Life-History Responses of the Fall Webworm <i>Hyphantria cunea</i> to Temperature Change: Not Following the Temperature-Size Rule.

ABSTRACT: Temperature serves as a critical environmental factor for ectotherms and significantly impacts numerous life history traits. This study examined the influence of temperature on life-history traits of the fall webworm Hyphantria cunea at 20°C, 22°C, 24°C, 26°C, and 28°C. There were no significant differences in larval survival rates across the temperatures tested. However, pupal survival at 28°C was significantly lower compared to other temperatures. Sex ratios remained consistent at 20°C-26°C but skewed toward males at 28°C. The developmental time from egg to adult decreased as the temperature rose, with males emerging earlier than females (protandry), primarily due to shorter larval stages. Pupal weight exhibited temperature- and sex-dependent trends: female pupae peaked at 22°C (1

SUBMITTER: Lu H 

PROVIDER: S-EPMC12488214 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature