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From an antagonistic to a synergistic predator prey perspective : bifurcations in marine ecosystems /

From an Antagonistic to a Synergistic Predator Prey Perspective: Bifurcations in Marine Ecosystems is a groundbreaking reference that challenges the widespread perception that predators generally have a negative impact on the abundance of their prey, and it proposes a novel paradigm - Predator-prey...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Johannessen, Tore (Autor)
Formato: Electrónico eBook
Idioma:Inglés
Publicado: London : Academic Press, 2014.
Temas:
Acceso en línea:Texto completo
Tabla de Contenidos:
  • Front Cover; From an Antagonistic to a Synergistic Predator Prey Perspective; Copyright Page; Dedication; Contents; List of Contributors; Preface; References; 1 Introduction; 1.1 About this book; 1.2 Unifying Principles in Ecology-Where are We?; 1.3 Recruitment Variability; 1.4 Ecosystem Bifurcation; 1.5 Predator-Prey Synergism; References; 2 Repeated Incidents of Abrupt and Persistent Recruitment Failures in Gadoids in Relation to Increasing Eutrophication, 191 ... ; 2.1 Introduction; 2.2 Methods; 2.2.1 Beach Seine Sampling; 2.2.2 Bottom Vegetation; 2.2.3 Study Sites.
  • 2.2.4 Sampling Reliability2.2.5 Statistical Analyses; 2.3 Results; 2.3.1 Sampling Reliability; 2.3.2 Temporal Variation of 0-Group Gadoids Abundance Along the Norwegian Skagerrak Coast; 2.3.2.1 General Trends; 2.3.2.2 Spatial Variation at Selected Locations; 2.3.2.3 Differences Between an Exposed and an Semi-enclosed Subarea; 2.3.3 Areas with Recruitment Collapses; 2.3.3.1 Grenland; 2.3.3.2 Holmestrandfjord; 2.3.3.3 Inner Oslofjord; 2.3.4 Pooled Abundance of Gadoid and Non-Gadoid Fishes After the Recruitment Failures; 2.4 Discussion.
  • 2.4.1 General Trends in the Abundance of Gadoids Along the Norwegian Skagerrak Coast2.4.2 Areas with Recruitment Collapses; 2.4.3 Eutrophication as a Probable Common Cause; References; 3 Causes of Variation in Abundance, Growth, and Mortality in 0-Group Gadoids After Settlement and a Hypothesis Underlying R ... ; 3.1 Introduction; 3.1.1 Background; 3.1.2 Mechanisms Underlying Recruitment Variability; 3.1.3 Settlement, Growth, and Recruitment; 3.2 Methods; 3.2.1 Settlement and Growth; 3.2.2 Growth and Year-Class Strength in 0-Group Cod; 3.2.3 Predation; 3.3 Results.
  • 3.3.1 Settlement and Growth in the Gadoids3.3.2 Seasonal Patterns in the Abundance of Littoral Fishes and Invertebrates; 3.3.3 Predation; 3.3.4 Growth and Year-Class Strength of Cod; 3.4 Discussion; 3.4.1 Mortality in 0-Group Cod; 3.4.2 Predation; 3.4.3 Growth and Year-Class Strength; 3.4.3.1 Food Supply Affecting Survival But Not Growth; 3.4.3.2 Theoretical Analyses of Settlement, Growth, and Survival; 3.4.3.3 Growth of 0-Group Cod in Excess of Food; 3.4.4 A Recruitment Hypothesis for Cod; References.
  • 4 Growth and Mortality in Settled Atlantic Cod in Relation to Diet-Evidence for a Recruitment Mechanism4.1 Introduction; 4.1.1 Empirical Background; 4.1.2 Fish Recruitment; 4.1.3 Field Test of a Recruitment Hypothesis for Cod; 4.2 Methods; 4.2.1 Sampling; 4.2.2 Diet and Condition; 4.2.3 Statistical Analyses; 4.3 Results; 4.3.1 Abundance, Size at Settlement, and Growth in 0-Group Cod; 4.3.2 Abundance of Other Littoral Fishes and Prawns; 4.3.3 Diet and Condition in Settled Cod; 4.3.3.1 Diet-July; 4.3.3.2 Condition-July; 4.3.3.3 Location 95-July 1996.