Whales and Butterflies: The Migration Effect (6 of 9) (image) American Association for the Advancement of Science Share Print E-Mail Caption Bewick's swans (Cygnus columbianus bewickii) breed in Arctic Russia and return to Western Europe in autumn. Avian influenza virus infections have been linked to the swans' foraging during autumn migration, potentially increasing terrestrial transmission in winter. This image relates to a paper that appeared in the 4 April, 2014, issue of Science, published by AAAS. The paper, by Silke Bauer at Swiss Ornithological Institute in Sempach, Switzerland, and colleagues was titled, "Migratory Animals Couple Biodiversity and Ecosystem Functioning Worldwide." Credit [© Bethany Hoye] Usage Restrictions Please cite the owner of the image when publishing. This image may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission. 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.