Trait responses, nonconsumptive effects, and the physiological basis of Helicoverpa armigera to bat predation risk.

ABSTRACT: Predation reduces the population density of prey, affecting its fitness and population dynamics. Few studies have connected trait changes with fitness consequences in prey and the molecular basis and metabolic mechanisms of such changes in bat-insect systems. This study focuses on the responses of Helicoverpa armigera to different predation risks, focusing on echolocating bats and their calls. Substantial modifications were observed in the nocturnal and diurnal activities of H. armigera under predation risk, with enhanced evasion behaviors. Accelerated development and decreased fitness were observed under predation risks. Transcriptomic and metabolomic analyses indicated that exposure to bats induced the upregulation of amino acid metabolism- and antioxidant pathway-related genes, reflecti

SUBMITTER: Liu Y 

PROVIDER: S-EPMC11538460 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature