Roger M. Nisbet's Books

Consumer-Resource Dynamics

By: William W. Murdoch,Cheryl J. Briggs,Roger M. Nisbet

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Consumer-Resource Dynamics

By: William W. Murdoch,Cheryl J. Briggs,Roger M. Nisbet

Despite often violent fluctuations in nature, species extinction is rare. California red scale, a potentially devastating pest of citrus, has been suppressed for fifty years in California to extremely low yet stable densities by its controlling parasitoid. Some larch budmoth populations undergo extreme cycles; others never cycle. In Consumer-Resource Dynamics, William Murdoch, Cherie Briggs, and Roger Nisbet use these and numerous other biological examples to lay the groundwork for a unifying theory applicable to predator-prey, parasitoid-host, and other consumer-resource interactions. Throughout, the focus is on how the properties of real organisms affect population dynamics. The core of the book synthesizes and extends the authors' own models involving insect parasitoids and their hosts, and explores in depth how consumer species compete for a dynamic resource. The emerging general consumer-resource theory accounts for how consumers respond to differences among individuals in the resource population. From here the authors move to other models of consumer-resource dynamics and population dynamics in general. Consideration of empirical examples, key concepts, and a necessary review of simple models is followed by examination of spatial processes affecting dynamics, and of implications for biological control of pest organisms. The book establishes the coherence and broad applicability of consumer-resource theory and connects it to single-species dynamics. It closes by stressing the theory's value as a hierarchy of models that allows both generality and testability in the field.

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479

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Princeton University Press

Published Date

ISBN 10

1400847257

ISBN 13

9781400847259

Estimation of Mortality Rates in Stage-Structured Population

By: Simon N. Wood,Roger M. Nisbet

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Estimation of Mortality Rates in Stage-Structured Population

By: Simon N. Wood,Roger M. Nisbet

The stated aims of the Lecture Notes in Biomathematics allow for work that is "unfinished or tentative". This volume is offered in that spirit. The problem addressed is one of the classics of statistical ecology, the estimation of mortality rates from stage-frequency data, but in tackling it we found ourselves making use of ideas and techniques very different from those we expected to use, and in which we had no previous experience. Specifically we drifted towards consideration of some rather specific curve and surface fitting and smoothing techniques. We think we have made some progress (otherwise why publish?), but are acutely aware of the conceptual and statistical clumsiness of parts of the work. Readers with sufficient expertise to be offended should regard the monograph as a challenge to do better. The central theme in this book is a somewhat complex algorithm for mortality estimation (detailed at the end of Chapter 4). Because of its complexity, the job of implementing the method is intimidating. Any reader interested in using the methods may obtain copies of our code as follows: Intelligible Structured Code 1. Hutchinson and deHoog's algorithm for fitting smoothing splines by cross validation 2. Cubic covariant area-approximating splines 3. Cubic interpolating splines 4. Cubic area matching splines 5. Hyman's algorithm for monotonic interpolation based on cubic splines. Prototype User-Hostile Code 6. Positive constrained interpolation 7. Positive constrained area matching 8. The "full method" from chapter 4 9. The "simpler" method from chapter 4.

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113

Publisher

Springer Science & Business Media

Published Date

ISBN 10

3642499791

ISBN 13

9783642499791

Consumer-resource Dynamics

By: William W. Murdoch,Cheryl J. Briggs,Roger M. Nisbet

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Consumer-resource Dynamics

By: William W. Murdoch,Cheryl J. Briggs,Roger M. Nisbet

Average ratings

N/A

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Solve jigsaw puzzle

Age

Page Count

479

Publisher

Princeton University Press

Published Date

ISBN 10

0691006571

ISBN 13

9780691006574

Book's by Roger M. Nisbet

Consumer-Resource Dynamics

Consumer-Resource Dynamics

Estimation of Mortality Rates in Stage-Structured Population

Estimation of Mortality Rates in Stage-Structured Population

Consumer-resource Dynamics

Consumer-resource Dynamics

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