Results 21 to 30 of about 39,975 (260)

Sexual dimorphism in innate immunity [PDF]

open access: yesArthritis & Rheumatism, 2002
To establish whether variation in innate immunity, as measured by the level of tumor necrosis factor (TNF) in lipopolysaccharide (LPS)-stimulated whole-blood culture, is related to sex or HLA.Normal volunteers (72 women, 159 men) completed questionnaires and donated peripheral blood specimens.
Moxley, G.   +6 more
openaire   +3 more sources

Measuring the Inter and Intraspecific Sexual Shape Dimorphism and Body Shape Variation in Generalist Ground Beetles in Russia

open access: yesInsects, 2020
Ground beetles in multiple species vary greatly in the expression of the shape on sexual traits, resulting in a sexual shape dimorphism as a consequence of sexual selection differences.
Hugo A. Benítez   +5 more
doaj   +1 more source

Understanding the evolution of ecological sex differences: Integrating character displacement and the Darwin‐Bateman paradigm

open access: yesEvolution Letters, 2019
Sex differences in selection arise for at least two possible reasons: (1) differences originating from anisogamy—the Darwin‐Bateman paradigm—and (2) competition‐driven ecological character displacement (ECD), agnostic of anisogamy.
Stephen P. De Lisle
doaj   +1 more source

SEXUAL SIZE DIMORPHISM IN STONE MARTEN (MARTES FOINA, ERXL. 1777) FROM SARNENA SREDNA GORA MTS (BULGARIA) [PDF]

open access: yesTrakia Journal of Sciences, 2019
Sexual dimorphism in body size measurements of 65 stone martens was investigated in winter periods (10.12.- 01.03) 2013 to 2017. There was found sexual dimorphism in body size of Stone Marten from Central Bulgaria: males were larger than females.
S. Peeva
doaj   +1 more source

Filling the gaps in ecology of tropical tiger beetles (Coleoptera: Cicindelidae): first quantitative data of sexual dimorphism in semi-arboreal Therates from the Philippine biodiversity hotspot [PDF]

open access: yesPeerJ
Background Sexual dimorphism, driven by sexual selection, leads to varied morphological distinctions in male and female insects, providing insights into selection pressures across species. However, research on the morphometric variability within specific
Dale Ann Acal   +2 more
doaj   +2 more sources

Sexual dimorphism in Ramapithecinae [PDF]

open access: yesProceedings of the National Academy of Sciences, 1982
The Ramapithecinae are an extinct, mainly Miocene group of hominoids comprising the genera Sivapithecus and Gigantopithecus. Ouranopithecus and Ramapithecus are other included genera, here regarded as invalid ...
openaire   +2 more sources

Symmetry is related to sexual dimorphism in faces: data across culture and species. [PDF]

open access: yesPLoS ONE, 2008
Many animals both display and assess multiple signals. Two prominently studied traits are symmetry and sexual dimorphism, which, for many animals, are proposed cues to heritable fitness benefits. These traits are associated with other potential benefits,
Anthony C Little   +7 more
doaj   +1 more source

Sexual dimorphism in campylobacteriosis

open access: yesEpidemiology and Infection, 2007
SUMMARYSexual dimorphism in infectious diseases whereby disease incidence is more prevalent in one gender has been reported repeatedly in the scientific literature. Both behavioural and physiological differences have been suggested as a cause of this gender bias but there is a paucity of data to support either of these viewpoints.
N J C, Strachan   +5 more
openaire   +3 more sources

Sexual dimorphism in the South American water snake Helicops polylepis (Serpentes: Dipsadidae)

open access: yesPhyllomedusa: Journal of Herpetology, 2021
Sexual selection, fecundity selection and ecological divergence have been the main explanations proposed for the origin and maintenance of sexual dimorphism.
Isla Carol Marialva Camargo   +5 more
doaj  

Sex on the Beach: Sexual Size Dimorphism Among Aquatic Bugs (Nepomorpha) Inhabiting Different Habitats

open access: yesEcology and Evolution
Aquatic bugs (Nepomorpha) are a species‐rich taxon of insects inhabiting all types of freshwaters, often at high densities, and some are among the dominant predators in aquatic food webs.
Gábor Bakonyi, Anikó Seres
doaj   +1 more source

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