Results 111 to 120 of about 23,789 (317)

Assessing population-level morphometric variation of the Mountain Mullet Agonostomus monticola (Teleostei: Mugilidae) across its Middle American distribution

Neotropical Ichthyology, 2017
Population-level morphometric variation of the Mountain Mullet (Agonostomus monticola) was assessed in 419 adult specimens from 25 sample sites (river basins) across its Middle American distribution (Pacific and Atlantic-Caribbean drainages).
Bertha P. Díaz-Murillo, Gorgonio Ruiz-Campos, Kyle R. Piller, Caleb D. McMahan, Francisco J. García-De-León, Faustino Camarena-Rosales   +5 more
doaj   +1 more source

Morphological and morphometric aspects of the equine aortic valve: New insights for comparative studies in mammals

The Anatomical Record, EarlyView.
Abstract New data on the equine aortic valve obtained using advanced techniques is especially important given the greater availability of animal models for translational research. Here we characterized the morphological and morphometric aspects of the equine aortic valve from 60 healthy hearts collected at equine abattoirs.
Vitor Pires Pereira, Victoria Brondani de Oliveira, Carlos Eduardo Seyfert, Luciano de Morais‐Pinto   +3 more
wiley   +1 more source

The comparative study of intra-specific variations in the various populations of Clinopodes flavidus (Geophlilomorpha, Geophilidae) in Alborz Mountain, using geometric morphometrics

یافته‌های نوین در علوم زیستی, 2020
The aim of this study was to determine the variations among cephalic plates of individuals in two populations of Clinopodes flavidus in Alborz Mountains, by means of landmark-based techniques of geometric morphometrics.
Roghaieh Zarei, Mahvash Seifali
doaj  

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

The Anatomical Record, EarlyView.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx, Oliver Kersten, Youri van den Hurk, Brenna A. Frasier, Richard Sabin, Bastiaan Star, James H. Barrett   +6 more
wiley   +1 more source

Evaluación del Perfil Nasal Mediante Morfometría Geométrica en una Muestra de Población Chilena. Implicancias Clínicas y Forenses [PDF]

, 2012
Schilling, A (Schilling, Alejandro). Univ Talca, Talca, ChileThe search of morphological patterns of nasal profile using traditional morphometrics has been the goal of several studies aiming to orient therapeutical planning and forensic techniques such ...
Galdames, I.S., Lopez, B., Schilling, A., Toro, V.   +3 more
core  

Ontogeny of murine bony semicircular canal form

The Anatomical Record, EarlyView.
Abstract The labyrinthine geometry and functional anatomy of the semicircular canals have intrigued scientists for decades, and there has been considerable interest in understanding how these complex structures grow and develop with evidence emerging from human studies that size maturation occurs exceptionally early by comparison with other systems ...
Marcela Cárdenas‐Serna, Nathan Jeffery   +1 more
wiley   +1 more source

Assessing the application of landmark-free morphometrics to macroevolutionary analyses

BMC Ecology and Evolution
The study of phenotypic evolution has been transformed in recent decades by methods allowing precise quantification of anatomical shape, in particular 3D geometric morphometrics.
James M. Mulqueeney, Thomas H. G. Ezard, Anjali Goswami   +2 more
doaj   +1 more source

When Shape Defines: Geometric Morphometrics Applied to the Taxonomic Identification of Leaf-Footed Bugs of the Genus Acanthocephala (Hemiptera: Coreidae)

Diversity
The study of qualitative morphological variation is essential for taxonomists and professionals involved in the identification and diagnosis of species of agricultural importance. This becomes particularly critical when quarantine decisions depend on the
Allan H. Smith-Pardo, Jordan Hernandez-Martelo, Manuel J. Suazo, Laura M. Pérez, Camila Peña-Aliaga, Juan Sebastian Garcia, Monserrat Saravia, Thania Acuña-Valenzuela, Hugo A. Benítez, Margarita Correa   +9 more
doaj   +1 more source

When size makes a difference: allometry, life-history and morphological evolution of capuchins (Cebus) and squirrels (Saimiri) monkeys (Cebinae, Platyrrhini)

BMC Evolutionary Biology, 2007
Background How are morphological evolution and developmental changes related? This rather old and intriguing question had a substantial boost after the 70s within the framework of heterochrony (changes in rates or timing of development) and nowadays has ...
Marroig Gabriel
doaj   +1 more source

Hard and soft tissue shape variation and changes in Class II division 1 malocclusion during orthodontic treatment: a geometric morphometric analysis [PDF]

, 2023
Chin Sin Chu, Murshida Marizan Nor, Alizae Marny Fadzlin Syed Mohamed, Helmi Hadi   +3 more
openalex   +1 more source