Correction for Immler et al., Resolving variation in the reproductive tradeoff between sperm size and number

EVOLUTION Correction for “Resolving variation in the reproductive tradeoff between sperm size and number,” by Simone Immler, Scott Pitnick, Geoff A. Parker, Kate L. Durrant, Stefan Lüpold, Sara Calhim, and Tim R. Birkhead, which appeared in issue 13, March 29, 2011, of Proc Natl Acad Sci USA (108:5325–5330; first published March 14, 2011; 10.1073/pnas.1009059108).

The authors note that, due to a printer's error, the affiliation for Kate L. Durrant should instead appear as School of Biology, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom. The corrected author and affiliation lines appear below. The online version has been corrected.

Simone Immler^a,b,1,2, Scott Pitnick^c, Geoff A. Parker^d, Kate L. Durrant^e, Stefan Lüpold^c, Sara Calhim^f, and Tim R. Birkhead^a

^aDepartment of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield S10 2TN, United Kingdom; ^bDepartment of Evolutionary Biology, Evolutionary Biology Centre, Uppsala University, 75236 Uppsala, Sweden; ^cDepartment of Biology, Syracuse University, Syracuse, NY 13244; ^dDepartment of Evolution, Ecology and Behaviour, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, United Kingdom; ^eSchool of Biology, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom; and ^fDepartment of Biology, Queen’s University, Kingston, ON, Canada K7L 3N6