title: Corrigendum.
authors.affiliation: School of Biology, University of St Andrews, St Andrews, UK.
authors.forename: G S
authors.initials: GS
authors.lastname: Faria
authors.affiliation: Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa, Portugal.
authors.forename: S A M
authors.initials: SA
authors.lastname: Varela
authors.affiliation: School of Biology, University of St Andrews, St Andrews, UK.
authors.forename: A
authors.initials: A
authors.lastname: Gardner