Modelling the population dynamics of the Mt. Graham red squirrel: Can we predict its future in a changing environment with multiple threats?

2006 ◽  
Vol 131 (1) ◽  
pp. 121-131 ◽  
Author(s):  
S.P. Rushton ◽  
D.J.A. Wood ◽  
P.W.W. Lurz ◽  
J.L. Koprowski
Keyword(s):  
Population Dynamics ◽  
Red Squirrel ◽  
Changing Environment

scholarly journals Population Dynamics in a Changing Environment: Random versus Periodic Switching

2020 ◽  
Vol 125 (4) ◽  
Author(s):  
Ami Taitelbaum ◽  
Robert West ◽  
Michael Assaf ◽  
Mauro Mobilia
Keyword(s):  
Population Dynamics ◽  
Changing Environment ◽  
Periodic Switching

On the existence, uniqueness and computational analysis of a fractional order spatial model for the squirrel population dynamics under the Atangana-Baleanu-Caputo operator

2021 ◽  
Vol 8 (3) ◽  
pp. 432-443
Author(s):  
O. M. Ogunmiloro ◽  
◽  
S. E. Fadugba ◽  
E. O. Titiloye ◽  
◽  
...  
Keyword(s):  
Population Dynamics ◽  
Fractional Order ◽  
Spatial Model ◽  
Computational Cost ◽  
Red Squirrel ◽  
Transform Method ◽  
Red Squirrels ◽  
Order Analysis ◽  
Differential Transform ◽  
Low Computational Cost

In this paper, we examine the fractional order analysis of a diffusion competition spatial model describing the interactions between the externally introduced grey and local red squirrel under the Atangana-Baleanu-Caputo (ABC) sense. Also, we establish the existence and uniqueness analysis of the fractional order spatial model of the squirrel population dynamics, while the numerical computation of the fractional order spatial model is carried out using the two dimensional Fractional Order Differential Transform Method (FODTM). Simulations of the variables of the model reveal that as the system evolves, the grey squirrels increase in density with increase in time, while the red squirrels decrease in density with increase in time. Also the simulations show that the FODTM is efficient and convergent with low computational cost.

scholarly journals European red squirrel population dynamics driven by squirrelpox at a gray squirrel invasion interface

2014 ◽  
Vol 4 (19) ◽  
pp. 3788-3799 ◽  
Author(s):  
Julian Chantrey ◽  
Timothy D. Dale ◽  
Jonathan M. Read ◽  
Steve White ◽  
Fiona Whitfield ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Gray Squirrel ◽  
Red Squirrel
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