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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

Shoot density showed a large decrease with stand development in both years.

Taxon
Urtica dioicaUrtica dioicat0
Outcome
shoot densitye7
Qualifier
A large decreasee7

Verbatim

t0

“Urtica dioica”

✓ located verbatim in the source · title, characters 39–52
e7

“A large decrease in shoot density occurred with stand development”

✓ located verbatim in the source · abstract, characters 474–539

Title

Shoot Growth and Mortality Patterns of Urtica dioica, a Clonal Forb

T Hara Annals of Botany 1995. doi:10.1006/anbo.1995.1092

Other claims from this paper (7)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Biomass did not increase simultaneously with density decrease in the first data set.

Taxon
Galium aparineGalium aparinet0
Outcome
Biomass increase and density decreasee0
Direction
not founde0

Verbatim

e0

“Biomass increase and density decrease was not found to take place in any of these simultaneously”

✓ located verbatim in the source · abstract, characters 534–630
t0

“Galium aparine L.”

✓ located verbatim in the source · title, characters 99–116

Title

Density‐dependent mortality, growth and size inequality in roadside populations of the annual herb Galium aparine L.

Javier G. Puntieri; Roger L. Hall Ecological Research 1996. doi:10.1007/bf02347679

Other claims from this paper (9)
Observationauthor interpretationoriginal resultnegativeprojected

Claim · model-written summary

Birch tree density was expected to decrease greatly in most damaged areas.

Outcome
Tree densitye0
Direction
decrease greatlye0

Verbatim

e0

“Tree density can be expected to decrease greatly in most of these areas”

✓ located verbatim in the source · abstract, characters 1178–1249
t0

“mountain birch”

✓ located verbatim in the source · title, characters 19–33

Title

On the recovery of mountain birch afterEpirritadamage in Finnish Lapland, with a particular emphasis on reindeer grazing

Juhani Lehtonen; Risto K. Heikkinen Ecoscience 1995. doi:10.1080/11956860.1995.11682303

Other claims from this paper (7)
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 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)
Associationauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Overgrowth of former alvar grassland decreased shoot density.

Taxon
alvar grasslande0
Outcome
shoot densitye0
Direction
decreasee0
Setting
former alvar grasslande0

Verbatim

e0

“The overgrowing of this former alvar grassland has resulted in the decrease of shoot density and thus the decrease of species richness per unit area”

✓ located verbatim in the source · abstract, characters 1061–1209

Title

Small‐scale dynamics and species richness in successional alvar plant communities

Meelis Pärtel; Martin Zobel Ecography 1995. doi:10.1111/j.1600-0587.1995.tb00121.x

Other claims from this paper (10)
Observationhypothesisoriginal resultprojected

Claim · model-written summary

Authors project Euphrasia population density will decrease under warming.

Taxon
Euphrasia frigidaEuphrasia frigidat0
Outcome
Population densitiese0
Direction
decreasee0
Qualifier
due to lower disturbance levels by frost heave and increased vegetation covere0

Verbatim

e0

“Population densities, however, are likely to decrease under elevated temperatures, due to lower disturbance levels by frost heave and increased vegetation cover.”

✓ located verbatim in the source · abstract, characters 1007–1168
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)
Mechanismhypothesisoriginal resultmeasured

Claim · model-written summary

At the fresh marsh, increased dead biomass in the absence of herbivory and in fertilized plots probably contributed to the decrease in species density.

Taxon
herbaceous plant communitiese1
Outcome
decrease in species densitye6
Qualifier
increased dead biomass in the absence of herbivory and in the fertilized plotse6
Setting
fresh marshe6

Verbatim

e1

“examine the effects of nutrient enrichment and sediment addition on herbaceous plant communities with and without vertebrate herbivory”

✓ located verbatim in the source · abstract, characters 265–399
e6

“At the fresh marsh, increased dead biomass in the absence of herbivory and in the fertilized plots probably contributed to the decrease in species density”

✓ located verbatim in the source · abstract, characters 862–1016

Title

Herbivore Effects on Plant Species Density at Varying Productivity Levels

Laura Gough; James B. Grace Ecology 1998. doi:10.2307/176778

Other claims from this paper (4)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Three named weed species decreased in density.

Taxon
Amaranthus retroflexusAmaranthus retroflexuse0
Outcome
densitye1
Direction
decreasee0

Verbatim

e0

“while others decrease (Amaranthus retroflexus, Kickxia spuria, Stellaria media)”

✓ located verbatim in the source · abstract, characters 812–891
e1

“Some species increase in density”

✓ located verbatim in the source · abstract, characters 668–700

Title

Influence à long terme du travail du sol sur la densité des levées d'adventices en situation de non désherbage

F. Dessaint; R. Chadoeuf; G. Barralis Canadian Journal of Botany 1993. doi:10.1139/b93-103

Other claims from this paper (4)

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