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Tanzania: Tanapa Worried By Giraffe Ear Disease

WILDLIFE SCIENTISTS in Tanzania are investigating a severe infectious ear disease that is reported to have affected up to 30 per cent of an estimated 300 giraffes in Mikumi National Park, 300 km southwest of Dar es Salaam. The tick-borne disease, known scientifically as otitis media, was first observed in the park in October 1999 in two animals. A survey of 210 giraffes in 2002, indicated that 16 of them had severe otitis. Scientists who have been observing the situation

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Sexual segregation by Masai giraffes at two spatial scales

In this paper alternative explanations for observed patterns of sexual segregation by giraffes are examined at two spatial scales: within-habitats and within-landscape. Habitats are defined as recognizable plant associations and the landscape as the collection of all available habitat types. The study was conducted in Mikumi National Park, Tanzania. At the within-landscape level, all sex and age classes of giraffes exhibited high degrees of preference for riverine habitats. Sex differences in habitat selection were mostly due to females with young,

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Sex differences in giraffe foraging behavior at two spatial scales

We test predictions about differences in the foraging behaviors of male and female giraffes (Giraffa camelopardalis tippelskirchi Matchie) that derive from a hypothesis linking sexual size dimorphism to foraging behavior. This body-size hypothesis predicts that males will exhibit specific behaviors that increase their dry-matter intake rate relative to females. Foraging behavior was examined at two hierarchical levels corresponding to two spatial and temporal scales, within patches and within habitats.  Patches are defined as individual trees or shrubs and habitats are

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