1. Dept of Ecology and Evolutionary Biology; Cornell Univ., Ithaca, NY, USA, and Edward Grey Inst., Dept of Zoology, Univ. of Oxford; Oxford UK
2. Max Planck Inst. for Evolutionary Biology, AG Behavioural Genomics; Plön Germany
3. Inst. of Biodiversity, Animal Health and Comparative Medicine, Univ. of Glasgow; Glasgow UK