Ontario is one such province that uses an extensive method to define ecological units.

Well, maybe so; a lake was an ecological unit, and the community of living things within it might have a mutual interest in promoting it.

The Public Trust Doctrine has also been expanded to protect lands in their natural state to serve as ecological units for scientific study.

The Russian Ministry of Defence is to set up special "ecological units" which will be given "unlimited powers to curb all environmentally destructive activities".

An ecological unit is a composite of an 'environment piece' and a 'behavior piece'.

The ecological unit is the foundation for the concept of a 'behavior setting' which was defined above.

These parks should be managed as ecological units in which the human beings are part of the equation.

An ecozone is a large sub-continental geographical division with distinct representative biotic and abiotic features in the ecological unit.

In British Columbia, Canada, old-growth forests must be maintained in each of the province's ecological units to meet biodiversity needs.

The species and variety as ecological units.