Thermal Tolerance News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Almost 40 years of data shows that some species are more heat tolerant, but still face uphill battle against rising temperatures.

Heatwaves are increasingly occurring out-of-season, which may affect plants not primed for the event. Further, heat stress often coincides with water and/or nutrient stress, impairing short-term physiological function and potentially causing downstream effects on reproductive fitness. We investigated the response of water-stressed arid-zone Solanum oligacanthum and Solanum orbiculatum to spring vs summer heat stress under differing nutrient conditions. Heat stress events were imposed in open-topped chambers under in situ desert conditions. To assess short-term impacts, we measured leaf photosy...

Context: Fauna nestboxes are used for conservation, research and mitigation against tree hollow/cavity loss. Scant attention has been given to the microclimate inside boxes until recently, with concern that nestboxes may be ineffective or a thermal trap because of high internal temperatures during summer. Aim: Our study used construction design principles to guide modifications to nestboxes to reduce maximum temperatures inside boxes. Methods: Five trials were undertaken, and modifications included addition of thermal mass, creation of a double wall system and painting the box and/or outer wal...

Qin Wang et al There are microbes near the bottom of the third deepest hole in the world. The cells, recovered from rocks almost 5 kilometres below the surface in China, are the deepest so far found anywhere on land – and they may push beyond the known heat tolerances of life on Earth. A team …