Effects of habitat destruction in model ecosystems: Parity law depending on species richness

被引:7
|
作者
Nakagiri, Nariyuki [2 ]
Sakisaka, Yukio [3 ]
Togashi, Tatsuya [4 ]
Morita, Satoru [1 ]
Tainaka, Kei-ichi [1 ]
机构
[1] Shizuoka Univ, Dept Syst Engn, Naka Ku, Hamamatsu, Shizuoka 4328561, Japan
[2] Univ Hyogo, Sch Human Sci & Environm, Himeji, Hyogo 6700092, Japan
[3] Ibaraki Prefectural Univ Hlth Sci, Ctr Humanities & Sci, Ami, Ibaraki 3000394, Japan
[4] Chiba Univ, Marine Biosyst Res Ctr, Kamogawa, Chiba 2995502, Japan
关键词
Lattice ecosystem; Habitat destruction; Parity law; Percolation network; ECOLOGICAL INTERACTIONS; EXTINCTION THRESHOLDS; LATTICE ECOSYSTEMS; FRAGMENTATION; PERTURBATION; PERCOLATION; POPULATION; DISPERSAL; DYNAMICS; PATTERNS;
D O I
10.1016/j.ecoinf.2010.05.003
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Habitat destruction is one of the primary causes of recent mass extinction of biospecies. Even if the destruction is limited to a local and small area, the cumulative destruction increases the risk of extinction. In this paper, we explore the effect of habitat destruction in lattice ecosystems composed of multiple species. Simulations reveal a parity law: the response of the system shows different behaviors by whether the species richness of system is even or odd. The mean-field theory partially predicts such a parity law. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:241 / 247
页数:7
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