Aktiviteter pr. år
Abstract
Temperature tolerance is critical for defining the fundamental niche of ectotherms and researchers classically use either static (exposure to a constant temperature) or dynamic (ramping temperature) assays to assess tolerance. The use of different methods complicates comparison between studies and here we present mathematical model (and R-scripts) to reconcile thermal tolerance measures obtained from static and dynamic assays. Our model uses input data from several static or dynamic experiments and is based on the well-supported assumption that thermal injury accumulation rate increases exponentially with temperature (recently re-introduced as Thermal Tolerance Landscapes). The model also assumes thermal stress at different temperatures to be additive and using experiments with Drosophila melanogaster, we validate these central assumptions by demonstrating that heat injury attained at different heat stress intensities and durations is additive. In a separate experiment we demonstrate that our model can accurately describe injury accumulation during fluctuating temperature stress and further we validate the model by successfully converting literature data of ectotherm heat tolerance (both static and dynamic assays) to a single, comparable metric (the temperature tolerated for 1 hour). The model presented here has many promising applications for the analysis of ectotherm thermal tolerance and we also discuss potential pitfalls that should be considered and avoided using this model.
Originalsprog | Engelsk |
---|---|
Artikelnummer | 12840 |
Tidsskrift | Scientific Reports |
Vol/bind | 11 |
Udgave nummer | 1 |
ISSN | 2045-2322 |
DOI | |
Status | Udgivet - 1 dec. 2021 |
Udgivet eksternt | Ja |
Fingeraftryk
Dyk ned i forskningsemnerne om 'A unifying model to estimate thermal tolerance limits in ectotherms across static, dynamic and fluctuating exposures to thermal stress'. Sammen danner de et unikt fingeraftryk.Aktiviteter
- 1 Foredrag og præsentationer i privat eller offentlig virksomhed
-
Vin & Viden: Klimaforandringer og insekter - konsekvenser for fødevarer og sundhed
Michael Ørsted (Foredragsholder)
13 apr. 2023Aktivitet: Foredrag og mundtlige bidrag › Foredrag og præsentationer i privat eller offentlig virksomhed
-
Cold comfort: metabolic rate and tolerance to low temperatures predict latitudinal distribution in ants
Willot, Q., Ørsted, M., Malte, H. & Overgaard, J., 13 sep. 2023, I: Proceedings of the Royal Society B: Biological Sciences. 290, 2006, 1 s., 20230985.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review
2 Citationer (Scopus) -
Dehydration worsens heat tolerance and predicted survival of locusts
Youngblood, J., Ørsted, M., Overgaard, J., Angiletta, M. & VandenBrooks, J., 8 aug. 2023.Publikation: Konferencebidrag uden forlag/tidsskrift › Konferenceabstrakt til konference › Forskning › peer review
Åben adgang -
Thermal limits of life and death in ectotherms: implications for predicting species distributions
Ørsted, M. & Overgaard, J., 24 apr. 2023.Publikation: Konferencebidrag uden forlag/tidsskrift › Konferenceabstrakt til konference › Forskning › peer review