How far can the terms migration, ecesis, and competition, as used by.    From Wordnik.com.  [Introduction to the Science of Sociology] Reference

Invasion is the complete or complex process of which migration, ecesis.    From Wordnik.com.  [Introduction to the Science of Sociology] Reference

They may affect invasion either by limiting migration or by preventing ecesis.    From Wordnik.com.  [Introduction to the Science of Sociology] Reference

Invasion into a new area or a plant community begins with migration when this is followed by ecesis.    From Wordnik.com.  [Introduction to the Science of Sociology] Reference

In an area already occupied by plants, ecesis and competition are concomitant and quickly produce reactions.    From Wordnik.com.  [Introduction to the Science of Sociology] Reference

They restrict or prevent ecesis either by the destruction of invaders or by placing them at a disadvantage with respect to the occupants.    From Wordnik.com.  [Introduction to the Science of Sociology] Reference

The absence of pollinating insects is sometimes a curious barrier to the complete ecesis of species far out of their usual habitat or region.    From Wordnik.com.  [Introduction to the Science of Sociology] Reference

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.    From Wordnik.com.  [Introduction to the Science of Sociology] Reference

In new areas, ecesis produces reaction (the effect which a plant or a community exerts upon its habitat) at once, and this is followed by aggregation and competition, with increasing reaction.    From Wordnik.com.  [Introduction to the Science of Sociology] Reference

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.    From Wordnik.com.  [Introduction to the Science of Sociology] Reference

The significant feature of continuous invasion is that an outpost may be repeatedly reinforced, permitting rapid aggregation and ecesis, and the production of new centers from which the species may be extended over a wide area.    From Wordnik.com.  [Introduction to the Science of Sociology] Reference