Dental topography and microwear texture in Sapajus apella

Ungar, Peter S.; Hartgrove, Claire L.; Wimberly, Alexa N.; Teaford, Mark F.

doi:10.1016/j.bsbt.2017.12.002

Cited by 9 publications

(5 citation statements)

References 94 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It should also be noted that studies of black-tufted capuchin's dental microwear have shown on multiple occasions that it does use its molars to process hard food (e.g., Teaford, 1985;Daegling et al, 2011;Scott et al, 2012). In fact, its average microwear complexity (Asfc) is very close to that of C. atys (Daegling et al, 2011), although Asfc shows more dispersion in S. apella (Ungar et al, 2017). This may reflect the recent expansion of the black-tufted capuchin monkey's distribution during the Pleistocene which could have broadened its dietary range, introducing more hard foods in its diet (Delgado et al, 2015).…”

Section: Are Black-tufted Capuchin Molars Adapted To Breaking Seeds?mentioning

confidence: 99%

Low occurrence of molar use in black-tufted capuchin monkeys: Should adaptation to seed ingestion be inferred from molars in primates?

Thiery

Sha

2020

Palaeogeography, Palaeoclimatology, Palaeoecology

View full text Add to dashboard Cite

Section: Are Black-tufted Capuchin Molars Adapted To Breaking Seeds?mentioning

confidence: 99%

Low occurrence of molar use in black-tufted capuchin monkeys: Should adaptation to seed ingestion be inferred from molars in primates?

Thiery

Sha

2020

Palaeogeography, Palaeoclimatology, Palaeoecology

View full text Add to dashboard Cite

“…With respect to tooth shape, DMTA is not underpinned by assumptions of close relationships between the morphology and inferred functions of teeth [ 5 , 9 , 54 ]. However, few studies have explicitly taken tooth shape into consideration when investigating intraspecific microwear differences [ 36 , 55 ], and none have done so for taxa with non-occlusal dentitions. As a taxonomic grade, reptiles exhibit varying levels of tooth heterodonty.…”

Section: Introductionmentioning

confidence: 99%

Dental microwear texture analysis along reptile tooth rows: complex variation with non-dietary variables

et al. 2021

View full text Add to dashboard Cite

Dental microwear texture analysis (DMTA) is a powerful technique for reconstructing the diets of extant and extinct taxa. Few studies have investigated intraspecific microwear differences along with tooth rows and the influence of endogenous non-dietary variables on texture characteristics. Sampling teeth that are minimally affected by non-dietary variables is vital for robust dietary reconstructions, especially for taxa with non-occlusal (non-chewing) dentitions as no standardized sampling strategies currently exist. Here, we apply DMTA to 13 species of extant reptile (crocodilians and monitor lizards) to investigate intraspecific microwear differences along with tooth rows and to explore the influence of three non-dietary variables on exhibited differences: (i) tooth position, (ii) mechanical advantage, and (iii) tooth aspect ratio. Five species exhibited intraspecific microwear differences. In several crocodilians, the distally positioned teeth exhibited the ‘roughest' textures, and texture characteristics correlated with all non-dietary variables. By contrast, the mesial teeth of the roughneck monitor ( Varanus rudicollis ) exhibited the ‘roughest' textures, and texture characteristics did not correlate with aspect ratio. These results are somewhat consistent with how reptiles preferentially use their teeth during feeding. We argue that DMTA has the potential to track mechanical and behavioural differences in tooth use which should be taken into consideration in future dietary reconstructions.

show abstract

“…As such, reconstruction of BM from certain teeth may be more accurate based on root rather than crown surface area. Additionally, while tooth crown surface area can be impacted by dental wear (e.g., Dennis et al, 2004; Ungar et al, 2017; Ungar & Bunn, 2008), TRSA is unimpacted, potentially allowing it to be more widely applicable to the paleontological primate record.…”

Section: Discussionmentioning

confidence: 99%

Primate body mass and dietary correlates of tooth root surface area

Deutsch

Dickinson

Whichard

et al. 2021

American Journal of Biological Anthropology

View full text Add to dashboard Cite

Objectives: This study aims to examine primate postcanine tooth root surface area (TRSA) in the context of two ecological variables (diet and bite force). We also assess scaling relationships within distinct taxonomic groups and across the order as a whole.Materials and Methods: Mandibular postcanine TRSA was measured using a threedimensional computed tomography (CT) method for catarrhine (N = 27), platyrrhine (N = 21), and strepsirrhine (N = 24) taxa; this represents the first sample of strepsirrhines. Two different body size proxies were used: cranial geometric mean (GM) using nine linear measurements, and literature-derived body mass (BM).Results: TRSA correlated strongly with body size, scaling with positive allometry or isometry across the order as a whole; however, scaling differed significantly between taxa for some teeth. Among Strepsirrhini, molar TRSA relative to GM differed significantly between folivores and pliant-object feeders. Additionally, P 4 TRSA relative to BM differentiated folivores from both hard-and pliant-object feeders. Among Cercopithecoidea, P 4 TRSA adjusted by GM differed between hard-and pliant-object feeders. Discussion: Dietary signals in TRSA appear primarily driven by high frequency loading experienced by folivores. Stronger and more frequent dietary signals were observed within Strepsirrhini relative to Haplorhini. This may reflect the constraints of orthognathism within the latter, constraining the adaptability of their postcanine teeth.Finally, because of the strong correlation between TRSA and BM for each tooth locus (mean r 2 = 0.82), TRSA can be used to predict BM in fossil primates using provided equations.

show abstract

Dental topography and microwear texture in Sapajus apella

Cited by 9 publications

References 94 publications

Low occurrence of molar use in black-tufted capuchin monkeys: Should adaptation to seed ingestion be inferred from molars in primates?

Low occurrence of molar use in black-tufted capuchin monkeys: Should adaptation to seed ingestion be inferred from molars in primates?

Dental microwear texture analysis along reptile tooth rows: complex variation with non-dietary variables

Primate body mass and dietary correlates of tooth root surface area

Contact Info

Product

Resources

About