Heatwave Study Finds 79F Male Burying Beetles Increase Same-Sex Mounting
Updated
Updated · Defector · Jul 17
Heatwave Study Finds 79F Male Burying Beetles Increase Same-Sex Mounting
2 articles · Updated · Defector · Jul 17
Summary
A three-day 79F heatwave made male burying beetles mount other males more often than beetles kept at about 68F, researchers reported at a biology conference in Florence.
The team linked the shift to cuticular hydrocarbons—waxy chemicals that both prevent dehydration and help beetles identify mates—suggesting heat stress can blunt sex-recognition signals.
Male-male mounting was already common even under normal conditions, a result researcher Solène Morelle said was unexpected and that suggests the behavior is not limited to heat-driven errors.
The findings add to evidence that climate change can disrupt reproduction in cold-blooded animals by forcing trade-offs between survival in hotter, drier conditions and effective communication.