sexual size dimorphism
Sexual size dimorphism (ssd) and morphometric analysis of argiope anasuja (signature spider) of south Bangalore, Karnataka
... on Sexual Size Dimorphism, (SSD) and morphometric analysis of Argiope anasuja has revealed that the females are four times larger than males in their total body length measuring ...different ...
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Sexual size dimorphism in anurans fails to obey Rensch’s rule
... anurans, sexual size dimorphism is generally female-biased ...body size [30], directional selection for larger males [26], and dif- ferences in age structure between sexes [31,32], no infor- ...
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Sexual size dimorphism in anurans fails to obey Rensch’s rule
... anurans, sexual size dimorphism is generally female-biased ...body size [30], directional selection for larger males [26], and dif- ferences in age structure between sexes [31,32], no infor- ...
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Mass-mediated sex differences in climbing patterns support the gravity hypothesis of sexual size dimorphism
... of sexual size dimorphism can explain the patterns of extreme sexual size dimorphism in spiders (males smaller than females) because small males climb faster and therefore may be ...
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Differing mechanisms underlie sexual size-dimorphism in two populations of a sex-changing fish
... that sexual dimorphism can arise through differential growth by two mechanisms: a growth spurt coincident with sex-change; accumu- lation of a historical growth advantage for sex-changing individuals; or a ...
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Sexual size dimorphism in ground squirrels (Rodentia: Sciuridae: Marmotini) does not correlate with body size and sociality
... structural size measurements. Sexual differences in ground squirrel body mass are often more pronounced (for reviews see ...variable sexual body mass di- morphism was found in Utah prairie dogs ...
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Neither male gonadal androgens nor female reproductive costs drive development of sexual size dimorphism in lizards
... body size in a sex- specific manner (Starostová et ...appropriate size were dusted with vitamins (Roboran, Univit, Olomouc-Klášterní Hradisko, Czech Republic) and provided as food twice a week ad ...
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Sex hormones and the development of sexual size dimorphism: 5α dihydrotestosterone inhibits growth in a female larger lizard (Sceloporus undulatus)
... Female S. undulatus administered DHT exhibited phenotypic responses (e.g. decreased growth rate, development of male-typical ventral coloration) that were similar to or greater in magnitude than those observed in males. ...
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Only Half Right: Species with Female-Biased Sexual Size Dimorphism Consistently Break Rensch's Rule
... log(male) size (together with the interaction between log(male size) and family to allow for differences in slope between families) was sufficient to remove any phylogenetic structure from the residuals of ...
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Sexual size dimorphism in anurans: roles of mating system and habitat types
... mean size across 39 species and 18 gen- era from the literatures (Additional file 1: Table ...sample size in cases where data were available for different popula- tion ...of sexual selection on a ...
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Ovarian control of growth and sexual size dimorphism in a male larger gecko
... Sample size of each treatment group was maximized to robustly reveal differences and trends in traits compared within the space limitation of our climatic ...final size is important for the pattern of SSD ...
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Sexual Dimorphism of Body Size Is Controlled by Dosage of the X-Chromosomal Gene Myc and by the Sex-Determining Gene tra in Drosophila
... drives sexual dimorphism of body size through two means: first, through unbalanced expression of a key X-linked growth-regulating gene, and second, through female-specific activation of the ...
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Sexual Size and Shape Dimorphism in an Agamid Lizard Sitana Ponticeriana (Sauria: Agamidae)
... the size, which sometimes provides answer to separation of mature individuals of some ...that size at first reproduction and growth thereafter and both are potentially important determinates of adult ...
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The evolution of parental cooperation in birds
... predictors: sexual size dimorphism (log absolute SDI), extra-pair paternity (sqrt EPP), adult sex ratio (sqrt ASR bias), climatic variables (means and among- and within-year variations in temperature ...
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Tooth Size and Identity: Patterns of Sexual Dimorphism and Developmental Noise in a Modern Thai Sample.
... exhibit sexual size dimorphism also varies from region to region (Garn et ...odontometric sexual dimorphism is relatively low in humans, around 2-6% (Scott and Turner, 1997), and the ...
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Sexual dimorphism in the feeding mechanism of threespine stickleback
... The sexually dimorphic first principal component of excursion was most strongly correlated with strike distance and head elevation, followed by jaw protrusion, jaw rotation and excursion of the hyoid. The distribution of ...
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Evolution of the ungulate dewlap: thermoregulation rather than sexual selection or predator deterrence?
... Alternatively, according to the ‘Predator Deterrent Hy- pothesis’ , the dewlap has its selective advantage in com- munication with predators rather than conspecifics [10]. Small ungulates are vulnerable to a wider range ...
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Wing sexual dimorphism of pathogen vector culicids
... We first removed the allometric effect from all the ana- lyses as, although the study was a macroevolutionary one, we wanted to analyze shape and size separately. Canonical variate analysis revealed differences in ...
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... between sexual dimorphism and sexual attraction when the latter is evaluated by means of two scales: Attraction to Women and Attraction to ...between sexual dimorphism and the ...
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Sexual dimorphism in myocardial acylcarnitine and triglyceride metabolism
... In summary, these observations represent the first such report of sex differences in AC and TG metabolism as a potential metabolic signature of diabetes, which may contribute to downstream derangements in cardiac func- ...
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