Claim · model-written summary
Increased nitrogen intensified competition for water.
- Taxon
- Calluna vulgaris
Calluna vulgarise0 - Treatment
- increased nitrogen supplye0
- Interactor
- Pteridium aquilinum
Pteridium aquilinume0other - Outcome
- competition for watere0
- Direction
- increasede0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Competition for water between Calluna vulgaris (heather) and Pteridium aquilinum (bracken) was studied in conditions of increased temperature, drought and increased nitrogen supply. All these factors increased the intensity of competition for water”
Title
C. Gordon; S. J. Woodin; C. E. Mullins; et al. Functional Ecology 1999. doi:10.1046/j.1365-2435.1999.00012.x
Other claims from this paper (14)
- Intervention effect Increased temperature intensified competition for water.
- Intervention effect Drought intensified competition for water.
- Observation Drought with increased nitrogen had the greatest effect on water use.
- Intervention effect Both species increased water-use efficiency with nitrogen.
- Intervention effect Both species increased water-use efficiency with drought.
- Observation Calluna had higher water demand than Pteridium.
- Observation Calluna acclimated to water stress more readily than Pteridium.
- Observation Calluna was the superior water competitor.
- Association Calluna water-use efficiency declined as its roots depleted water from the Pteridium rooting zone.
- Association Pteridium increased water-use efficiency under competition.
- Observation Carbon isotope discrimination was strongly related to instantaneous water-use efficiency in both species.
- Method / resource Discrimination was a more sensitive seasonal water-use efficiency measure.
- Method / resource Retrospective Δ measurement was useful for Calluna leaves.
- Method / resource Retrospective Δ measurement was inappropriate for Pteridium rhizome.