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Mechanismobservedoriginal resultsimulated

Claim · model-written summary

A decrease in density could account for 32.3–42.9% of the decrease in species richness under fertilization.

Taxon
alpine meadowt0
Outcome
decrease of species richnesse0
Value
32.3–42.9%e0
Qualifier
decrease in densitye0

Verbatim

t0

“a field experiment in an alpine meadow on the Tibet plateau”

✓ located after whitespace/quote normalisation · title, characters 41–100
e0

“Rarefaction showed that a decrease in density can account for 32.3–42.9% decrease of species richness”

✓ located verbatim in the source · abstract, characters 869–970

Title

Importance of assemblage-level thinning: A field experiment in an alpine meadow on the Tibet plateau

Luo Yanjiang; Qin Guanglian; Du Guozhen Journal of Vegetation Science 2006. doi:10.1658/1100-9233(2006)17[417:ioataf]2.0.co;2

Other claims from this paper (4)
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Increased density of vegetative shoots can compensate for the decrease in shoot height under grazing.

Taxon
Artemisia frigidaArtemisia frigidae0
Outcome
height of shootse1
Qualifier
increase of density of vegetative shootse1

Verbatim

e0

“The experimental plant materials Artemisia frigida”

✓ located verbatim in the source · abstract, characters 78–128
e1

“The increase of density of vegetative shoots can compensate for the decrease of height of shoots”

✓ located verbatim in the source · abstract, characters 1123–1219

Title

Changes of model of Atemisia frigida populations under the disturbance of grazing

Wang Jing; Yang Chi; Tie Wang Acta Ecologica Sinica 2006

Other claims from this paper (9)
Mechanismauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors consider the decrease in weed density to be due to increased cultivation and pest control techniques.

Taxon
weede0
Outcome
decreasee1
Qualifier
increase in cultivation and pest control techniquese1

Verbatim

e0

“the total weed density had decreased at a significant level during the last 31 years”

✓ located verbatim in the source · abstract, characters 1717–1801
e1

“It is considered that this decrease was due to the increase in cultivation and pest control techniques”

✓ located verbatim in the source · abstract, characters 1940–2042

Title

Changes of weed flora in cereal fields over the last 31 years in Van, Turkey

Reyyan Yergin Özkan; Işik Tepe Pakistan Journal of Botany 2020. doi:10.30848/pjb2020-6(41)

Other claims from this paper (12)
Mechanismauthor interpretationreview summarybasis n/a

Claim · model-written summary

Fragmentation is likely to decrease species density through local extinction and generalist invasion.

Taxon
grasslandse0
Outcome
species densitye0
Direction
declinee0
Qualifier
local extinctions and invasion by habitat generalistse0

Verbatim

e0

“Fragmentation influences remaining semi-natural grasslands such that species density is likely to decline as a result of local extinctions and invasion by habitat generalists.”

✓ located verbatim in the source · abstract, characters 931–1106

Title

Land-use history and fragmentation of traditionally managed grasslands in Scandinavia

Ove Eriksson; Sara A.O. Cousins; Hans Henrik Bruun Journal of Vegetation Science 2002. doi:10.1658/1100-9233(2002)013[0743:lhafot]2.0.co;2

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)
Mechanismhypothesisoriginal resultmeasured

Claim · model-written summary

The decrease in perennial forb and graminoid density may be due to enhanced sand accumulation.

Taxon
perennial forbs and graminoidse4
Outcome
density of perennial forbs and graminoidse4
Qualifier
enhanced sand accumulatione5

Verbatim

e4

“the density of perennial forbs and graminoids decreased with increasing shrub cover at both microsites”

✓ located verbatim in the source · abstract, characters 1073–1175
e5

“possibly because of enhanced sand accumulation”

✓ located verbatim in the source · abstract, characters 1177–1223

Title

Shrub cover regulates population dynamics of herbaceous plants at individual shrub scale on the Mongolian steppe

A. Koyama; T. Sasaki; U. Jamsran; et al. Journal of Vegetation Science 2014. doi:10.1111/jvs.12253

Other claims from this paper (8)
Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Reduced pine carbon in burned plots was associated with lower stem density rather than reduced growth.

Taxon
Aleppo pinePinus halepensise0
Outcome
Aleppo pine carbon stocke0
Qualifier
decrease in stem densitye0

Verbatim

e0

“The decrease in Aleppo pine carbon stock within burned plots was not associated with a growth reduction, but was due to a decrease in stem density.”

✓ located verbatim in the source · abstract, characters 2615–2762

Title

Fire recurrence effects on aboveground plant and soil carbon stocks in Mediterranean shrublands with Aleppo pine

John E. Herman; J. den Ouden; G.M.J. Mohren; et al. EGU General Assembly Conference Abstracts 2009

Other claims from this paper (19)
Mechanismauthor interpretationoriginal resultnegativesignificant (as stated)simulated

Claim · model-written summary

The model attributed lower Stipa importance value mainly to warming-related density loss.

Taxon
S. brevifloraStipa breviflorae0
Treatment
warminge0
Outcome
decreasing its IVe0
Qualifier
sharp decrease in the density of S. breviflorae0

Verbatim

e0

“a sharp decrease in the density of S. breviflora due to warming was the main reason for decreasing its IV in our study (P < 0.05)”

✓ located verbatim in the source · abstract, characters 1199–1328

Title

Status of Stipa breviflora as the constructive species will be lost under climate change in the temperate desert steppe in the future

Guangyi Lv; Zhanyi Wang; Na Guo; et al. Ecological Indicators 2021. doi:10.1016/j.ecolind.2021.107715

Other claims from this paper (7)
Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Excess plant litter decreased green shoot density and mass in protected meadow communities.

Taxon
meadow communitiese0
Outcome
density and mass of green shootse1
Direction
decreasee1
Qualifier
excessive accumulation of plant littere0

Verbatim

e0

“meadow communities, along with weather conditions, the considerable impact on the condition of the herbage is significantly affected by the excessive accumulation of plant litter”

✓ located verbatim in the source · abstract, characters 725–903
e1

“This leads to decrease in the density and mass of green shoots”

✓ located verbatim in the source · abstract, characters 969–1031

Title

Dynamics of aboveground phytomass in the communities of the Ob River forest-steppe and Northern Kulunda during protective regime

G. K. Zvereva Проблемы ботаники Южной Сибири и Монголии 2022. doi:10.14258/pbssm.2022017

Other claims from this paper (5)
Mechanismobservedoriginal resultnegativemeasured

Claim · model-written summary

More livestock reduced visitation through lower insect abundance.

Taxon
plante0
Treatment
increase in livestock densitye1
Outcome
visitation frequencye1
Direction
reducede1
Qualifier
decrease in insect abundancee1

Verbatim

e0

“native plant species of the region”

✓ located verbatim in the source · abstract, characters 718–752
e1

“An increase in livestock density reduced visitation frequency through a decrease in insect abundance”

✓ located verbatim in the source · abstract, characters 1660–1760

Title

Indirect effects of grazing intensity on pollinators and floral visitation

MARIANA TADEY Ecological Entomology 2015. doi:10.1111/een.12209

Other claims from this paper (7)

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