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It's not the heat, it's the humidity: Water loss hurts bees most in the desert

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Digger bees lose large amounts of water during flight, which compromises their activity period and survival in the desert heat. Researchers from Arizona State University will present their work this week at the American Physiological Society (APS) Intersociety Meeting in Comparative Physiology: From Organism to Omics in an Uncertain World conference in San Diego.
Digger bees lose large amounts of water during flight, which compromises their activity period and survival in the desert heat. Researchers from Arizona State University will present their work this week at the American Physiological Society (APS) Intersociety Meeting in Comparative Physiology: From Organism to Omics in an Uncertain World conference in San Diego.

Climate change plays a role in the physiological evolution and survival of animals of all sizes. Desert animals, already acclimated to high temperatures, use evaporative heat loss to help prevent overheating. However, the sometimes-limited ability to replenish water loss means the danger of dehydration is a challenge for desert animals, including the Sonoran Desert digger bee.
Bees are an integral part of the ecosystem due to their ability to pollinate—more than 80% of flowering plants rely on insect pollinators.

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