How Low Quality Foods Sustain High Density Sika Deer (Cervus nippon) Population in Heavily Grazed Habitat?: Comparison of Intake, Digestibility and Feeding Activities between the Deer Fed High and Low Quality Food

Mammal Study ◽  
2011 ◽  
Vol 36 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Maria Oikawa ◽  
Yuzo Kurokawa ◽  
Kengou Furubayashi ◽  
Akiko Takii ◽  
Yutaka Yoshida ◽  
...  
Keyword(s):  
Sika Deer ◽  
Cervus Nippon ◽  
High Density ◽  
Quality Food ◽  
Feeding Activities

Robustness of adult female survival maintains a high-density sika deer (Cervus nippon) population following the initial irruption

2018 ◽  
Vol 45 (2) ◽  
pp. 143 ◽  
Author(s):  
M. Ueno ◽  
H. Iijima ◽  
K. Takeshita ◽  
H. Takahashi ◽  
T. Yoshida ◽  
...  
Keyword(s):  
Sika Deer ◽  
Survival Rates ◽  
Cervus Nippon ◽  
High Density ◽  
Food Sources ◽  
Adult Survival ◽  
Density Level ◽  
Annual Survival ◽  
Deer Population ◽  
Winter Severity

Context Irruption of large herbivore populations is characterised by three distinct phases: (1) an exponential increase in population to a peak abundance; (2) a population crash; and (3) a second increase to another population peak, typically lower than the first peak of abundance. However, there has been little study of age- and sex-specific factors that affect the post-initial irruption interactions with food sources. Aims We aimed to investigate annual survival rates of sika deer (Cervus nippon Temminck, 1838) in the sequent irruption of a population on Nakanoshima Island, Lake Toya, Japan, with a chronically high density during the period 2002–12. Methods Survival monitoring data were obtained for 219 individuals (93 males and 126 females) using radio-collars. Annual survival was quantified, and related factors, i.e. deer abundance and winter severity, were determined by model selection using Akaike information criterion values. Key Results The results showed that annual survival rates across sexes and age classes (fawn, yearling, prime-aged, old) decreased with increasing population density, snow depth and winter precipitation. Winter severity had a greater effect on adult survival than density regulation. Nevertheless, female adult survival was maintained at a high level, with a mean of 0.84 (95% CI: 0.80–0.88). Key conclusions Robust survival rates for adult females might contribute to the maintenance of a high-density sika deer population in the post-initial irruption. Implications We suggest that in the absence of predation and hunting, sika deer population is not able to self-regulate to the density level that avoids an irreversible impact on plants.

Influence of the density of a sika deer population on activity, habitat use, and group size

2000 ◽  
Vol 78 (8) ◽  
pp. 1369-1374 ◽  
Author(s):  
Jakub Borkowski
Keyword(s):  
Population Density ◽  
Habitat Use ◽  
Group Size ◽  
Sika Deer ◽  
Important Determinant ◽  
Cervus Nippon ◽  
High Density ◽  
Habitat Types ◽  
Related Group ◽  
Positive Effect

The influence of population density of sika deer (Cervus nippon) on their activity, habitat use, and habitat-related group size was studied in the area of Japan's Tanzawa Mountains in early winter. The percentage of active sika deer was higher in January 1994 (a low-density period) than in January 1995 (a high-density period). The pattern of habitat use differed between periods. During the high-density period, deer increased their relative use of lower quality habitats. A possible mechanism and implications of this are discussed. Changes in population density had a positive effect on group size in sika deer, though the variation among habitat types supported the hypothesis that food biomass is an important determinant of group size.

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

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

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.

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