Migration in an age structured population References
the time spent in a given area and models the transition rates between two areas as a function of age. References. [1] J.M.Cushing, An introduction to structured ...
[6] Rafael Bravo De La Parra, Eva Sanchez, Ovide Arino, Pierre Auger. A discrete model with density dependent fast migration. Mathematical Biosciences 157 (1999) 91-109.
Ali Moussaoui1 . Fish populations are examples where in general migratory effects play an essential role. Most fishes are born in some place where adults meet during the reproduction season and mature in other places, the nurseries. In this paper, we introduce a linear time discrete model for age structured population with migration between two locations or patches. Birth is allowed in each patch.in two specific areas. It only takes into consideration the time spent in a given area and models the transition rates between two areas as a function of age.
References [1] J.M.Cushing, An introduction to structured population dynamics. University of Arizona, Tucson , Arizona. [2] Dominique Pelletier and Pierre magal : Dynamicals Of migratory population under different fishing effort allocation schemes in time and space. Can.J.Aquat.Sci., 53,1996 [3] Luis Sanz, Rafael Bravo De La Parra, Time Scales in a nonautonomous linear discrete model. Mathematicals Models and Methods in Applied Sciences Vol.11, No 7 (2001) 1203- 1235. [4] Luis Sanz, Rafael Bravo De La Parra, Variables aggregation in a time discrete linear model. Mathematical Biosciences 157 (1999)111-146. [5] . O.Arino, W.V.Smith: Migration in age structured population. Mathematical Models and Methods in Applied Sciences. Vol 8, No 5 (1998) 905-925. 1
Department of Mathematics, University of Tlemcen , Algeria (e-mail: ).
AICME II abstracts. Numerical study of a structured population model in an environment with a dynamical food-source. Oscar Angulo1 and J.C. López-Marcos2 .
populations, Population dynamics, Time scales, Semigroup theory. This work has .... x+z= -l~M(U)~~(U, t) - lTM(u)q(u, t>, aq z+z= -Ms(a)v(a, t) + f KS - MS(~) q(a, t),. I. (91. (10) .... (a > 0, t > O), p(o, t) = /'â P*(a)p(a,t) da + att>p + gc(t)>
fected, and 0 otherwise. Then the changed Malthus ... wise. In terms of the matrix Ψ(w) := ân i,j=1 wijRij, the control effect on the community matrix can be ...
to fishermen on Lake Volta, or adolescent girls working as porters ('kayayee') ...... Great Lakes region led to the breakdown of CEPGL. ...... rainy months. Ghana.
model for the sexual phase of monogonont rotifers, J.Math.Biol., 45, ... Pure and Applied Mathematics, Marcel Dekker Inc., New York and. Basel 1985. 10-Cal-a.
Centre of Excellence for Research on Immigration, Integration and Cultural Diversity ... immigrants located in the more developed regions of the world; Europe and ... exports, imports, information and capital are encouraged to operate in a relatively
J. Galeano1 , M.A. MuËnoz2 , C. Castellano3 and J. M. Iriondo4. Complementary to the discovery and ... bridge University Press, Cambridge. [2] Eden, M., 1961, ...
blocks such as static gains, PIDs, and fixed-order transfer functions. Yet this library .... Structured Hâ Program: Tune the free parameters of C(s) := Diag(C1(s),...
Dec 7, 2007 - a representative sample of the populations of France, the UK, Germany, Italy, ... of a number of other studies in various populations9,15,16. Furthermore, there is at .... face-to-face methodology in this case. Categorical values ...
Mathematical modeling and computer simulations. ... [2] Clark, C.W. Mathematical bioeconomics: the optimal manage- ment of ... Pure and Applied Mathematics.
7 mars 2015 - ... depuis 2012, l'afflux de populations déplacées en provenance du Nord du ... ces actes de terrorismes, le plus marquant fut celui de l'ile de ...
7 mars 2015 - Le contexte sécuritaire de la région de Diffa a connu un changement notoire depuis les évènements de Février 2015, où des attaques de la ...
Most mathematical models examine the dynamics of a single pathogen in a single ... of the model using underlying allometric relationships and life history ... 1Department of Ecology and Evolutionary Biology, Eno Hall, Princeton University,.
to generate the codewords; c) Gray code combined with phase shifting: the same ..... levels. A total number of four Gray patterns are projected in order to label 16 ... with the codewords extracted from the Hillbert curve; h) The resulting n-ary ....
tained redundant information in each cell and communication, and demanded ..... the root cell of which is the most northern and western cell. However, at the ...
In previous studies performed in our laboratory, hybrid active-passive absorbers have been imple- mented in a test section of a channel flow to achieve acoustic ...
Kalle Parvinen1 . We study the evolution of dispersal in a structured metapopulation model. The metapopulation consists of a large number of local populations ...
