The effects of climate warming on the migratory status of early summer populations of Mythimna separata (Walker) moths: A case-study of enhanced corn damage in central-northern China, 1980-2016.

ABSTRACT: Mythimna separata (Walker) moths captured in light traps were monitored in Luohe, central-northern China, from 1980 to 2016. Annual average temperature recorded an increase of 0.298°C/10 years in this region in the period. Our results indicate that a rising April and May average temperature and earlier occurrences of days recording the highest day temperature (30°C) caused an advanced peak and increasing proportion of high ovarian development levels of first-generation females in earlier summers. Results using Johnson's formulation of "oogenesis-flight syndrome" indicate that increasing sexual maturity proportion has resulted in more emigrant individuals in the local first-generation moth becoming residents, and then increased individuals rapidly in the local second-generation moth

SUBMITTER: Chen Q 

PROVIDER: S-EPMC6854107 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature