Claim · model-written summary
Quercus douglasii seedlings had the greatest drought tolerance.
- Taxon
- Quercus douglasii
Quercus douglasiie0 - Organ / stage
- seedlingse0
- Outcome
- drought tolerancee0
- Direction
- greateste0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Quercus douglasii seedlings had the greatest drought tolerance”
Title
Oak Regeneration in the Upper Carmel Valley, California
James R. Griffin Ecology 1971. doi:10.2307/1936034
Other claims from this paper (12)
- Observation Quercus douglasii acorns matured in October.
- Observation Q. lobata acorns matured in October.
- Observation Nondormant acorns of these two oaks germinated quickly at favorable temperatures.
- Observation Quercus agrifolia acorns matured later.
- Observation Quercus agrifolia acorns germinated more slowly.
- Observation Surface acorns lost viability on a south aspect.
- Observation Surface acorns on a north aspect survived autumn heat and germinated in winter but rooted poorly.
- Intervention effect Buried acorns germinated well on either aspect.
- Mechanism Burial by birds and squirrels insulates acorns from heat, hides them from animals, and ensures rooting.
- Observation On south-facing soil with grass, Quercus douglasii seedlings survived their first summer only in wet years.
- Observation On north aspects, seedlings of several species survive grass competition over broader climate conditions.
- Observation Deer and pocket gophers eliminated seedlings surviving summer drought.