Results 21 to 30 of about 124,493 (301)

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

Sex-biased parental care and sexual size dimorphism in a provisioning arthropod [PDF]

open access: yes, 2015
The diverse selection pressures driving the evolution of sexual size dimorphism (SSD) have long been debated. While the balance between fecundity selection and sexual selection has received much attention, explanations based on sex-specific ecology have ...
A Herrel   +87 more
core   +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

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

open access: yesAnnual Review of Anthropology, 1985
doi:10.1146/annurev.an.14.100185.002241 ; Annual Review of Anthropology http://arjournals.annualreviews.org/loi ...
Frayer, David W., Wolpoff, Milford H.
openaire   +3 more sources

Face and voice attractiveness judgments change during adolescence [PDF]

open access: yes, 2009
Attractivenessjudgments are thought to underpin adaptive mate choice decisions. We investigated how these judgmentschange during adolescence when mate choice is becoming relevant.
DeBruine, Lisa   +4 more
core   +4 more sources

Sexual dimorphism in the loud calls of Azara’s owl monkeys (Aotus azarae): evidence of sexual selection? [PDF]

open access: yes, 2019
Primates use different types of vocalizations in a variety of contexts. Some of the most studied types have been the long distance or loud calls. These vocalizations have been associated with mate defense, mate attraction, and resource defense, and it ...
Adret, Patrice   +5 more
core   +2 more sources

Effect of the MC1R gene on sexual dimorphism in melanin-based colorations. [PDF]

open access: yes, 2015
Variants of the melanocortin-1 receptor (MC1R) gene result in abrupt, naturally selected colour morphs. These genetic variants may differentially affect sexual dimorphism if one morph is naturally selected in the two sexes but another morph is naturally ...
Béziers, P.   +6 more
core   +1 more source

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

Sex Ratio and Sexual Dimorphism in \u3ci\u3eFormica Exsectoides\u3c/i\u3e, the Allegheny Mound Ant (Hymenoptera: Formicidae) [PDF]

open access: yes, 2018
We excavated 66 mounds from 6 populations of Formica exsectoides in Michigan jack pine, collecting sexual caste pupae for sex ratio estimates and measurement of dimorphism.
Bristow, C. M, Rowe, H. C
core   +2 more sources

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