Weather determines daily activity pattern of an endemic chipmunk with predictions for climate change

Schweiger, Brittany R.; Frey, Jennifer K.

doi:10.1016/j.ecochg.2021.100027

Cited by 7 publications

(2 citation statements)

References 44 publications

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“…Responding daily temperature fluctuations, the deer can adjust their daily routine. Such thermoperiodic effects on deer activity vary across seasons and habitats (Schweiger and Frey 2021). As for seasonal variations, cold winter nights potentially restrain deer's nocturnal activity, and conversely, hot summer day potentially reduce their diurnal activity (Berger et al 2002, Ikeda et al 2015, Ikeda et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Adaptive response of Siberian roe deer Capreolus pygargus to climate and altitude in the temperate forests of South Korea

Eom,

Lee,

Lee

et al. 2023

Wildlife Biology

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Understanding climatic effect on wildlife is essential to prediction and management of climate change's impact on the ecosystem. The climatic effect can interact with other environmental factors. This study was aimed to determine effects of climate and altitude on Siberian roe deer Capreolus pygargus activity in temperate forests of South Korea. We conducted camera trapping to investigate roe deer's activity level from spring to fall. Logistic regressions were used to determine effects of diel period, temperature, rain, and altitude on the activity level. A negative relationship was noted between temperature and the activity level due to thermoregulatory costs. Roe deer activity exhibited nocturnal and crepuscular patterns during summer and the other seasons, respectively, possibly due to heat stress in summer. In addition, the effect of temperature differed between high‐ and low‐altitude areas. In low‐altitude areas, temperature affected negatively the activity level throughout the study period. Conversely, in high‐altitude areas, temperature affected activity level only in summer and early fall. Lower temperatures in higher altitudes favoured roe deer activity, resulting in roe deer's preference towards higher altitude areas. However, roe deer's movement toward lower altitudes was observed in summer. Reduced heat stress by changing activity pattern allowed them to access lower altitude areas with greater resource availability during summer. This study revealed how roe deer activity varied across seasons and altitudes, considering the interactions among weather, microclimate and resource availability. It provides insight into how montane species adapt to various climatic conditions, and this could have important implications for wildlife management and conservation efforts.

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Section: Introductionmentioning

confidence: 99%

Adaptive response of Siberian roe deer Capreolus pygargus to climate and altitude in the temperate forests of South Korea

Eom,

Lee,

Lee

et al. 2023

Wildlife Biology

View full text Add to dashboard Cite

show abstract

“…foraging behavior) and metabolism (e.g. thermoregulation) (Levy et al, 2019;Schweiger and Frey, 2021).…”

Section: Introductionmentioning

confidence: 99%

Weathering the storm: Decreased activity and glucocorticoid levels in response to inclement weather in breeding Columbian ground squirrels

Tamian,

Edwards,

Neuhaus

et al. 2023

Hormones and Behavior

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Seasonal variation in the ultrasonic vocal activity of Humboldt's flying squirrel (Glaucomys oregonensis)

Farwell,

Clucas

2024

Ecology and Evolution

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Most mammals rely on vocal communication to increase survival and reproductive success. While the functions of audible vocalizations have been well‐studied across mammal species, ultrasonic vocalizations in small mammals outside of bats are less understood. North American flying squirrel species (Glaucomys spp.), including the newly described Humboldt's flying squirrel (Glaucomys oregonensis), produce numerous call‐types that extend into the ultrasonic range. To investigate the potential function of ultrasonic call‐types in the Humboldt's flying squirrels, we used ultrasonic recorders to record squirrels in the wild across multiple seasons to determine if there are temporal and seasonal patterns in nightly vocal activity and rates of different call‐types. We recorded Humboldt's flying squirrels in two geographic locations ‐ Humboldt and San Bernardino counties—in California from 2018 to 2022 in the summer and winter across multiple study areas. We found that although seasonal weather conditions differ between locations, flying squirrels in Humboldt and San Bernardino had similar vocal activity patterns across nightly active periods between locations and between summer and winter. Nightly activity patterns of when the three main chirp‐like call‐types (arc chirps, tonal chirps, upsweeps) were given varied between seasons in both geographic locations, and these call‐types were given at greater rates in the summer in San Bernardino, but rates did not vary by season in Humboldt. Trills, the most structurally complex of the four main call‐types, were produced more in the summer than in winter, and also differed in their nightly activity patterns, in both geographic locations. Flying squirrels may use certain call‐types earlier or later in the nightly active period due to their potentially varying functions, and may produce more trills in the summer coinciding with the breeding season. Further understanding of the function of different call‐types can provide insight into social, foraging, and antipredator behavior of this nocturnal and elusive species.

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Weather determines daily activity pattern of an endemic chipmunk with predictions for climate change

Cited by 7 publications

References 44 publications

Adaptive response of Siberian roe deer Capreolus pygargus to climate and altitude in the temperate forests of South Korea

Adaptive response of Siberian roe deer Capreolus pygargus to climate and altitude in the temperate forests of South Korea

Weathering the storm: Decreased activity and glucocorticoid levels in response to inclement weather in breeding Columbian ground squirrels

Seasonal variation in the ultrasonic vocal activity of Humboldt's flying squirrel (Glaucomys oregonensis)

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