Fig. 1
From: Queens stay, workers leave: caste-specific responses to fatal infections in an ant
Survival of workers of the ant Temnothorax crassispinus was significantly decreased in young workers suffering an infection of the entomopathogenic fungus Metarhizium brunneum (QLInf, QRWInf) compared to young workers treated with a control solution (QLCo, QRCo, QRQInf) in queenless (QL) and queenright (QR) colonies. Old, untreated control workers did not show a reduction in lifespan between treatment groups. The experiment was terminated 75 days after the treatment and the lifespans of surviving workers were included as censored data. A colony-wise comparison also shows significant differences in survival rates between infected and uninfected individuals (see main text)