Border Fence (image) American Institute of Biological Sciences Share Print E-Mail Caption At the US-Mexico border at the Coronado National Memorial/Roosevelt Easement. The wall and wide patrol road cause habitat fragmentation, threatening the well-being of many species. Credit Matt Clark/Defenders of Wildlife Usage Restrictions None Share Print E-Mail 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.