The delicate biological balance of tropical regions is under unprecedented stress. A recent study conducted in Kenya and Peru reveals that low-altitude insects—vital for pollination and global food chains—are reaching the critical limit of their thermal resistance. Global warming is no longer merely an abstract threat to habitat, but a direct assault on the molecular integrity of these species.
The research indicates that, upon exceeding certain temperatures, proteins essential for the survival of these organisms begin to disintegrate. This process of "denaturation" impedes basic biological functions, leading to the rapid demise of specimens. Unlike animals in temperate regions, which possess a greater margin for thermal adaptation, tropical inhabitants evolved in stable climates and operate perilously close to their tolerance ceiling.
The collapse of these populations could trigger a cascade effect within ecosystems. Without the capacity to migrate to higher altitudes or adapt to the accelerated pace of climate change, tropical insects face a scenario of silent extinction. This phenomenon highlights the fragility of biodiversity in the planet's richest zones, where biology appears to be losing the race against the thermometer.
With information from Le Monde Sciences.
Source · Le Monde Sciences
