Fungi tend to reproduce sexually when nutrients are limited or other conditions are unfavorable, but they reproduce asexually in more ideal conditions. Why is this strategy successful?

Sexual reproduction allows them to produce fit offspring that can survive under stressed environmental condition

Explanation:

Reproducing sexually and asexually allows fungi to adjust as per the environmental condition.

When the conditions are favorable, they reproduce asexually and increase their number but when the condition are not favorable and environmental selective pressure occur then they undergo genetic variation through sexual reproduction to produce a stable and fit offspring that could survive under stressed condition with limited resources.