... Energetics Metabolism Mirounga leonina Agence Nationale de la Recherche http://dx.doi.org/10.13039/501100001665 Institut Polaire Français Paul Emile Victor http://dx.doi.org/10.13039/501100004796 In living organisms, maintaining energy balance is key to survival...

... swimming speed ( U crit ) of male offspring was greatest when both parents were raised at 28°C, and warmer fathers produced daughters with greater U crit . Similarly, warmer fathers produced sons and daughters with greater metabolic capacity. We show that the thermal variation experienced by parents can...

... biology hypothesis, variation in prenatal exposure to hormones is likely to influence telomere length. Yet, the contribution of key metabolic hormones, i.e. thyroid hormones (THs), has been largely ignored. We recently showed that in contrast to predictions, exposure to elevated prenatal THs increased...

... speed. Metabolic and thermoregulatory measurements at rest showed that T b , evaporative water loss and breathing frequency increased at T a of 36°C and above. Therefore, the upper threshold temperatures at which endurance capacity is impaired are similar to those inducing heat responses at rest...

... Metabolism Natural Sciences and Engineering Research Council of Canada http://dx.doi.org/10.13039/501100000038 RGPIN-2018-05707 Canada Research Chairs http://dx.doi.org/10.13039/501100001804 As global temperatures continue to rise as a consequence of the effects of climate...

... the differing capacities of lizards to depress body temperature ( T b ) through evaporative cooling via panting. Here, we link panting and T b depression with rates of evaporative water loss and its metabolic costs under high heat loads. We used flow-through respirometry to measure evaporative water loss rates...

... status. Carbon dioxide Insects Reproduction Metabolism Anesthesia US-Israel Binational Agricultural Research and Development Fund US-5182-19 * Author for correspondence ( eua6@psu.edu ) Competing interests The authors declare no competing or financial interests...

... and activity on the metabolic rate of adult Drosophila melanogaster . Comp. Biochem. Physiol. A Physiol. 118 , 1301 - 1307 . 10.1016/S0300-9629(97)00030-3 Bradford , M. M. ( 1976 ). A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing...

..., acclimatory and evolutionary. Acutely, passive temperature effects often dictate an expected 2-fold increase in metabolic processes for every 10°C change in temperature ( Q 10 ). Yet, these acute responses often are mitigated through acclimation within an individual or evolutionary adaptation within...

... monitored for 12 months North American colonies of honeybees enduring important temperature variations throughout the year, to assess the metabolism and immune system of summer and winter honeybee individuals. Our results show that in flight muscle, mitochondrial respiration via complex I during winter...

... lower stroke frequencies for diving than for flying (in line with allometric predictions for auks), dive costs were estimated to surpass flight costs in our sample of birds (flying: 7.24× basal metabolic rate, BMR; diving: 9.37× BMR). As expected, ODBA was not an effective predictor of DEE...

... its sensitivity, versatility, ease of construction and the quality of data generated, the design presented here is a significant improvement upon previous designs and has the potential for broad application in the study of metabolism. We thank the Universities at Shady Grove for the use...

...Eric Ste-Marie; Yuuki Y. Watanabe; Jayson M. Semmens; Marianne Marcoux; Nigel E. Hussey ABSTRACT Field metabolic rate (FMR) is a holistic measure of metabolism representing the routine energy utilization of a species living within a specific ecological context, thus providing insight into its...

...Linnea E. Pearson; Emma L. Weitzner; Lars Tomanek; Heather E. M. Liwanag ABSTRACT Allocation of energy to thermoregulation greatly contributes to the metabolic cost of endothermy, especially in extreme ambient conditions. Weddell seal ( Leptonychotes weddellii ) pups born in Antarctica must survive...

... and maintenance, are contingent on the plasticity of metabolic processes (‘metabolic plasticity’). It is likely that the Last Universal Common Ancestor (LUCA), 4 billion years ago, already possessed energy-sensing molecules that could adjust energy (ATP) production to meet demand. The earliest manifestation...

... cricetid rodents ( Neotoma albigula , Neotoma lepida , Peromyscus eremicus , Peromyscus crinitus ) exposed to high T a , at four sites in the Mojave Desert. We measured metabolism, evaporative water loss and T b using flow-through respirometry. When exposed to T a ≥ T b , rodents showed steep increases...

... differences in food abundance. When coupled to appetite (urge to eat), this is expressed as the eating schedule of a species. Food availability times affect daily and seasonal physiology and behaviour of organisms both directly (by affecting metabolic homeostasis) and indirectly (by altering synchronization...

...Anusha Shankar; Isabelle N. H. Cisneros; Sarah Thompson; Catherine H. Graham; Donald R. Powers ABSTRACT 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...

...Linda Adzigbli; Eugene P. Sokolov; Siriluck Ponsuksili; Inna M. Sokolova ABSTRACT Hypoxia is a major stressor for aquatic organisms, yet intertidal organisms such as the oyster Crassostrea gigas are adapted to frequent oxygen fluctuations by metabolically adjusting to shifts in oxygen and substrate...

... that, like many other semi-aquatic and fossorial small mammals, star-nosed moles would exhibit: (i) a blunted (i.e. delayed or reduced) hypoxic ventilatory response, (ii) a reduced metabolic rate and (iii) a lowered body temperature ( T b ) in hypoxia. We thus non-invasively measured these variables from...