|Author(s)||Victor N. Mose, Tri Nguyen-Huu, David Western, Pierre Auger, Charles Nyandwi|
The spread of human activity, settlement and land fragmentation threatens the migrations of large migratory ungulates in Africa. Modelling the migrations gives conservationists a tool for building scenarios of the threats and containment options. We propose a simple spatially explicit mathematical model of ungulate migrations based on the seasonal distribution of vegetation quantity and quality and allometric models of diet. We use the seasonal movements of selected migrants in relation to vegetation in the Amboseli ecosystem, Kenya. Parameters estimation was done by fitting the model to long term movement patterns by minimizing total least square errors. The model suggests that the migrants broadly track the shifting patterns of vegetation growth and senescence according to body size.
Key Words: Migrations, large mammals, species aggregation, spatial distribution
Authors: Victor N. Mose, Tri Nguyen-Huu, David Western, Pierre Auger, Charles Nyandwi
Journal: Ecological Modelling
|Mose et al. - 2013 - Modelling the dynamics of migrations for large her.pdf||Download|