Digestive retention times for Allen's swamp monkey and L'Hoest's monkey: data with implications for the evolution of cercopithecine digestive strategy
Digestive retention times for Allen's swamp monkey and L'Hoest's monkey: data with implications for the evolution of cercopithecine digestive strategy
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DOI：
10.1111/j.1749-4877.2012.00282.x
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发表时间：
2012-06-01
影响因子：
3.3
通讯作者：
Lambert, Joanna E.
中科院分区：
文献类型：
--
作者：
Blaine, Kevin P.;Lambert, Joanna E.
灵长类动物通过细菌发酵从植物纤维中获取能量，细菌发酵可以在改良的前胃（前肠）或后肠（后肠）腔中进行，也可以在两者中进行。较长的消化滞留时间允许更完整的发酵；因此，食用高纤维草食性食物的灵长类动物比那些依赖于更容易消化的植物性食物（如水果）的哺乳动物的滞留时间相对和绝对更长。我们用颗粒标记物测量了圈养的艾伦沼泽猴[Allenopithecus nigroviridis (Pocock, 1907)] （n= 3）和L'Hoest猴子（Cercopithecus lhoesti P. Sclater, 1899） （n= 2）的消化滞留时间。结果表明，平均滞留时间分别为23.229.4 h和23.224.0 h。这项研究的结果，结合先前发表的关于其他灵长类动物消化滞留时间的数据，表明尾猿与其他灵长类动物的不同之处是，它们有更长的消化滞留时间，这可以单独通过体重来预测。这些数据与假设相一致，即相对较长的滞留时间是Cercopithecinae的原始特征。
Primates access energy from plant fiber via bacterial fermentation in either a modified forestomach (foregut), a caecocolic (hindgut) chamber of the large intestine, or both. Longer digestive retention times allow for more complete fermentation; as such, primates that consume an herbivorous diet high in fiber are expected to have both relatively and absolutely longer retention times than those mammals that rely on more readily digestible plant foods, such as fruit. We used particulate markers to measure the digestive retention times of captive Allen's swamp monkeys [Allenopithecus nigroviridis (Pocock, 1907)] (n= 3) and L'Hoest's monkey (Cercopithecus lhoesti P. Sclater, 1899) (n= 2). Results indicate mean retention times of 23.229.4 h and 23.224.0 h for C. lhoesti and A. nigroviridus, respectively. Results from this study, in combination with previously published data on digestive retention times in other primate species, indicate that cercopithecines differ from other primate taxa by having lengthier retention times that can be predicted by body mass alone. These data are consistent with the hypothesis that relatively lengthy retention times are a primitive trait for Cercopithecinae.