کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5102449 1480083 2018 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cellular automaton for migration in ecosystem: Application of traffic model to a predator-prey system
ترجمه فارسی عنوان
اتوماتیک سلولی برای مهاجرت در اکوسیستم: استفاده از مدل ترافیکی به یک سیستم شکارچی شکارچی
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
چکیده انگلیسی
In most cases, physicists have studied the migration of biospecies by the use of random walk. In the present article, we apply cellular automaton of traffic model. For simplicity, we deal with an ecosystem contains a prey and predator, and use one-dimensional lattice with two layers. Preys stay on the first layer, but predators uni-directionally move on the second layer. The spatial and temporal evolution is numerically explored. It is shown that the migration has the important effect on populations of both prey and predator. Without migration, the phase transition between a prey-phase and coexisting-phase occurs. In contrast, the phase transition disappears by migration. This is because predator can survive due to migration. We find another phase transition for spatial distribution: in one phase, prey and predator form a stripe pattern of condensation and rarefaction, while in the other phase, they uniformly distribute. The self-organized stripe may be similar to the migration patterns in real ecosystems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 490, 15 January 2018, Pages 803-807
نویسندگان
, ,