Books  Data Analysis & Modelling  Data Analysis & Statistics 

Exactly Solvable Models of Biological Invasion

Series: Mathematical Biology & Medicine Series

By: Sergei V Petrovskii and Bai-Lian Li

217 pages, no illustrations

CRC Press

Hardback | Dec 2005 | #154987 | ISBN: 1584885211
Temporarily out of stock: order now to get this when available Details
NHBS Price: £90.99 $117/€107 approx

About this book

Much of our current knowledge on biological invasion was derived from field studies, but many recent advances relied heavily on mathematics and computing, particularly mathematical modeling. While numerical simulations are clearly a useful approach, they have some serious drawbacks. Approximations errors and the number of parameter values can have a significant impact on the simulation results, the extent of which often remains obscure. Such difficulties do not arise, however, when the problem can be solved analytically.

Exactly Solvable Models of Biological Invasion demonstrates the advantages and methods of obtaining exact solutions of partial differential equations that describe nonlinear problems encountered in the study of invasive species spread. With emphasis on PDEs of diffusion-reaction type, the authors present a comprehensive collection of exactly solvable models and a unified, self-contained description of the relevant mathematical methods. In doing so, they also provide new insight into important issues such as the impact of the Allee effect, the impact of predation, and the interplay between different modes of species dispersal. Full calculation details make this presentation accessible to biologists as well as applied mathematicians, and a range of ecological examples and applications demonstrate the utility of exact methods in practice.

Exact solutions provide an immediate, complete description of system dynamics for a wide class of initial conditions and serve as a convenient tool for testing numerical algorithms and codes used in more specialized studies. This book lays the groundwork for bringing the power of exactly solvable models to bear on real-world ecological problems.


INTRODUCTIONWhy exactly solvable models are importantIntra- and inter-species interactions and local population dynamicsBasic mechanisms of species transportBiological invasion: main facts and constituting examplesMODELS OF BIOLOGICAL INVASIONDiffusion-reaction equationsIntegral-difference modelsSpace-discrete modelsStochastic modelsConcluding remarksBASIC METHODS AND RELEVANT EXAMPLESThe Cole-Hopf transformation and the Burgers equation as a paradigmFurther application of the Cole-Hopf transformationMethod of piecewise linear approximationExact solutions of a generalized Fisher equationMore about ansatzSINGLE-SPECIES MODELSImpact of advection and migrationAccelerating population wavesThe problem of critical aggregationDENSITY-DEPENDENT DIFFUSIONThe Aronson-Newman solution and its generalizationStratified diffusion and the Allee effectMODELS OF INTERACTING POPULATIONSExact solution for a diffusive predator-prey systemMigration waves in a resource-consumer systemSOME ALTERNATIVE AND COMPLEMENTARY APPROACHESWave speed and the eigenvalue problemConvergence of the initial conditionsConvergence and the paradox of linearizationApplication of the comparison principleECOLOGICAL EXAMPLES AND APPLICATIONSInvasion of Japanese beetle in the United StatesMount St. Helens recolonization and the impact of predationStratified diffusion and rapid plant invasionAPPENDIX: BASIC BACKGROUND MATHEMATICSOrdinary differential equations and their solutionsPhase plane and stability analysisDiffusion equationReferencesIndex

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