scholarly journals Variation of craniometrical characters in an artificial population of Cervus nippon from Askania-Nova, Ukraine

2020 ◽  
Vol 2020 (19) ◽  
pp. 54-59
Author(s):  
Viktoria Smagol ◽  
◽  
Vitaliy Smagol ◽  
Keyword(s):  
Natural Population ◽  
Sika Deer ◽  
Principal Component ◽  
Cervus Nippon ◽  
Mean Value ◽  
Primorsky Krai ◽  
Coefficient Of Correlation ◽  
Condylobasal Length ◽  
Study Results ◽  
Males And Females

Craniometrical characters of adult sika deer from an artificial population, which was created by import of animals from a natural population from the Primorsky Krai of Russia, are analysed. It was revealed that the mean value of variation (by 11 characters) of skulls of sika deer is 3.56 ± 0.35 in males and 3.89 ± 0.33 in females. Males are significantly larger than females (p < 0.001) by all characters. The study of craniometrical characters of the sika deer using principal component analysis showed that 93.3 % of total variance is described by the first principal component (PC1). The highest, though quite equal, factor loadings on PC1 have characters of length (full length, condylobasal length, basic length). Study results suggest that sex-related differences in C. nippon by craniometrical characters are expressed by general linear dimensions and by proportions of the skull. The correlation matrix of craniometrical characters of adult sika deer from the Askanian subpopulation shows a relatively weak dependence between different parameters. It was established that the coefficient of correlation in most pairs of characters varies from 0.02 to 0.96 in males and from 0.01 to 0.97 in females. The highest coefficients of correlation in both males and females (r = 0.96 and r = 0.97, respectively) are revealed between the condylobasal and basal lengths of the skull. Correlations between cranial indices are significantly lower compared to craniometrical characters. The highest coefficient of correlation in both males and females has the variation of the index of mastoid width in relation to the relative largest skull width (r = 0.72). Skulls of sika deer from the Askanian subpopulation (of both males and females) have significantly larger dimensions compared to those in animals from the natural population from the Primorsky Krai.

Vocalizations in red deer (Cervus elaphus), sika deer (Cervus nippon), and red × sika hybrids

1998 ◽  
Vol 244 (1) ◽  
pp. 123-134 ◽  
Author(s):  
A. M. Long ◽  
N.P. Moore ◽  
T. J. Hayden
Keyword(s):  
Cervus Elaphus ◽  
Red Deer ◽  
Sika Deer ◽  
Cervus Nippon

Perimeter of The Tricuspid Valve: A Cadaveric Human Heart Study

2020 ◽  
Vol 11 (3) ◽  
pp. 3424-3428
Author(s):  
Kirti Chaudhary ◽  
Amey Dhatrak ◽  
Brij Raj Singh ◽  
Ujwal Gajbe
Keyword(s):  
Tricuspid Valve ◽  
Tricuspid Regurgitation ◽  
Right Ventricular Dysfunction ◽  
Mean Value ◽  
Female Population ◽  
Functional Tricuspid Regurgitation ◽  
Lv Dysfunction ◽  
Heart Study ◽  
Males And Females ◽  
The Right

Historically, the research on the right ventricle (RV) has been neglected by his left equivalent because of the complexity of left ventricle (LV) dysfunction. Tricuspid regurgitation (TR) can be classified as linked to primary valve disease or functional in nature, but most are functional. Although it was historically assumed that such functional Tricuspid regurgitation, i.e. arising from leftsided disease, and it can be resolved after corrective surgery, but after successful surgery, on the aortic or mitral valve annular dilatation, the Tricuspid regurgitation and right ventricular dysfunction may persist.To study the circumference of tricuspid orifice and it’s the diameter in two perpendicular planes and its comparison among the male and female population. The material for the present study comprised of 50 formalin fixed human hearts (35 males and 15 females) which were obtained from the department of anatomy. In this study, it is observed that: The mean value of circumference of a tricuspid orifice is 11.01+/-0.63 cm. The diameter of tricuspid orifice along the frontal dimension is 3.06+/-0.38 cm, and the diameter along the sagittal dimension is 2.26+/-0.23 cm. The measurements of the circumference of tricuspid orifice reported for males and females in western countries were higher than the present study and the diameter along the frontal dimension is greater than the diameter along the sagittal dimension. The tricuspid valve diameter along the frontal dimension was more than the diameter along the sagittal dimension in both males and females.

Seasonal habitat selection of an expanding sika deer Cervus nippon population in eastern Hokkaido, Japan

2003 ◽  
Vol 9 (1) ◽  
pp. 141-153 ◽  
Author(s):  
Mayumi Sakuragi ◽  
Hiromasa Igota ◽  
Hiroyuki Uno ◽  
Koichi Kaji ◽  
Masami Kaneko ◽  
...  
Keyword(s):  
Habitat Selection ◽  
Sika Deer ◽  
Cervus Nippon ◽  
Selection Of

Dietary Overlap But Spatial Gap between Sympatric Japanese Serow (Capricornis crispus) and Sika Deer (Cervus nippon) on Eastern Shikoku, Japan

Mammal Study ◽  
2019 ◽  
Vol 44 (4) ◽  
pp. 261
Author(s):  
Asuka Yamashiro ◽  
Yoshinori Kaneshiro ◽  
Yoichi Kawaguchi ◽  
Tadashi Yamashiro
Keyword(s):  
Sika Deer ◽  
Cervus Nippon ◽  
Dietary Overlap ◽  
Japanese Serow

Analysis of expressed sequence tags (ESTs) in sika deer (Cervus nippon hortulorum) velvet tip tissue

2011 ◽  
Vol 33 (4) ◽  
pp. 371-377 ◽  
Author(s):  
Li HAO ◽  
He-Ping LI ◽  
Li YAN
Keyword(s):  
Expressed Sequence Tags ◽  
Sika Deer ◽  
Cervus Nippon ◽  
Expressed Sequence

Ciliate (Ciliata, Ciliophora) fauna of different stomach departments of sika deer (Cervus nippon Temminck, 1838)

2016 ◽  
Author(s):  
Sergey F. Likhachyov ◽  
Tatyana A. Korchagina ◽  
Ivan V. Seryodkin ◽  
Daria A. Maksimova
Keyword(s):  
Sika Deer ◽  
Cervus Nippon

scholarly journals Environmental Flow Assessment Considering Inter- and Intra-Annual Streamflow Variability under the Context of Non-Stationarity

Water ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1737 ◽  
Author(s):  
Kang Ren ◽  
Shengzhi Huang ◽  
Qiang Huang ◽  
Hao Wang ◽  
Guoyong Leng
Keyword(s):  
Kendall Test ◽  
Environmental Flow ◽  
Mean Value ◽  
Test Method ◽  
Stationary Condition ◽  
Annual Streamflow ◽  
Riverine Ecosystems ◽  
Study Results ◽  
Wide Range ◽  
Streamflow Variability

A key challenge to environmental flow assessment in many rivers is to evaluate how much of the discharge flow should be retained in the river in order to maintain the integrity and valued features of riverine ecosystems. With the increasing impact of climate change and human activities on riverine ecosystems, the natural flow regime paradigm in many rivers has become non-stationary conditions, which is a new challenge to the assessment of environmental flow. This study presents a useful framework to (1) detect change points in runoff time series using two statistical methods (Mann-Kendall test method and heuristic segmentation method), (2) adjust data of the changed period against the original flow series into a stationary condition using a procedure of reconstruction; and (3) incorporate inter- and intra-annual streamflow variability with adjusted streamflow to evaluate environmental flow. The Jialing to Han inter-basin water transfer project was selected as the case study. Results indicate that a change point of 1994 was identified, revealing that the stationarity of annual streamflow series is invalid. The variations of reconstructed streamflow series are roughly consistent with original streamflow series, especially in the maximum/minimum values and rise/fall rates, but the mean value of reconstructed streamflow series is increased. The reconstructed streamflow series would further serve to eliminate the non-stationary of original streamflow, and incorporating the inter- and intra-annual variability would upgrade the ecosystem fitness. Selecting different criteria for the conservation of riverine ecosystems can have significantly different consequences, and we should not focus on the protection of specific objectives that will inevitably affect other aspects. This study provides a useful framework for environmental flow assessment and can be applied to a wide range of instream flow management approaches to protect the riverine ecosystem.

Parelaphostrongylus tenuis–Associated Meningoencephalitis in a Sika Deer (Cervus nippon)

2010 ◽  
Vol 46 (1) ◽  
pp. 287-290 ◽  
Author(s):  
Richard W. Gerhold ◽  
M. Kevin Keel ◽  
Kim Arnold ◽  
Doug Hotton ◽  
Robert B. Beckstead
Keyword(s):  
Sika Deer ◽  
Cervus Nippon ◽  
Parelaphostrongylus Tenuis

scholarly journals Detecting the Mechanism behind the Transition from Fixed Two-Dimensional Patterned Sika Deer (Cervus nippon) Dermal Papilla Cells to Three-Dimensional Pattern

2021 ◽  
Vol 22 (9) ◽  
pp. 4715
Author(s):  
Guanning Wei ◽  
Hongmei Sun ◽  
Haijun Wei ◽  
Tao Qin ◽  
Yifeng Yang ◽  
...  
Keyword(s):  
Culture Condition ◽  
Sika Deer ◽  
Three Dimensional ◽  
Cervus Nippon ◽  
Dermal Papilla ◽  
Growth Patterns ◽  
The Self ◽  
Dermal Papilla Cells ◽  
Aggregative Behavior ◽  
Cell Pattern

The hair follicle dermal papilla is critical for hair generation and de novo regeneration. When cultured in vitro, dermal papilla cells from different species demonstrate two distinguishable growth patterns under the conventional culture condition: a self-aggregative three dimensional spheroidal (3D) cell pattern and a two dimensional (2D) monolayer cell pattern, correlating with different hair inducing properties. Whether the loss of self-aggregative behavior relates to species-specific differences or the improper culture condition remains unclear. Can the fixed 2D patterned dermal papilla cells recover the self-aggregative behavior and 3D pattern also remains undetected. Here, we successfully constructed the two growth patterns using sika deer (Cervus nippon) dermal papilla cells and proved it was the culture condition that determined the dermal papilla growth pattern. The two growth patterns could transit mutually as the culture condition was exchanged. The fixed 2D patterned sika deer dermal papilla cells could recover the self-aggregative behavior and transit back to 3D pattern, accompanied by the restoration of hair inducing capability when the culture condition was changed. In addition, the global gene expressions during the transition from 2D pattern to 3D pattern were compared to detect the potential regulating genes and pathways involved in the recovery of 3D pattern and hair inducing capability.

Habitat use and the coexistence of the sika deer and the Japanese serow, sympatric ungulates from Mt. Asama, central Japan

Mammalia ◽  
2020 ◽  
Vol 84 (6) ◽  
pp. 503-511
Author(s):  
Hayato Takada ◽  
Riki Ohuchi ◽  
Haruko Watanabe ◽  
Risako Yano ◽  
Risako Miyaoka ◽  
...  
Keyword(s):  
Habitat Use ◽  
Sika Deer ◽  
Cervus Nippon ◽  
Niche Differentiation ◽  
Ecological Niches ◽  
Dwarf Bamboo ◽  
Central Japan ◽  
Habitat Mosaic ◽  
The Japanese Archipelago ◽  
Japanese Serow

AbstractDifferential resource use allows for diverse species to specialize in ecological niches and thus coexist in a particular area. In the Japanese archipelago, increasing sika deer (Cervus nippon, Temminck 1836) densities have excluded the Japanese serow (Capricornis crispus, Temminck 1836), but in places where deer population densities are low, the two species coexist. We wanted to better understand their habitats and how these two ungulates manage to coexist. We evaluated the role of habitat use in the coexistence of these two sympatric ungulates on Mt. Asama, central Japan. Deer frequently used the dwarf bamboo-rich communities in autumn and winter, and their habitat use was not associated with topography. Serows frequently used deciduous broadleaf shrub-rich communities and steep slopes throughout the year. Consequently, their habitat use was significantly different in terms of vegetation and topography. Niche breadth suggests that deer tend to be generalists, whereas serows tend to be specialists. Niche differentiation in habitat use between deer and serows may make the coexistence of these similarly sized ungulates possible in Japanese mountainous zones. Therefore, the fine-grained habitat mosaic of different vegetation and topography areas might be the underlying feature that allows the coexistence of these two species.

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