...Cameron Bell; Rebecca S. Raynal; Daniel W. A. Noble; Lisa E. Schwanz; Daniel A. Warner; Jenna E. Pruett; Julia L. Riley ABSTRACT The embryonic environment is critical for the development of many ectothermic vertebrates, which makes them highly vulnerable to environmental change. Changes...

...: Sub-lethal temperatures can adversely impact an organism. A behavioural agitation response in brook trout may coincide with a shift in the transcriptome response in relation to acute temperature increases. Ectotherm Cellular response mRNA Brook trout Agitation temperature CT max...

... developmental hypoxia produces stress-tolerant phenotypes in some ectothermic vertebrates. Embryonic common snapping turtles ( Chelydra serpentina ) subjected to chronic hypoxia display improved cardiac anoxia tolerance after hatching, which is associated with altered Ca 2+ homeostasis in heart cells...

...Danilo Giacometti; Patrick D. Moldowan; Glenn J. Tattersall ABSTRACT To decide whether to remain underground or to emerge from overwintering, fossorial ectotherms simultaneously process environmental, gravitational and circannual migratory cues. Here, we provide an experimental framework to study...

... and function, and thus whole-animal performance and resilience to environmental change. Ectotherm Food Heart Nutrition Plasticity National Science Foundation http://dx.doi.org/10.13039/100000001 University of California http://dx.doi.org/10.13039/100005595...

.../ Summary: The respiratory system of American alligators is well equipped to effectively eliminate CO 2 during intense physical activity, maintaining stable arterial P CO 2  levels without any signs of limitations in pulmonary CO 2 diffusion. Cardiovascular Reptile Crocodilian Ectotherm...

... gaps, proposed physiological mechanisms behind this trait and potential future directions of study. Marine invertebrate Intertidal zone Ectotherm Freezing Cold stress Winter National Sciences and Engineering Research Council of Canada Many intertidal invertebrates living...

...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...

...Joshua K. Lonthair; Nicholas C. Wegner; Brian S. Cheng; Nann A. Fangue; Matthew J. O'Donnell; Amy M. Regish; John D. Swenson; Estefany Argueta; Stephen D. McCormick; Benjamin H. Letcher; Lisa M. Komoroske ABSTRACT Declining body size in fishes and other aquatic ectotherms associated...

...Theresa E. Mackey; Caleb T. Hasler; Travis Durhack; Jennifer D. Jeffrey; Camille J. Macnaughton; Kimberly Ta; Eva C. Enders; Ken M. Jeffries ABSTRACT Understanding the resilience of ectotherms to high temperatures is essential because of the influence of climate change on aquatic ecosystems...

... 2021 Highlighted Article: Maturation of the cardiac proteome may be a determining factor in the superior anoxia tolerance of adult relative to hatchling painted turtles. Temperature Heart Hatchling Development Ectotherm iTRAQ Protein expression Natural Sciences...

...Christian O. Chukwuka; Joanne M. Monks; Alison Cree ABSTRACT Understanding the interaction between upper voluntary thermal limit (VT max ) and water loss may aid in predicting responses of ectotherms to increasing temperatures within microhabitats. However, the temperature at which climate heating...

... was to investigate the stability of body temperature in large fish using data from field experiments. We measured the muscle temperatures of free-ranging whale sharks ( Rhincodon typus ), the largest extant fish globally, and investigated their ectothermic physiology and the stability of their body temperature...

...Meggan A. Alston; Jeeyun Lee; M. Elizabeth Moore; Joel G. Kingsolver; Christopher S. Willett ABSTRACT High temperatures can negatively impact the performance and survival of organisms, particularly ectotherms. While an organism's response to high temperature stress clearly depends on current...

...Nicholas M. Teets; J. D. Gantz; Yuta Kawarasaki ABSTRACT Rapid cold hardening (RCH) is a type of phenotypic plasticity that allows ectotherms to quickly enhance cold tolerance in response to brief chilling (lasting minutes to hours). In this Review, we summarize the current state of knowledge...

...Anne M. Treasure; Steven L. Chown ABSTRACT Ectotherms may respond to variable environmental conditions by altering their phenotypes. Phenotypic plasticity was initially thought to be beneficial to an organism's physiological fitness but several alternative hypotheses have been proposed with growing...

...Samantha S. Fontaine; Alexander J. Novarro; Kevin D. Kohl ABSTRACT Environmental temperature and gut microbial communities can both have profound impacts on the digestive performance of ectothermic vertebrates. Additionally, the diversity, composition and function of gut microbial communities...

... cooler localities do not. Corticosterone Performance Amphibian Ectotherm Plethodontid Climate Water-borne hormones Ectothermic organisms may be disproportionately vulnerable to temperature extremes, which are expected to become more common under anthropogenic climate change...

...Andrea J. Morash; Claire Neufeld; Tyson J. MacCormack; Suzanne Currie ABSTRACT Environmental variability in aquatic ecosystems makes the study of ectotherms complex and challenging. Physiologists have historically overcome this hurdle in the laboratory by using ‘average’ conditions, representative...

... of these mechanisms can be difficult to separate. In this study, we used the western fence lizard, Sceloporus occidentalis , as an ectothermic model to determine whether a reduction in metabolic rate is sufficient to resist muscle atrophy. We induced atrophy through sciatic denervation of the gastrocnemius muscle...