Anusha Shankar
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View article: The challenges, opportunities and future of comparative physiology in the Global South: perspectives of early-career researchers
The challenges, opportunities and future of comparative physiology in the Global South: perspectives of early-career researchers Open
Researchers in the Global South (GS, developing countries) make valuable contributions to the field of comparative physiology, but face economic and scientific disparities and several unique challenges compared with colleagues in the Globa…
View article: What Can Tree Swallows Teach Us About Biology?
What Can Tree Swallows Teach Us About Biology? Open
Tree swallows are North American birds that can help us understand more about biology. We already know a lot about tree swallows because they are easy to work with. These birds are popular for scientists to study. We know a lot about bird …
View article: SAD rats: Effects of short photoperiod and carbohydrate consumption on sleep, liver steatosis, and the gut microbiome in diurnal grass rats
SAD rats: Effects of short photoperiod and carbohydrate consumption on sleep, liver steatosis, and the gut microbiome in diurnal grass rats Open
Seasonal affective disorder (SAD) is a recurrent depression triggered by exposure to short photoperiods, with a subset of patients reporting hypersomnia, increased appetite, and carbohydrate craving. Dysfunction of the microbiota – gut – b…
View article: Can Sex-Specific Metabolic Rates Provide Insight into Patterns of Metabolic Scaling?
Can Sex-Specific Metabolic Rates Provide Insight into Patterns of Metabolic Scaling? Open
Females and males can exhibit striking differences in body size, relative trait size, physiology, and behavior. As a consequence, the sexes can have very different rates of whole-body energy use, or converge on similar rates through differ…
View article: A heterothermic spectrum in hummingbirds
A heterothermic spectrum in hummingbirds Open
Many endotherms use torpor, saving energy by a controlled reduction of their body temperature and metabolic rate. Some species (e.g. arctic ground squirrels, hummingbirds) enter deep torpor, dropping their body temperature by 23–37°C, whil…
View article: Facultative variation across a shallow to deep torpor spectrum in hummingbirds
Facultative variation across a shallow to deep torpor spectrum in hummingbirds Open
Many small endotherms use torpor, saving energy by a controlled reduction of their body temperature and metabolic rate. Some species (e.g. arctic ground squirrels, hummingbirds) enter deep torpor, dropping their body temperatures by 23-37 …
View article: Awards, Scholarships, and Grants Awarded at the SICB Meeting in January 2021
Awards, Scholarships, and Grants Awarded at the SICB Meeting in January 2021 Open
View article: The darkness and the light: diurnal rodent models for seasonal affective disorder
The darkness and the light: diurnal rodent models for seasonal affective disorder Open
The development of animal models is a critical step for exploring the underlying pathophysiological mechanisms of major affective disorders and for evaluating potential therapeutic approaches. Although most neuropsychiatric research is per…
View article: Hummingbird torpor in context: duration, more than temperature, is the key to nighttime energy savings
Hummingbird torpor in context: duration, more than temperature, is the key to nighttime energy savings Open
Torpor is an important energy saving strategy in some small birds, but it has rarely been studied in natural field conditions. We compared torpor use across 43 wild‐caught individuals of eight hummingbird species across sites with differen…
View article: The allometry of daily energy expenditure in hummingbirds: An energy budget approach
The allometry of daily energy expenditure in hummingbirds: An energy budget approach Open
Within‐clade allometric relationships represent standard laws of scaling between energy and size, and their outliers provide new avenues for physiological and ecological research. According to the metabolic‐level boundaries hypothesis, met…
View article: nushiamme/Hummingbird_allometry: Hummingbird_allometry_JAE
nushiamme/Hummingbird_allometry: Hummingbird_allometry_JAE Open
Hummingbirds' daily energy expenditure scales with an unusually high slope with mass. The allometric slopes of their daily activities, unusual relative to other birds - from their ability for minimal energy expenditure in torpor, to their …
View article: Torpor duration, more than temperature, is key to hummingbird nighttime energy savings
Torpor duration, more than temperature, is key to hummingbird nighttime energy savings Open
Torpor is an important energy saving strategy in small endotherms, but it has been insufficiently studied in natural field conditions. Building on what we know from laboratory studies, we compared torpor use across hummingbird species and …
View article: Winter conditions influence biological responses of migrating hummingbirds
Winter conditions influence biological responses of migrating hummingbirds Open
Conserving biological diversity given ongoing environmental changes requires the knowledge of how organisms respond biologically to these changes; however, we rarely have this information. This data deficiency can be addressed with coordin…