A1 Journal article (refereed)
Exposure to elevated temperature during development affects eclosion and morphology in the temperate Pieris napi butterfly (Lepidoptera: Pieridae) (2023)

Moradinour, Z., Wiklund, C., Miettinen, A., Gérard, M., & Baird, E. (2023). Exposure to elevated temperature during development affects eclosion and morphology in the temperate Pieris napi butterfly (Lepidoptera: Pieridae). Journal of Thermal Biology, 118, Article 103721. https://doi.org/10.1016/j.jtherbio.2023.103721

JYU authors or editors

Publication details

All authors or editors: Moradinour, Zahra; Wiklund, Christer; Miettinen, Arttu; Gérard, Maxence; Baird, Emily

Journal or series: Journal of Thermal Biology

ISSN: 0306-4565

eISSN: 1879-0992

Publication year: 2023

Volume: 118

Article number: 103721

Publisher: Elsevier

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1016/j.jtherbio.2023.103721

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/92509

Abstract

Global warming has been identified as one of the main drivers of population decline in insect pollinators. One aspect of the insect life cycle that would be particularly sensitive to elevated temperatures is the developmental transition from larva to adult. Temperature-induced modifications to the development of body parts and sensory organs likely have functional consequences for adult behaviour. To date, we have little knowledge about the effect of sub-optimal temperature on the development and functional morphology of different body parts, particularly sensory organs, in ectothermic solitary pollinators such as butterflies. To address this knowledge gap, we exposed the pupae of the butterfly Pieris napi to either 23 °C or 32 °C and measured the subsequent effects on eclosion, body size and the development of the wings, proboscis, eyes and antennae. In comparison to individuals that developed at 23 °C, we found that exposure to 32 °C during the pupal stage increased mortality and decreased time to eclose. Furthermore, both female and male butterflies that developed at 32 °C were smaller and had shorter proboscides, while males had shorter antennae. In contrast, we found no significant effect of rearing temperature on wing and eye size or wing deformity. Our findings suggest that increasing global temperatures and its corresponding co-stressors, such as humidity, will impact the survival of butterflies by impairing eclosion and the proper development of body and sensory organs.

Keywords: temperature; climate changes; effects (results); insects; climate

Free keywords: developmental temperature; sensory organs; body parts; mortality; eclosion; climate change

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2023

Preliminary JUFO rating: 1