Search claims · PlantClaims

Associationobservedoriginal resultmeasured

Claim · model-written summary

Seven other weed species had absolute density greater than parthenium

Taxon: weed speciese7
Outcome: absolute densitye6
Direction: greater thane6
Comparator: partheniume6

Verbatim

e7
“Only 7 weed species”
✓ located verbatim in the source · abstract, characters 732–751

e6
“showed absolute density greater than parthenium”
✓ located verbatim in the source · abstract, characters 982–1029

Title

PREVALENCE OF INVASIVE PARTHENIUM WEED IN DISTRICT HAFIZABAD, PAKISTAN

Tabinda Riaz; Arshad Javaid The Journal of Animal and Plant Sciences 2010

Other claims from this paper (7)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Absolute tree mortality was density dependent.

Taxon: woodlandst0
Outcome: Absolute mortality rate of treese0
Qualifier: density‐dependente0
Setting: Zambezit0

Not reportedDirection

Verbatim

e0
“Absolute mortality rate of trees was density‐dependent”
✓ located verbatim in the source · abstract, characters 379–433

t0
“Zambezi riparian woodlands”
✓ located verbatim in the source · title, characters 21–47

Title

Long‐term changes in Zambezi riparian woodlands, as revealed by photopanoramas

KEVIN M. DUNHAM African Journal of Ecology 1989. doi:10.1111/j.1365-2028.1989.tb01019.x

Other claims from this paper (6)

Observation The Acacia tree population declined with low recruitment.
Observation Canopy trees were lost at a mean rate of 0–9% per year.
Association Tree mortality did not vary with elephant density over time.
Observation Dead-grass ground cover was almost continuous at the end of the 1961 dry season.
Observation Dry-season ground cover was much lower by the 1980s.
Observation Macrotermes mound density increased after 1958.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Absolute cover and density fluctuated greatly for most species.

Taxon: speciese0
Outcome: absolute cover and densitye0
Direction: large fluctuationse0

Verbatim

e0
“despite large fluctuations in absolute cover and density of most species”
✓ located verbatim in the source · abstract, characters 746–818

Title

Vegetation Change and Plant Demography in Permanent Plots in the Sonoran Desert

Deborah E. Goldberg; Raymond M. Turner Ecology 1986. doi:10.2307/1937693

Other claims from this paper (11)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Allophylus edulis had the highest absolute density of 5186 ind.ha-1.

Taxon: Allophylus edulisAllophylus edulise0
Outcome: absolute densitye0
Direction: higheste0
Value: 5186 ind.ha-1e0

Verbatim

e0
“Allophylus edulis had the highest values of absolute frequency (63.3) and absolute density (5186 ind.ha-1)”
✓ located verbatim in the source · abstract, characters 606–712

Title

Natural Regeneration in a Conservation Unit: Subsidy for Restoration Actions

Ana Paula Moreira Rovedder; Roselene Marostega Felker; Rafaela Badinelli Hummel; et al. Floresta e Ambiente 2018. doi:10.1590/2179-8087.082117

Other claims from this paper (5)

Observation The plots contained 3021 individuals from 26 families and 51 species.
Observation Forest regeneration had Shannon diversity 2.78 and Pielou evenness 0.66.
Observation Allophylus edulis had the highest absolute frequency of 63.3.
Observation Ligustrum lucidum showed greater dissimilarity.
Observation The analysis indicated regeneration mechanisms and a biological invasion problem.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Parthenium was among the densely populated weed species, with absolute density of 1.55

Taxon: PartheniumPartheniume5
Outcome: absolute densitye5
Value: 1.55e5

Verbatim

e5
“Parthenium was found among the densely populated weed species with absolute density of 1.55”
✓ located verbatim in the source · abstract, characters 639–730

Title

PREVALENCE OF INVASIVE PARTHENIUM WEED IN DISTRICT HAFIZABAD, PAKISTAN

Tabinda Riaz; Arshad Javaid The Journal of Animal and Plant Sciences 2010

Other claims from this paper (7)

Observation Parthenium was present in nine of ten surveyed sites, with 90% prevalence
Observation Parthenium had an absolute frequency of occurrence of 51%
Observation A total of 67 weed species from 25 angiospermic families were found growing in the district
Observation Only 14 of 67 weed species reached an absolute frequency of 50% or above, including parthenium
Association Seven other weed species had absolute density greater than parthenium
Observation Parthenium is rapidly colonizing waste lands of district Hafizabad
Recommendation Urgent efforts are needed to control the further spread of parthenium

Observationobservedoriginal resultmeasured

Claim · model-written summary

Twenty species comprised over 80% of forest absolute density.

Taxon: plant speciese0
Outcome: absolute density of the foreste0
Value: more than 80%e0

Verbatim

e0
“Twenty plant species alone constituted more than 80% of the absolute density of the forest”
✓ located verbatim in the source · abstract, characters 749–839

Title

Floristic Diversity and Composition of Sheko Forest, Southwest Ethiopia

F Senbeta; T Woldemariam; S Demissew; et al. Ethiopian Journal of Biological Sciences 2009. doi:10.4314/ejbs.v6i1.39038

Other claims from this paper (16)

Observation The survey recorded 374 plant species, 256 genera and 91 families.
Observation Mean species richness was 45 species per 400 m2.
Observation The maximum species count per plot was 74.
Observation Shannon diversity index was 2.83.
Observation Forest evenness was 0.54.
Observation Orchidaceae had the most species, 28.
Observation Rubiaceae had 26 species.
Observation Euphorbiaceae had 19 species.
Observation Moraceae had 18 species.
Observation Acanthaceae had 16 species.
Observation The sampled plots contained 24,321 woody plant individuals, equivalent to 16,433 per ha.
Observation Three of those species had importance values above 20%.
Observation Six timber tree species showed inverted J-shaped, J-shaped and bell-shaped diameter distributions.
Observation Cluster analysis recognized three plant communities.
Observation Sheko forest had low floristic similarity to other Ethiopian forests.
Observation The authors interpret high diversity as indicating botanical uniqueness and conservation value.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Absolute density was reported as 934.19 564.88 stems per hectare.

Taxon: Mangrove Vegetationt0
Outcome: absolute densitye0
Value: 934.19 564.88 stem ha -1e0

Verbatim

e0
“absolute density was 934.19 564.88 stem ha -1”
✓ located verbatim in the source · abstract, characters 694–739

t0
“Mangrove Vegetation”
✓ located verbatim in the source · title, characters 24–43

Title

Diversity Shifts in the Mangrove Vegetation of the Rio del ReyEstuary (Cameroon)

Guillaume Lopold Essom-Koum; Vanessa Ngo-Massou; Ernest Flavien Kott-Mapoko; et al. International journal of research studies in biosciences 2017. doi:10.20431/2349-0365.0504002

Other claims from this paper (11)

Observation All characteristic African Atlantic mangrove species were present.
Observation Rhizophora predominated.
Observation Floristic diversity was low and varied by locality.
Observation Shannon diversity ranged from 0.34 to 1.91.
Observation Margalef richness ranged from 1.08 to 4.45.
Observation Mean diameter was reported as 20.38 18.79 cm.
Observation Tree height ranged from 3.82 to 37 m.
Observation Basal area was reported as 1.54 0.99 square metres per hectare.
Observation Diameter class distributions often indicated disturbed stands.
Observation Plots differed in the Newman-Keuls test.
Association Sampling unit size, stand evolution, Nypa invasion and human activity significantly affected stand characteristics.

Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommend absolute measures such as density for vegetation monitoring.

Outcome: absolute measures, such as densitye0
Comparator: estimatese0

Not reportedTaxon

Verbatim

e0
“absolute measures, such as density, should be employed rather than estimates, especially with regard to plant cover.”
✓ located verbatim in the source · abstract, characters 1036–1152

Title

Use of an area-based survey technique to detect vegetation changes in Sour Bushveld

M.D. Panagos; B.K. Reilly Koedoe 2006. doi:10.4102/koedoe.v49i1.105

Other claims from this paper (5)

Observation Woody vegetation in two communities showed successional progression over time.
Observation Plant species richness increased at all six resurveyed sites.
Observation At one site, total plant species rose from 17 in 1996 to 34 in 2001.
Observation At another site, total plant species rose from 26 in 1996 to 45 in 2001.
Method / resource Area-based sampling detected change in species composition.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Parthenium had an absolute density of 19.4.

Taxon: PartheniumPartheniume0
Outcome: absolute density (AD)e0
Direction: most densely populatede0
Value: 19.4e0

Verbatim

e0
“Parthenium was also the most densely populated weed in the area exhibitingan absolute density (AD) of 19.4 and relative density (RD) of 0.67%.”
✓ located verbatim in the source · abstract, characters 625–767

Title

Prevalence of alien weed Parthenium hysterophorus L. in grazing and wastelands of district Attock, Pakistan.

Tabinda Riaz; Arshad Javaid The Journal of Animal and Plant Sciences 2011

Other claims from this paper (7)

Observation The survey found 58 weed species in 25 angiosperm families.
Observation Fourteen weed species including parthenium occurred at all nine surveyed sites.
Observation Parthenium was the most frequent species, with 60% absolute frequency and 4.52% relative frequency.
Observation Parthenium had 4.52% relative frequency.
Observation Parthenium had 0.67% relative density.
Observation Achyranthes asper was second in frequency and density.
Recommendation The authors urge measures to prevent further Parthenium spread.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Meloidogyne incognita absolute density was around 87.60%

Taxon: tomatoSolanum lycopersicume7
Interactor: M. incognitaMeloidogyne incognitae4pest
Outcome: absolute densitye4
Value: 87.60%e4

Verbatim

e7
“associated with the vegetable crop tomato in Chittoor District of Andhra Pradesh”
✓ located verbatim in the source · abstract, characters 123–203

e4
“M. incognita absolute frequency in tomato was 100% and absolute density is around 87.60%”
✓ located verbatim in the source · abstract, characters 763–851

Title

Phytonematode Diversity in Tomato Crops of Chittoor District, Andhra Pradesh, India: A Comprehensive Survey, Distribution, and Community Analysis

G. Rushi; P. Arunasri; K. Gopal; et al. International Journal of Environment and Climate Change 2023. doi:10.9734/ijecc/2023/v13i92687

Other claims from this paper (9)

“absolute density”

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