Claim · model-written summary
Contrasting warming responses of photosynthesis in early- and late-successional trees may shift tropical forest community composition.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Verbatim
e0“contrasting responses of photosynthesis to warming in ES and LS species may imply potential functional shifts in tree community composition of tropical forests in a warmer climate”
Title
Climate Change sensitivity of Photosynthesis and Respiration in Tropical Trees
Myriam Mujawamariya Gothenburg University Publications Electronic Archive (Gothenburg University) 2021
Other claims from this paper (14)
- Association Mature-tree stomatal conductance, transpiration and light saturated net photosynthesis decreased at warmer lower-elevation sites in the dry season.
- Observation In the wet season, mature-tree stomatal conductance and net photosynthesis lacked the dry-season pattern.
- Observation In the wet season, mature-tree transpiration showed the opposite elevation pattern.
- Association Without drought, net photosynthesis decreased at the warmest low-elevation site in late-successional species.
- Observation Without drought, early-successional species did not show the decrease in net photosynthesis at the warmest site.
- Association Dry-season net photosynthesis fell equally in early- and late-successional species at the two warmer sites.
- Observation Dry-season net photosynthesis was not reduced at the high-elevation site.
- Association Leaf dark respiration measured at 20 ℃ was strongly reduced in trees grown at warmer sites.
- Observation Dark respiration at prevailing nighttime temperatures stayed constant or declined in warmer-grown trees.
- Association Drought reduced leaf dark respiration.
- Intervention effect Warm-grown trees showed no significant rise in optimum temperature of net photosynthesis or its biochemical processes.
- Observation The authors infer reduced tropical-tree water use and CO2 uptake if dry seasons become more pronounced in warmer climate.
- Recommendation The authors recommend accounting for thermal acclimation of leaf dark respiration to avoid overestimating warming effects.
- Association The thermal optimum of photosynthesis may acclimate less in tropical montane tree species than in temperate and boreal species.