Implications of increasing temperature stress for predatory biocontrol of vector mosquitoes.

摘要: Predators play a critical role in regulating larval mosquito prey populations aquatic habitats. Understanding predator-prey responses to climate change-induced environmental perturbations may foster optimal efficacy vector reduction. However, organisms differentially respond heterogeneous thermal environments, potentially destabilizing trophic systems. Here, we explored the limits of activity (CTLs; thermal-maxima [CTmax] and minima [CTmin]) key species. We concurrently examined CTL asynchrony two notonectid predators (Anisops sardea Enithares chinai) one copepod predator (Lovenula falcifera) as well larvae three species, Aedes aegypti, Anopheles quadriannulatus Culex pipiens, across instar stages (early, 1st; intermediate, 2nd/3rd; late, 4th). Overall, differed significantly CTmax CTmin. generally had lower CTLs than prey, dependent on stage with first instars having lowest (lowest warm tolerance), but also CTmin (highest cold tolerance). For predators, L. falcifera exhibited narrowest overall, E. chinai widest A. intermediate CTLs, respectively. Among global invader Ae. aegypti consistently highest CTmax, whilst differences among were inconsistent species according stage. These results point significant mismatches under change, adversely affecting natural biocontrol given projected shifts temperature fluctuations study region. The overall narrower breadth native relative reduce biotic resistance pests harmful implications for population success capacity change.