Results 121 to 130 of about 5,772 (210)

The Investigation of Sexual and Species Dimorphism in the Foot of Chukar Partridge (Alectoris chukar) and Gray Partridge (Perdix perdix) Using Geometric Morphometric and Symmetric Analyses

open access: yesVeterinary Sciences and Practices
Morphological differences can provide insights into species' ecological adaptations and evolutionary processes. This study focuses on examining the effects of sex and species dimorphism on foot morphology in two different partridge species, the Chukar ...
Mustafa Sedat Arslan, Hacer Baş Ekici
doaj   +1 more source

Rhodnius robustus in Bolivia identified by its wings

open access: yesMemorias do Instituto Oswaldo Cruz, 2001
Wings of a Rhodnius specimen from Alto Beni (Bolivia) was examined for identification and compared with R. stali, R. robustus, (certified Bolivian species), R. pictipes and R. prolixus (suspected Bolivian species).
Matias A   +3 more
doaj  

Computational Morphometry of the Löwenmensch: Unveiling Geometric Form in Palaeolithic Ivory

open access: yes
The Löwenmensch (lion-man) figurine, discovered in the Hohlenstein-Stadel cave in Germany, stands as one of the oldest and most enigmatic examples of figurative art, dating back approximately 40,000 years to the Upper Palaeolithic period. Carved from mammoth ivory, this zoo-anthropomorphic sculpture presents a unique challenge for archaeological ...
Revista, Zen, HISTORY, 10
openaire   +2 more sources

FIGURE 5 in Geometric morphometry and molecular analysis clarified the identity of Opius sp. aff. bellus (Hymenoptera, Braconidae), a fruit fly parasitoid in Brazil

open access: yes, 2014
FIGURE 5. Neighbour-Joining (NJ) linearized trees produced from the alignment of nucleotides of the 28S rDNA D2 region from Opius bellus and Opius sp. specimens from populations collected in several Brazilian states and other Opius species obtained from ...
Marinho, Cláudia F.   +2 more
core   +1 more source

Geometric - morphometric study of gastropod shells \kur{Hexaplex trunculus} from Croatian coast line of the Adriatic sea

open access: yes, 2009
The shape variability of three hundred shells of sea snail Hexaplex trunculus (Linné, 1758) of three sites of Croatian coast line was compared. No criteria were found for distinguishing among males, females and imposex disabled females by traditional ...
MACÍK, Jiří
core  

Multimarker Analysis Reveals Ecological Islands in Hybrid Complexes: The Case of Quercus castanea × Q. crassipes Complex (Fagaceae) in Central Mexico

open access: yesDiversity
Hybridization is frequent in oaks and may drive various evolutionary and ecological effects on involved plant populations and their associated species. Quercus castanea is a species of Mexican red oak that has served as a valuable model for examining the
Leticia Valencia-Cuevas   +5 more
doaj   +1 more source

Contrasting effects of vocabulary knowledge on temporal and parietal brain structure across lifespan

open access: yes, 2010
Using behavioral, structural, and functional imaging techniques, we demonstrate contrasting effects of vocabulary knowledge on temporal and parietal brain structure in 47 healthy volunteers who ranged in age from 7 to 73 years.
Thomas, Michael S.C.   +9 more
core   +1 more source

Geometric Morphometry Analysis of the Scapula: Implications for the Determination of Sex and Ancestry

open access: yes, 2004
The nascent but growing field of geometric morphometrics has proved to be a useful tool in the investigation of shape differences of skeletal elements of various populations. Until recently, most anthropological studies using geometric morphometrics have
Snow, Frederick John
core  

Morphological differentiation between seven brazilian populations of Haemagogus Capricornii and HG. Janthinomys (Diptera: Culicidae) using geometric morphometry of the wings

open access: yes
Introduction: Haemagogus capricornii and Hg. janthinomys females are considered morphologically indistinguishable. We analyzed morphometric variability between Brazilian populations of these species using wing geometric morphometry.
Alencar, Jeronimo   +3 more
core  

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