They occur principally in areas of transition from forested to non-forested landscapes.

It occurs principally as an alteration product of inyoite, another borate mineral.

The currency devaluation principally occurred three years ago, although the Bank has been blaming it for all that time...

Waxcap grasslands occur principally in Europe, where they are declining as a result of agricultural practices.

But the ballet's deeper changes are successive, and they occur principally in the dancers' rhythm and dynamics.

This principally occurs at a nest site and when other prey for the carnivores are scarce.

And it was occurring principally among homosexuals, a stigmatized group.

Diastasis of this muscle occurs principally in two populations: newborns and pregnant women.

This horrendous phenomenon occurs principally in third countries where there is great poverty.

Phosphorylation occurs principally on Ser2 and Ser5 of the repeats, although these positions are not equivalent.