img

官方微信

高级检索

中国沙漠 ›› 2001, Vol. 21 ›› Issue (3): 296-299.

• 实验研究 • 上一篇    下一篇

斑块生境下逃亡共存模型及其计算机模拟试验研究

徐彩琳1,2,3, 李自珍1,2,3, 张景光3, 王新平3   

  1. 1. 兰州大学干旱农业生态国家重点实验室, 甘肃兰州 730000;
    2. 兰州大学数学系, 甘肃兰州 730000;
    3. 中国科学院寒区旱区环境与工程研究所沙坡头沙漠试验研究站, 甘肃兰州 730000
  • 收稿日期:2000-12-15 修回日期:2001-02-13 出版日期:2001-09-20 发布日期:2001-09-20
  • 作者简介:徐彩琳(1974-),女(汉族),内蒙古包头市人,博士生,主要从事数学生态研究工作。
  • 基金资助:
    国家自然科学基金项目(3997013530070139);中国科学院沙波头站开放基金项目(200004)

Escape Coexistence Model in Patch Habitat and Researches on Its Computer Imitating Experiment

XU Cai-lin1,2,3, LI Zi-zhen1,2,3, ZHANG Jing-guang3, WANG Xin-ping3   

  1. 1. State Key Laboratory of Arid Agroecology, Lanzhou University, L anzhou 730000, China;
    2. Department of Methematics, Lanzhou University, Lanzhou 7 30000, China;
    3. Shapotou Desert Research
  • Received:2000-12-15 Revised:2001-02-13 Online:2001-09-20 Published:2001-09-20

摘要: 斑块生境下的逃亡共存是生物种的一种生存对策,文章在Tilman工作的基础上,建立了斑块生境中生物种逃亡共存的新数学模型,并对两种群的动态行为进行了计算机模拟试验研究,模拟计算结果表明,斑块生境中共存的两物种,其竞争能力的排序与其扩散能力的排序恰好相反;种间作用机理分析表明,这两个种能力的负相关是其种群内生物个体生理负耦联在群体水平上的反映,是个体在长期进化过程中形成的一种生存对策,也是其自然选择的必然结果。

关键词: 斑块生境, 逃亡共存, 计算机模拟, 生理负耦联

Abstract: Escape coexistence in patch habitat is one of survival strategies of living species. Based on Tilman's work, the new mathematical model of escape coexistence in patch habitat has been set up in this dissertation, and the dynamic behavior of two populations has been imitated and studied by computer. The simulating result demonstrates that that of two coexistence populations is contrary to each other, which is the ordination of competition ability and of proliferation capability. By analyzing the mechanism of interaction between populations, we see that opposite interaction of two populations in these two capabilities is a mirror of biological individual physiological opposite connection on the population level, one of survival tact formed during the longtime evolution process, and the inevitable result of natural selection.

Key words: patch habitat, escape coexistence, computer imitate, physiological opposite connection

中图分类号: