Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-27T10:39:19.946Z Has data issue: false hasContentIssue false

Population dynamics with age-dependent diffusion and death rates

Published online by Cambridge University Press:  21 February 2013

M. AL-JARARHA
Affiliation:
Department of Mathematics and Statistics, Memorial University of Newfoundland, St. John's, Newfoundland, Canada, A1C 5S7 email: [email protected]
CHUNHUA OU
Affiliation:
Department of Mathematics and Statistics, Memorial University of Newfoundland, St. John's, Newfoundland, Canada, A1C 5S7 email: [email protected]

Abstract

In this paper we investigate the population dynamics of a species with age structure in the case where the diffusion and death rates of the matured population are both age-dependent. We develop a new application of the age-structure technique in terms of an integral equation. For unbounded spatial domains, we study the existence of travelling waves, whilst in bounded domains, we investigate the existence of positive steady-state solutions and their stability.

Type
Papers
Copyright
Copyright © Cambridge University Press 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1]Al-Omari, J. F. M. & Gourley, S. A. (2002) Monotone traveling fronts in an age-structured reaction-diffusion model of a single species. J. Math. Biol. 45, 294312.CrossRefGoogle Scholar
[2]Diekmann, O. (1978) Thresholds and traveling waves for the geographical spread of infection. J. Math Biol. 6, 109130.Google Scholar
[3]Diekmann, O. & Kapper, H. G. (2003) On the bounded solutions of a nonlinear convolution equations. Nonlinear Anal. Theory Method Appl. 2, 721737.Google Scholar
[4]Gourley, S. A. & Kuang, Y. (2003) Wavefronts and global stability in a time-delayed population with stage structure. R. Soc. Lond. Proc. Ser. A Math. Phys. Eng. Sci. 459 (2034), 15631579.Google Scholar
[5]Gourley, S. A. & So, J. W.-H. (2003) Extinction and wavefront propagation in a reaction-diffusion model of a structured population with distributed maturation delay. Proc. R. Soc. Edinburgh 133A, 527548.Google Scholar
[6]Gourley, S. A., So, J. W.-H. & Wu, J. (2004) Non- locality of reaction-diffusion equations induced by delay: Biological modeling and nonlinear dynamics. J. Math. Sci. 124 (4), 51195153.Google Scholar
[7]Gourley, S. A. & Wu, J. (2006) Delayed non-local diffusive systems in biological invasion and disease spread. In: Nonlinear Dynamics and Evolution Equations, Vol. 48, Fields Institute Communications; American Mathematical Society, Providence, RI, pp. 137200.Google Scholar
[8]Hale, J. K. (1988) Asymptotic Behavior of Dissipative Systems (Math. Survey and Monographs), Vol. 25, American Mathematical Society, Providence, RI.Google Scholar
[9]Hirsch, M. W. (1984) The dynamical systems approach to differential equations. AMS 11 (1), 164.Google Scholar
[10]Huddleston, J. V. (1983) Population dynamics with age and time-dependent birth and death rates. Bull. Math. Biol. 45 (5), 827836.Google Scholar
[11]Jin, Y. & Zhao, X.-Q. (2009) Spatial dynamics of a nonlocal periodic reaction-diffusion model with stage structure. SIAM J. Math. Anal. 40 (6), 24962516.Google Scholar
[12]Liang, D., So, J. W.-H., Zhang, F. & Zou, X. (2003) Population dynamics models with nonlocal delay on bounded domains and their numerical computation. Differ. Equ. Dyn. Syst. 11 (1&2), 117139.Google Scholar
[13]Liang, D. & Wu, J. (2003) Travelling waves and numerical approximations in a reaction advection diffusion equation with nonlocal delayed effects. J. Nonlinear Sci. 13, 289310.Google Scholar
[14]Mei, M. & So, J. W.-H. (2008) Stability of strong travelling waves for non-local time-delayed reaction diffusion equation. Proc. R. Soc. Edinburgh 138A, 551568.Google Scholar
[15]Metz, J. A. J. & Diekmann, O. (1986) The Dynamics of Physiologically Structured Populations. Metz, J. A. J. & Dekmann, O. (editors), Springer-Verlag, Berlin, Heidelberg, Germany.Google Scholar
[16]Ou, C. & Wu, J. (2005) Existence and uniqueness of a wavefront in a delayed hyperbolic-parabolic model. Nonlinear Anal. 63 (3), 364387.Google Scholar
[17]Ou, C. & Wu, J. (2006) Spatial spread of rabies revisited: Influence of age-dependent diffusion on nonlinear dynamics. SIAM J. Appl. Math. 67 (1), 138163.Google Scholar
[18]Ou, C. & Wu, J. (2007) Persistence of wavefronts in delayed nonlocal reaction-diffusion equation. J. Differ. Equ. 235, 219261.Google Scholar
[19]Ou, C. & Wu, J. (2007) Traveling wavefronts in a delayed food-limited population model. SIAM J. Math. Anal. 39 (1), 103125.Google Scholar
[20]Smith, H. L. (1995) Monotone Dynamical Systems: An Introduction to the Theory of Competitive and Cooperative Systems, Math Surveys and Monographs. Vol. 41, American Mathematical Society, Providence, RI.Google Scholar
[21]Smith, H. & Thieme, H. (1991) Strongly order preserving semiflows generated by functional differential equations. J. Differ. Equ. 93, 332363.Google Scholar
[22]So, J. W.-H., Wu, J. & Zou, X. (2001) A reaction-diffusion model for a single species with age-structured. I Travelling wavefronts on unbounded domains. Proc. R. Soc. Lond. A 457, 18411853.CrossRefGoogle Scholar
[23]Thieme, H. R. (1979) Asymptotic estimates of the solutions of nonlinear integral equations and asymptotic speeds for the spread of populations. J. Reine Angew. Math. 306, 94121.Google Scholar
[24]Thieme, H. R. (1993) Persistence under relaxed point-disspativity with applications to an endemic model. SIAM J. Math. Anal. 24 (2), 407435.Google Scholar
[25]Thieme, H. R. & Zhao, X.-Q. (2003) Asymptotic speeds of spread and traveling waves for integral equations and delayed reaction-diffusion model. J. Differ. Equ. 195, 430470.Google Scholar
[26]Vaidya, N. K. & Wu, J. (2008) Modeling spruce budworm population revisited: Impact of physiological structure on outbreak control. Bull. Math. Biol. 70, 769784.Google Scholar
[27]Wu, J. (1996) Theory and Applications of Partial Functional Differential Equations (Applied Mathematical Sciences). 119, Springer-Verlag, New York, NY.Google Scholar
[28]Xu, D. & Zhao, X.-Q. (2003) A nonlocal reaction-diffusion population model with stage structure. Can. Appl. Math. Q. 11 (3), 303319.Google Scholar
[29]Zhao, X.-Q. (1996) Global attractivity and stability in some monotone discrete dynamical systems. Bull. Austral. Math Soc. 53, 305324.CrossRefGoogle Scholar
[30]Zhao, X.-Q. (2003) Dynamical Systems in Population Biology. Springer-Verlag, New York, NY.Google Scholar