By 1939 he had a list of over 1000 species introduced to his property.

A few species have been introduced outside their native range.

However, the species were most probably introduced through human interference, and not by natural means.

This is because two species of birds have been introduced.

More than 300 additional species have been introduced to date.

Then we come along and introduce competitive species, our own.

When a new species is introduced to an environment, one of two things typically happens.

The species has recently been introduced into Israel as a potential new commercial crop.

Many species have been introduced to Britain during historical times.

Several species of plant were introduced into an experimental garden.