The effect of tree diffusion in a two-dimensional continuous model for Easter Island

被引:1
|
作者
Takacs, Balint [1 ]
Horvath, Robert [2 ,3 ]
Farago, Istvan [1 ,3 ]
机构
[1] Eotvos Lorand Univ, Dept Appl Anal & Computat Math, Pazmany Peter Stny 1-C, H-1117 Budapest, Hungary
[2] Budapest Univ Technol & Econ, Dept Anal, Egry J U 1, H-1111 Budapest, Hungary
[3] MTA ELTE NumNet Res Grp, Budapest, Hungary
关键词
Differential equations; Stability; Easter Island; Modeling; Diffusion; Finite element method; RETHINKING;
D O I
10.1007/s40879-018-0276-3
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We consider a two-dimensional continuous model that describes the ecology of Easter Island. We show that the increase of the parameter corresponding to the diffusion of trees on the island has a stabilizing effect on the system, potentially preventing the collapse of island's ecology. Next we give analytic proofs for these statements, and conduct numerical experiments that confirm these results.
引用
收藏
页码:845 / 857
页数:13
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