Heat hardening capacity in Drosophila melanogaster is life stage-specific and juveniles show the highest plasticity
Nasiri Moghadam, N., Ketola, T., Pertoldi, C., Bahrndorff, S., & Kristensen, T. N. (2019). Heat hardening capacity in Drosophila melanogaster is life stage-specific and juveniles show the highest plasticity. Biology Letters, 15 (2), 20180628. doi:10.1098/rsbl.2018.0628
Published inBiology Letters
DisciplineEkologia ja evoluutiobiologia
© 2019 The Author(s)
Variations in stress resistance and adaptive plastic responses during ontogeny have rarely been addressed, despite the possibility that differences between life stages can affect species' range margins and thermal tolerance. Here, we assessed the thermal sensitivity and hardening capacity of Drosophila melanogaster across developmental stages from larval to the adult stage. We observed strong differences between life stages in heat resistance, with adults being most heat resistant followed by puparia, pupae and larvae. The impact of heat hardening (1 h at 35°C) on heat resistance changed during ontogeny, with the highest positive effect of hardening observed in puparia and pupae and the lowest in adults. These results suggest that immobile life stages (puparia and pupae) have evolved high plasticity in upper thermal limits whereas adults and larvae rely more on behavioural responses to heat stress allowing them to escape from extreme high temperatures. While most studies on the plasticity of heat resistance in ectotherms have focused on the adult life stage, our findings emphasize the crucial importance of juvenile life stages of arthropods in understanding the thermal biology and life stage-specific physiological responses to variable and stressful high temperatures. Failure to acknowledge this complication might lead to biased estimates of species' ability to cope with environmental changes, such as climate change. ...
PublisherThe Royal Society Publishing
MetadataShow full item record
Showing items with similar title or keywords.
Effects of photoperiod on life-history and thermal stress resistance traits across populations of Drosophila subobscura Nasiri Moghadam, Neda; Novicic, Zorana Kurbalija; Pertoldi, Cino; Kristensen, Torsten N.; Bahrndorff, Simon (John Wiley & Sons Ltd., 2019)Introduction Organisms use environmental cues to match their phenotype with the future availability of resources and environmental conditions. Changes in the magnitude and frequency of environmental cues such as photoperiod ...
Responses to Developmental Temperature Fluctuation in Life History Traits of Five Drosophila Species (Diptera: Drosophilidae) from Different Thermal Niches Manenti, Tommaso; Kjærsgaard, Anders; Munk Schou, Toke; Pertoldi, Cino; Moghadam, Neda N.; Loeschcke, Volker (MDPI AG, 2021)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 ...
Broad thermal tolerance is negatively correlated with virulence in an opportunistic bacterial pathogen Ashrafi, Roghaieh; Bruneaux, Matthieu; Sundberg, Lotta-Riina; Pulkkinen, Katja; Valkonen, Janne; Ketola, Tarmo (Wiley-Blackwell Publishing, Inc., 2018)Predicting the effects of global increase in temperatures on disease virulence is challenging, especially for environmental opportunistic bacteria, because pathogen fitness may be differentially affected by temperature ...
Upper thermal threshold of Lepidurus arcticus (Branchiopoda, Notostraca) in lakes on the southern outreach of its distribution range Qvenild, Tore; Fjeld, Eirik; Fjellheim, Arne; Hammar, Johan; Hesthagen, Trygve; Lakka, Hanna-Kaisa (Norwegian University of Science and Technology (NTNU) Library, 2021)The Arctic tadpole shrimp Lepidurus arcticus has a circumpolar distribution and the Scandes (Fennoscandian Mountains) marks its southernmost limit in Europe. Within this area, 391 natural and 88 regulated lakes with L. ...
Warming temperatures and ectoparasitic sea lice impair internal organs in juvenile Atlantic salmon Medcalf, Kate E.; Hutchings, Jeffrey A.; Fast, Mark D.; Kuparinen, Anna; Godwin, Sean C. (Inter-Research, 2021)As a consequence of climate change and open net-pen salmon farming, wild Atlantic salmon Salmo salar are increasingly likely to encounter elevated temperatures and parasite abundances during their early marine migration. ...