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Ecological Characteristics of Biological Invasion in Agriculture and Forest

机译：农林生物入侵的生态特征

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摘要

Ecological characteristics of biological invasion were reviewed and discussed in this paper, covering the ecology of introduction, colonization, naturalization, spread and irruption of invasive species. Introduction of exotic pests may be realized through different ways including animal migration, air current and storm, variety introduction, trading, tourism, and even war. Successful colonization and establishment were significantly affected by the invisibility of invaded ecosystem and the invasion potential of invading species. After accommodating and adjusting to the climate and food resource in the new place, invasive species would change their requirements or the tolerant limits to the ecological factors and acclimatize themselves to the new environment. Dispersal of invasive species is the means by which new or depopulated areas are colonized and e-quilibrium diversity is established. The effect of dispersal on a population depends first on the status of the growth form of the population and the second on the presence or absence of barriers, and the vagility. The irruption of population is not a sudden event but the result of population developing process. It comes from a basic population number or a starting density from which population increased in its intrinsic rate. Favorable ecological environment is the prerequisite condition for the realization of intrinsic increase of population. The diversity and complexity of habitat ecosystem is also closely related to the outbreak of population.
机译：本文对生物入侵的生态特征进行了综述和讨论，涵盖了入侵物种的引入，定植，自然化，扩散和破坏等生态特征。可以通过不同的方式实现外来有害生物的引进，包括动物迁徙，气流和风暴，品种引进，贸易，旅游，甚至战争。成功的定居和建立受到被入侵生态系统的隐身性和被入侵物种入侵潜力的显着影响。在适应并适应新地方的气候和粮食资源之后，入侵物种将改变其需求或对生态因素的容许范围，并使其适应新环境。传播入侵物种是殖民新的或人口稀少的地区并建立电子平衡多样性的手段。分散对人口的影响首先取决于人口增长形式的状态，其次取决于是否存在障碍以及易变性。人口激增不是突发事件，而是人口发展过程的结果。它来自基本人口数或人口的内在速率从其增加的起始密度。良好的生态环境是实现人口内在增长的前提条件。栖息地生态系统的多样性和复杂性也与人口的爆发密切相关。

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