Definition of "ecesis" []

• The successful establishment of a plant or animal species in a habitat. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Invasion is the complete or complex process of which migration, ecesis"
• "They restrict or prevent ecesis either by the destruction of invaders or by placing them at a disadvantage with respect to the occupants."
• "Invasion into a new area or a plant community begins with migration when this is followed by ecesis."