Which environmental condition contributes to increased mosquito populations?

High humidity levels contribute significantly to increased mosquito populations for several reasons. Mosquitoes are aquatic insects that require standing water to breed. High humidity enhances moisture in the environment, creating favorable conditions for the survival and reproduction of mosquitoes.

In humid conditions, there is often an increased availability of stagnant water—whether in puddles, containers, or natural water bodies—where mosquitoes can lay their eggs. Additionally, humidity helps mosquitoes maintain their body moisture, increasing their activity levels and breeding potential.

Conversely, dry seasons typically lead to reductions in available breeding sites as water sources dry up, while cold winds and low temperatures can be detrimental to mosquito survival, limiting their lifecycle and activity. Hence, high humidity is the key environmental condition that fosters the growth and proliferation of mosquito populations.