Sexual dimorphism and variability of craniomandibular morphology in the Japanese giant flying squirrel, Petaurista leucogenys (Rodentia: Sciuridae)

Biswas, Jadab Kumar; Oshida, Tatsuo; Motokawa, Masaharu

doi:10.1016/j.jcz.2020.01.003

Cited by 7 publications

(7 citation statements)

References 55 publications

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“…The overall body size and specific morphological traits of an organism are usually subject to natural selection (Andersson, 1994;Szekely et al, 2007;Nandini, 2011). In most mammals, male-biased sexual dimorphism prevails, whereas female-biased sexual dimorphism is found in cetaceans, bats, and flying squirrels (Schulte-Hostedde, 2007;Nandini, 2011;Biswas et al, 2020).…”

Section: Journal Of Animal Diversity (2023) | © Lorestan University P...mentioning

confidence: 99%

“…The Mann-Whitney U-test was used to investigate differences in each variable between the sexes (Prevosti and Lamas, 2006;Biswas and Motokawa, 2019). Principal component analysis (PCA) was carried out based on the correlation matrix of log-transformed data to determine the intraspecific morphological variation (Motokawa et al, 2003;Biswas et al, 2020). We conducted a linear discriminant analysis (LDA) to examine the overall distinctiveness between the sexes (Fernández-Arjona et al, 2017;Biswas and Motokawa, 2019).…”

Section: Morphometric Analysesmentioning

confidence: 99%

“…Secondary sexual dimorphism is the difference in body characteristics between males and females of the same species (Issac, 2005;Biswas et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Sexual dimorphism in external morphology and pelvis of the lesser bandicoot rat, Bandicota bengalensis (Gray, 1835) (Mammalia: Rodentia: Muridae)

Roy,

Das,

Uddin

et al. 2023

JAD

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We used linear morphometric measurements to assess secondary sexual dimorphism in the external traits and pelvis of the lesser bandicoot rat, Bandicota bengalensis (Gray). Multivariate analysis of variance revealed significant difference between the sexes in both external (Wilks' lambda = 0.542, F = 3.378, P < 0.05) and pelvis measurements (Wilks' lambda = 0.238, F = 10.05, P < 0.05). Males were larger than females in most of the external traits. In contrast, females were larger in most variables of the pelvis. Separation between the sexes was also demonstrated in the discriminant analysis. Although allometric slopes did not differ between the sexes, means adjusted for allometry were sexually dimorphic in five out of seven variables of the pelvis. In conclusion, our results revealed differential patterns of secondary sexual dimorphism for the external morphology and pelvis in B. bengalensis. These patterns are explained with respect to the accessible evolutionary theories on mammalian sexual dimorphism.

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Section: Journal Of Animal Diversity (2023) | © Lorestan University P...mentioning

confidence: 99%

Section: Morphometric Analysesmentioning

confidence: 99%

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Sexual dimorphism in external morphology and pelvis of the lesser bandicoot rat, Bandicota bengalensis (Gray, 1835) (Mammalia: Rodentia: Muridae)

Roy,

Das,

Uddin

et al. 2023

JAD

Self Cite

View full text Add to dashboard Cite

show abstract

“…We calculated the arithmetic mean (M), standard deviation (SD), and coefficient of variation (CV) for all measurements of long limb-bone morphology. We used the Mann-Whitney U-test to analyze the significance of right-left difference in the longest limb bones and sexual dimorphism for each variable (Biswas and Motokawa 2019;Biswas et al 2020). The Pearson correlation coefficient was used to examine the correlation patterns of limb bone variables with the total length of the respective bones (Motokawa et al 2003;Suzuki et al 2012).…”

Section: Statistical Analysesmentioning

confidence: 99%

“…We also conducted the principal component analysis (PCA) to analyze the intraspecific variation of limb bone variables based on the correlation matrix of log-transformed data (Motokawa et al 2003;Biswas et al 2020). The significance level for all statistical tests was set at 5%.…”

Section: Statistical Analysesmentioning

confidence: 99%

Morphological Patterns of the Long Limb Bones in the Lesser Bandicoot Rat, Bandicota Bengalensis (Rodentia: Muridae)

Das,

Roy,

Biswas

2023

Bangladesh J. Zool.

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We examined the morphological patterns of long limb bones in the Lesser Bandicoot rat (Bandicota bengalensis) using univariate, bivariate and multivariate statistical analyses. A total of 18 morphometric measurements were taken using 30 adult specimens (11 males and 19 females) of B. bengalensis. The univariate analysis revealed non-significant right-left difference in the longest limb bones. Therefore, right side limb bones were used for further analyses. For most of the limb bone measurements, the mean values of the males were slightly larger than that of the females. However, the coefficient of variation did not differ significantly between the sexes. Most measurements of the fore limb and hind limb bones were significantly correlated with the length of respective bones. Allometric analysis exhibited isometry for many of the variables of humerus, ulna, femur, and tibia against the length of respective bones. These trends were also implied by the principal component analysis, as high factor loadings were observed for 80% and 75% variables of the forelimb and hindlimb, respectively. The epicondylar regions of the stylopodial bones (humerus and femur) and the width of radius showed non-significant correlation and/or negative allometry. Finally, our results suggest slightly male-biased sexual size dimorphism in the long limb bones and the growth patterns of the bone parts are greatly variable might be linked to the individual bone functions. Bangladesh J. Zool. 51(2): 191-203, 2023

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Developmental instability and body condition in rodents: industrialized agriculture disturbances in anthromes from central Argentina

Martini,

Priotto,

Serafini

et al. 2024

Mamm Biol

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Sexual dimorphism and variability of craniomandibular morphology in the Japanese giant flying squirrel, Petaurista leucogenys (Rodentia: Sciuridae)

Cited by 7 publications

References 55 publications

Sexual dimorphism in external morphology and pelvis of the lesser bandicoot rat, Bandicota bengalensis (Gray, 1835) (Mammalia: Rodentia: Muridae)

Sexual dimorphism in external morphology and pelvis of the lesser bandicoot rat, Bandicota bengalensis (Gray, 1835) (Mammalia: Rodentia: Muridae)

Morphological Patterns of the Long Limb Bones in the Lesser Bandicoot Rat, Bandicota Bengalensis (Rodentia: Muridae)

Developmental instability and body condition in rodents: industrialized agriculture disturbances in anthromes from central Argentina

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