Cover

pdf iconDownload PDF
 

Title Page, Copyright

pdf iconDownload PDF

pp. i-vi

Contents

pdf iconDownload PDF

pp. vii-x

read more

Preface

pdf iconDownload PDF

pp. xi-xii

...I started thinking about this book after being approached by Sam Elworthy, who suggested a book based on recent food web theory, a synthesis of sorts. At about the same time, Joe Rasmussen, a friend and colleague at McGill told me that he believed no one understands recent food web theory. Taken together, I felt there was a need for such a book...

PART 1 THE PROBLEM AND THE APPROACH

read more

1. The Balance of Nature: What Is It and Why Care?

pdf iconDownload PDF

pp. 3-19

...Each spring as the sun begins to strengthen again, I walk the trail that surrounds our house. Unfailingly, I am met by the steady green carpet of plants, the chorus of songbirds, the scurrying of squirrels, and the occasional hawk presiding over the forest floor. On any spring night I may find myself awakened by the unmistakable cry of coyotes to find that...

read more

2. A Primer for Dynamical Systems

pdf iconDownload PDF

pp. 20-46

...reader will pass through this section in order to facilitate understanding of the theory developed in the rest of the book. This chapter is in no way a comprehensive review of dynamical systems. Rather, it is meant to establish familiar terminology as well as to make the reader comfortable with the broad concepts and approaches behind dynamical systems theory. I will argue that most of the mathematics and their graphical representation...

read more

3. Of Modules, Motifs, and Whole Webs

pdf iconDownload PDF

pp. 47-50

...Thus far I have motivated the problem that this book will address and laid out a mathematical primer that will aid in understanding of the chapters that follow. In the next section of the book (part 2), I proceed by considering the dynamics of important ecological modules or motifs (e.g., populations, consumer-resource interactions, food chains...

PART 2 FOOD WEB MODULES: FROM POPULATIONS TO SMALL FOOD WEBS

read more

4. Excitable and Nonexcitable Population Dynamics

pdf iconDownload PDF

pp. 53-66

...Thus far I have motivated the problem that this book will address and laid out a mathematical primer that will aid in understanding of the chapters that follow. In the next section of the book (part 2), I proceed by considering the dynamics of important ecological modules or motifs (e.g., populations, consumer-resource interactions, food chains...

read more

5. Consumer-Resource Dynamics: Building Consumptive Food Webs

pdf iconDownload PDF

pp. 67-88

...The consumer-resource interaction is one of the fundamental building blocks of food webs. Consumption interactions shunt energy and nutrients through ecological networks and play a critical role in the functioning of all ecosystems. This chapter is consistent with the last chapter in that the intention is to glean general rules from theory...

read more

6. Lagged Consumer-Resource Dynamics

pdf iconDownload PDF

pp. 89-102

...There are a number of reasons why the biology of organisms creates lagged effects on populations dynamics. Because of this, the unstructured continuous consumer-resource model in chapter 5 can be argued to miss some of the important dynamical influences of realistic biological lags. Lags occur, for example, when a population reproduces...

read more

7. Food Chains and Omnivory

pdf iconDownload PDF

pp. 103-122

...It is a natural progression for ecological theory to move beyond the consumerresource interaction in order to explore common subsystems of food webs (Holt and Loreau, 2002). In fact, May (1974a), who championed the classic whole food web matrix approach, argued that models of intermediate complexity may be a more direct path to interpreting how food...

read more

8. More Modules

pdf iconDownload PDF

pp. 123-142

...In a general analysis of networks, Milo et al. (2002) found that food webs had an excess of diamond food web modules with and without intraguild predation (figure 8.1). More recent work on whole food web data has found that these diamond and intraguild predation modules are clearly overrepresented relative to randomly constructed networks (Bascompte and Melian, 2005). As discussed in chapter 7, these whole system...

PART 3 TOWARD WHOLE SYSTEMS

read more

9. Coupling Modules in Space: A Landscape Theory

pdf iconDownload PDF

pp. 145-169

...There are several possible approaches to addressing food webs at the landscape scale. The approach advanced so far in this book is to build toward whole food webs by understanding the addition of subwebs or modules. A second, more classic approach (discussed in the next chapter) is to study large matrices (i.e., whole communities) as championed by May and others...

read more

10. Classic Food Web Theory

pdf iconDownload PDF

pp. 170-188

...To this point I have emphasized the study of ecological modules and projected to larger systems by arguing that certain modular architectures recur across spatial scales, allowing us to look at stabilizing features at the landscape scale. This approach skips the myriad detailed interactions that actually exist in real webs. The classic approach, on...

read more

11. Adding the Ecosystem

pdf iconDownload PDF

pp. 189-200

...To this point in the book, I have completely ignored the role of nutrient recycling and decomposition. Nutrient recycling and decomposition form larger-scale feedbacks at the ecosystem scale that may play a significant role in the dynamics and stability of food webs. In this brief chapter, I start to explore this fundamental problem and reconcile...

read more

12. Food Webs as Complex Adaptive Systems

pdf iconDownload PDF

pp. 201-218

...In the preceding chapters, I have attempted to weave together a theory from population level dynamics to whole-ecosystem dynamics. The picture that emerges is one in which an interaction or a subsystem, under certain conditions, acts to mute or excite other interactions or subsystems. After theoretically identifying attributes of food web structures...

Bibliography

pdf iconDownload PDF

pp. 219-234

Index

pdf iconDownload PDF

pp. 235-241