1. MARE – Marine and Environmental Sciences Centre, ESTM, Instituto Politécnico de Leiria, Leiria, Portugal
2. Department of Statistics, Faculty of Medicine, University of Salamanca, Salamanca, Spain
3. CFE – Centre for Functional Ecology, Department of Life Science, University of Coimbra, Coimbra, Portugal
4. Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal