Open habitats promote female group formation in a solitary ungulate: the Japanese serow

Takada, Hayato; Minami, Masato

doi:10.1007/s00265-021-02999-1

Cited by 13 publications

(12 citation statements)

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“…grasses) favour the onset of large social groups (Jarman 1974). This process has been observed in Pyrenean chamois Rupicapra pyrenaica pyrenaica (Herrero et al 2002) and, more recently, in the Japanese serow, where open habitats promote spatial group formation (Takada & Minami 2021). In turn, the patchy distribution of serow females should favour the monopolisation of mating opportunities and the transition between monogamy and polygyny (Kishimoto 2003, Takada et al 2023).…”

Section: Discussionmentioning

confidence: 74%

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Mountain ungulate mating systems: patterns and processes

Corlatti

Lovari

2023

Mammal Review

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1. Mountain ungulates of the subfamily Caprinae, including wild sheep, goats and goat-antelopes, show remarkable interspecific diversity in habitat preferences, social organisation and morphological features. We review how this diversity relates to their mating behaviour. 2. After introducing the ecology of mating systems and the evolution of the Caprinae, we investigate the pairwise, sequential relationships between habitat preferences, social behaviour, level of polygyny, and morphological features, and discuss the ecological processes underlying the patterns of mate monopolisation and acquisition. 3. From forest-dwelling, solitary, monogamous and monomorphic goat-antelopes, to highly dimorphic, polygynous and social wild sheep and goats inhabiting open landscapes, mountain ungulates reveal a close relationship between habitat openness and sexual dimorphism, through the level of sociality and that of mate monopolisation. 4. Although over the last few decades some information has been collected on the biology of Caprinae, our understanding of determinants of their mating systems is still hampered by limited data to estimate opportunities for sexual selection, as well as uncertainties over the occurrence and maintenance of alternative reproductive tactics, and lack of information on female mate choice. 5. The study of mating systems and that of the factors influencing them play a key role from an evolutionary and conservation standpoint. This is relevant to the Caprinae, whose main habitat is expected to be strongly affected by the ongoing climatic change, with potential effects on the phenology of their mating systems, and whose economic value is relevant for consumptive and nonconsumptive uses. A better understanding of the diversity and ecology of mating systems will require a wealth of additional field observations on male and female behaviour, as well as genetic assessments of reproductive success.

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Section: Discussionmentioning

confidence: 74%

Section: The Ecology Of Mate Monopolisationmentioning

confidence: 79%

Mountain ungulate mating systems: patterns and processes

Corlatti

Lovari

2023

Mammal Review

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“…Although deer and serows were observed in both areas in other surveys using ground observation including biological footprints and camera traps (Shin‐etsu Nature Conservation Office, Ministry of the Environment, 2022; Takada et al, 2021), the different observed locations of the deer and serows would reflect the behavioral and ecological differences between the two species. Japanese serows are solitary and territorial (Kishimoto & Kawamich, 1996; Takada & Minami, 2019, 2021) and select steeper slopes than sika deer (Seki & Hayama, 2021; Takada et al, 2020), whereas deer form large groups, and their high densities affect the vegetation in their habitat (Takatsuki, 2009).…”

Section: Discussionmentioning

confidence: 99%

Scanning sympatric sika deer and Japanese serows using drones: A methodological trial in Mt. Asama, Central Japan

Ito

Fukue²,

Minami

2023

Grassland Science

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The negative impacts of sika deer (Cervus nippon) on Japanese serows (Capricornis crispus) are a subject of concern in the mountainous regions of Japan. To develop a methodology to collect information with regard to the abundance and habitat selection of sympatric large mammals using drones (unmanned aerial vehicles; UAVs) equipped with thermal infrared and red‐green‐blue (RGB) sensors, surveys were conducted at night and in the early morning in a high mountainous habitat. Despite the similar size and shape in thermal infrared images for sika deer and Japanese serows, species identification based on body color using RGB images was possible during the period from dawn to early morning. The UAV surveys also revealed the large abundance of deer (>40 deer/km2) and suggested different habitat selection between deer and serows in the alpine grassland. Our results were the first snapshots of sympathetic deer and serow distribution. UAV surveys using both thermal infrared and RGB sensors in early morning could be useful for research and monitoring of large mammals in open areas, such as grasslands, marshlands, high mountains, farmlands and drylands.

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“…Social interactions can be influenced by environmental factors such as food abundance and potential predation risk (Beauchamp, 2004;Schaerf et al, 2017), but also by many aspects of the abiotic environment, including light levels (Ginnaw et al, 2020), temperature (Bartolini et al, 2015), hypoxia (Domenici et al, 2017), turbidity (Chamberlain and Ioannou, 2019), and habitat structure (Takada and Minami, 2021), as well as by anthropogenic changes such as acoustic noise (Currie et al, 2020), and pollutants (Armstrong et al, 2011). While environmental factors can impact behavior through the masking of cues and signals (McNett et al, 2010) and shifting attention to other tasks (Chan et al, 2010), environmental conditions can also affect behavior via physiological changes.…”

Section: Introductionmentioning

confidence: 99%

The Potential for Physiological Performance Curves to Shape Environmental Effects on Social Behavior

et al. 2021

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As individual animals are exposed to varying environmental conditions, phenotypic plasticity will occur in a vast array of physiological traits. For example, shifts in factors such as temperature and oxygen availability can affect the energy demand, cardiovascular system, and neuromuscular function of animals that in turn impact individual behavior. Here, we argue that nonlinear changes in the physiological traits and performance of animals across environmental gradients—known as physiological performance curves—may have wide-ranging effects on the behavior of individual social group members and the functioning of animal social groups as a whole. Previous work has demonstrated how variation between individuals can have profound implications for socially living animals, as well as how environmental conditions affect social behavior. However, the importance of variation between individuals in how they respond to changing environmental conditions has so far been largely overlooked in the context of animal social behavior. First, we consider the broad effects that individual variation in performance curves may have on the behavior of socially living animals, including: (1) changes in the rank order of performance capacity among group mates across environments; (2) environment-dependent changes in the amount of among- and within-individual variation, and (3) differences among group members in terms of the environmental optima, the critical environmental limits, and the peak capacity and breadth of performance. We then consider the ecological implications of these effects for a range of socially mediated phenomena, including within-group conflict, within- and among group assortment, collective movement, social foraging, predator-prey interactions and disease and parasite transfer. We end by outlining the type of empirical work required to test the implications for physiological performance curves in social behavior.

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Open habitats promote female group formation in a solitary ungulate: the Japanese serow

Cited by 13 publications

References 61 publications

Mountain ungulate mating systems: patterns and processes

Mountain ungulate mating systems: patterns and processes

Scanning sympatric sika deer and Japanese serows using drones: A methodological trial in Mt. Asama, Central Japan

The Potential for Physiological Performance Curves to Shape Environmental Effects on Social Behavior

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