Results 11 to 20 of about 1,074,895 (298)
Journal of Lithic Studies, 2020 Nowadays, the fruitful discussion regarding the morphological variability of handaxes during the Middle Pleistocene has reached a decisive moment with the use of more accurate statistical methods, such as geometric morphometrics (GM) and multivariate ...
Paula García-Medrano +3 more
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The Inappropriate Symmetries of Multivariate Statistical Analysis in Geometric Morphometrics [PDF]
Evolutionary Biology, 2016 In today's geometric morphometrics the commonest multivariate statistical procedures, such as principal component analysis or regressions of Procrustes shape coordinates on Centroid Size, embody a tacit roster of symmetries-axioms concerning the homogeneity of the multiple spatial domains or descriptor vectors involved-that do not correspond to actual ...
F. Bookstein
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Multivariate morphometrics of the Indian honeybee in the northwest Himalayan region [PDF]
Apidologie, 1994 Cinquante-cinq caracteres morphometriques (tableau II) d'abeilles Apis cerana provenant de 20 localites des Etats d'Himachal Pradesh et de Jammu et Cachemire dans le nord-ouest de l'Himalaya ont ete soumis a des analyses statistiques multivariees. Deux groupes ont ete identifies apres analyse discriminante et analyse de groupe (fig 1). Les groupes sont
L. R. Verma, V. K. Mattu, H. V. Daly
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Males resemble females. re-evaluating sexual dimorphism in protoceratops andrewsi (neoceratopsia, protoceratopsidae) [PDF]
, 2015 BACKGROUND: Protoceratops andrewsi (Neoceratopsia, Protoceratopsidae) is a well-known dinosaur from the Upper Cretaceous of Mongolia. Some previous workers hypothesized sexual dimorphism in the cranial shape of this taxon, using qualitative and ...
Farke, Andrew A. +3 more
core +14 more sources
Assessment of morphological variation between stocks of bluefish, Pomatomus saltatrix (Actinopterygii, Perciformes, Pomatomidae), in the Aegean Sea, Black Sea, and Sea of Marmara [PDF]
Acta Ichthyologica et Piscatoria, 2021 The population structure of the bluefish, Pomatomus saltatrix (Linnaeus, 1766), in Turkish waters is scarcely described in the literature. To identify any distinct population units of bluefish, and reaffirm the findings of a previous study, four areas ...
Habib Bal, Telat Yanik, Dilek Türker
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Sociobiology, 2023 This study investigated the morphometric variation in Melipona scutellaris stingless bees rational hive boxes from five states, inserted into the natural range of the species occurrence in northeastern Brazil.
Edilson Divino de Araujo +3 more
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New systematic insights about plio-pleistocene moles from poland [PDF]
, 2016 The generic attribution of the Plio-Pleistocene Polish moles ?Neurotrichus polonicus and ?Neurotrichus skoczeni has been questioned several times in the past.
Kotsakis, Tassos +2 more
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Zoologia (Curitiba), 2009 The taxonomic status and the geographical distribution of the specimens from southern Brazil previously identified as members of the Eumops bonariensis (Peters, 1874) species complex are here reviewed based on specimens deposited in collections of the ...
Itiberê P. Bernardi +2 more
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Momocs: Outline Analysis Using R
Journal of Statistical Software, 2014 We introduce here Momocs, a package intended to ease and popularize modern morphometrics with R, and particularly outline analysis, which aims to extract quantitative variables from shapes. It mostly hinges on the functions published in the book entitled
Vincent Bonhomme +3 more
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Variation in mandible shape and size due to osteoporosis: Geometric morphometrics study
International Journal of Interdisciplinary Dentistry, 2023 Objective: Assessing whether it is possible screening women with osteoporosis through geometric morphometrics based on panoramic x-ray. Materials and Methods: Leukoderma women, after menopause, 40 years old (or older), with confirmed medical diagnosis ...
Warli Ferreira +5 more
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