The Role of Body Size in Multispecies Systems

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  • Format: Hardcover
  • Copyright: 2011-11-16
  • Publisher: Academic Pr

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The general theme is being based around the ongoing European Science Foundation SIZEMIC Research Network, which has been running for several years. The network has focused on the role of body size in ecosystems and embraces a wide remit that spans all ecosystem types and a range of disciplines, from theoretical to applied ecology.

Table of Contents

Contributors to Volume 45p. xi
Prefacep. xv
Determinants of Density-Body Size Scaling Within Food Webs and Tools for Their Detection
Abstractp. 2
Introductionp. 2
Density-Mass from Different Anglesp. 4
DMR and Food Websp. 6
Trophic Positionp. 6
Gape Limitation and DMRp. 7
Discontinuities and the DMRp. 14
Statistical Issuesp. 15
Frequency Distributionp. 15
Bivariate Relationshipsp. 18
Multiple DMR in the Same Datasetp. 21
DMR and Its Detection in a Metacommunityp. 22
Study Systemp. 25
Five DMRs in a Single Systemp. 25
Cross-Community at Different Levelsp. 27
Amphibians as an Example of Discontinuous DMRp. 27
Evaluation of Methodological Performancep. 29
Conclusionsp. 30
Acknowledgementsp. 31
Referencesp. 31
Predicted Effects of Behavioural Movement and Passive Transport on Individual Growth and Community Size Structure in Marine Ecosystems
Abstractp. 42
Introductionp. 42
Methodsp. 44
Model Developmentp. 44
Growth and Mortalityp. 45
Spatial Fluxp. 48
Numerical Solutionp. 49
Parameter Choicesp. 50
Simulationsp. 50
Datap. 52
Resultsp. 53
Consequences of Behavioural Movement on Size Spectrap. 53
Life Historiesp. 54
Parameter Sensitivitiesp. 55
Consequences of Adding Abiotic Movementp. 57
Effects of Simulated Phytoplankton Bloomp. 59
Datap. 60
Discussionp. 61
Acknowledgementsp. 63
Referencesp. 63
Seeing Double: Size-Based and Taxonomic Views of Food Web Structure
Abstractp. 68
Introductionp. 68
The Allometry of Trophic Relationsp. 69
Overcoming Pitfalls Through a Plurality of Viewpointsp. 71
Individual-Based Food Webs: An Emerging Fieldp. 72
Methodsp. 74
Study Sites-The Seven Food Websp. 76
Aggregation into Different Levels of Resolution and Groupingsp. 79
Response Variables Analysedp. 82
Statistical Analysesp. 88
Resultsp. 89
Response Variables Comparedp. 89
Discussionp. 99
Individuals and Species Averages-Effects of Resolutionp. 99
Taxonomy Versus Size-Effects of Groupingp. 106
Dynamic Implications-Parameterisation of Dynamic Food Web Modelsp. 108
Caveatsp. 110
Future Directionsp. 111
Concluding Remarksp. 113
Acknowledgementsp. 113
Supplementary Figuresp. 114
Details on Regression Modelsp. 117
Referencesp. 127
Body Size, Life History and the Structure of Host-Parasitoid Networks
Abstractp. 136
An Introduction to Ecological Network Theory and Host-Parasitoid Networksp. 137
Ecological Networks and Their Role in Ecologyp. 137
Host-Parasitoid Networksp. 138
The Importance of Host-Parasitoid Networks in Ecological Researchp. 141
The Aims of This Reviewp. 143
The Structuring of Trophic Networksp. 143
What is Network Structure and How is it Determined?p. 143
Body Size as a Determinant of Food-Web Structurep. 145
The Structure of Host-Parasitoid Networksp. 147
Limitations on Host Rangep. 148
Fundamental Niches in Host-Parasitoid Networksp. 148
The Role of Phylogeny in Host-Parasitoid Network Structurep. 148
Life History and Host Rangep. 149
Egg Placementp. 149
Developmental Diapausep. 150
Realised Niche in Parasitoidsp. 151
Optimal Foragingp. 151
Maximising Host Encounter Ratep. 151
Host Quality and Offspring Fitnessp. 153
The Optimal Foraging Strategyp. 155
Parasitoid Life History and Host Electivityp. 156
Time and Egg-Limitationp. 156
The Cost of Egg or Time Limitation.p. 156
Egg-Limitation, Life History and Electivityp. 157
Time Limitation, Life History and Electivityp. 160
Handling Time and Life History in Parasitoidsp. 162
Sex Allocation and Host Qualityp. 163
The Sex Allocation Processp. 163
Allocation Strategies and Parasitoid Life Historyp. 164
Sex Allocation and Network Structurep. 164
Conclusionsp. 166
The Determinants of Fundamental Nichep. 166
The Determinants of Realised Nichep. 169
Future Research Avenues and the Effect of Spatio-Temporal Variation in Host-Parasitoid Networksp. 172
Acknowledgementsp. 174
Referencesp. 174
The Role of Body Size in Complex Food Webs: A Cold Case
Abstractp. 182
Introductionp. 183
Methodsp. 186
The Weddell Sea Data Setp. 186
Functional Consumer Classification of the Weddell Sea Food Webp. .189
Food Web Parametersp. 190
Data Analysis: Statistics, Extinction Scenarios and Robustness of Weddell Sea Food Webp. 191
Resultsp. 192
The Weddell Sea Food Web Data Setp. 192
Functional Consumer Classification of the Weddell Sea Food Webp. 194
Extinction Scenarios and Robustness of the Weddell Sea Food Webp. 197
Discussionp. 198
Implications of This Studyp. 198
The Weddell Sea Food Web and Functional Consumer Classificationp. 200
Extinction Scenarios the Robustness of the Weddell Sea Food Webp. 203
Conclusionp. 205
Acknowledgementsp. 206
Appendixp. 206
Referencesp. 216
Eco-evolutionary Dynamics of Individual-Based Food Webs
Abstractp. 226
Introductionp. 226
Material and Methodsp. 229
The Modelsp. 229
Study Area and Sampling Methods of a Large Individual-Based Food Webp. 239
Resultsp. 246
Sampling Effects in Individual-Based Food Websp. 246
Spatio-Temporal Patterns of Individual Rank in Connectivityp. 253
Effect of Total Length on Intraspecific Variance in Prey Consumptionp. 256
Expectations from Genetic and Ecological Drift to Study Diversity in Individual-Based Food Websp. 257
Effect of Intraspecific Variability on Species Level Food Web Connectancep. 259
Summary and Discussionp. 259
Models of Eco-evolutionary Dynamics as a General Frameworkp. 259
Perspectivep. 263
Acknowledgementsp. 264
Referencesp. 264
Scale Dependence of Predator-Prey Mass Ratio: Determinants and Applications
Abstractp. 270
Introductionp. 270
Size Matters to Food Websp. 270
Predator-Prey Mass Ratio: Its Use and Problemsp. 271
Goal of the Present Studyp. 276
Datap. 276
Scale Dependence of Predator-Prey Mass Ratiop. 278
Methods and Resultsp. 278
Mechanismsp. 279
Applicationp. 283
Determinants of Predator-Prey Mass Ratiop. 283
Statistical Analysisp. 283
Resultsp. 284
Applicationp. 288
Perspectivesp. 290
Other Determinants of Predator-Prey Mass Ratiop. 290
Functional Responsep. 293
Food-Web Modellingp. 296
Conclusionp. 298
Referencesp. 299
Indexp. 303
Cumulative List of Titlesp. 311
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