MATERNAL CONDITION AND THE QUALITY OF MATERNAL-CARE IN VERVET MONKEYS
MATERNAL CONDITION AND THE QUALITY OF MATERNAL-CARE IN VERVET MONKEYS
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DOI：
10.1163/156853995x00126
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发表时间：
1995-08-01
期刊：
影响因子：
1.3
通讯作者：
MCGUIRE, MT
中科院分区：
文献类型：
--
作者：
FAIRBANKS, LA;MCGUIRE, MT
产妇条件和产妇护理质量之间的关系似乎矛盾的结果可以解决的假设，产妇拒绝是一个U形函数的产妇条件。利用160只笼养猕猴（Cercopithecus aethiops sabaeus）的母婴配对资料，研究了母亲生殖条件对母婴接触、排斥和婴儿死亡率的影响。根据年龄、体重和优势等级，将生殖条件定义为边缘、最佳和平均。边缘母亲处于生育年龄分布的极端（3岁或14岁以上）或低于临界体重（3.9 kg），这些特征与研究人群中的低生育率相关。最好的母亲在女性统治阶层中处于前三分之一，处于黄金年龄（5-13岁），这些特征与高于平均生育率有关。边缘母亲和主要母亲都有类似的高比率的母亲拒绝和低比率的腹部接触和接近他们的婴儿。与两个极端组的母亲相比，处于平均生育条件下的母亲明显较少拒绝，并且在与婴儿保持联系方面发挥了更大的作用。母亲的拒绝率，母婴接触，接触的责任：和婴儿花在非产妇照顾者的百分比时间都显着相关的母亲的条件，在U形或倒U形功能。由于母亲遗弃或忽视造成的婴儿死亡率在边缘群体中最高，这与母亲体重低有关。我们的结论是，母亲在边缘条件有限的孕产妇保健，以恢复自己的健康，往往以牺牲婴儿死亡率，而在黄金条件的母亲使用拒绝，以缩短间隔到下一个概念，没有遭受比平均母亲更高的婴儿死亡率。
Seemingly contradictory results on the relationship between maternal condition and the quality of maternal care can be resolved by the hypothesis that maternal rejection is a U-shaped function of maternal condition. Data from 160 vervet monkey (Cercopithecus aethiops sabaeus) mother-infant dyads living in captive social groups were used to evaluate the influence of maternal reproductive condition on mother-infant contact, maternal rejection and infant mortality. Reproductive condition was defined as Marginal, Prime and Average based on age, weight, and dominance rank. Marginal mothers were at the extremes of the reproductive age distribution (3 years old or over 14) or were below a critical body weight (3.9 kg), characteristics that are associated with low rates of fertility in the study population. Prime mothers were in the top third of the female dominance hierarchy and of prime age (5-13), characteristics associated with higher than average fertility. Both marginal mothers and prime mothers had similar high rates of maternal rejection and low rates of ventral contact and proximity with their infants. Compared to mothers in the two extreme groups, mothers in average reproductive condition were significantly less rejecting and played a larger role in maintaining contact with their infants. Rates of maternal rejection, mother-infant contact, responsibility for contact: and the percentage lime that infants spent on nonmaternal caretakers were all significantly related to maternal condition in U-shaped or inverted U-shaped functions. The infant mortality due to maternal abandonment or neglect was highest in the marginal group and was related to low body weight of the mother. We conclude that mothers in marginal condition limited maternal care to restore their own health, often at the expense of infant mortality, whereas mothers in prime condition used rejection to shorten the interval to the next conception, without suffering higher rates of infant mortality than average mothers.