...Sean D. Powers; Kristine L. Grayson; Eloy Martinez; Salvatore J. Agosta ABSTRACT Predictive models of ectotherm responses to environmental change often rely on thermal performance data from the literature. For insects, the majority of these data focus on two traits, development rate and thermal...

...Allison R. Litmer; Steven J. Beaupre ABSTRACT In nature, many organisms experience a daily range of body temperatures. Thermal performance at stable temperatures is often extrapolated to predict function in cyclical environments. However, temperature order and cyclicity may influence physiological...

... is not the primary driver shaping thermal tolerance in this species. Collectively, these findings suggest that the OCLTT hypothesis does not explain moderate to long-term thermal performance in N . cinerea , which raises further questions about the generality of the hypothesis. * Author for correspondence...

.... Importantly, the superior thermal performance of flies raised at 25°C is apparent even after taking two traits positively associated with reproductive output into account: body size and ovariole number. Thus, in D. melanogaster , development at a given temperature does not necessarily provide any advantage...

... empirical support. In this study, we tested the full suite of hypotheses by investigating acclimation responses of locomotor performance for nine populations of five species of sub-Antarctic weevils, using static and fluctuating temperatures. Species showed typical locomotion thermal performance curves...

... reactions, this response is controlled by the nervous system and not by a direct thermal influence on metabolism. Fruit fly Thermal performance Enzyme kinetics Locomotor activity Thermosensory receptors Organisms are constantly exposed to environmental challenges over which they have...

... to 15°C. These adjustments could represent an energetic cost-saving mechanism at temperature extremes. Acclimation responses were similar in both heart and brain; however, this effect was smaller in the heart, which might indicate its importance in maintaining whole-animal thermal performance...

... regulates humidity of the hive towards a microclimatic optimum. Austroplebeia essingtoni Hymenoptera Thermal performance Acclimatisation Metabolic rate Evaporative water loss Hive regulation Physiological traits provide insight into the constraints of the environment on the organism...