. It features an innovative, spatial view of competition and coexistence. The chapters are logically grouped and stitched together by the central organising principle of spatial distribution and mobility of competing species and their resources. The text also covers ecological modelling and experimental evidence in the search for general principles across ecosystems, from lake plankton and rocky shore benthos to grasslands and insects.
Häftad, Tyska, 1994
458 kr
Skickas inom 10-15 vardagar
Das Plankton ist die am weitesten verbreitete Lebensgemeinschaft der Erde. Seine Bedeutung für die Wasserqualität und als Nahrungsbasis für die Fischerei ist unbestritten. Das vorliegende Lehrbuch stellt erstmals alle Aspekte der Planktologie zusammenfassend dar, von einer taxonomischen Übersicht über die physikalische und chemische Beschreibung des Lebensraums, die Funktionsmorphologie, Ernährungsphysiologie und Populationsökologie bis hin zur Bedeutung des Planktons im aquatischen Ökosystem und in biogeochemischen Kreisläufen. Besonderheiten des Buches sind die gemeinsame Behandlung des Süßwasser- und des Meeresplanktons, die Gliederung nach Problemebenen sowie die Betonung vereinheitlichender Konzepte. Exemplarisch werden fast alle großen Fragen der allgemeinen Ökologie abgehandelt.
Häftad, Tyska, 1996
458 kr
Skickas inom 10-15 vardagar
Freunden der Natur, der Seen und der Meere eröffnet dieses Buch einen Einblick in die oft mikroskopisch kleine Welt des Planktons.Zahlreiche Zeichnungen und Farbtafeln geben einen Eindruck von der Schönheit und Formenvielfalt vieler Plankter. Beispiele aus vielen Gewässern der Erde zeigen, welch wichtige Rolle das Plankton in der Nahrungskette spielt und wie es die Stoffkreisläufe im Wasser und sogar die Atmosphäre beeinflußt.Schließlich wird die Reaktion des Planktons auf die Gewässerversauerung und die Überdüngung gezeigt und erklärt, welches Gefährdungspotential von Giftalgen ausgehen kann.
E-bok
PDF, Engelska, 20121 416 kr
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The question "Why are there so many species?" has puzzled ecologist for a long time. Initially, an academic question, it has gained practical interest by the recent awareness of global biodiversity loss. Species diversity in local ecosystems has always been discussed in relation to the problem of competi tive exclusion and the apparent contradiction between the competitive exclu sion principle and the overwhelming richness of species found in nature. Competition as a mechanism structuring ecological communities has never been uncontroversial. Not only its importance but even its existence have been debated. On the one extreme, some ecologists have taken competi tion for granted and have used it as an explanation by default if the distribu tion of a species was more restricted than could be explained by physiology and dispersal history. For decades, competition has been a core mechanism behind popular concepts like ecological niche, succession, limiting similarity, and character displacement, among others. For some, competition has almost become synonymous with the Darwinian "struggle for existence", although simple plausibility should tell us that organisms have to struggle against much more than competitors, e.g. predators, parasites, pathogens, and envi ronmental harshness.
E-bok
PDF, Tyska, 2013433 kr
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Freunden der Natur, der Seen und der Meere eröffnet dieses Buch einen Einblick in die oft mikroskopisch kleine Welt des Planktons.Zahlreiche Zeichnungen und Farbtafeln geben einen Eindruck von der Schönheit und Formenvielfalt vieler Plankter. Beispiele aus vielen Gewässern der Erde zeigen, welch wichtige Rolle das Plankton in der Nahrungskette spielt und wie es die Stoffkreisläufe im Wasser und sogar die Atmosphäre beeinflußt.Schließlich wird die Reaktion des Planktons auf die Gewässerversauerung und die Überdüngung gezeigt und erklärt, welches Gefährdungspotential von Giftalgen ausgehen kann.
Häftad, Engelska, 2012
1 079 kr
Skickas inom 10-15 vardagar
The question "Why are there so many species?" has puzzled ecologist for a long time. Initially, an academic question, it has gained practical interest by the recent awareness of global biodiversity loss. Species diversity in local ecosystems has always been discussed in relation to the problem of competi tive exclusion and the apparent contradiction between the competitive exclu sion principle and the overwhelming richness of species found in nature. Competition as a mechanism structuring ecological communities has never been uncontroversial. Not only its importance but even its existence have been debated. On the one extreme, some ecologists have taken competi tion for granted and have used it as an explanation by default if the distribu tion of a species was more restricted than could be explained by physiology and dispersal history. For decades, competition has been a core mechanism behind popular concepts like ecological niche, succession, limiting similarity, and character displacement, among others. For some, competition has almost become synonymous with the Darwinian "struggle for existence", although simple plausibility should tell us that organisms have to struggle against much more than competitors, e.g. predators, parasites, pathogens, and envi ronmental harshness.
E-bok
PDF, Engelska, 20121 416 kr
Läs direkt efter köp
All relevant ecological aspects of plankton, especially seasonal changes in the species composition, the role of competition for limiting resources in species replacements, the role of parasitism, predation and competition in seasonal succession are treated in detail considering phytoplankton, zooplankton and bacteroplankton. In addition to its use as a valid reference book for plankton ecology, this monograph may well be used as a model for other kinds of ecological communities.
Häftad, Engelska, 2012
1 079 kr
Skickas inom 10-15 vardagar
All relevant ecological aspects of plankton, especially seasonal changes in the species composition, the role of competition for limiting resources in species replacements, the role of parasitism, predation and competition in seasonal succession are treated in detail considering phytoplankton, zooplankton and bacteroplankton. In addition to its use as a valid reference book for plankton ecology, this monograph may well be used as a model for other kinds of ecological communities.
E-bok
PDF, Tyska, 2013449 kr
Läs direkt efter köp
Das Plankton ist die am weitesten verbreitete Lebensgemeinschaft der Erde. Seine Bedeutung für die Wasserqualität und als Nahrungsbasis für die Fischerei ist unbestritten. Das vorliegende Lehrbuch stellt erstmals alle Aspekte der Planktologie zusammenfassend dar, von einer taxonomischen Übersicht über die physikalische und chemische Beschreibung des Lebensraums, die Funktionsmorphologie, Ernährungsphysiologie und Populationsökologie bis hin zur Bedeutung des Planktons im aquatischen Ökosystem und in biogeochemischen Kreisläufen. Besonderheiten des Buches sind die gemeinsame Behandlung des Süßwasser- und des Meeresplanktons, die Gliederung nach Problemebenen sowie die Betonung vereinheitlichender Konzepte. Exemplarisch werden fast alle großen Fragen der allgemeinen Ökologie abgehandelt.
E-bok
PDF, Tyska, 2013380 kr
Läs direkt efter köp
Häftad, Tyska, 2016
408 kr
Skickas inom 10-15 vardagar
In lernfreundlicher Aufbereitung und leicht verständlichem Schreibstil gibt das Lehrbuch einen grundlegenden und umfassenden Überblick über die verschiedenen Lebensräume und Lebensgemeinschaften des Meeres. Ökologische Prozesse wie Konkurrenz, Freßbeziehungen, Symbiosen und Nahrungsnetze sind ein zentrales Thema des Buches. Die einzelnen Meeresorganismen werden ebenso beschrieben wie die Systemzusammenhänge. Zahlreiche Abbildungen regen zum Lesen und Lernen an.Um das von Studierenden nachgefragte Buch auch weiterhin lieferbar halten zu können, wurde es, bis auf einige farbige Abbildungen, schwarzweiß nachgedruckt.
Häftad, Tyska, 2024
275 kr
Skickas inom 3-6 vardagar
Inbunden, Tyska
1 009 kr
Skickas inom 3-6 vardagar