Annual isotopic diet (δ13C, δ18O) of Notiomastodon platensis (Ameghino, 1888) from Brazilian Intertropical Region

Dantas, Mário André Trindade; Liparini, Alexandre; Asevedo, Lidiane; França, Lucas de Melo; Cherkinsky, Alexander

doi:10.1016/j.quaint.2021.06.015

Cited by 11 publications

(6 citation statements)

References 35 publications

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“…Similarly, to understand the origin of the footprints, it is necessary to know that the predominant mastodon species in Latin America was Cuvieronius hyodon, which ranged across the Andes from Ecuador to Chile ( Mothè et al , 2016 ). The diet of South American mastodons has been extensively studied in recent years through dental enamel microwear analysis and oxygen and carbon isotope studies ( Dantas et al , 2022 ; Dominato et al , 2010 ). However, there are only two known records of mastodon footprints in South America, both of which are found in Chile, specifically in Punta Pelluco in the Lakes Region, this area is renowned for its fossil forest from the late glacial period (Late Pleistocene) and also includes tracks of horses and camelids from the late Pleistocene deposits of Pehuén-Co and Laguna del Monte in the Buenos Aires Province ( Oliva & Arregui, 2018 ).…”

Section: Resultsmentioning

confidence: 99%

Mastodon footprints found to be water erosion in the Quebrada de Chalán (Licto, Ecuador)

et al. 2023

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The Chalan ravine is a deep bed creek that runs through Licto (Ecuador). It has been known since the 19th century for the abundance of paleontological remains of Pleiostocene fauna and megafauna in its profiles, where entire remains of mastodons were recovered. The abundance of these remains made one of the high areas, where marmites exist in different forms, was traditionally considered as mastodon footprints. Archaeological prospecting, geographic information system (GIS) technology, unmanned aerial vehicle (UAV), photogrammetry, and the geological study of the place, allowed us to determine that the mythical traces of mastodon were marmites made by the water erosion produced in the same ravine over time.

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Section: Resultsmentioning

confidence: 99%

Mastodon footprints found to be water erosion in the Quebrada de Chalán (Licto, Ecuador)

et al. 2023

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“…East Asian examples include the non-caballine horse Equus ovodovi, a temperate water buffalo (Bubalus mephistopheles), and the ostrich Pachystruthio anderssoni (Janz et al, 2009;Turvey et al, 2018;Cai et al, 2022). Other examples include European wild ass (Equus hydruntinus) (Crees and Turvey, 2014), giant buffalo (Pelorovis antiquus) in Africa (Faith, 2014), the extant wild horse (Equus ferus) in North America (Murchie et al, 2021), and various megafauna species in South America, for example the proboscidean Notiomastodon platensis (Dantas et al, 2022), the large ground sloth (Scelidotherium leptocephalum), and a giant armadillo Eutatus seguini (Prado et al, 2015). Some species that were more widespread in the Pleistocene or Early Holocene had their last stands in historic times, for example Steller's sea cow (Hydrodamalis gigas) and a large, near-flightless cormorant (Urile perspicillatus), both of which ranged across the North Pacific during the Pleistocene and earlier Holocene (Crerar et al, 2014;Watanabe et al, 2018).…”

Section: Temporal Patternsmentioning

confidence: 99%

“…Occurrence across widely varying climatic conditions and high levels of dietary flexibility were common for late-Quaternary herbivores (e.g., Price, 2008;França et al, 2015;van Asperen and Kahlke, 2015). Tooth-wear and isotope studies indicate high dietary variability among conspecific populations and individuals, from mainly grazing to mainly browsing, in extinct proboscideans from Eurasia and the Americas such as Mammuthus columbi, Palaeoloxodon antiquus, Notiomastodon platensis and Cuvieronius hyodon (González-Guarda et al, 2018;Haiduc et al, 2018;Rivals et al, 2019;Smith and DeSantis, 2020;Dantas et al, 2022). For example, the South American proboscidean Notiomastodon platensis occurred in multiple ecosystem types and varied in diet from grazer to mixed-feeder or browser depending on locality (e.g., Asevedo et al, 2012;González-Guarda et al, 2018;Pérez-Crespo et al, 2020;Asevedo et al, 2021;Dantas et al, 2022).…”

Section: Climatic Causationmentioning

confidence: 99%

The late-Quaternary megafauna extinctions: Patterns, causes, ecological consequences and implications for ecosystem management in the Anthropocene

Svenning,

Lemoine,

Bergman

et al. 2024

Camb. prisms Extinction

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Across the last ~50,000 years (the late Quaternary) terrestrial vertebrate faunas have experienced severe losses of large species (megafauna), with most extinctions occurring in the Late Pleistocene and Early to Middle Holocene. Debate on the causes has been ongoing for over 200 years, intensifying from the 1960s onward. Here, we outline criteria that any causal hypothesis needs to account for. Importantly, this extinction event is unique relative to other Cenozoic (the last 66 million years) extinctions in its strong size bias. For example, only 11 out of 57 species of megaherbivores (body mass ≥1,000 kg) survived to the present. In addition to mammalian megafauna, certain other groups also experienced substantial extinctions, mainly large non-mammalian vertebrates and smaller but megafauna-associated taxa. Further, extinction severity and dates varied among continents, but severely affected all biomes, from the Arctic to the tropics. We synthesise the evidence for and against climatic or modern human (Homo sapiens) causation, the only existing tenable hypotheses. Our review shows that there is little support for any major influence of climate, neither in global extinction patterns nor in fine-scale spatiotemporal and mechanistic evidence. Conversely, there is strong and increasing support for human pressures as the key driver of these extinctions, with emerging evidence for an initial onset linked to pre-sapiens hominins prior to the Late Pleistocene. Subsequently, we synthesize the evidence for ecosystem consequences of megafauna extinctions and discuss the implications for conservation and restoration. A broad range of evidence indicates that the megafauna extinctions have elicited profound changes to ecosystem structure and functioning. The late-Quaternary megafauna extinctions thereby represent an early, large-scale human-driven environmental transformation, constituting a progenitor of the Anthropocene, where humans are now a major player in planetary functioning. Finally, we conclude that megafauna restoration via trophic rewilding can be expected to have positive effects on biodiversity across varied Anthropocene settings.

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“…Since then, several papers dealing with the chronology and paleoecology of the meso-megamammals from the Brazilian Intertropical Region (BIR) have been published using this technique and presenting the occurrence of this fauna in the late Pleistocene, between 32 and 9 cal ka BP (e.g., Dantas et al, 2017Dantas et al, , 2020Dantas et al, , 2022.…”

Section: Introductionmentioning

confidence: 99%

Interrelation of radiocarbon ages from bone fractions in the Brazilian Intertropical Region

Dantas

Cherkinsky

2023

Quat. res.

Self Cite

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There is a consensus in the literature that radiocarbon dating performed on bioapatite often produces ages younger than dating performed on collagen. We propose a general regression that could be used to convert the bioapatite radiocarbon ages to the simulated ages on collagen in fossil samples worldwide. This general regression presents several good indices of quality, high correlation (R2 = 0.98), lower values of percent predicted error (%PE = 0.01), and standard error of the estimate (%SEE = 21.83), showing that it is a good tool, as the predicted values are similar to those observed. Using this regression, we converted the radiocarbon ages of bioapatite to the expected age from the collagen fraction made for several taxa from the Brazilian Intertropical Region (BIR) and suggest that these dates could be 1–7 cal ka BP older than previously thought.

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Annual isotopic diet (δ13C, δ18O) of Notiomastodon platensis (Ameghino, 1888) from Brazilian Intertropical Region

Cited by 11 publications

References 35 publications

Mastodon footprints found to be water erosion in the Quebrada de Chalán (Licto, Ecuador)

Mastodon footprints found to be water erosion in the Quebrada de Chalán (Licto, Ecuador)

The late-Quaternary megafauna extinctions: Patterns, causes, ecological consequences and implications for ecosystem management in the Anthropocene

Interrelation of radiocarbon ages from bone fractions in the Brazilian Intertropical Region

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