Ethical statement
Permission to enter and work within villages was systematically obtained from the appropriate institutional, traditional and familial authorities. Trapping sessions were carried out in accordance with requirements of Senegalese and French legislations. Every protocol used here received prior explicit approval from the relevant institutional comitee (Centre de Biologie pour la Gestion des Populations (CBGP):Agrément pour l’utilisation d’animaux à des fins scientifiques E 34-169-001). All animal-related procedures were performed according to official ethical guidelines provided by the American Society of Mammalogists (Sikes & Gannon, 2011).