Results 11 to 20 of about 609 (154)

Within‐guild dietary discrimination from 3‐Dtextural analysis of tooth microwear in insectivorous mammals [PDF]

open access: yesJournal of Zoology, 2013
AbstractResource exploitation and competition for food are important selective pressures in animal evolution. A number of recent investigations have focused on linkages between diversification, trophic morphology and diet in bats, partly because their roosting habits mean that for many bat species diet can be quantified relatively easily through faecal
Mark A Purnell   +2 more
exaly   +5 more sources

Trophic evolution in ornithopod dinosaurs revealed by dental wear [PDF]

open access: yesNature Communications
Ornithopod dinosaurs evolved numerous craniodental innovations related to herbivory. Nonetheless, the relationship between occlusion, tooth wear rate, and tooth replacement rate has been neglected. Here, we reconstruct tooth wear rates by measuring tooth
Attila Ősi   +9 more
doaj   +2 more sources

On the use of dental microwear texture analysis to determine aetiology and assess wear of dental tissues for clinical evaluation [PDF]

open access: yesBiosurface and Biotribology
Here, we present and synthesise some recent collaborative efforts in our laboratories to establish protocols for using dental microwear texture analysis, originally developed to reconstruct diets of fossil mammals and to aid in the clinical assessment of
Peter S. Ungar, Anderson T. Hara
doaj   +2 more sources

Dietary ecology of Smilodon across time and space: Additional perspectives from Smilodon gracilis and Smilodon fatalis in Florida. [PDF]

open access: yesAnat Rec (Hoboken)
Dental microwear texture analysis of Smilodon samples from Florida's Pleistocene reveals moderate carcass utilization (like modern African lions) across space and time, with more subtle dietary shifts in response to fluctuating climates. Abstract Smilodon, the iconic saber‐toothed cat, was a Pleistocene apex predator comprised of three morphologically ...
Pardo-Judd J, DeSantis L.
europepmc   +2 more sources

Description of the skull, braincase, and dentition of Moschognathus whaitsi (Dinocephalia, Tapinocephalia), and its palaeobiological and behavioral implications. [PDF]

open access: yesAnat Rec (Hoboken)
Abstract A subadult Moschognathus whaitsi from the Eastern Cape Province, South Africa, was scanned using synchrotron radiation X‐ray computed tomography (SRXCT). Its subadult state allowed the cranial bones and teeth to be identified and individually reconstructed in 3D.
Lafferty T   +3 more
europepmc   +2 more sources

Reconstruction of feeding behaviour and diet in Devonian ctenacanth chondrichthyans using dental microwear texture and finite element analyses [PDF]

open access: yesRoyal Society Open Science
Devonian ctenacanth chondrichthyans reached body sizes similar to modern great white sharks and therefore might have been apex predators of the Devonian seas.
Merle Greif   +5 more
doaj   +2 more sources

Neandertal predation agenda reveals seasonal strategies during MIS 5–4 transition in Axlor, northatlantic Iberia [PDF]

open access: yesScientific Reports
As hunter-gatherers, neandertal groups were mobile, moving within their territory based on the availability of targeted resources. Their mobility was an integral part of their subsistence strategies.
Antigone Uzunidis   +3 more
doaj   +2 more sources

Tooth microwear formation rate in Gasterosteus aculeatus. [PDF]

open access: yesJ Fish Biol, 2014
Tooth microwear feature densities were significantly increased in a population of laboratory‐reared three‐spined stickleback Gasterosteus aculeatus in four days, after they were transferred from a limnetic feeding regime to a benthic feeding regime. These results show that even in aquatic vertebrates with non‐occluding teeth, changes in feeding can ...
Baines DC, Purnell MA, Hart PJ.
europepmc   +4 more sources

Lifestyle changes and its effect towards the evolution of human dentition

open access: yesEgyptian Journal of Forensic Sciences, 2022
Background The dentition of modern humans has evolved from their hominid ancestors to their current form. Factors regarding the changes of lifestyle such as dietary habits and usage of tools have affected the evolution of human dentition.
Arofi Kurniawan   +5 more
doaj   +1 more source

Experimental approaches to assess the effect of composition of abrasives in the cause of dental microwear

open access: yesRoyal Society Open Science, 2022
Dental microwear is used to investigate feeding ecology. Animals ingest geological material in addition to food. The full effect of geological abrasives on tooth wear is unknown.
Matthew C. Mihlbachler   +2 more
doaj   +1 more source

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