Sentence examples for geographical barrier from inspiring English sources

We speculated that genetic differentiation between these populations has arisen due to the geographical barrier of the high mountains, large rivers and long geographic distances between populations.

Yet, the area was not an undefeatable geographical barrier for Neolithic spread.

For example, if two identical populations were separated by a geographical barrier, how could you assess the potential for interbreeding under natural conditions?

Note that both ice-sheets probably acted as a geographical barrier for a continuous genetic flow between the northwestern and southern populations.

Despite the geographical barrier and clear morphological differentiation between the populations of the two regions, recent genetic analyses suggest maintenance of genetic flow.

The Euphrates has acted as a geographical barrier between Isis fighters who have seized the river's northern bank, and pro-government forces who are attempting to move closer to Ramadi from the other side.

Many function as community centres and assist their members in overcoming economic, social and geographical barriers.

The system works and within it, durable friendships blossom which break down both club and geographical barriers.

In addition to breaking down these geographical barriers, drones can similarly help dissolve the barrier between art and audience.

Within each race, religious, cultural and geographical barriers fostered other endogamous, or inbreeding, populations that led to the ethnic groups.

Japan's first "encounter" with Latin America was triggered by immigration the flow of people broke geographical barriers.