Variation in Maternal Responsiveness in Free-Ranging Vervet Monkeys: A Response to Infant Mortality Risk?
نویسندگان
چکیده
منابع مشابه
Heterochrony and Cross-Species Intersensory Matching by Infant Vervet Monkeys
BACKGROUND Understanding the evolutionary origins of a phenotype requires understanding the relationship between ontogenetic and phylogenetic processes. Human infants have been shown to undergo a process of perceptual narrowing during their first year of life, whereby their intersensory ability to match the faces and voices of another species declines as they get older. We investigated the evol...
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Socio-ecological theory predicts that group fusion in female-philopatric primate species will be rare because females experience increased costs by associating with non-relatives. Indeed, fusion has been reported only 14 times in only 4 female-philopatric cercopithecines despite many years of observation. Here, we describe changes in ranging and agonistic behavior of vervet monkeys (Cercopithec...
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Studies of large free-ranging mammals have been revolutionized by non-invasive methods for assessing physiology, which usually involve the measurement of fecal or urinary biomarkers. However, such techniques are limited by numerous factors. To expand the range of physiological variables measurable non-invasively from free-ranging primates, we developed techniques for sampling monkey saliva by o...
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Background: Neonatal death is defined as death at any point in time during the first four weeks of life. It is one of the most important criteria used to evaluate the effectiveness of interventions in public areas. We aimed to investigate pre-pregnancy risk factors associated with neonatal death. Materials and Methods: ...
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The consequences of Maternal Mortality (MM) cannot be overemphasized. It inhibits population growth resulting into loss of lives among others. This work tends to obtain the maternal mortality rates (MMR) in Nigeria, identify some fitted distributions to MMR and determine which of the distributions best fits the data. A comprehensive Exploratory Data Analysis (EDA) was carried on MM and the MMRs...
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ژورنال
عنوان ژورنال: The American Naturalist
سال: 1988
ISSN: 0003-0147,1537-5323
DOI: 10.1086/284807