Productivity indexing of wild herbivores on Lewa Wildlife Conservancy and Ol Pejeta Ranch in northern Kenya
A selected set of wild herbivores on Lewa Wildlife Conservancy (LWC) and Ol Pejeta Ranch were evaluated for their utility value by productivity indexing based on a computer bio-economic model, Prying Livestock Productivity (PRY). PRY derives productivity of species based on feed energy efficiency (FEE). The respective FEE indices (Kenya shillings, Ksh, per kilogram dry […]
Fission–fusion dynamics of a megaherbivore are driven by ecological, anthropogenic, temporal, and social factors
Fission–fusion dynamics hypothetically enable animals to exploit dispersed and ephemeral food resources while minimizing predation risk. Disentangling factors affecting group size and composition of fission–fusion species facilitates their management and conservation. We used a 6-year data set of 2888 group formations of Masai giraffes in Tanzania to investigate determinants of social group size and structure. […]
Correlates of home range sizes of giraffes, Giraffa camelopardalis
Abiotic, biotic and human influences are factors that can affect animal home ranges. We calculated home range sizes of adult giraffes in the Tarangire-Manyara region of northern Tanzania (N ¼ 132 giraffes with data collected over 6 years), and investigated correlations between home range sizes and environmental and anthropogenic factors (for a subset of N […]