Spatial mechanistic modelling to simulate movements and contacts between wildlife and livestock in Southern Africa

Rumiano Florent, Miguel Eve, Dufleit Victor, Degenne Pascal, Gaucherel Cédric, Valls Fox Hugo, De Garine-Wichatitsky Michel, Gandiwa Edson, Caron Alexandre, Tran Annelise. 2024. Spatial mechanistic modelling to simulate movements and contacts between wildlife and livestock in Southern Africa. Ecological Modelling, 498:110863, 15 p.

Url - jeu de données - Dataverse Cirad : https://doi.org/10.18167/DVN1/O9COVW / Url - jeu de données - Dataverse Cirad : https://doi.org/10.18167/DVN1/2SFOA5 / Url - jeu de données - Dataverse Cirad : https://doi.org/10.18167/DVN1/DAVZUY / Url - jeu de données - Dataverse Cirad : https://doi.org/10.18167/DVN1/ZLIQIL / Url - jeu de données - Dataverse Cirad : https://doi.org/10.18167/DVN1/KPSYME / Url - jeu de données - Dataverse Cirad : https://doi.org/10.18167/DVN1/BJJZJV / Url - jeu de données - Dataverse Cirad : https://doi.org/10.18167/DVN1/T8DX7U

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Economie-gestion

Résumé : The open interfaces between protected areas and rural communal lands in southern Africa are characterized by semi-arid savannas where wildlife-livestock interactions vary in frequency and intensity. In a context of increasing anthropization of land and trans-frontier conservation, the multiplication of these interactions may facilitate human-wildlife coexistence such as competition for natural resources, livestock predation, crop destruction by wildlife, and/or the risk of pathogen transmission between wild and domestic species. To better understand potential contacts between domestic and wild animals at these wildlife/livestock interfaces, we developed a method combining remote sensing and spatial modelling to simulate the movements of African buffalo (Syncerus caffer) and domestic cattle (Bos taurus, Bos indicus). Satellite-derived maps of surface water and vegetation, the primary determinants of movement for these ungulate species, were integrated into a mechanistic and stochastic model of collective movements of individuals interacting according to group cohesion and alignment. This model allowed simulations of herd movements and the location of contact areas with their seasonal dynamics in space and time at the periphery of three national parks in Zimbabwe and South Africa. Model outputs were compared to Global Positioning Systems collar location data of 32 individuals (14 buffalo and 18 cattle). The modelled results show a high spatial and seasonal variability of contacts between buffalo and cattle in the three study sites, and a landscape scale correspondence between spatial extensions of the modelled and observed contact areas. These results illustrate the potential of spatial modelling combined with remote sensing to generically simulate animal movements and contacts at landscape scale while providing opportunities to explore the management of these wildlife/livestock interfaces through, for example, a further coupling with epidemiological modelling.

Mots-clés Agrovoc : buffle africain, modèle de simulation, transmission des maladies, animal sauvage, télédétection, animal domestique, Bos taurus, bétail, modèle mathématique, bovin, épidémiologie, télémétrie, écologie animale

Mots-clés géographiques Agrovoc : Afrique du Sud, Zimbabwe

Mots-clés libres : African buffalo, Animal movement, Cattle, Mechanistic modelling, Remote Sensing, Wildlife-livestock interface

Agences de financement européennes : European Commission

Agences de financement hors UE : Agence Nationale de la Recherche, Food and Agriculture Organization, Montpellier Université d'Excellence

Projets sur financement : (FRA) TElédétection et Modélisation sPatiale de la mObilité animale, (EU) EU-PARSEL, (FRA) MUSE, (FRA) Effet de l'augmentation de l'aridité et de la fréquence des sécheresses sur les systèmes socio-écologiques de savane dépendant de la biodiversité : scénarios exploratoires pour une aire protégée contrainte par l'eau de surface, (FRA) Paysage de la peur et utilisation de l'hétérogénéité spatiale des ressources par des herbivores de taille corporelle différente: nouvelles hypothèses de coexistence interspécique

Auteurs et affiliations

• Rumiano Florent, Université de Montpellier (FRA) - auteur correspondant
• Miguel Eve, CNRS (FRA)
• Dufleit Victor, CIRAD-BIOS-UMR ASTRE (GLP)
• Degenne Pascal, CIRAD-ES-UMR TETIS (FRA) ORCID: 0000-0003-0062-8511
• Gaucherel Cédric, INRAE (FRA)
• Valls Fox Hugo, Université de Montpellier (FRA)
• De Garine-Wichatitsky Michel, CIRAD-BIOS-UMR ASTRE (THA) ORCID: 0000-0002-5438-1473
• Gandiwa Edson, Zimbabwe Parks and Wildlife Management Authority (ZWE)
• Caron Alexandre, CIRAD-BIOS-UMR ASTRE (MOZ) ORCID: 0000-0002-5213-3273
• Tran Annelise, CIRAD-ES-UMR TETIS (FRA) ORCID: 0000-0001-5463-332X

Source : Cirad-Agritrop (https://agritrop.cirad.fr/610424/)

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