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Dust in the wind: How climate variables and volcanic dust affect rates of tooth wear in Central American howling monkeys.

dc.contributor.author Spradley, Jackson P
dc.contributor.author Glander, Kenneth E
dc.contributor.author Kay, Richard F
dc.coverage.spatial United States
dc.date.accessioned 2015-10-28T14:43:24Z
dc.date.issued 2016-02
dc.identifier http://www.ncbi.nlm.nih.gov/pubmed/26426839
dc.identifier.uri https://hdl.handle.net/10161/10795
dc.description.abstract OBJECTIVES: Two factors have been considered important contributors to tooth wear: dietary abrasives in plant foods themselves and mineral particles adhering to ingested food. Each factor limits the functional life of teeth. Cross-population studies of wear rates in a single species living in different habitats may point to the relative contributions of each factor. MATERIALS AND METHODS: We examine macroscopic dental wear in populations of Alouatta palliata (Gray, 1849) from Costa Rica (115 specimens), Panama (19), and Nicaragua (56). The sites differ in mean annual precipitation, with the Panamanian sites receiving more than twice the precipitation of those in Costa Rica or Nicaragua (∼3,500 mm vs. ∼1,500 mm). Additionally, many of the Nicaraguan specimens were collected downwind of active plinian volcanoes. Molar wear is expressed as the ratio of exposed dentin area to tooth area; premolar wear was scored using a ranking system. RESULTS: Despite substantial variation in environmental variables and the added presence of ash in some environments, molar wear rates do not differ significantly among the populations. Premolar wear, however, is greater in individuals collected downwind from active volcanoes compared with those living in environments that did not experience ash-fall. DISCUSSION: Volcanic ash seems to be an important contributor to anterior tooth wear but less so in molar wear. That wear is not found uniformly across the tooth row may be related to malformation in the premolars due to fluorosis. A surge of fluoride accompanying the volcanic ash may differentially affect the premolars as the molars fully mineralize early in the life of Alouatta.
dc.language eng
dc.publisher Wiley
dc.relation.ispartof Am J Phys Anthropol
dc.relation.isversionof 10.1002/ajpa.22877
dc.subject Platyrrhini
dc.subject dental ageing
dc.subject habitat variation
dc.subject volcanic ash
dc.subject Alouatta
dc.subject Animals
dc.subject Anthropology, Physical
dc.subject Female
dc.subject Tooth Wear
dc.subject Volcanic Eruptions
dc.subject Wind
dc.title Dust in the wind: How climate variables and volcanic dust affect rates of tooth wear in Central American howling monkeys.
dc.type Journal article
duke.contributor.id Glander, Kenneth E|0114425
duke.contributor.id Kay, Richard F|0098912
pubs.author-url http://www.ncbi.nlm.nih.gov/pubmed/26426839
pubs.begin-page 210
pubs.end-page 222
pubs.issue 2
pubs.organisational-group Duke
pubs.organisational-group Earth and Ocean Sciences
pubs.organisational-group Evolutionary Anthropology
pubs.organisational-group Nicholas School of the Environment
pubs.organisational-group Trinity College of Arts & Sciences
pubs.publication-status Published
pubs.volume 159
dc.identifier.eissn 1096-8644
duke.contributor.orcid Glander, Kenneth E|0000-0001-9563-4660
duke.contributor.orcid Kay, Richard F|0000-0002-4219-7580


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