Refine ·

Claim type

Research area

Polarity

Statistics

More filters

Clear filters

A claim can belong to several research areas, so group counts add up to more than the total.

Ecology, evolution & diversity 464

Show all 464 →
Associationauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Higher shrub density appeared to decrease ephemeral biomass productivity and density.

Taxon
ephemerale0
Interactor
shrube0other
Outcome
biGmass productivity and densitye0
Direction
decreasee0
Qualifier
appearse0

Verbatim

e0

“Higher shrub density associated with increased elevation appears to decrease both ephemeral biGmass productivity and density”

✓ located verbatim in the source · abstract, characters 141–265

Title

Productivity and Flowering of Winter Ephemerals in Relation to Sonoran Desert Shrubs

William L. Halvorson; Duncan T. Patten The American Midland Naturalist 1975. doi:10.2307/2424164

Other claims from this paper (5)
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Small disturbances caused a marked decrease in species density.

Taxon
vascular plantsTracheophytae1
Treatment
Small disturbancese0
Outcome
species densitye0
Direction
decreasee0

Verbatim

e0

“Small disturbances cause a remarkable decrease in species density.”

✓ located verbatim in the source · abstract, characters 618–684
e1

“vascular plants”

✓ located verbatim in the source · abstract, characters 85–100

Title

High species richness in an Estonian wooded meadow

Kalevi Kull; Martin Zobel Journal of Vegetation Science 1991. doi:10.2307/3236182

Other claims from this paper (9)
Observationobservedoriginal resultmeasured

Claim · model-written summary

The two community forests showed a decrease in tree density.

Outcome
tree densitye0

Not reportedTaxon

Verbatim

e0

“decrease in tree density”

✓ located verbatim in the source · abstract, characters 1198–1222

Title

Diversité Floristique Et Structurale De Deux Forêts Communautaires Sous Exploitation Au Cameroun: Cas De Kompia Et Nkolenyeng

Kengne Olivier Clovis; Zapfack Louis; Garcia Claude; et al. European Scientific Journal ESJ 2018. doi:10.19044/esj.2018.v14n24p245

Other claims from this paper (14)

Woody plants 178

Show all 178 →
Observationobservedoriginal resultmeasured

Claim · model-written summary

The two community forests showed a decrease in tree density.

Outcome
tree densitye0

Not reportedTaxon

Verbatim

e0

“decrease in tree density”

✓ located verbatim in the source · abstract, characters 1198–1222

Title

Diversité Floristique Et Structurale De Deux Forêts Communautaires Sous Exploitation Au Cameroun: Cas De Kompia Et Nkolenyeng

Kengne Olivier Clovis; Zapfack Louis; Garcia Claude; et al. European Scientific Journal ESJ 2018. doi:10.19044/esj.2018.v14n24p245

Other claims from this paper (14)
Associationobservedoriginal resultmeasured

Claim · model-written summary

Gorse seed density did not clearly decrease with pine stand age.

Outcome
Seed-bank densitye0
Direction
did not show a clear decreasee0
Setting
pine stande0

Not reportedTaxon

Verbatim

e0

“Seed-bank density did not show a clear decrease in seed number with pine stand age”

✓ located verbatim in the source · abstract, characters 780–862

Title

Gorse seed bank variability in maritime pine stands

Maya Gonzalez; Alexis Mathieu; Laurent Augusto; et al. Seed Science Research 2009. doi:10.1017/s0960258509990237

Other claims from this paper (2)
Observationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Thirty-eight percent of the forested area had a significant decrease in tree density.

Taxon
MelaleucaMelaleucat0
Outcome
tree densitye0
Direction
decreasee0
Value
Thirty‐eight per cente0

Verbatim

e0

“Thirty‐eight per cent of the forested area suffered a significant decrease in tree density”

✓ located verbatim in the source · abstract, characters 556–646
t0

“Melaleuca forest density”

✓ located verbatim in the source · title, characters 11–35

Title

Changes in Melaleuca forest density on the Magela floodplain, Northern Territory, between 1950 and 1975

ALEXANDER R. WILLIAMS Australian Journal of Ecology 1984. doi:10.1111/j.1442-9993.1984.tb01357.x

Other claims from this paper (3)

Plant interactions & biotic stress 59

Show all 59 →
Associationauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Higher shrub density appeared to decrease ephemeral biomass productivity and density.

Taxon
ephemerale0
Interactor
shrube0other
Outcome
biGmass productivity and densitye0
Direction
decreasee0
Qualifier
appearse0

Verbatim

e0

“Higher shrub density associated with increased elevation appears to decrease both ephemeral biGmass productivity and density”

✓ located verbatim in the source · abstract, characters 141–265

Title

Productivity and Flowering of Winter Ephemerals in Relation to Sonoran Desert Shrubs

William L. Halvorson; Duncan T. Patten The American Midland Naturalist 1975. doi:10.2307/2424164

Other claims from this paper (5)
Associationhypothesisoriginal resultmeasured

Claim · model-written summary

Spotted knapweed density may not decrease significantly until the seed bank falls below a critical threshold.

Taxon
Spotted knapweede7
Outcome
densitye7
Direction
may not decrease significantlye7
Comparator
critical thresholde7

Verbatim

t0

“Spotted Knapweed”

✓ located verbatim in the source · title, characters 62–78
e7

“Spotted knapweed density may not decrease significantly until the seed bank falls below a critical threshold”

✓ located verbatim in the source · abstract, characters 1479–1587

Title

Influence of Seed Head–Attacking Biological Control Agents on Spotted Knapweed Reproductive Potential in Western Montana Over a 30-Year Period

Jim M. Story; Lincoln Smith; Janelle G. Corn; et al. Environmental Entomology 2008. doi:10.1603/0046-225x(2008)37[510:ioshbc]2.0.co;2

Other claims from this paper (11)
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Green waste mulch did not decrease grass density.

Taxon
Native Shrublandt0
Treatment
city green‐waste mulche1
Outcome
grass densitye0
Direction
did not result in decreasede0

Not reportedComparator

Verbatim

t0

“Native Shrubland”

✓ located verbatim in the source · title, characters 17–33
e0

“did not result in decreased grass density or increased native shrub establishment”

✓ located verbatim in the source · abstract, characters 850–931
e1

“The city green‐waste mulch used in this study”

✓ located verbatim in the source · abstract, characters 751–796

Title

Restoration of a Native Shrubland Impacted by Exotic Grasses, Frequent Fire, and Nitrogen Deposition in Southern California

Nancy K. Cione; Pamela E. Padgett; Edith B. Allen Restoration Ecology 2002. doi:10.1046/j.1526-100x.2002.02038.x

Other claims from this paper (11)

Physiology, metabolism & abiotic stress 55

Show all 55 →
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Defoliation was associated with decrease tiller density.

Taxon
grassese0
Treatment
Defoliatione0
Outcome
tiller densitye0
Direction
decreasee0

Not reportedComparator

Verbatim

e0

“Defoliation of the grasses did not reduce their aboveground biomass production in the wet year, but severely reduced it in the dry year, primarily because of a decrease in tiller density.”

✓ located verbatim in the source · abstract, characters 573–760

Title

Plant Responses to Defoliation and Resource Supplementation in the Pryor Mountains

Jace T. Fahnestock; James K. Detling Journal of Range Management 1999. doi:10.2307/4003689

Other claims from this paper (15)
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Higher density decreased stem density in the top layer.

Taxon
Abutilon theophrastiAbutilon theophrastit0
Organ / stage
top layere0
Outcome
stem densitye0
Direction
decreasee0

Not reportedTreatmentComparator

Verbatim

e0

“a decrease in stem density in the top layer”

✓ located verbatim in the source · abstract, characters 1024–1067
t0

“Abutilon theophrasti”

✓ located verbatim in the source · title, characters 62–82

Title

Architectural plasticity in response to population density in Abutilon theophrasti (Malvaceae)

Shu Wang; Dao‐Wei Zhou Ecological Research 2022. doi:10.1111/1440-1703.12284

Other claims from this paper (7)
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher temperatures caused a small decrease in Euphrasia population density over three seasons.

Taxon
Euphrasia frigidaEuphrasia frigidat0
Treatment
Higher temperaturese0
Outcome
population densitiese0
Direction
decreasee0
Qualifier
during three seasonse0

Not reportedComparator

Verbatim

e0

“Higher temperatures resulted in a small decrease in population densities during three seasons.”

✓ located verbatim in the source · abstract, characters 337–431
t0

“Euphrasia frigida”

✓ located verbatim in the source · title, characters 129–146

Title

Effects of Temperature and Natural Disturbance on Growth, Reproduction, and Population Density in the Alpine Annual Hemiparasite Euphrasia frigida

Jorun Nyléhn; Ørjan Totland Arctic Antarctic and Alpine Research 1999. doi:10.1080/15230430.1999.12003307

Other claims from this paper (6)

Development, reproduction & morphology 26

Show all 26 →
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Higher density decreased stem density in the top layer.

Taxon
Abutilon theophrastiAbutilon theophrastit0
Organ / stage
top layere0
Outcome
stem densitye0
Direction
decreasee0

Not reportedTreatmentComparator

Verbatim

e0

“a decrease in stem density in the top layer”

✓ located verbatim in the source · abstract, characters 1024–1067
t0

“Abutilon theophrasti”

✓ located verbatim in the source · title, characters 62–82

Title

Architectural plasticity in response to population density in Abutilon theophrasti (Malvaceae)

Shu Wang; Dao‐Wei Zhou Ecological Research 2022. doi:10.1111/1440-1703.12284

Other claims from this paper (7)
Associationauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Reduced tree density was interpreted to decrease pollen donor diversity.

Outcome
pollen donor diversitye0
Direction
decreasese0
Qualifier
reduction in tree densitye0
Setting
natural forestse1

Verbatim

t0

“Prunus verecunda (Koidz.) Koehne”

✓ located verbatim in the source · abstract, characters 360–392
e0

“a reduction in tree density decreases pollen donor diversity in P. verecunda”

✓ located verbatim in the source · abstract, characters 1291–1367
e1

“a loss of natural forests increases in embryo mortality”

✓ located verbatim in the source · abstract, characters 1225–1280

Title

Effects of converting natural forests to coniferous plantations on fruit and seed production and mating patterns in wild cherry trees

Teruyoshi Nagamitsu; Kato Shuri; Hisatomo Taki; et al. Ecological Research 2016. doi:10.1007/s11284-015-1331-x

Other claims from this paper (7)
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Flower density decreased at two sites over three years, somewhat more in warmed plots.

Treatment
warmed plotse0
Outcome
density of flowerse0
Direction
decreasee0
Qualifier
at two sites over 3 yearse0

Not reportedTaxonComparator

Verbatim

e0

“A decrease in the density of flowers on each plant was noted at two sites over 3 years, with a slightly larger decrease in the warmed plots.”

✓ located verbatim in the source · abstract, characters 580–720

Title

Response of Saxifraga oppositifolia L. to simulated climate change at three contrasting latitudes

M. STENSTRÖM; F. GUGERLI; G.H.R. HENRY Global Change Biology 1997. doi:10.1111/j.1365-2486.1997.gcb144.x

Other claims from this paper (4)

Breeding, agronomy & horticulture 14

Show all 14 →
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Management relaxation was associated with a decrease in vegetation density.

Taxon
vegetatione1
Treatment
management relaxatione1
Outcome
vegetation densitye1
Direction
decreasee1

Not reportedComparator

Verbatim

t0

“mountain grasslands”

✓ located verbatim in the source · title, characters 69–88
e1

“A higher butterfly abundance and species richness following management relaxation was mostly driven by a decrease in vegetation density and an increase in forb cover.”

✓ located verbatim in the source · abstract, characters 1208–1374

Title

Relaxation of management intensity promotes butterfly communities in mountain grasslands

Isabelle Arnold; Gaëtan Marchand; Aline Hayoz-Andrey; et al. Biological Conservation 2025. doi:10.1016/j.biocon.2025.111027

Other claims from this paper (2)
Associationobservedoriginal resultmeasured

Claim · model-written summary

Per-plant productivity decreased as density increased in each weed species.

Treatment
densitye0
Outcome
productivity per plante0
Direction
decreasee0

Verbatim

e0

“each weed species by its decrease in productivity per plant as its density increased”

✓ located verbatim in the source · abstract, characters 749–833
t0

“IN WHEAT”

✓ located verbatim in the source · title, characters 55–63

Title

COMPETITION OF SAPONARIA VACCARIA AND SINAPIS ARVENSIS IN WHEAT

J. F. ALEX Canadian Journal of Plant Science 1970. doi:10.4141/cjps70-072

Other claims from this paper (8)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Seed density decreased another 31% during regeneration.

Taxon
Trifolium balansaeTrifolium balansaet0
Outcome
seed densitye0
Direction
decreasee0
Value
31%e0
Qualifier
during regeneratione0

Verbatim

e0

“Another 31% decrease in seed density occurred during regeneration.”

✓ located verbatim in the source · abstract, characters 555–621
t0

“Trifolium balansae”

✓ located verbatim in the source · title, characters 23–41

Title

Population Dynamics of Trifolium balansae and T. resupinatum in Self- Regenerating Pasture. I. Seed and Plant Densities and Dry Matter Yield

P. I. Jansen; R. L. Ison Journal of Applied Ecology 1996. doi:10.2307/2404766

Other claims from this paper (11)

Molecular genetics & genomics 2

Show all 2 →
Observationobservedoriginal resultmeasured

Claim · model-written summary

Lineage-specific alleles that decrease trichome density persist in natural populations.

Taxon
Arabidopsis thalianaArabidopsis thalianat0
Material
lineage-specific allelese0
Outcome
trichome densitye0
Direction
decreasee0

Verbatim

e0

“many lineage-specific alleles that either increase or decrease trichome density persist in natural populations”

✓ located verbatim in the source · abstract, characters 1046–1156
t0

“Arabidopsis thaliana”

✓ located verbatim in the source · title, characters 59–79

Title

Mapping Quantitative Trait Loci in Multiple Populations of Arabidopsis thaliana Identifies Natural Allelic Variation for Trichome Density

V Vaughan Symonds; A Veronica Godoy; Teresa Alconada; et al. Genetics 2005. doi:10.1534/genetics.104.031948

Other claims from this paper (5)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Lineage-specific alleles that increase trichome density persist in natural populations.

Taxon
Arabidopsis thalianaArabidopsis thalianat0
Material
lineage-specific allelese0
Outcome
trichome densitye0
Direction
increasee0

Verbatim

e0

“many lineage-specific alleles that either increase or decrease trichome density persist in natural populations”

✓ located verbatim in the source · abstract, characters 1046–1156
t0

“Arabidopsis thaliana”

✓ located verbatim in the source · title, characters 59–79

Title

Mapping Quantitative Trait Loci in Multiple Populations of Arabidopsis thaliana Identifies Natural Allelic Variation for Trichome Density

V Vaughan Symonds; A Veronica Godoy; Teresa Alconada; et al. Genetics 2005. doi:10.1534/genetics.104.031948

Other claims from this paper (5)

Methods & resources 1

Show all 1 →
Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Trait-based clustering identified functional groups capturing regional species diversity.

Outcome
functional groups that capture the ecological diversity of the region’s species poole0

Not reportedTaxonComparatorValue

Verbatim

e0

“Using hierarchical clustering based on key functional traits—leaf nitrogen, specific leaf area, seed mass, and wood density—we identified functional groups that capture the ecological diversity of the region’s species pool (present and potential).”

✓ located verbatim in the source · abstract, characters 465–712

Title

A functional approach to increase diversity and decrease risk in managed forests: The case of the Monteregian forest, Canada

Alain Paquette; Michaël Belluau; Maria Raquel Kanieski; et al. The Forestry Chronicle 2026. doi:10.5558/tfc2026-016

Other claims from this paper (3)

Lexical search (BM25). All words must match; if nothing does, any word. Organism names also match every spelling of the same organism. No semantic search yet.