A1 Journal article (refereed)
Responses to Developmental Temperature Fluctuation in Life History Traits of Five Drosophila Species (Diptera: Drosophilidae) from Different Thermal Niches (2021)

Manenti, T., Kjærsgaard, A., Munk Schou, T., Pertoldi, C., Moghadam, N. N., & Loeschcke, V. (2021). Responses to Developmental Temperature Fluctuation in Life History Traits of Five Drosophila Species (Diptera: Drosophilidae) from Different Thermal Niches. Insects, 12(10), Article 925. https://doi.org/10.3390/insects12100925

JYU authors or editors

Publication details

All authors or editors: Manenti, Tommaso; Kjærsgaard, Anders; Munk Schou, Toke; Pertoldi, Cino; Moghadam, Neda N.; Loeschcke, Volker

Journal or series: Insects

eISSN: 2075-4450

Publication year: 2021

Publication date: 11/10/2021

Volume: 12

Issue number: 10

Article number: 925

Publisher: MDPI AG

Publication country: Switzerland

Publication language: English

DOI: https://doi.org/10.3390/insects12100925

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/78727

Publication is parallel published: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8540664/

Abstract

Temperature has profound effects on biochemical processes as suggested by the extensive variation in performance of organisms across temperatures. Nonetheless, the use of fluctuating temperature (FT) regimes in laboratory experiments compared to constant temperature (CT) regimes is still mainly applied in studies of model organisms. We investigated how two amplitudes of developmental temperature fluctuation (22.5/27.5 °C and 20/30 °C, 12/12 h) affected several fitness-related traits in five Drosophila species with markedly different thermal resistance. Egg-to-adult viability did not change much with temperature except in the cold-adapted D. immigrans. Developmental time increased with FT among all species compared to the same mean CT. The impact of FT on wing size was quite diverse among species. Whereas wing size decreased quasi-linearly with CT in all species, there were large qualitative differences with FT. Changes in wing aspect ratio due to FT were large compared to the other traits and presumably a consequence of thermal stress. These results demonstrate that species of the same genus but with different thermal resistance can show substantial differences in responses to fluctuating developmental temperatures not predictable by constant developmental temperatures. Testing multiple traits facilitated the interpretation of responses to FT in a broader context.

Keywords: climate changes; environmental changes; temperature; adaptation (change); heat resistance; wings; life cycle (natural science); Drosophilidae

Free keywords: thermal physiology; fluctuating temperature; Jensen’s inequality; temperature variance; acclimation; wing size; climate change; developmental time; viability; wing aspect ratio

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2021

JUFO rating: 1