Ecological stress and linear enamel hypoplasia in <i>Cebus</i>

Chollet, Madeleine B.; Teaford, Mark F.

doi:10.1002/ajpa.21182

Cited by 18 publications

(18 citation statements)

References 33 publications

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“…Skinner and Hopwood (2004) reported that LEH defects occurred repeatedly at estimated mean intervals of 6 months in Gorilla gorilla, Pan troglodytes, and Pongo pygmaeus, suggesting to the authors that seasonal stressors (related to food availability and/or illness) might be influencing LEH timing in these species. There are regional patterns of LEH expression in non-human primates (Hannibal and Guatelli-Steinberg, 2005;Chollet and Teaford, 2010), but the causes of these patterns are unknown. There are regional patterns of LEH expression in non-human primates (Hannibal and Guatelli-Steinberg, 2005;Chollet and Teaford, 2010), but the causes of these patterns are unknown.…”

mentioning

confidence: 99%

Linear enamel hypoplasia as an indicator of physiological stress in great apes: Reviewing the evidence in light of enamel growth variation

Guatelli‐Steinberg

Ferrell

Spence

2012

American J Phys Anthropol

111

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Physiological stress, such as malnutrition or illness, can disrupt normal enamel growth, resulting in linear enamel hypoplasias (LEHs). Although ecological factors may contribute to LEH expression, other factors, such as surface abrasion and enamel growth variables, are also likely to be involved. Attention to these other factors is necessary before we can begin to understand what LEH might signify in terms of ecological sources of physiological stress in non-human primates. This study focuses on assessing the contribution of these other factors to variation in LEH expression within and across great ape taxa. Here, we present LEH data from unabraded crown regions in samples of seven great ape species. We analyze these data with respect to lateral enamel formation time and the angles that striae of Retzius make with the enamel surface, as these variables are expected to affect variation in LEH expression. We find that although the duration of enamel formation is associated with sex differences in LEH expression, it is not clearly related to taxonomic variation in LEH expression, and does not explain the low frequency of LEH in mountain gorillas found in this and a previous study. Our data on striae of Retzius angles suggest that these influence LEH expression along the tooth crown and may contribute to the consistently high frequencies of LEH seen in Pongo in this and previous studies. We suggest that future work aimed at understanding species variation in these angles is crucial to evaluating taxonomic patterns of LEH expression in great apes.

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confidence: 99%

Linear enamel hypoplasia as an indicator of physiological stress in great apes: Reviewing the evidence in light of enamel growth variation

Guatelli‐Steinberg

Ferrell

Spence

2012

American J Phys Anthropol

111

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“…malnutrition) (e.g. Sarnat & Schour, 1941;Kierdorf & Kierdorf, 1997;Chollet & Teaford, 2010;Salanitri & Seow, 2013), the function of the secretory ameloblasts was disrupted in the developing fetus.…”

Section: Timing Of Tooth Developmentmentioning

confidence: 99%

Dental paleopathology in fossil rhinoceroses: etiology and implications

Rößner

2017

Journal of Zoology

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The identification and interpretation of paleopathological findings in the dentition of mammals have the potential to shed light on disturbed development and stress conditions. In combination with knowledge about the timing of dental development, dental pathologies can provide a unique opportunity to reconstruct specific phases in the life history of fossil taxa, as well as animal-environment interactions. The dental ontogeny of the extinct rhinoceros Prosantorhinus germanicus from the Miocene is well-known from an exceptionally preserved sample of juvenile dentaries. Two of the represented juvenile individuals each revealed a dental anomaly, which were analyzed macroscopically and via X-ray tomography in this study. One specimen documents decreased dental wear of deciduous cheek teeth, mandibular bone resorption as well as abnormal cemental deposition. At an early age, the extinct juvenile rhinoceros probably was affected by a gingival infection resulting from an accumulation of bacterial plaque. This led to a chronic gingivitis and eventually may have caused periodontitis. Furthermore, it suffered from inflammation-induced hypercementosis. Another specimen revealed an abnormal reduction in thickness of enamel in the deciduous cheek tooth. The enamel hypoplasia indicates stress experienced during the prenatal period. During a phase of environmental stress (e.g. increased fluoride exposure) or physiological stress (e.g. malnutrition) the function of the secretory ameloblasts was disrupted in the developing embryo. The present work shows that the analysis of dental paleopathologies is a useful means for retrospective assessment of specific phases in the life history of extinct animals. This adds to the picture of the living conditions of the extinct rhinoceros P. germanicus.

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“…Her results showed that wild giraffes exhibited no signs of enamel hypoplasia, suggesting that wild giraffes suffer considerably lower levels of systemic stress than their captive counterparts. Collet and Teaford (2008) investigated the relationship between external environmental conditions and enamel hypoplasia prevalence in Cebus monkeys. They explored the association between higher frequencies of enamel hypoplasia and increased environmental stress.…”

Section: Climate and Environmentmentioning

confidence: 99%

More Than Just Mad Cows: Exploring Human‐Animal Relationships through Animal Paleopathology

Upex

Dobney

2011

A Companion to Paleopathology

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From the earliest hunters, through the advent of domestication to the most recent outbreak of swine flu, animals and humans have had a long and complex relationship. Anthropology and archaeology (more specifically the disciplines of zooarchaeology and paleopathology) provide a key temporal framework for the exploration and understanding of this relationship and the wide range of questions that are encompassed by it. Paleopathological studies in ancient human and nonhuman species can be broadly defined as the study of past health, disease and injury, through the analysis of calcified tissue, primarily bones and teeth. However, compared to human paleopathology, animal paleopathology has received little or no serious attention within the wider fields of archaeology and even zooarchaeology. The reasons for this are varied (and discussed in more detail below), but are principally related to the more complex, intensive taphonomic processes that animal bone assemblages often undergo compared to human remains. As we hope this brief chapter will highlight, the study of animal paleopathology has the potential to add a great deal of information to our understanding of the past. Whilst perhaps the most obvious area of study relates to the spread and management of human diseases, this is just the "tip of the iceberg".

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Ecological stress and linear enamel hypoplasia in Cebus

Cited by 18 publications

References 33 publications

Linear enamel hypoplasia as an indicator of physiological stress in great apes: Reviewing the evidence in light of enamel growth variation

Linear enamel hypoplasia as an indicator of physiological stress in great apes: Reviewing the evidence in light of enamel growth variation

Dental paleopathology in fossil rhinoceroses: etiology and implications

More Than Just Mad Cows: Exploring Human‐Animal Relationships through Animal Paleopathology

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