东非哺乳动物的同位素生态学。
The isotopic ecology of East African mammals.
作者信息
Ambrose Stanley H, DeNiro Michael J
机构信息
Department of Earth and Space Sciences, University of California, 90024, Los Angeles, CA, USA.
出版信息
Oecologia. 1986 Jun;69(3):395-406. doi: 10.1007/BF00377062.
The stable carbon and nitrogen isotope ratios of bone collagen have been used to trace diet and habitat selection of the larger mammals of East Africa. 238 individuals of 43 species from montane forests and grasslands in Kenya and Tanzania have been analyzed. The results show that carbon isotopes discriminate between (1) grazers and browsers in savanna grasslands, (2) forest floor and savanna grassland herbivores and (3) forest floor and forest canopy species. Nitrogen isotopes discriminate between (4) carnivores and herbivores, (5) forest and savanna grassland herbivores, and (6) water-dependent and drought-tolerant herbivores. This technique provides a quantitative approach to assessing long-term habitat and diet selection and the role of resource partitioning in animal community structure.
骨骼胶原蛋白的稳定碳氮同位素比率已被用于追踪东非大型哺乳动物的饮食和栖息地选择。对来自肯尼亚和坦桑尼亚山地森林及草原的43个物种的238个个体进行了分析。结果表明，碳同位素能够区分：（1）稀树草原上的食草动物和食叶动物；（2）森林地面和稀树草原食草动物；（3）森林地面和树冠层物种。氮同位素能够区分：（4）食肉动物和食草动物；（5）森林和稀树草原食草动物；（6）依赖水和耐旱的食草动物。这项技术提供了一种定量方法，用于评估长期栖息地和饮食选择以及资源分配在动物群落结构中的作用。
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