GPR Stratigraphy and Quaternary Morphogenesis in the Semiarid Brazil

Oliveira, Marcelo Accioly Teixeira de; Santos, Janaina C.

doi:10.4215/10.4215/rm2019.e18027

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…Serra da Capivara National Park is a semi-arid region characterized by dry scrub vegetation and deciduous forest 71 . Available stones in this area predominately include natural quartzite cobbles (recrystallized quartz and polycrystalline quartz with metamorphic foliation and high silica content) and tabular sandstones blocks, as well as concrete associated with artificially built pathways 72,73 .…”

Section: Methodsmentioning

confidence: 99%

Social cues on stone tools outweigh raw material properties in wild primates

Henke-von der Malsburg,

Reeves,

Proffitt

et al. 2024

Preprint

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1.AbstractThe ability to select appropriate tool material enabled early hominins access to new resources and environments. The underlying mechanisms driving tool selection effectively remain unknown. Observations of extant primates have demonstrated strong selectivity for specific tools, offering analogous insight into technological decision-making. However, whether tool selection is determined by individual experience alone or social information plays a role remained difficult to disentangle. Here, we used an experimental approach to investigate decision-making factors for tool selection in non-human primates. We provided naturalistic nut-cracking opportunities to wild capuchin monkeys, one of the most prolific extant tool users. We offered standardized stones varying in asocial (material properties) and social cues (evidence of previous use) to two populations, differing in their previous experience of natural materials. Our results show that both populations persistently selected tools based on their material properties when only asocial cues were provided. However, when provided with both asocial and social cues combined, they consistently selected previously used material regardless of material properties. These findings suggest that wild capuchin monkeys discriminate between raw material properties; however, prioritize social cues when present. Tool selection behaviors are therefore shaped by indirect social processes and highlight the importance of culturally transmitted information for skill acquisition in technological primates.

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Section: Methodsmentioning

confidence: 99%

Social cues on stone tools outweigh raw material properties in wild primates

Henke-von der Malsburg,

Reeves,

Proffitt

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…It therefore appears that all wild capuchin pounding tool blanks were complete or fractured quartzite cobbles. This raw material is found in large quantities across SCNP, and belong to an extensive conglomerate deposited above the Palaeozoic sandstone massif that dominates the landscape (Oliveira and Santos, 2019).…”

Section: General Characteristics Of the Wild Capuchin Assemblagementioning

confidence: 99%