Gender-Related Differences in Pelvic Morphometrics of the Retriever Dog Breed

Nganvongpanit, Korakot; Pitakarnnop, Tanita; Buddhachat, Kittisak; Phatsara, Manussabhorn

doi:10.1111/ahe.12232

Cited by 18 publications

(27 citation statements)

References 31 publications

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“…The hip bones are joined in the ventral region by the cartilaginous pubic symphysis (symphysis pelvina), whereas the sacrum (os sacrum) is joined in the dorsal portion of the pelvic bones de Lahunta, 2009, 2013). The pelvis forms a complex structure, which differs in both shape and size between the sexes, even in species that exhibit little or no sexual dimorphism in size or shape (Kryštufek, 1998;Schulte-Hostedde et al, 2001;Carrier et al, 2005;Clair, 2007;Berdnikovs et al, 2007;Balčiauskas, 2009, 2016;Schutz et al, 2009aSchutz et al, , 2009bCarlon and Hubbard, 2012;Parés-Casanova and Martinéz, 2014;Nganvongpanit et al, 2017;Matysiak et al, 2017). The pelvis serves two main functions, which largely determine its shape.…”

Section: Introductionmentioning

confidence: 99%

“…Second, the pelvis supports the posterior viscera and reproductive tract. Sexual size dimorphism (SSD) of the pelvis is a consequence of its differential role in male and female reproduction, as females are affected by bearing additional weight during pregnancy, and full-term fetuses pass through the female birth canal (Carrier et al, 2005;Schutz et al, 2009aSchutz et al, , 2009bNganvongpanit et al, 2017;Matysiak et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Pelvic and sacral size dimorphism and allometry in two predatory carnivores with different life histories and locomotory adaptations

Csanády¹,

Krišovský²,

Hlôška³

2019

Turk J Zool

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Sexual size dimorphism (SSD) of the wolf and the lynx was evaluated for 15 pelvic and sacral variables in 48 specimens from the Western Carpathians. Our data confirmed small male-biased SSD in the pelvic and sacral bones for both species. We suggest that this can be explained by the need for a compromise between requirements for locomotion and giving birth. We also confirmed that significant differences exist between the species in the size of the pelvic and sacral bones. We discuss our findings in light of the species' different life histories.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pelvic and sacral size dimorphism and allometry in two predatory carnivores with different life histories and locomotory adaptations

Csanády¹,

Krišovský²,

Hlôška³

2019

Turk J Zool

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Section: Discussionmentioning

confidence: 99%

“…Sexual dimorphism of the pelvic bone has been described in humans (20), non-human primates (21), Retriever dogs (22) and domestic cats (8), whereas it is not present in the German shepherd dog (10). This dimorphism can be characterized by a difference in pelvic size and/or pelvic conformation, and if these differences are marked, they can contribute to the sex determination of an individual (20,22). In Eurasian lynx, Canada lynx and domestic cat (5,8,18), sexual dimorphism of the pelvis is characterized by a larger pelvis size in males, in agreement with their larger body size (17,18,23), and by a different pelvic conformation, the pelvis of females being wider.…”

Section: Discussionmentioning

confidence: 99%

Pelvic bone structures in free-ranging Eurasian lynx (Lynx lynx) from Switzerland: a radiological pelvimetry study

Morend

Lang

Vidondo

et al. 2019

Preprint

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16The observation of severe pelvic malformations in Eurasian lynx (Lynx lynx) from a 17 population reintroduced to Switzerland raised the question as to whether inbreeding may 18 contribute to the development of congenital pelvic malformations. We aimed at providing 19 baseline data on the pelvic morphology of Eurasian lynx from the reintroduced populations in 20 Switzerland, at assessing potential differences in pelvic conformation between the two main 21 Swiss populations, among age classes and between sexes, and at detecting pelvic anomalies. 22 We performed measurements of 10 pelvic parameters on the radiographs of 57 lynx of both 23 sexes and different ages taken from 1997-2015. We calculated two ratios (vertical 24 diameter/acetabula; sagittal diameter/transversal diameter) and two areas (pelvic outlet and 25 inlet) to describe the shape of the pelvis. Our results showed that the Eurasian lynx is a 26 mesatipelvic species, with a pelvis length corresponding to approximatively 20% of the body 27 length. We found no statistically significant differences between the two examined 28 populations but observed growth-related pelvis size differences among age groups. Sexual 29 dimorphism was obvious in the adult age group only: two parameters reflecting pelvic width 30 were larger in females, likely to meet the physiological requirements of parturition. By 31 contrast, pelvis length, conjugata vera, diagonal conjugata, vertical diameter and sagittal 32 diameter were larger in males, in agreement with their larger body size. Accordingly, the ratio 33 between the sagittal and transversal diameters was significantly larger in males, i.e. adult 34 males have a different pelvic shape than adult females. Furthermore, pelvimetry highlighted 35 one adult individual with values outside the calculated reference range, suggesting a possible 36 congenital or developmental pathological morphology of the internal pelvis. Our work 37 generated baseline data of the pelvic morphology including growth and sexual dimorphism of 38 the Eurasian lynx. These data could also be useful for estimating age and sex in skeletal 39 remains. 42 end of the 19th century. Following habitat improvementy and prey recovery, lynx 43 reintroductions took place in the 1970s, with lynx imported from the Capathian Mountains in 44 Slovakia. In Switzerland, two small distinct lynx populations resulted from these releases: one 45 in the Swiss Alps extending slightly into France and Italy, and another one in the Jura 46 Mountains at the border with France, both estimated at approximatively 100-150 independent 47 lynx, with a total of approximately 130-140 lynx in the Swiss territory (1). However, these 48 populations are now characterized by a low genetic variability and a high inbreeding 49 coefficient (2). 50 A lynx health monitoring program has been conducted at the Centre for Fish and 51 Wildlife Health (FIWI) in Switzerland for several decades, including necropsies of carcasses, 52 clinical examinations of live lynx and systematic sampling. From 200...

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“…Studies on the pelvic morphology and morphometric characteristics related to sex and age are well established in humans- Homo sapiens 10 , 11 as well in various species of land mammals such as dogs Canis familiaris 12 , cats Felis catus 13 , 14 , hylobatids Hylobates lar and Symphalangus syndactylus 15 and rats Rattus norvegicus 16 . However, in marine mammals, and in particular for an endangered species like the dugong, these data have not yet been well established.…”

Section: Introductionmentioning

confidence: 99%

Pelvic bone morphometric analysis in the dugong (Dugong dugon)

Nganvongpanit

Cherdsukjai

Boonsri

et al. 2020

Sci Rep

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The dugong (Dugong dugon Müller) is recognized as an endangered marine mammal. There is limited available anatomical data on the dugong’s skeletal system, while what is available has not been well established due to the limited number of archived samples and limited access to them. Importantly, there are certain key questions that should be answered when examining the bones and/or remains of animals such as; what kind of bone is it?; what species does it belong to?; what sex was the animal?; how old was the animal? or how big was it?, etc. In this study, we have focused on the pelvic bone of the dugong by asserting the hypothesis that pelvic bone morphology is related to age, sex, and body size. Here, we have established certain morphometric data encompassing 8 parameters and 5 indexes to analyze the morphology of the pelvic bones obtained from 88 specimens (45 dugongs). We will present three main findings: (1) the pelvic bone in mature male subjects is larger than it is in female subjects, (2) a high rate of accuracy can be established for sex identification using morphometric data obtained from the pelvic bone, and (3) the pelvic bone has the highest degree of correlation with body length, followed by body weight and age. Notably, the important data on the pelvic bone of the dugong acquired in this study can be reliable and extremely useful in sex identification and body size estimation.

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Gender-Related Differences in Pelvic Morphometrics of the Retriever Dog Breed

Cited by 18 publications

References 31 publications

Pelvic and sacral size dimorphism and allometry in two predatory carnivores with different life histories and locomotory adaptations

Pelvic and sacral size dimorphism and allometry in two predatory carnivores with different life histories and locomotory adaptations

Pelvic bone structures in free-ranging Eurasian lynx (Lynx lynx) from Switzerland: a radiological pelvimetry study

Pelvic bone morphometric analysis in the dugong (Dugong dugon)

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