Migration Change (Actual) (IMAGE) Oregon State University Caption This map shows how states' shares of Mexican immigrants changed from 1994 to 2011. New research has found that increased border enforcement alters traditional settlement patterns and leads more Mexican immigrants to settle in states beyond the borders. Credit Credit: Oregon State University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.