Imperial College London
Alternate

Samraat Pawar

Faculty of Natural Sciences, Department of Life Sciences (Silwood Park)

Professor of Theoretical Ecology
 
 
 
//

Contact

 

+44 (0)20 7594 2213s.pawar CV

 
 
//

Location

 

2.4KennedySilwood Park

//

Summary

 

Publications

Citation

BibTex format

@article{Kontopoulos:2020:10.1111/evo.13946,
author = {Kontopoulos, D and van, Sebille E and Lange, M and Yvon-Durocher, G and Barraclough, TG and Pawar, S},
doi = {10.1111/evo.13946},
journal = {Evolution},
pages = {775--790},
title = {Phytoplankton thermal responses adapt in the absence of hard thermodynamic constraints},
url = {http://dx.doi.org/10.1111/evo.13946},
volume = {74},
year = {2020}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - To better predict how populations and communities respond to climatic temperature variation, it is necessary to understand how the shape of the response of fitnessrelated rates to temperature evolves (the thermal performance curve). Currently, there is disagreement about the extent to which the evolution of thermal performance curves is constrained. One school of thought has argued for the prevalence of thermodynamic constraints through enzyme kinetics, whereas another argues that adaptation can—at least partly—overcome such constraints. To shed further light on this debate, we perform a phylogenetic metaanalysis of the thermal performance curves of growth rate of phytoplankton—a globally important functional group—, controlling for environmental effects (habitat type and thermal regime). We find that thermodynamic constraints have a minor influence on the shape of the curve. In particular, we detect a very weak increase of maximum performance with the temperature at which the curve peaks, suggesting a weak “hotterisbetter” constraint. Also, instead of a constant thermal sensitivity of growth across species, as might be expected from strong constraints, we find that all aspects of the thermal performance curve evolve along the phylogeny. Our results suggest that phytoplankton thermal performance curves adapt to thermal environments largely in the absence of hard thermodynamic constraints.
AU  - Kontopoulos,D
AU  - van,Sebille E
AU  - Lange,M
AU  - Yvon-Durocher,G
AU  - Barraclough,TG
AU  - Pawar,S
DO  - 10.1111/evo.13946
EP  - 790
PY  - 2020///
SN  - 0014-3820
SP  - 775
TI  - Phytoplankton thermal responses adapt in the absence of hard thermodynamic constraints
T2  - Evolution
UR  - http://dx.doi.org/10.1111/evo.13946
UR  - https://onlinelibrary.wiley.com/doi/full/10.1111/evo.13946
UR  - http://hdl.handle.net/10044/1/77393
VL  - 74
ER  -
Download