Claim · model-written summary
Authors propose that elevated CO2 enhances photosynthesis and carbon allocation for N2 fixation, helping explain encroachment.
- Taxon
- African savanna treest0
- Outcome
- ecological successe0
- Qualifier
- eCO2 enhances photosynthesis, facilitating greater C allocation for N2 fixatione0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Verbatim
e0“eCO2 enhances photosynthesis, facilitating greater C allocation for N2 fixation, helps to explain the ecological success of the subset of species driving encroachment under increased atmospheric CO2”
t0“African savanna trees”
Title
N2 fixation is linked to the ability to encroach in African savanna trees
Telford, E.M.; Simpson, K.; Street, L.; et al. White Rose Research Online (University of Leeds, The University of Sheffield, University of York) 2026
Other claims from this paper (7)
- Observation Encroachers had lower leaf δ15N than non-encroachers.
- Observation Nodule mass fraction, stem δ15N and percentage of N from fixation were similar across encroachers and non-encroachers.
- Intervention effect Plants fixed more N2 under elevated CO2.
- Intervention effect Plants fixed more N2 under well-watered conditions.
- Association Leaf and stem δ15N were unrelated in encroachers.
- Association Leaf and stem δ15N were positively related in non-encroachers.
- Mechanism Authors interpret N2 fixation as enabling encroachers to meet immediate nitrogen demands under water limitation and increasing CO2.