| 翻訳と辞書 |
Wa-Tor
Wa-Tor is a population dynamics simulation devised by Alexander Keewatin Dewdney〔Dewdney 1984〕 and presented in the December 1984 issue of Scientific American in a 5-page article entitled "Computer Recreations: Sharks and fish wage an ecological war on the toroidal planet Wa-Tor".
Wa-Tor is usually implemented as a 2-dimensional grid with 3 colours, one for fish, one for sharks and one for empty water. If a creature moves past the edge of the grid, it reappears on the opposite side. The sharks are predatory and eat the fish. Both sharks and fish live, move, reproduce and die in Wa-Tor according to the simple rules defined below. From these simple rules, complex emergent behavior can be seen to arise.
==The evolution of Wa-Tor==
The balance of this ecosystem is very delicate: the populations of two species can follow hugely different cycles depending on the given parameters (such as reproduction cycles and the time period in which a shark must eat to avoid starvation) as well as starting positions of each being. We may go from both species being endangered to an abundance of one or both.
When the prey are numerous, predators can reproduce rapidly. But this increase in turn increases the number of prey hunted and the population of the prey decreases. By becoming rarer prey, predators begin to starve and die of starvation, decreasing their population and easing the pressure on hunting prey. The prey (and in time predator) can then go back to rapidly reproducing as the cycle repeats itself.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Wa-Tor」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|