An ecotone is a transition area between two biomes.It is where two communities meet and integrate.It may be narrow or wide, and it may be local (the zone between a field and forest) or regional (the transition between forest and grassland ecosystems).An ecotone may appear on the ground as a gradual blending of the two communities across a broad area, or it may manifest itself as a sharp boundary line.

Features of ecotone:

  • It has a sharp vegetation transition, with a distinct line between the two communities.

Eg: Estuary.

  • It is a zone of tension.thats why it has conditions similar to adjacent ecosystems.
  • The number and the population density of the species of an outgoing community decreases as we move away from the community or ecosystem.
  • A well-developed ecotone contains some organisms which are entirely different from that of the adjoining communities.