ecesis

1 Invasion into a new area or a plant community begins with migration when this is followed by ecesis.

2 They may affect invasion either by limiting migration or by preventing ecesis.

3 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.

4 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.

5 The absence of pollinating insects is sometimes a curious barrier to the complete ecesis of species far out of their usual habitat or region.

6 In an area already occupied by plants, ecesis and competition are concomitant and quickly produce reactions.

7 They restrict or prevent ecesis either by the destruction of invaders or by placing them at a disadvantage with respect to the occupants.

8 More and more studies showed that the allelopathy of exotic plants played an important role in their successful ecesis.

越来越多的研究证明了植物化感作用在外来植物成功定居中扮演重要的角色。

1 定居

resident stationary settled sedentarily inhabitation inhabitancy domiciliation locate settle domiciliate plant make abode take up abode take up residence domicile establishment sedentariness pitch establish domiciled residentiary location residence settlement nidus fix reside domesticate seat cast anchor