Shows rainfall variability affects pest populations in agro-ecosystems, suggesting ecological risks.
Climate change has significantly altered rainfall patterns across many agricultural regions, leading to irregular precipitation events such as intense rainfall, droughts, and shifts in seasonal rainfall distribution. These changes influence the ecological balance within agro-ecosystems, particularly affecting pest populations and their natural predators. Rainfall variability modifies habitat conditions, plant physiology, and trophic interactions among plants, herbivorous pests, and predators or parasitoids. Heavy rainfall events may reduce pest populations by washing away eggs and larvae, whereas drought conditions often favor certain pests by weakening plant defenses and disrupting predator activity. Such climate-induced shifts can destabilize pest–predator relationships and increase the risk of pest outbreaks.
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Mulani et al. (2026) studied this question.
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