This week in Nature: Heat stress – Ectotherms show dangerous sensitivity to extreme temperatures. Browse the full issue:
The cover shows a splendid treefrog in Costa Rica. The biological processes of ectotherms, such as amphibians, insects and fish, are directly affected by temperature, which means even small rises can cause significant problems. In this week’s issue,examine the potential effects of climate change on these creatures.
The researchers find that in the range of temperatures deemed as broadly survivable, for every rise in temperature of 1 °C, the rate of biological processes maintaining growth, homeostasis and ageing increases by 7%. But for every 1 °C rise in the range of temperatures deemed potentially dangerous, the rate of heat failure, which leads to death, increases by more than 100%.
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