The Gut Microbiota Appears to Compensate for Seasonal Diet Variation in the Wild Black Howler Monkey (Alouatta pigra)
The Gut Microbiota Appears to Compensate for Seasonal Diet Variation in the Wild Black Howler Monkey (Alouatta pigra)
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DOI：
10.1007/s00248-014-0554-7
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发表时间：
2015-02-01
影响因子：
3.6
通讯作者：
Garber, Paul A.
中科院分区：
文献类型：
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作者：
Amato, Katherine R.;Leigh, Steven R.;Garber, Paul A.
对于大多数哺乳动物，包括非人类灵长类动物，饮食组成会随着食物供应的差异而暂时变化。由于饮食会影响肠道微生物群的组成，因此野生哺乳动物的肠道微生物群很可能会随着进食模式的季节性变化而发生变化。这种变化可能会影响宿主的消化效率，并最终影响宿主的营养。在这项研究中，我们调查了墨西哥帕伦克国家公园的两组（N = 13 个体）野生墨西哥黑吼猴 (Alouatta Pigra) 在 10 个月的时间内饮食和肠道微生物群组成和功能的时间变化。单个细菌类群相对丰度的时间变化与宿主饮食的变化密切相关。例如，瘤胃球菌科的相对丰度在能量摄入最低的时期最高，而丁酸球菌的相对丰度在幼叶和未成熟果实占日粮的68%时最高。此外，在食物来源能量摄入减少期间，吼猴表现出微生物产生的能量增加。因为我们在研究过程中观察到吼猴活动和范围模式几乎没有变化，所以我们认为肠道微生物群的组成和活动的变化提供了额外的能量和营养来补偿饮食的变化。肠道微生物群产生的能量和营养似乎为这些灵长类动物提供了针对能量和营养摄入季节性波动的有效缓冲，并且可能在其他哺乳动物物种中具有类似的功能。
For most mammals, including nonhuman primates, diet composition varies temporally in response to differences in food availability. Because diet influences gut microbiota composition, it is likely that the gut microbiota of wild mammals varies in response to seasonal changes in feeding patterns. Such variation may affect host digestive efficiency and, ultimately, host nutrition. In this study, we investigate the temporal variation in diet and gut microbiota composition and function in two groups (N = 13 individuals) of wild Mexican black howler monkeys (Alouatta pigra) over a 10-month period in Palenque National Park, Mexico. Temporal changes in the relative abundances of individual bacterial taxa were strongly correlated with changes in host diet. For example, the relative abundance of Ruminococcaceae was highest during periods when energy intake was lowest, and the relative abundance of Butyricicoccus was highest when young leaves and unripe fruit accounted for 68 % of the diet. Additionally, the howlers exhibited increased microbial production of energy during periods of reduced energy intake from food sources. Because we observed few changes in howler activity and ranging patterns during the course of our study, we propose that shifts in the composition and activity of the gut microbiota provided additional energy and nutrients to compensate for changes in diet. Energy and nutrient production by the gut microbiota appears to provide an effective buffer against seasonal fluctuations in energy and nutrient intake for these primates and is likely to have a similar function in other mammal species.