Lunar and diurnal cycles in reproductive physiology and behavior in a natural population of cooperatively breeding fish

1 Department of Biology, Stanford University, Stanford, CA, USA 2 Animal Behaviour Group, Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, ON, Canada 3 Centre for Evolutionary Biology, University of Western Australia, Crawley, Australia 4 Department of Biology, McMaster University, Hamilton, ON, Canada 5 Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, USA 6 College of Biological Sciences, University of Guelph, Guelph, ON, Canada