Ghosts of predators past remain in the spatial distribution and population density of the Japanese serow DOI Creative Commons
Hayato Takada,

Akane Washida,

Shuhei Yamasaki

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

Abstract Some ungulate species select areas with abundant escape terrain despite the absence of predators, indicating that ghosts predators past continue to affect their spatial behavior. Population densities such ungulates may also be influenced by terrain; however, this has not been fully investigated. We examined distribution and population density Japanese serow (Capricornis crispus) at Mt. Fuji in relation abundance quality forage, vegetation, (steep slopes), other factors. Only affected was biased towards steeper slopes, suggesting past, i.e., wolves (Canis lupus) serow-hunting humans, still influence distribution. The serows higher coniferous forests than broad-leaved forests, dwarf bamboos where high fecal nitrogen content detected, forage availability bamboo trees as well density. Moreover, terrain, low because fewer individuals settle environments minimal terrain.

Language: Английский

Diet Selection of a Solitary Forest-Dwelling Ungulate, the Japanese Serow (Capricornis crispus), in Cool Temperate Forest DOI
Hayato Takada, Keita Nakamura, Masato Minami

et al.

Mammal Study, Journal Year: 2024, Volume and Issue: 49(2)

Published: Feb. 14, 2024

Language: Английский

Citations

4
Latrine ecology of a solitary ungulate, the Japanese serow: female–male communication site rather than territorial marking? DOI
Hayato Takada,

Haruko Watanabe,

Risako Yano

et al.

Mammalia, Journal Year: 2025, Volume and Issue: unknown

Published: April 5, 2025

Abstract The functions of latrines have been well studied in gregarious or pair-living territorial ungulates, however, there are no field-based studies on latrine behaviour solitary ungulates with monogamous pair territories. We investigated the Japanese serow ( Capricornis crispus ), a and species. spatial patterns did not coincide serows’ home range boundaries, individuals same sex defecate at (i.e., was countermarking), which suggests that may function as marking. During late-mating season, when males females tend to live separately, number visits by increased probability defecating significantly higher, suggesting signallers, informing their oestrus status males. Moreover, also frequently visited latrines, sniffing overmarking were observed only during receive information about from females’ faeces. Obtaining female directly is difficult for species sexes separately. Although future would be required confirm this hypothesis, our study evolved female-to-male communication sites serow.

Language: Английский

Citations

0
Competition between native ungulates: negative effects of sika deer (Cervus nippon) on foraging behavior, physiological stress, and population characteristics of Japanese serow (Capricornis crispus) DOI
Hayato Takada,

Nobuhiro Tezuka,

Ryosuke Yano

et al.

Journal of Zoology, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Abstract In coevolved native ungulate assemblages, the mechanisms underlying competition remain unclear because, to date, little direct evidence of exists. high‐elevation areas in Japan, number Japanese serows ( Capricornis crispus ) has been decreasing as sika deer Cervus nippon increases. Here, we assessed effects on vegetation, vigilance and foraging behavior, physiological stress, relative abundance ratio young individuals throughout warm season across two study sites with different densities similar landscapes Mount Asama, Central Japan. The diversity palatable forage for (i.e., herbaceous forbs) were significantly lower abundant deer, suggesting that reduced vegetation quality serows. Serow rate was greater increased probability encountering or intraspecific aggression vigilance. bite their step availability forbs higher serow efficiency. Levels fecal cortisol metabolites decreased efficiency stress populations negatively affected population through both exploitative interference competition. This is a rare case show interspecific assemblages. Human alteration ecosystem processes, such elimination top predators human hunting pressure may determine changes ecological relationships between deer.

Language: Английский

Citations

0
Dietary partitioning and competition between sika deer and Japanese serows in high elevation habitats DOI

Mitsuko Hiruma,

Hayato Takada,

Akane Washida

et al.

Mammal Research, Journal Year: 2023, Volume and Issue: 68(3), P. 305 - 315

Published: March 29, 2023

Language: Английский

Citations

6
Mountain ungulate mating systems: patterns and processes DOI Creative Commons
Luca Corlatti, Sandro Lovari

Mammal Review, Journal Year: 2023, Volume and Issue: 53(3), P. 206 - 222

Published: May 30, 2023

ABSTRACT Mountain ungulates of the subfamily Caprinae, including wild sheep, goats and goat‐antelopes, show remarkable interspecific diversity in habitat preferences, social organisation morphological features. We review how this relates to their mating behaviour. After introducing ecology systems evolution we investigate pairwise, sequential relationships between behaviour, level polygyny, features, discuss ecological processes underlying patterns mate monopolisation acquisition. From forest‐dwelling, solitary, monogamous monomorphic highly dimorphic, polygynous sheep inhabiting open landscapes, mountain reveal a close relationship openness sexual dimorphism, through sociality that monopolisation. Although over last few decades some information has been collected on biology our understanding determinants is still hampered by limited data estimate opportunities for selection, as well uncertainties occurrence maintenance alternative reproductive tactics, lack female choice. The study factors influencing them play key role from an evolutionary conservation standpoint. This relevant whose main expected be strongly affected ongoing climatic change, with potential effects phenology systems, economic value consumptive nonconsumptive uses. A better will require wealth additional field observations male genetic assessments success.

Language: Английский

Citations

6
Genetic Analysis Reveals Dispersal Patterns of Japanese Serow in Two Different Habitats of a Mountainous Region DOI Open Access

Maiko Hori,

Hayato Takada,

Y Nakane

et al.

ZOOLOGICAL SCIENCE, Journal Year: 2024, Volume and Issue: 41(2)

Published: Feb. 12, 2024

Dispersal increases the costs of feeding and predation risk in new environment is reported to be biased toward habitats similar natal region some mammals. The benefits dispersal often differ between sexes, most mammals show male-biased relation a polygamous mating system. Japanese serow generally solitary monogamous species. However, recent studies have shown that sociality serows on Mt. Asama differs habitat types. In mountain forests with low forage availability, habits social monogamy were observed, while, alpine grasslands, female grouping polygyny which probably due abundant availability. We investigated effects characteristics using fecal tissue samples from two different Asama.

Language: Английский

Citations

1
Tree-Climbing Behavior of a Forest-Dwelling Ungulate: The Formosan Serow DOI Creative Commons
Hayato Takada, Nick Ching‐Min Sun,

Yu-Jen Liang

et al.

Animals, Journal Year: 2024, Volume and Issue: 14(15), P. 2159 - 2159

Published: July 24, 2024

Ungulates are terrestrial herbivores, basically adapted to running fast on the ground; tree-climbing behavior has been reported only in seven species, and five of them live open habitats (Capra hircus, C. aegagrus, falconeri, cylindricornis, Oreotragus oreotragus). Tree-climbing may also be evolved ungulates inhabiting dense forests with abundant trees; however, this rarely such species (Moschus leucogaster, M. moschiferus), probably due difficulty observing wild. The numerous publicly available records social networks hold potentially valuable information atypical behaviors wild ungulates. Here, we explored a forest-dwelling ungulate, Formosan serow Taiwan, subtropical island, by extracting from online media platforms. We researched images videos serows through Facebook YouTube collected total 15 events. In these materials, climbed 10 tree including evergreen coniferous broad-leaved trees, variety parts, ranging height 0.6 4 m, branches shrubs trunks tall trees. was recorded throughout Taiwan lowlands subalpine zones, suggesting that climbing common species. Foraging while trees frequently observed (53.3%), purpose or benefit for is obtain additional food other than plants growing near ground surface. contrast ungulates, not winter, but seasons, when relatively abundant. This first scientific report typically forest dweller.

Language: Английский

Citations

0
Ecological drivers of sexual size dimorphism in northern chamois DOI Creative Commons
Rudolf Reiner, Luca Corlatti

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(10)

Published: Oct. 1, 2024

Male-biased sexual size dimorphism (SSD) is common in ungulates. The dominant scenario for the evolution of ungulate SSD suggests that habitat openness leads to greater by increasing group and thus selection through male-male competition mates. At a more proximate level, adaptive changes may result from plastic response individuals environmental variation. In this study, we used 161,948 body mass data seasonally size-dimorphic species, northern chamois

Language: Английский

Citations

0
Ghosts of predators past remain in the spatial distribution and population density of the Japanese serow DOI Creative Commons
Hayato Takada,

Akane Washida,

Shuhei Yamasaki

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

Abstract Some ungulate species select areas with abundant escape terrain despite the absence of predators, indicating that ghosts predators past continue to affect their spatial behavior. Population densities such ungulates may also be influenced by terrain; however, this has not been fully investigated. We examined distribution and population density Japanese serow (Capricornis crispus) at Mt. Fuji in relation abundance quality forage, vegetation, (steep slopes), other factors. Only affected was biased towards steeper slopes, suggesting past, i.e., wolves (Canis lupus) serow-hunting humans, still influence distribution. The serows higher coniferous forests than broad-leaved forests, dwarf bamboos where high fecal nitrogen content detected, forage availability bamboo trees as well density. Moreover, terrain, low because fewer individuals settle environments minimal terrain.

Language: Английский

Citations

0