Whales and Butterflies: The Migration Effect (8 of 9) (image) American Association for the Advancement of Science Share Print E-Mail Caption This image shows African armyworm moths (Spodoptera exempta) flying across Kenya, as seen on an entomological radar display (distance between the range-rings on radar display = 463 m). The dense aerial populations, produced by convergent wind-flows, can result in high concentrations of moths on the ground, mass egg-laying and, ultimately, serious outbreaks of the "armyworm" caterpillars. This has resulted in immense grazing pressure on wintering, breeding and intermediate stop-over locations that has led to both overgrazing of natural vegetation and conflicts with agriculture. 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 [© Don Reynolds] 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.