Results 41 to 50 of about 23,789 (317)

Using traditional biometrical data to distinguish West Palearctic wild boar and domestic pigs in the archaeological record : new methods and standards [PDF]

open access: yes, 2013
Peer ...
Cucchi, Thomas   +6 more
core   +1 more source

Leaf shape and size variability of Dryas octopetala in the Central Great Caucasus (the Kazbegi region, Georgia) based on traditional and geometric morphometrics [PDF]

open access: yesBotanica Serbica
While soil pH is known to be a key driver of plant species composition, we still have a poor understanding of the quantification of the responses of leaf traits to different soil types, especially in highly sensitive alpine environments susceptible to
Jana Ekhvaia   +3 more
doaj   +1 more source

Morphometric Identification of Queens, Workers and Intermediates in In Vitro Reared Honey Bees (Apis mellifera).

open access: yesPLoS ONE, 2015
In vitro rearing is an important and useful tool for honey bee (Apis mellifera L.) studies. However, it often results in intercastes between queens and workers, which are normally are not seen in hive-reared bees, except when larvae older than three days
Daiana A De Souza   +6 more
doaj   +1 more source

Challenges in identifying and interpreting organizational modules in morphology [PDF]

open access: yes, 2017
Form is a rich concept that agglutinates information about the proportions and topological arrangement of body parts. Modularity is readily measurable in both features, the variation of proportions (variational modules) and the organization of topology ...
Esteve-Altava, B
core   +1 more source

Geometric morphometric footprint analysis of young women [PDF]

open access: yesJournal of Foot and Ankle Research, 2013
AbstractBackgroundMost published attempts to quantify footprint shape are based on a small number of measurements. We applied geometric morphometric methods to study shape variation of the complete footprint outline in a sample of 83 adult women.MethodsThe outline of the footprint, including the toes, was represented by a comprehensive set of 85 ...
Domjanic, Jacqueline   +3 more
openaire   +4 more sources

Comprehensive Methods for Leaf Geometric Morphometric Analyses [PDF]

open access: yesBIO-PROTOCOL, 2017
Leaf morphometrics are used frequently by several disciplines, including taxonomists, systematists, developmental biologists, morphologists, agronomists, and plant breeders to name just a few. Leaf shape is highly variable and can be used for identifying species or genotypes, developmental patterning within and among individuals, assessing plant health,
Laura Klein, Harlan Svoboda
openaire   +3 more sources

Head morphology in three species of tiger beetles (Coleoptera: cicindelidae): a geometric morphometric study

open access: yesThe European Zoological Journal
Tiger beetles are one of the world’s most studied groups of insects. They are similar in body shape and proportions and have a well-sclerotized head with large protruding eyes that make it wider than the pronotum.
Y. Koçak   +5 more
doaj   +1 more source

Chagas vectors Panstrongylus chinai (Del Ponte, 1929) and Panstrongylus howardi (Neiva, 1911): chromatic forms or true species?

open access: yesParasites & Vectors, 2020
Background Chagas disease is a parasitic infection transmitted by “kissing bugs” (Hemiptera: Reduviidae: Triatominae) that has a huge economic impact in Latin American countries.
Anita G. Villacís   +8 more
doaj   +1 more source

DeepWings©: Automatic Wing Geometric Morphometrics Classification of Honey Bee (Apis mellifera) Subspecies Using Deep Learning for Detecting Landmarks

open access: yesBig Data and Cognitive Computing, 2022
Honey bee classification by wing geometric morphometrics entails the first step of manual annotation of 19 landmarks in the forewing vein junctions. This is a time-consuming and error-prone endeavor, with implications for classification accuracy. Herein,
Pedro João Rodrigues   +2 more
doaj   +1 more source

New systematic insights about plio-pleistocene moles from poland [PDF]

open access: yes, 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
core   +2 more sources

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