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Stable carbon isotope analysis of eland (Taurotragus oryx] diet in the Suikerbosrand Nature Reserve

机译:Suikerbosrand自然保护区大羚羊(Taurotragus oryx)饮食的稳定碳同位素分析

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We analysed faecal stable carbon isotope ratios in eland (Taurotragus oryx) in the Suikerbosrand Nature Reserve, Gauteng, South Africa, in order to determine the relative contributions of browsing and grazing to their diet. Plants with C_3 photosynthetic pathways comprised 95% of eland diet in March (late wet season) and June (early dry season), indicating almost exclusive browsing during both these periods. Our results are qualitatively similar to several other studies of eland diet in savanna and semi-arid habitats in South Africa. Observations of eland feeding behaviour suggested that the small non-C_3 diet component may not necessarily reflect grazing, but rather feeding on Aloe marlothii.
机译:我们分析了南非豪登省Suikerbosrand自然保护区大羚羊(Taurotragus oryx)的粪便中稳定的碳同位素比率,以确定浏览和放牧对其饮食的相对贡献。在3月(雨季末)和6月(旱季初),具有C_3光合作用途径的植物构成了淡淡饮食的95%,这表明这两个时期几乎都是排他的浏览。我们的结果在质量上与南非在热带稀树草原和半干旱生境中对大羚羊饮食的其他研究相似。对大肠喂养行为的观察表明,少量的非C_3饮食成分不一定反映出放牧,而是以马芦芦为食。

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