生态环境学报2011，Vol.20Issue(11)：1638-1646,9.
基于景观中性模型的不同竞争力外来种入侵对栖息地毁坏的响应
Response of exotic species with different competitive ability to habitat destruction based on landscape neutral model
摘要
Abstract
Biological invasion and habitat destruction, especially for their interactive effects are recognized as the major factors of species extinction. Based on dispersal-competition trade-off, we have simulated the effects of competitive abilities on invasion and the responses of alien species with different competitive abilities to habitat destruction by incorporating cellular automaton with landscape neutral model. The results show that: 1) the introductions of alien species will threaten the species with similar competitive ability firstly, and then the poorer competitors. 2) Whether the invasion will succeed or fail is dependent on the interaction between habitat destruction and the competition between native and alien species. When habitat fragmentation promotes the native superior competitor next to exotic species, it will inhibit invasion. On the contrary, when it inhibits the superior one, it will promote invasion. When habitat loss promotes the superior one, it will inhibit invasion. However, when it inhibits the superior one, it will promote firstly, and then inhibit invasion as it increases. To prevent invasion of exotic species with different competitive abilities, different management policies of habitat conservation should be taken, furthermore, their adjacent superior competitors should be protected and further developed.关键词
栖息地毁坏/外来种/景观中性模型/元胞自动机/竞争力Key words
habitat destruction/ exotic species/ Landscape Neutral Model/ Cellular Automaton/ competitive ability分类
生物科学引用本文复制引用
刘会玉,林振山,齐相贞,沈竟..基于景观中性模型的不同竞争力外来种入侵对栖息地毁坏的响应[J].生态环境学报,2011,20(11):1638-1646,9.基金项目
国家自然科学基金项目(40901094) （40901094）
高等学校博士学科点专项科研基金资助课题(20093207120009) （20093207120009）
江苏省高校自然科学基金(08KJB170001) （08KJB170001）
