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Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Survival, fecundity and growth of large individuals tended to decrease as density increased.

Taxon
Salvia lyrataSalvia lyratat0
Treatment
increasing densitye0
Outcome
these traitse0
Direction
decreasee0
Qualifier
large individualse0

Verbatim

e0

“In large individuals these traits tended to decrease with increasing density”

✓ located verbatim in the source · abstract, characters 543–619
t0

“Salvia Lyrata”

✓ located verbatim in the source · title, characters 22–35

Title

Density-Dependence in Salvia Lyrata: Experimental Alteration of Densities of Established Plants

Ruth G. Shaw Journal of Ecology 1987. doi:10.2307/2260313

Other claims from this paper (4)
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)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Florida woody flora did not decrease in overall species density from base to tip.

Taxon
woody florae0
Outcome
overall species densitye0
Direction
does not show a decreasee0
Setting
Floridae0

Verbatim

e0

“the woody flora of Florida does not show a decrease in overall species density”

✓ located verbatim in the source · abstract, characters 376–454

Title

Species Diversity Patterns in Woody Flora on Three North American Peninsulas

Mark W. Schwartz Journal of Biogeography 1988. doi:10.2307/2845338

Other claims from this paper (5)
Observationobservedoriginal resultmeasured

Claim · model-written summary

During succession, annual density and biomass decreased.

Taxon
annualse0
Outcome
density and biomasse0
Direction
decreasee0

Verbatim

e0

“The normal course of succession was a decrease in density and biomass of annuals”

✓ located verbatim in the source · abstract, characters 665–745

Title

Effects of Shade, Litter and Root Competition on Old-Field Vegetation in South Carolina

Carl D. Monk; Frederick C. Gabrielson Bulletin of the Torrey Botanical Club 1985. doi:10.2307/2996039

Other claims from this paper (18)
Associationobservedoriginal resultmeasured

Claim · model-written summary

Tree density tended to fall with greater fire frequency.

Taxon
treese0
Treatment
frequency of firee0
Outcome
densitye0
Direction
decreasee0

Verbatim

e0

“density of non-prairie shrubs and of trees showed tendencies to decrease with increased frequency of fire”

✓ located verbatim in the source · abstract, characters 1084–1189

Title

Effects of fire frequency on oak savanna in

John R. Tester 1989

Other claims from this paper (5)
Associationobservedoriginal resultmeasured

Claim · model-written summary

Non-prairie shrub density tended to fall with greater fire frequency.

Taxon
non-prairie shrubse0
Treatment
frequency of firee0
Outcome
densitye0
Direction
decreasee0

Verbatim

e0

“density of non-prairie shrubs and of trees showed tendencies to decrease with increased frequency of fire”

✓ located verbatim in the source · abstract, characters 1084–1189

Title

Effects of fire frequency on oak savanna in

John R. Tester 1989

Other claims from this paper (5)
Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Higher density significantly decreased per-plant dry weight accumulation.

Taxon
Panicum repensPanicum repenst0
Treatment
plant densitye0
Outcome
dry weight accumulation on a per plant basise0
Direction
decreasee0

Verbatim

e0

“Increase in plant density resulted in a very significant decrease in dry weight accumulation on a per plant basis”

✓ located verbatim in the source · abstract, characters 481–594
t0

“Panicum repens”

✓ located verbatim in the source · title, characters 25–39

Title

Studies on the biology ofPanicum repensL. II. Intraspecific competition and resource‐allocation

J. P. N. R. Chandrasena; H. C. P. Peiris Tropical Pest Management 1989. doi:10.1080/09670878909371389

Other claims from this paper (8)
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Drought coincided with a 35% decline in density of clusters smaller than 5 m 2.

Taxon
woody plante2
Treatment
severe droughte1
Outcome
density of clusterse0
Direction
decreasee0
Value
35%e0
Qualifier
<5 m 2e0

Verbatim

e0

“a 35% decrease in density of clusters <5 m 2”

✓ located verbatim in the source · abstract, characters 3349–3393
e1

“During the 1941—1960 period characterized by severe drought”

✓ located verbatim in the source · abstract, characters 3138–3197
e2

“total woody plant cover”

✓ located verbatim in the source · abstract, characters 3230–3253

Title

Autogenic Succession in a Subtropical Savanna: Conversion of Grassland to Thorn Woodland

Steve Archer; Charles Scifres; C. R. Bassham; et al. Ecological Monographs 1988. doi:10.2307/1942463

Other claims from this paper (19)
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Sphagnum hummock growth decreased stem density in Vaccinium vitis-idaea.

Taxon
Vaccinium vitis-idaeaVaccinium vitis-idaeae0
Treatment
Growth of hummock-forming Sphagnum mossese0
Interactor
Sphagnum mossese0other
Outcome
stem densitye0
Direction
decreasee0

Not reportedComparator

Verbatim

e0

“Growth of hummock-forming Sphagnum mosses caused a significant increase in stem density and adventitious shoot production of Ledum palustre and Andromeda polifolia, while Vaccinium vitis-idaea showed a decrease in stem density”

✓ located verbatim in the source · abstract, characters 234–460

Title

Succession and biomass allocation as controlled by Sphagnum in an Alaskan peatland

J. O. Luken; W. D. Billings; K. M. Peterson Canadian Journal of Botany 1985. doi:10.1139/b85-207

Other claims from this paper (11)
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Burning decreased brome in mesquite-free areas.

Taxon
mesquiteProsopist0
Treatment
burninge1
Outcome
bromee1
Direction
decreasee1

Not reportedComparator

Verbatim

t0

“Mesquite Density”

✓ located verbatim in the source · title, characters 36–52
e1

“After burning, mesquite free areas had an increase in plant diversity and perennial grasses, and a decrease in brome”

✓ located verbatim in the source · abstract, characters 468–584

Title

Effects of Early Spring Burning and Mesquite Density on Plant Species Composition, Biomass, and Stem Density in Hardland Range

John Allen Ratzlaff SHAREOK (University of Oklahoma) 1987

Other claims from this paper (9)

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