An analysis of long-term trends in the abundance of domestic livestock and free-roaming dogs in the Bale Mountains National Park, Ethiopia

摘要: Livestock inside the Bale Mountains National Park poses a threat to persistence of Ethiopian wolf (Canis simensis) through grazing-induced habitat degradation and transmission diseases from domestic dogs kept alongside herds. We used 21- year time series explore long-term trends in numbers cattle, caprines free-roaming two core areas (the Web valley Sanetti plateau) test whether seasonal variations primary productivity underlies current livestock production system. No were detected valley, where are most abundant graze seasonally. have increased significantly on plateau, grazing all year-round albeit at lower intensity. use was positively correlated with vegetation as derived remotely sensed data, Normalized Difference Vegetation Index (NDVI). On neither nor showed signs strong seasonality. The system has potential degrade that sustains wolves’ rodent prey while an increase parts their range may heighten risk disease transmission. Resume Le betail qui pait dans le Parc des est une menace pour la survie du loup ethiopien Canis simensis parce que pâturage entraine de l’habitat et favorise maladies chiens domestiques accompagnent les troupeaux. Nous avons utilise serie donnees couvrant 21 annees etudier tendances long terme nombre bovins, chevres parcourant librement deux zones cles loups d’Ethiopie, Vallee Plateau Sanetti, tester si saisonnieres productivite primaire sous-tendent systeme actuel betail. n’avons detecte aucune tendance tetes Web, ou plus abondant il facon saisonniere. Le betes augmente significativement sur grande partie elles paissent toute l’annee quoique faible intensite. La frequentation etait positivement liee selon recueillies distance Sur ni primaire, ne presente signe fort saisonnalite. potentiel degrader permettant maintien rongeur proie cependant libre circulation plusieurs parties leur aire repartition pourrait accroitre risque maladies.