Quercus lobata 214 claims

species · family Fagaceae · green plant · NCBI Taxonomy ↗

Common name: valley oak — Also written in claims: valley oak · valley oaks

12 spellings

Quercus lobata
Quercus lobataMiguel Vieira from Walnut Creek, CA, USA · CC BY 2.0 · Wikimedia Commons ↗
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Female flower production was negatively correlated with rainfall across years.

Taxon
Quercus lobataQuercus lobatat0
Outcome
female flower productione0
Direction
negatively correlatede0

Not reportedSetting

Verbatim

e0

“Among years, female flower production was negatively correlated with rainfall”

✓ located verbatim in the source · abstract, characters 243–320
t0

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60
t1

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60

Title

Flowering and Flower Maturation in Valley Oak Quercus lobata

Walter D. Koenig; Ian S. Pearse; Mario B. Pesendorfer; et al. Ecology and Evolution 2026. doi:10.1002/ece3.73720

Other claims from this paper (9)
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Warm spring temperatures decreased the share of flowers maturing into acorns.

Taxon
Quercus lobataQuercus lobatat0
Outcome
proportion of flowers maturing into acornse0
Direction
decreasede0
Setting
warm spring temperaturese0

Verbatim

e0

“warm spring temperatures and a large acorn crop the previous year decreased the proportion of flowers maturing into acorns”

✓ located verbatim in the source · abstract, characters 328–450
t0

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60
t1

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60

Title

Flowering and Flower Maturation in Valley Oak Quercus lobata

Walter D. Koenig; Ian S. Pearse; Mario B. Pesendorfer; et al. Ecology and Evolution 2026. doi:10.1002/ece3.73720

Other claims from this paper (9)
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

A large previous acorn crop decreased flower maturation into acorns.

Taxon
Quercus lobataQuercus lobatat0
Outcome
proportion of flowers maturing into acornse0
Direction
decreasede0
Comparator
a large acorn crop the previous yeare0

Verbatim

e0

“warm spring temperatures and a large acorn crop the previous year decreased the proportion of flowers maturing into acorns”

✓ located verbatim in the source · abstract, characters 328–450
t0

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60
t1

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60

Title

Flowering and Flower Maturation in Valley Oak Quercus lobata

Walter D. Koenig; Ian S. Pearse; Mario B. Pesendorfer; et al. Ecology and Evolution 2026. doi:10.1002/ece3.73720

Other claims from this paper (9)
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Trees with greater groundwater access in warmer microclimates produced more catkins.

Taxon
Quercus lobataQuercus lobatat0
Outcome
catkinse0
Direction
moree0
Setting
warmer microclimatese0

Verbatim

e0

“individuals with greater access to ground water growing in warmer microclimates produced more catkins and more female flowers”

✓ located verbatim in the source · abstract, characters 465–590
t0

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60
t1

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60

Title

Flowering and Flower Maturation in Valley Oak Quercus lobata

Walter D. Koenig; Ian S. Pearse; Mario B. Pesendorfer; et al. Ecology and Evolution 2026. doi:10.1002/ece3.73720

Other claims from this paper (9)
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Trees with greater groundwater access in warmer microclimates produced more female flowers.

Taxon
Quercus lobataQuercus lobatat0
Outcome
female flowerse0
Direction
moree0
Setting
warmer microclimatese0

Verbatim

e0

“individuals with greater access to ground water growing in warmer microclimates produced more catkins and more female flowers”

✓ located verbatim in the source · abstract, characters 465–590
t0

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60
t1

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60

Title

Flowering and Flower Maturation in Valley Oak Quercus lobata

Walter D. Koenig; Ian S. Pearse; Mario B. Pesendorfer; et al. Ecology and Evolution 2026. doi:10.1002/ece3.73720

Other claims from this paper (9)
Associationobservedoriginal resultmeasured

Claim · model-written summary

Male and female flower abundance were positively correlated after controlling for size and resources.

Taxon
Quercus lobataQuercus lobatat0
Organ / stage
flowere0
Outcome
male and female flower abundancee0
Direction
positively correlatede0
Qualifier
controlling for tree size and resourcese0

Verbatim

e0

“male and female flower abundance were positively correlated even after controlling for tree size and resources”

✓ located verbatim in the source · abstract, characters 605–715
t0

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60
t1

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60

Title

Flowering and Flower Maturation in Valley Oak Quercus lobata

Walter D. Koenig; Ian S. Pearse; Mario B. Pesendorfer; et al. Ecology and Evolution 2026. doi:10.1002/ece3.73720

Other claims from this paper (9)
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

All three flower indices explained significant acorn production variance across years and trees.

Taxon
Quercus lobataQuercus lobatat0
Organ / stage
flowere0
Outcome
variance in acorn productione0

Not reportedDirection

Verbatim

e0

“All three flower indices explained a significant proportion of variance in acorn production at both the annual and individual tree levels.”

✓ located verbatim in the source · abstract, characters 1037–1175
t0

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60
t1

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60

Title

Flowering and Flower Maturation in Valley Oak Quercus lobata

Walter D. Koenig; Ian S. Pearse; Mario B. Pesendorfer; et al. Ecology and Evolution 2026. doi:10.1002/ece3.73720

Other claims from this paper (9)
Associationobservedoriginal resultmeasured

Claim · model-written summary

Female flower maturation was the most important source of acorn production variation.

Taxon
Quercus lobataQuercus lobatat0
Organ / stage
female flowere0
Outcome
variation in female flower maturatione0

Not reportedDirection

Verbatim

e0

“Most important, however, was variation in female flower maturation”

✓ located verbatim in the source · abstract, characters 1176–1242
t0

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60
t1

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60

Title

Flowering and Flower Maturation in Valley Oak Quercus lobata

Walter D. Koenig; Ian S. Pearse; Mario B. Pesendorfer; et al. Ecology and Evolution 2026. doi:10.1002/ece3.73720

Other claims from this paper (9)
Associationobservedoriginal resultmeasured

Claim · model-written summary

Female and male flower abundance each explained between one-quarter and one-third of acorn production variance.

Taxon
Quercus lobataQuercus lobatat0
Organ / stage
female and male flowere0
Outcome
variance in acorn productione0
Value
between one‐quarter and one‐thirde0

Not reportedDirection

Verbatim

e0

“both female and male flower abundance explained between one‐quarter and one‐third of variance in acorn production”

✓ located verbatim in the source · abstract, characters 1250–1363
t0

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60
t1

“Quercus lobata”

✓ located verbatim in the source · title, characters 46–60

Title

Flowering and Flower Maturation in Valley Oak Quercus lobata

Walter D. Koenig; Ian S. Pearse; Mario B. Pesendorfer; et al. Ecology and Evolution 2026. doi:10.1002/ece3.73720

Other claims from this paper (9)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Quercus lobata exhibits maturation and female and male flower masting.

Taxon
Quercus lobataQuercus lobatae0
Outcome
flower maturation masting species, but also a female flower and male flower masting speciese0

Verbatim

e0

“Quercus lobata is not only a flower maturation masting species, but also a female flower and male flower masting species.”

✓ located verbatim in the source · abstract, characters 1365–1486

Title

Flowering and Flower Maturation in Valley Oak Quercus lobata

Walter D. Koenig; Ian S. Pearse; Mario B. Pesendorfer; et al. Ecology and Evolution 2026. doi:10.1002/ece3.73720

Other claims from this paper (9)