.... Keywords: Anolis; Thermal physiology; Reproduction; Thermal tolerance; Repeatability; Climate change © 2024. Published by The Company of Biologists Ltd. Journal of Experimental Biology Accepted manuscript Summary statement This study investigates gamete heat sensitivity, revealing heat tolerance...

..., the serious drought experienced in the Amazon basin in 2023 resulted in a significant decline in fish populations. Elevated water temperatures, reaching up to 38°C, led to mass mortality events, because these temperatures surpass the thermal tolerance of many Amazonian fish species. We know this because our...

... diel cycles modestly increased critical thermal tolerance. We predicted that warm diel cycling temperatures would increase gill surface area. Notably, fish acclimated to either thermal cycle had a reduced gill surface area and increased intralamellar cell mass when compared with control fish...

... on colony composition in modular animals and phytoplankton food quality. Climate change Thermal tolerance Modular organisms Marine Feeding systems Indirect effects National Science Foundation http://dx.doi.org/10.13039/100000001 OCE - 1948788 Florida State University http...

... acclimated to a combination of high temperatures and mild dehydration stress dependent on acclimation duration. Arctic Collembola Climate change Thermal tolerance Upper thermal limit Cross-tolerance Uddannelses- og Forskningsministeriet http://dx.doi.org/10.13039/100008389...

... stress. Thermal tolerance of M. capitata may be partly due to harboring a mixture of Cladocopium and Durusdinium spp., whereas P. acuta was dominated by other distinct Cladocopium spp. Only M. capitata survived the experiment, but physiological state in heatwave-exposed M. capitata remained significantly...

.... However, water balance and thermal tolerance intersect at high temperatures, such that mortality is sometimes determined by dehydration, rather than heat (especially during long exposures in dry conditions). Furthermore, water balance and thermal tolerance sometimes interact to determine survival...

...Kamron Kayhani; Felipe S. Barreto ABSTRACT Determining the mechanisms by which organisms evolve thermal tolerance is crucial to predicting how populations may respond to changes in local temperature regimes. Although evidence of relationships between mitochondrial background and thermal adaptation...

...Ian A. Bouyoucos; Alyssa M. Weinrauch; Ken M. Jeffries; W. Gary Anderson ABSTRACT Thermal tolerance and associated mechanisms are often tested via the critical thermal maximum (CT max ). The agitation temperature is a recently described thermal limit in fishes that has received little mechanistic...

..., respectively). Finally, the oxygen level at which bradycardia occurred was significantly higher in free-swimming salmon than in those in respirometers (∼62% versus 53% air saturation). These results: highlight the limitations of some lab-based methods of determining f H parameters and thermal tolerance...

... larvae derived from parents exposed to diel cycles of heat stress and hypoxia had a reduced endocrine stress response to the combined effects of an acute heat and hypoxia challenge, as well as a higher thermal tolerance. In contrast, the same progeny had an equal or greater cellular stress response...

.... and Moran , N. A. ( 2007 ). Aphid thermal tolerance is governed by a point mutation in bacterial symbionts . PLoS Biol. 5 , e96 . 10.1371/journal.pbio.0050096 Engel , P. and Moran , N. A. ( 2013 ). The gut microbiota of insects–diversity in structure and function . FEMS...

... focus on the ability of species to tolerate low temperatures, whereas studies investigating physiological adaptations of species to periodically warm and variable temperatures are few. In this study, we investigated temporal changes in thermal tolerances and the transcriptome in the Greenlandic seed bug...

... pathways that could be contributing to increased thermal tolerance in colonized tadpoles including amino acid metabolism, vitamin biosynthesis and ROS scavenging pathways. Our results demonstrate that the microbiome influences host plasticity and the response of hosts to environmental stressors. Author...

.... Metabolic scaling Body size Temperature Global warming Species distribution Thermal tolerance Ministero dell’Università e della Ricerca Universita del Salento (DiSTeBA) Interreg CASCADE 10255941 Climate change has altered ecological rates by shifting...

... Summary: Variation in thermal sensitivity of metabolism and thermal tolerance within and among Fundulus heteroclitus populations is wide and trait dependent, suggesting individuals have numerous adaptive strategies for dealing with temperature. Fundulus heteroclitus Metabolism CT max...

... sensitivity of their hearts; this rapid cardiac thermal plasticity may help migratory fishes like Arctic char mitigate short-term thermal challenges. Heart rate Thermal variation Acclimation rate Climate change Thermal tolerance Cardiac function Polar Knowledge Canada http://dx.doi.org...

... thermal tolerance in ectotherms can be limited by the capacity for oxygen uptake ( Blasco et al., 2020 ; Fry, 1971 ; Pörtner, 2010 ). However, the fact that size-related variation in Ṁ O 2 ,max only accounted for about 60% of the variation in CTS max indicates that other mechanisms must have...

...Carlie A. Muir; Shawn R. Garner; Sashko Damjanovski; Bryan D. Neff ABSTRACT In many fishes, upper thermal tolerance is thought to be limited in part by the heart's ability to meet increased oxygen demands during periods of high temperature. Temperature-dependent plasticity within the cardiovascular...

... has limited thermal tolerance ( Voigt, 1895 ; Thienemann, 1950 ). The species occurs primarily where annual average water temperature is <15°C and tolerates temperatures as low as 0.7°C ( Voigt, 1895 ; Reynoldson, 1981 ; Durance and Ormerod, 2007 ). Despite this preference for the cold habitat...