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Exposure to elevated temperature during development affects eclosion and morphology in the temperate Pieris napi butterfly (Lepidoptera Pieridae)
Stockholm University, Faculty of Science, Department of Zoology.ORCID iD: 0000-0003-0203-8216
Stockholm University, Faculty of Science, Department of Zoology, Animal Ecology. Stockholm University, Faculty of Science, Department of Zoology, Population Genetics. Stockholm University, Faculty of Science, The Bolin Centre for Climate Research (together with KTH & SMHI).ORCID iD: 0000-0003-4719-487x
Stockholm University, Faculty of Science, Department of Zoology, Functional Morphology.ORCID iD: 0000-0002-2485-0662
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Number of Authors: 52023 (English)In: Journal of Thermal Biology, ISSN 0306-4565, E-ISSN 1879-0992, Vol. 118, article id 103721Article in journal (Refereed) Published
Abstract [en]

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 degrees C or 32 degrees 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 degrees C, we found that exposure to 32 degrees C during the pupal stage increased mortality and decreased time to eclose. Furthermore, both female and male butterflies that developed at 32 degrees 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.

Place, publisher, year, edition, pages
2023. Vol. 118, article id 103721
Keywords [en]
Developmental temperature, Sensory organs, Body parts, Mortality, Eclosion, Climate change
National Category
Zoology
Identifiers
URN: urn:nbn:se:su:diva-225436DOI: 10.1016/j.jtherbio.2023.103721ISI: 001129635900001PubMedID: 38016229OAI: oai:DiVA.org:su-225436DiVA, id: diva2:1828361
Available from: 2024-01-16 Created: 2024-01-16 Last updated: 2024-01-16Bibliographically approved

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Moradinour, ZahraWiklund, ChristerGérard, MaxenceBaird, Emily

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Moradinour, ZahraWiklund, ChristerMiettinen, ArttuGérard, MaxenceBaird, Emily
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Department of ZoologyAnimal EcologyPopulation GeneticsThe Bolin Centre for Climate Research (together with KTH & SMHI)Functional Morphology
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Journal of Thermal Biology
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