Search claims · PlantClaims

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

About 2.6 percent of red brome seeds remained viable after two years of burial.

Taxon: red bromeBromus rubense0
Treatment: buriale3
Outcome: seeds remained viablee3
Direction: decreaseinferrede3
Value: 2.6 percente3
Qualifier: after two yearse3

Not reportedComparator

Verbatim

e0
“This research explores several untested aspects of the seed bank characteristics of red brome (Bromus rubens), an invasive annual grass in southwestern United States arid lands”
✓ located verbatim in the source · abstract, characters 0–176

e3
“and 2.6 percent of seeds remained viable after two years of burial”
✓ located verbatim in the source · abstract, characters 903–969

Title

Exploring the Seed Bank Dynamics of Red Brome: Longevity, Density, and Relationship to Fire

Jurand, Benjamin S. Digital Scholarship - UNLV (University of Nevada Reno) 2020. doi:10.34917/4332564

Other claims from this paper (9)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Root hair length decreased with a wider annual temperature range.

Taxon: herbaceous and woody plantse0
Treatment: a wider annual temperature rangee1
Outcome: root hair lengthe1
Direction: decreaseinferrede1

Verbatim

e0
“the characteristics of the root hairs of herbaceous and woody plants”
✓ located verbatim in the source · abstract, characters 191–259

e1
“Root hair length increased significantly, while root hair density decreased significantly, with higher mean annual temperature and greater precipitation seasonality, while the opposite pattern was true for a wider annual temperature range”
✓ located verbatim in the source · abstract, characters 1721–1959

Title

Morphological responses of root hairs to changes in soil and climate depend on plant life form

Yingtong Zhou; Cunguo Wang; Qinrong Tang; et al. Frontiers in Forests and Global Change 2024. doi:10.3389/ffgc.2024.1324405

Other claims from this paper (15)

Association Root hairs of woody plants were longer, denser and thicker than those of herbaceous plants.
Association Root hair length and diameter in herbaceous plants increased with genome size.
Association With increasing plant age, woody plants had significantly longer root hairs.
Association With increasing plant age, root hair density and diameter declined significantly in herbaceous plants.
Intervention effect Soil-cultured plants had longer root hairs than solution-cultured plants.
Intervention effect Greenhouse-cultured plants had greater root hair length and density than field-grown plants.
Intervention effect Field-grown plants had thicker root hairs than greenhouse-cultured plants.
Association Root hair length in woody plants increased with soil pH.
Association Root hair diameter in woody plants decreased with soil pH.
Association Root hair density in herbaceous plants increased with soil pH.
Association Increased soil total nitrogen and potassium significantly increased root hair length, density and diameter in herbaceous plants.
Association Soil total N significantly decreased root hair density in woody plants.
Association Root hair length increased with higher mean annual temperature and greater precipitation seasonality.
Association Root hair density decreased with higher mean annual temperature and greater precipitation seasonality.
Association Root hair density increased with a wider annual temperature range.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Woody cover increased in calcareous glade habitats between the 1993 baseline and the 2006 and 2008 resampling.

Taxon: woody covere0
Outcome: woody covere0
Direction: increasee0
Setting: calcareous glade habitatse1

Verbatim

e0
“The resampling results show an increase in woody cover and a correlated decrease in density of herbaceous plants characteristic of this habitat”
✓ located verbatim in the source · abstract, characters 181–324

e1
“Baseline vegetation monitoring transects were established in calcareous glade habitats in 1993 at Chickamauga and Chattanooga National Military Park and resampled in 2006 and 2008”
✓ located verbatim in the source · abstract, characters 0–179

Title

Resampling Issues Associated with Calcareous Glade Monitoring Transects Established in 1993

Robert D. Sutter; Thomas E. Govus; Regan Lyons Smyth; et al. Natural Areas Journal 2011. doi:10.3375/043.031.0210

Other claims from this paper (1)

Association Density of herbaceous plants characteristic of calcareous glades decreased in correlation with the increase in woody cover.

Associationobservedoriginal resultsimulated

Claim · model-written summary

Coefficient A increased abruptly to a maximum with biological time in Populus deltoides.

Taxon: Populus deltoidesPopulus deltoidest0
Organ / stage: growth stagee0
Outcome: coefficient Ae0
Direction: increased abruptlye0

Verbatim

e0
“With increasing τ, the coefficient A, the reciprocal of which means the asymptote of yield (=wρ) at a given growth stage, increased abruptly to a maximum value and then tended to decrease gradually to a constant level”
✓ located verbatim in the source · abstract, characters 925–1142

t0
“Populus deltoides”
✓ located verbatim in the source · title, characters 71–88

Title

Growth analysis of the competition–density effect in non-self-thinning Populus deltoides and Populus × euramericana plantations

Li Xue; Akio Hagihara Journal of Forest Research 2008. doi:10.1007/s10310-008-0070-z

Other claims from this paper (16)

Associationobservedoriginal resultsimulated

Claim · model-written summary

Coefficient A increased abruptly to a maximum with biological time in Populus × euramericana.

Taxon: Populus × euramericanaPopulus ×canadensist0
Organ / stage: growth stagee0
Outcome: coefficient Ae0
Direction: increased abruptlye0

Verbatim

e0
“With increasing τ, the coefficient A, the reciprocal of which means the asymptote of yield (=wρ) at a given growth stage, increased abruptly to a maximum value and then tended to decrease gradually to a constant level”
✓ located verbatim in the source · abstract, characters 925–1142

t0
“Populus × euramericana”
✓ located verbatim in the source · title, characters 93–115

Title

Growth analysis of the competition–density effect in non-self-thinning Populus deltoides and Populus × euramericana plantations

Li Xue; Akio Hagihara Journal of Forest Research 2008. doi:10.1007/s10310-008-0070-z

Other claims from this paper (16)

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Pappus area was judged a poor estimator of its effective drag-producing area.

Taxon: Tragopogon dubious (L.)t0
Organ / stage: pappuse0
Outcome: not a good estimator of its ability to produce drage0
Qualifier: radial morphology of the pappuse1

Verbatim

t0
“Tragopogon dubious (L.)”
✓ located verbatim in the source · title, characters 42–65

e0
“the area of the pappus is not a good estimator of its ability to produce drag (its effective area)”
✓ located verbatim in the source · abstract, characters 887–985

e1
“because the radial morphology of the pappus causes the density of drag producing cross hairs to decrease along the length of the pappus ray”
✓ located verbatim in the source · abstract, characters 1007–1146

Title

Fruit Morphology and Terminal Velocity in Tragopogon dubious (L.)

M. A. McGinley; E. J. Brigham Functional Ecology 1989. doi:10.2307/2389623

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Plant richness and diversity rose for four years, peaked near year five, then fell at nearly all sites.

Taxon: native prairiee1
Outcome: plant species richness and Shannon–Wiener diversitye0
Direction: increasee0
Qualifier: except for one site by treatment combination near a foreste0

Verbatim

e0
“All treatments at all sites, except for one site by treatment combination near a forest, showed an increase in plant species richness and Shannon–Wiener diversity in the first four years of reclamation, a peak around 5 years, and subsequent decrease”
✓ located verbatim in the source · abstract, characters 774–1023

e1
“native prairie planted at light density”
✓ located verbatim in the source · abstract, characters 561–600

Title

Diversity Is Not Everything

Drew A. Scott; Kathryn D. Eckhoff; Nicola Lorenz; et al. Land 2021. doi:10.3390/land10101091

Other claims from this paper (9)

Observation All treatments met vegetation coverage goals within two years.
Observation Richness and diversity differed little among treatments.
Intervention effect Native mixes diverged increasingly from the traditional mix in community structure.
Intervention effect Native treatments moved toward native prairie grassland while traditional mixes remained nonnative dominated.
Intervention effect Native treatments increased microbial biomass and fungi:bacteria ratio more than traditional mix.
Observation Soil organic carbon increased over time for all seed mixes.
Observation Exchangeable base cations and phosphorus decreased over time across mixes.
Observation Native grassland species established despite traditional species in native mix.
Recommendation Authors recommended native prairie mixes for reclamation.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Increasing stress was associated with a greater share of older plants.

Taxon: plantsViridiplantaee0
Treatment: stress factorse0
Outcome: share of plants of older agese0
Direction: increasede0

Verbatim

e0
“As the stress factors increased, the species and populations underwent the following transformations: decline in the level of productive process, with decrease in the size of phytomass of individuals – diminution of plant size; their reproductive potential; reduced population density; changes in the age composition of populations, where the share of plants of older ages increased”
✓ located verbatim in the source · abstract, characters 2308–2690

Title

Peculiarities of the formation of phytocoenotic ranges of vegetatively propagated herbs and shrubs in forest plant groups of the Ukrainian Polissia

І. Kovalenko; H. Klymenko; N. Kovalenko; et al. Biosystems Diversity 2025. doi:10.15421/012516

Other claims from this paper (12)

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Declines in aboveground vegetation were positively correlated with decreases in soil carbon and nitrogen indicators.

Taxon: foreste1
Organ / stage: Aboveground vegetatione2
Outcome: soil carbon and nitrogen indicatorse2
Direction: positively correlatede2

Verbatim

e1
“forest degradation markedly decreased aboveground biomass (−132%), basal area (−91%), stand density (−58%), plant diversity (−36%, −14%, and − 40% for Shannon-Wiener diversity index, Pilou evenness index, and species richness), reduced soil organic carbon (−34%), total nitrogen (−34%), microbial biomass carbon (−47%) and microbial biomass nitrogen (−60%)”
✓ located verbatim in the source · abstract, characters 490–846

e2
“Aboveground vegetation declines were significantly and positively correlated with the decrease in soil carbon and nitrogen indicators”
✓ located verbatim in the source · abstract, characters 990–1123

Title

Feedbacks between vegetation and soil in global Forest degradation: a meta-analysis

Huawei Wu; Xuekun Cheng; Yufeng Zhou; et al. Ecological Indicators 2026. doi:10.1016/j.ecolind.2026.114738

Other claims from this paper (12)

Intervention effect Forest degradation decreased aboveground biomass by 132%.
Intervention effect Forest degradation decreased basal area by 91%.
Intervention effect Forest degradation decreased stand density by 58%.
Intervention effect Forest degradation decreased the Shannon-Wiener diversity index by 36%.
Intervention effect Forest degradation decreased the Pilou evenness index by 14%.
Intervention effect Forest degradation decreased species richness by 40%.
Intervention effect Forest degradation reduced soil organic carbon by 34%.
Intervention effect Forest degradation reduced total soil nitrogen by 34%.
Intervention effect Forest degradation reduced microbial biomass carbon by 47%.
Intervention effect Forest degradation reduced microbial biomass nitrogen by 60%.
Observation Forest degradation had significant negative effects in all disturbance types.
Observation Agricultural expansion was associated with the most pronounced negative impacts of forest degradation.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Number of pregenerative individuals of Bartsia alpina increased on Mt. Rebra with overgrowth by highdensity plants and shrubs

Taxon: Bartsia alpinaBartsia alpinae0
Treatment: overgrowth of the habitat by highdensity plants and shrub speciese1
Outcome: number of pregenerative individualse0
Direction: increasee0
Setting: Mt. Rebrae0

Verbatim

e0
“An increase in ontogenesis polyvariability, density of individuals, recovery index, number of pregenerative individuals and decrease in number of generative individuals are observed in Bartsia alpina population on Mt. Rebra”
✓ located verbatim in the source · abstract, characters 1914–2137

e1
“due to overgrowth of the habitat by highdensity plants and shrub species”
✓ located verbatim in the source · abstract, characters 2138–2210

Title

Changes in vitality of populations of rare arctic-alpine plant species in high mountain part of the Ukrainian Carpathians under the influence of climatic factors

R. M. Cherepanyn Studia Biologica 2019. doi:10.30970/sbi.1301.582

Other claims from this paper (15)

“decrease in density”

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Over time

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