Patch use in the arctic ground squirrel: effects of micro-topography and shrub encroachment in the Arctic Circle
Sign Up to like & getrecommendations! Published in 2019 at "Oecologia"
DOI: 10.1007/s00442-019-04400-5
Abstract: We investigated the roles of vegetation structure, micro-topographic relief, and predator activity patterns (time of day) on the perception of predatory risk of arctic ground squirrels (Urocitellus parryii), an abundant pan-Arctic omnivore, in Arctic Circle… read more here.
Keywords: topography; vegetation; foraging intensity; arctic ground ... See more keywords
Stable isotope analysis of CO2 in breath indicates metabolic fuel shifts in torpid arctic ground squirrels.
Sign Up to like & getrecommendations! Published in 2017 at "Comparative biochemistry and physiology. Part A, Molecular & integrative physiology"
DOI: 10.1016/j.cbpa.2017.04.004
Abstract: Stable carbon isotope ratios (δ13C) in breath show promise as an indicator of immediate metabolic fuel utilization in animals because tissue lipids have a lower δ13C value than carbohydrates and proteins. Metabolic fuel consumption is… read more here.
Keywords: breath; ground squirrels; metabolic fuel; fuel ... See more keywords
Permafrost Politics: Toward a Relational Materiality and Design of Arctic Ground
Sign Up to like & getrecommendations! Published in 2020 at "Landscape Research"
DOI: 10.1080/01426397.2020.1831461
Abstract: ABSTRACT Permafrost—continuously frozen ground for more than two years—is one of the defining landscape elements in the Arctic. In the U.S., its development as an idea has parallelled mid-twentieth-century territorial struggles in Alaska and is… read more here.
Keywords: permafrost politics; ground; permafrost; arctic ground ... See more keywords
Effects of spring warming on seasonal neuroendocrinology and activation of the reproductive axis in hibernating arctic ground squirrels.
Sign Up to like & getrecommendations! Published in 2022 at "Integrative and comparative biology"
DOI: 10.1093/icb/icac112
Abstract: Many animals adjust the timing of seasonal events, such as reproduction, molt, migration, and hibernation, in response to interannual variation and directional climate-driven changes in temperature. However, the mechanisms by which temperature influences seasonal timing… read more here.
Keywords: arctic ground; warming seasonal; temperature; reproductive axis ... See more keywords
Characterization and Seasonal Modulation of Adenosine A1 Receptors in the Arctic Ground Squirrel Brain
Sign Up to like & getrecommendations! Published in 2023 at "International Journal of Molecular Sciences"
DOI: 10.3390/ijms24021598
Abstract: Hibernation is an adaptation that allows animals such as the Arctic ground squirrel (AGS) to survive the absence of food or water during the winter season. Understanding mechanisms of metabolic suppression during hibernation torpor promises… read more here.
Keywords: arctic ground; adenosine; brain; ground squirrel ... See more keywords