Marine reservoir corrections for the Caribbean demonstrate high intra- and inter-island variability in local reservoir offsets

DiNapoli, Robert J.; Fitzpatrick, Scott M.; Napolitano, Matthew; Rick, Torben C.; Stone, Jessica; Jew, Nicholas P.

doi:10.1016/j.quageo.2020.101126

Cited by 20 publications

(13 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A consistent identification of DOs outside the North Atlantic is still hampered by low-resolution chronologies, a lack of well-fingerprinted tephra for instantaneous dating, and poorlyconstrained reservoir effects in marine records. The most updated regional reservoir corrections (Heaton et al, 2020) or R (Stuiver and Braziunas, 1993;Reimer and Reimer, 2017) still rely on limited data points in the American tropics, including updated locations in the Caribbean (DiNapoli et al, 2021), and the west Atlantic off the Brazilian Coast (Alves et al, 2015;Oliveira et al, 2019). The weighted mean of regional differences in marine reservoir error can vary from −229 years using Caribbean ages to −128 years using ages off the Brazilian coast, while the uncertainty varies from 165 to 111 (Table 1).…”

Section: Chronological Effectsmentioning

confidence: 99%

Testing the Tropical Trigger Hypothesis of Abrupt Climate Variability

Oughton

Urrego

2021

Front. Earth Sci.

View full text Add to dashboard Cite

Dansgaard-Oeschger oscillations (DOs) are abrupt shifts in climate, which are dramatic temperature fluctuations observed in Greenland and recorded globally. These abrupt changes are associated with the slowing and shutting down of the Atlantic Meridional Overturning Circulation (AMOC), but despite their importance the driving forces of DOs are not fully understood. Here we assess the role of the AMOC during DOs, the Northern vs Southern Hemisphere control on AMOC, and the possibility of neotropical moisture as a driver for abrupt climate variability. During DOs, South America has recorded a disparity between the degree of warming, and the change in precipitation at different sites. Based on our current understanding, we propose likely oceanic and continental changes in tropical South America that can help disentangle the triggers of these events. With the margins of error associated with dating sources of palaeo-data, the need for an independent chronology with multiple proxies recorded in the same record, could offer the information needed to understand the driving forces of DOs.

show abstract

Section: Chronological Effectsmentioning

confidence: 99%

Testing the Tropical Trigger Hypothesis of Abrupt Climate Variability

Oughton

Urrego

2021

Front. Earth Sci.

View full text Add to dashboard Cite

show abstract

“…Date1_IntCal20_S and Date1_IntCal20_E are respectively the starting and ending calibrated age using the OxCal online tool for calibration based on the IntCal and Marine20 calibration curves [17][18]. For marine shell dates, the mean regional correction to the reservoir effect has been used (-146 +/-114 year) based on DiNapoli et al [19].…”

Section: Sites Table (Sites_en and Sites_fr)mentioning

confidence: 99%

A Database of Lapidary Artifacts in the Caribbean for the Ceramic Age

Queffelec

Fouéré

Caverne³

2021

Journal of Open Archaeology Data

View full text Add to dashboard Cite

Lapidary artifacts show an impressive abundance and diversity during the Ceramic period in the Caribbean islands, especially at the beginning of this period. Most of the raw materials used in this production do not exist naturally on the islands of the Lesser Antilles, nevertheless, many archaeological sites have yielded such artifacts on these islands. In the framework of a four-years-long project, we created a database by combining first hand observations and analysis, as well as a thorough literature survey. The result is a database including more than 100 sites and almost 5000 beads, pendants, blanks and raw material fragments.

show abstract

“…We revised the ΔR values to reflect updates to the Marine20 calibration curve 100 . Following methods in DiNapoli et al 103 , we calculated the error-weighted pooled mean with external variance added for these ΔR values to be −214 ± 16 (χ 2 9:0.05 = 11.0 < 16.9;…”

Section: Methodsmentioning

confidence: 99%

Approximate Bayesian Computation of radiocarbon and paleoenvironmental record shows population resilience on Rapa Nui (Easter Island)

et al. 2021

Self Cite

View full text Add to dashboard Cite

Examining how past human populations responded to environmental and climatic changes is a central focus of the historical sciences. The use of summed probability distributions (SPD) of radiocarbon dates as a proxy for estimating relative population sizes provides a widely applicable method in this research area. Paleodemographic reconstructions and modeling with SPDs, however, are stymied by a lack of accepted methods for model fitting, tools for assessing the demographic impact of environmental or climatic variables, and a means for formal multi-model comparison. These deficiencies severely limit our ability to reliably resolve crucial questions of past human-environment interactions. We propose a solution using Approximate Bayesian Computation (ABC) to fit complex demographic models to observed SPDs. Using a case study from Rapa Nui (Easter Island), a location that has long been the focus of debate regarding the impact of environmental and climatic changes on its human population, we find that past populations were resilient to environmental and climatic challenges. Our findings support a growing body of evidence showing stable and sustainable communities on the island. The ABC framework offers a novel approach for exploring regions and time periods where questions of climate-induced demographic and cultural change remain unresolved.

show abstract

Marine reservoir corrections for the Caribbean demonstrate high intra- and inter-island variability in local reservoir offsets

Cited by 20 publications

References 45 publications

Testing the Tropical Trigger Hypothesis of Abrupt Climate Variability

Testing the Tropical Trigger Hypothesis of Abrupt Climate Variability

A Database of Lapidary Artifacts in the Caribbean for the Ceramic Age

Approximate Bayesian Computation of radiocarbon and paleoenvironmental record shows population resilience on Rapa Nui (Easter Island)

Contact Info

Product

Resources

About