Spatial-temporal variation in sex ratio and group size of ostriches (Struthio namelus) in the Serengeti National Park and environs in Northern Tanzania

A significant female-skewed sex ratio was observed in ostrich populations within the Serengeti National Park, contrasting with male-biased ratios in adjacent partially protected areas. This spatial variation (χ² = 48.041, p < 0.001) suggests differential survival or movement patterns influenced by habitat protection levels. Group sizes remained consistent across areas (median: 3 birds), though larger groups formed during the wet season (p < 0.05). Predation pressure was notably higher inside the park, potentially driving these dynamics. The study analyzed data from 2005–2006 along 388 km of roads, revealing how sex ratios and group behavior vary with protection status and seasons.

Magige, F. (2012). Spatial-temporal variation in sex ratio and group size of ostriches (Struthio namelus) in the Serengeti National Park and environs in Northern Tanzania. Tanzania Journal of Science, 38(1). https://doi.org/10.65085/2507-7961.1874