单词 | ecesis |
例句 | Invasion into a new area or a plant community begins with migration when this is followed by ecesis. Introduction to the Science of Sociology In an area already occupied by plants, ecesis and competition are concomitant and quickly produce reactions. Introduction to the Science of Sociology They may affect invasion either by limiting migration or by preventing ecesis. Introduction to the Science of Sociology Man and animals operate as marked barriers to ecesis wherever they alter conditions unfavorably to invaders or where they turn the scale in competition by cultivating, grazing, camping, parasitism, etc. Introduction to the Science of Sociology The absence of pollinating insects is sometimes a curious barrier to the complete ecesis of species far out of their usual habitat or region. Introduction to the Science of Sociology In the first place, an association acts as a barrier to the ecesis of species invading it from associations of another type, on account of the physical differences of the habitats. Introduction to the Science of Sociology They restrict or prevent ecesis either by the destruction of invaders or by placing them at a disadvantage with respect to the occupants. Introduction to the Science of Sociology |
随便看 |
英语例句辞典收录了117811条英语例句在线翻译词条,基本涵盖了全部常用单词及词组的例句翻译及用法,是英语学习的有利工具。