对生物入侵的几点思考

生物入侵涉及异地迁徙及建群等复杂问题,涉及个体、种群、群落、生态系统等生态学的各个层次,又必不可少地要深入地去探索生物入侵过程中的快速进化和分子生态学基础。生物系统的超级复杂性加上环境和人为因素的极度随机性,充分显示了在这一领域从事研究的艰巨性和挑战性。入侵种具有两面性,因此,预防比治理更为关键。为了应对生物入侵,有待建立完善的国家和地区的防控系统、提高技术水平并加强有关诸多经济因素对生物入侵的影响的研究。

A few thoughts about biological invasions

Biological invasion concerns long distance migration,population establishment and other complicated problems,it is also related to different levels of ecology,e.g.,individuals,populations,communities and ecosystems,nevertheless,it should also approach rapid evolution and the molecular ecological mechanism during the invasion processes.The super-complexity of the biological system,plus the super-stochastic nature of human factors,makes the approaches in this area very difficult and challenging.The invasive species have a double faced characteristics,easy to control at the early stage,but extremely difficult when it spread and caused economic or ecological losses.Therefore,it is more reasonable and feasible to prevent than control.To face the challenge of biological invasions,to establish integrated prevention and control systems at both national and provincial levels,improve new technologies and to investigate the impact of economic factors on biological invasions are suggested.