Reconstructing the Diet of Kůlna 1 from the Moravian Karst (Czech Republic)

Williams, Frank; Schmidt, Christopher W.; Droke, Jessica L.; Neruda, Petr; Willman, John C.; Becam, Gaël; Lumley, Marie‐Antoinette de

doi:10.1007/s41982-021-00099-0

Cited by 5 publications

(4 citation statements)

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“…Crawfish can be considered a "hard" invertebrate diet, because of their highly mineralized exoskeleton (Aiken and Waddy, 1992;Raabe et al, 2005). In mammals (including hominins, modern humans, and Neanderthals) and reptiles, high complexity has been consistently associated with hard-object feeding, whether bones, nuts, seeds, or mollusks (Scott et al, 2005(Scott et al, , 2012Ungar et al, 2008;DeSantis et al, 2012;Schmidt et al, 2016Schmidt et al, , 2019Williams et al, 2019Williams et al, , 2021Winkler et al, 2019a. Alligators feeding on crustaceans fit within this pattern and emphasize the universal interrelation between complex DMT and hard objects in the diet.…”

Section: Dietary DI Erences In Dental Microwear Texture Analysismentioning

confidence: 99%

Controlled feeding experiments with juvenile alligators reveal microscopic dental wear texture patterns associated with hard-object feeding

Winkler

Iijima²,

Blob³

et al. 2022

Front. Ecol. Evol.

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Dental wear analyses are classically applied to mammals because they have evolved heterodont dentitions for sophisticated mastication. Recently, several studies have shown a correlation between pre-assigned and analytically inferred diet preferences in extant reptiles through dental microwear texture analysis (DMTA), a method using quantitative assessment of microscopic wear marks to reconstruct the diet material properties. The first tentative applications of DMTA to extinct reptiles have followed. However, for large and small mammals, microwear analyses have undergone a long time of ground-truthing through direct feeding observations, stomach content analyses, and feeding experiments. Such data are currently lacking for reptiles, but are necessary to further extend DMTA, especially to Archosauria, as the application to dinosaurs could be of great interest to the scientific community. We herein present data from a pilot feeding experiment with five juvenile American alligators (Alligator mississippiensis). Each individual received a diet of assumed different hardness for ~4 months: crocodylian pellets (control), sardines, quails, rats, or crawfish. All individuals initially received the same pellet diet, and we found them to show similar dental microwear texture patterns before they were switched to their designated experimental diet. From the first feeding bout on, dental microwear textures differed across the diets. The crawfish-feeder showed consistently higher surface complexity, followed by the rat-feeder. Quail- and fish-feeding resulted in similar wear signatures, with low complexity. Fast tooth replacement and selective tooth use likely affected microwear formation, but we were able to detect a general hard (crawfish and rat) versus soft (quail and fish) DMTA signature. Such patterns can support the identification of hard-object feeding in the fossil record.

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Section: Dietary DI Erences In Dental Microwear Texture Analysismentioning

confidence: 99%

Controlled feeding experiments with juvenile alligators reveal microscopic dental wear texture patterns associated with hard-object feeding

Winkler

Iijima²,

Blob³

et al. 2022

Front. Ecol. Evol.

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show abstract

“…Xiongnu pastoralists traded millet with farmers for meat and hides but otherwise included few plant foods in the diet (Machicek and Zubova, 2012;Murphy et al, 2013). previously (Williams et al, 2019(Williams et al, , 2021.…”

Section: Farmers and Pastoralistsmentioning

confidence: 99%

“…Recent reconstructions have incorporated innovative methodological approaches to infer diet, including analyses of residues on stone tools (B. Hardy, 2010) and in dental calculus (K. Hardy et al, 2012, Henry et al, 2011Power et al, 2018), dental microwear texture analysis (El Zaatari et al, 2011, 2016Karriger et al, 2016;Estalrrich et al, 2017;Williams et al, 2018Williams et al, , 2019Williams et al, , 2021, dental macrowear (Fiorenza et al, 2011) and isotopic analyses (Bocherens et al, 2001;Richards and Trinkaus, 2009;Wißing et al, 2016). The remains of small, medium, large and very large faunal remains with cut-marks at Neandertal sites serve as evidence of meateating while isotopic values like those of carnivores imply a meat-laden diet (Jaouen et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…There is also much variation in the diet that signals adaptations corresponding to climatic changes that occurred during Marine Isotope Stages (MIS) 5 to 3 (Williams et al, 2018(Williams et al, , 2019(Williams et al, , 2021. The exact impact of global climate change on terrestrial ecosystems at these times is still hard to grasp, but appears highly variable geographically (Sánchez Goñi et al, 2008;Genty et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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