The seventh author (KRZ) was not correctly indicated as the recipient of two grants from the National Science Foundation (DEB-0815315 and DEB-1120249). In addition, multiple sections were incorrectly omitted from the Supporting Information, and references used for this information were incorrectly omitted from the References List. A file containing the missing information and references can be found on the following page: http://www.plosone.org/corrections/pone.0059499.001.cn.docx
Footnotes
Competing Interests: No competing interests declared.