Search claims · PlantClaims

Observationobservedoriginal resultsimulated

Claim · model-written summary

Simulated total population growth tended to be exponential.

Taxon: Plantt0
Outcome: Rates of total population growthe0
Direction: exponentiale0

Verbatim

e0
“Rates of total population growth tended to be exponential”
✓ located verbatim in the source · abstract, characters 586–643

t0
“Plant Population”
✓ located verbatim in the source · title, characters 23–39

Title

A Model of a Spreading Plant Population

B. A. Auld; B. G. Coote Oikos 1980. doi:10.2307/3544288

Other claims from this paper (2)

Associationobservedoriginal resultno effectsimulated

Claim · model-written summary

Integral projection model analyses showed no relationship between population size and population growth rate.

Taxon: Phyteuma spicatumPhyteuma spicatume0
Treatment: population sizee1
Outcome: population growth ratee1
Direction: no relationshipe1

Verbatim

e0
“in the perennial plant Phyteuma spicatum”
✓ located verbatim in the source · abstract, characters 392–432

e1
“Analyses with integral projection models, however, showed no relationship between population size and population growth rate”
✓ located verbatim in the source · abstract, characters 589–713

Title

Population size affects vital rates but not population growth rate of a perennial plant

Annette Kolb; Johan P. Dahlgren; Johan Ehrlén Ecology 2010. doi:10.1890/09-2207.1

Other claims from this paper (5)

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Population allelic richness correlated positively with relative population growth.

Taxon: Succisa pratensisSuccisa pratensist0
Material: populatione0
Outcome: relative population growthe0
Direction: positively correlatede0

Verbatim

e0
“population allelic richness was strongly positively correlated to relative population growth”
✓ located verbatim in the source · abstract, characters 1337–1429

t0
“Succisa pratensis”
✓ located verbatim in the source · title, characters 141–158

Title

The role of genetic diversity and arbuscular mycorrhizal fungal diversity in population recovery of the semi-natural grassland plant species Succisa pratensis

Maarten Van Geel; Tsipe Aavik; Tobias Ceulemans; et al. BMC Ecology and Evolution 2021. doi:10.1186/s12862-021-01928-0

Other claims from this paper (2)

Associationobservedoriginal resultmixedsimulated

Claim · model-written summary

The effect of virus on population growth rate depended on virus species and population.

Taxon: C. pepoCucurbita pepoe0
Treatment: viruse0
Outcome: population growth ratee0
Qualifier: virus species and wild C. pepo populatione0

Not reportedDirection

Verbatim

e0
“The effect of virus on population growth rate depended on virus species and wild C. pepo population”
✓ located verbatim in the source · abstract, characters 853–952

Title

Effects of virus on plant fecundity and population dynamics

Holly R. Prendeville; Brigitte Tenhumberg; Diana Pilson New Phytologist 2014. doi:10.1111/nph.12730

Other claims from this paper (4)

Intervention effect Virus did not reduce fruit number.
Association Population growth rates varied among virus treatments and wild populations.
Association Contributions of life-history transitions and traits to population growth rates varied among populations and virus treatments.
Observation The population-virus interaction was not evident for individual fitness components.

Associationobservedoriginal resultsimulated

Claim · model-written summary

Population growth under annual burning was negatively associated with growth under unburned conditions.

Taxon: woody plantst0
Outcome: population growth under annual burninge0
Direction: negative relationshipe0
Comparator: population growth under unburned conditionse0

Verbatim

e0
“there was a negative relationship between population growth under annual burning and population growth under unburned conditions”
✓ located verbatim in the source · abstract, characters 753–881

t0
“WOODY PLANTS”
✓ located verbatim in the source · title, characters 32–44

Title

FIRE AND POPULATION DYNAMICS OF WOODY PLANTS IN A NEOTROPICAL SAVANNA: MATRIX MODEL PROJECTIONS

William A. Hoffmann Ecology 1999. doi:10.1890/0012-9658(1999)080[1354:fapdow]2.0.co;2

Other claims from this paper (18)

Observation Four of five woody species are projected to decline under frequent burning.
Observation The same four woody species are projected to increase under infrequent burning.
Observation Fire intervals of 2–9 years are required for long-term persistence of those four species.
Observation The fifth shrub species was nearly unaffected by burning.
Observation Woody plants performed best at low fire frequency.
Observation Herbaceous plants performed best at high fire frequency.
Intervention effect Fire stimulated vegetative propagation in three species.
Intervention effect Fire reduced sexual reproduction in those three species.
Observation Vegetative propagation contributed more than sexual reproduction to population maintenance.
Observation Vegetative propagation was relatively more important with frequent burning.
Observation Stasis and progression contributed more to population growth than either reproductive mode.
Observation Fire effects on sexual reproduction contributed little to overall population growth effects.
Observation Fire mortality had little population growth effect except in Miconia albicans.
Observation Fire reduction of individual size made the greatest contribution to negative population growth.
Observation Size effects were greater for trees than shrubs.
Association Growth form was the primary determinant of fire response.
Observation Current fire regimes are projected to reduce woody plant density.
Observation Current fire regimes are projected to favor smaller life forms and clonal species.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Population growth rate was very low.

Taxon: Populus wulianensisPopulus wulianensist0
Outcome: population growth ratee0
Direction: very lowe0

Verbatim

e0
“The population growth rate was very low.”
✓ located verbatim in the source · abstract, characters 1407–1447

t0
“Populus wulianensis”
✓ located verbatim in the source · title, characters 48–67

Title

Population structure and dynamics of endangered Populus wulianensis

吴其超，臧凤岐，李呈呈，马燕，高燕，郑勇奇，臧德奎 WU Qichao Acta Ecologica Sinica 2021. doi:10.5846/stxb202005291400

Other claims from this paper (14)

Observation The population age structure was pyramidal, with a wide base and narrow top.
Observation The survival curve resembled Deevey-Ⅲ type.
Observation Young individuals were abundant but survived at an extremely low rate.
Observation Young individuals had extremely low survival.
Observation Mortality and disappearance curves followed a decrease-increase-decrease-increase pattern.
Observation Mortality was highest in age class Ⅰ.
Observation Population viability was extremely low throughout the life cycle.
Observation Population survival fell sharply early and declined in middle and late stages.
Observation The population dynamics index suggested an increasing population.
Observation Population stability was poor and resistance to disturbance weak.
Observation Population age structure showed a fundamental wave and significant small periodic fluctuations.
Mechanism Reproduction strategy, limited space, and resources constrained population growth.
Recommendation The authors recommend in situ conservation.
Recommendation The authors recommend importing seedlings to avert loss of resistance and genetic diversity after asexual reproduction.

Associationobservedoriginal resultsimulated

Claim · model-written summary

Across eight species, population growth under annual burning was negatively related to growth without burning.

Taxon: speciese0
Outcome: population growth under annual burninge0
Direction: negativee0
Comparator: population growth under unburned conditionse0

Verbatim

e0
“Among the eight species, there was a negative relationship between population growth under annual burning and population growth under unburned conditions.”
✓ located verbatim in the source · abstract, characters 728–882

Title

Fire and Population Dynamics of Woody Plants in a Neotropical Savanna: Matrix Model Projections

William A. Hoffmann Ecology 1999. doi:10.2307/177080

Other claims from this paper (19)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Population growth rates differed by species and site.

Outcome: Population growth ratese0
Direction: differede0
Setting: sitese0

Not reportedTaxon

Verbatim

e0
“Population growth rates differed only by species and sites.”
✓ located verbatim in the source · abstract, characters 2027–2086

Title

Demography and individual growth of two introduced Bromus species

Rabie, Paul A. Washington State University 2010. doi:10.7273/000006007

Other claims from this paper (14)

Intervention effect Smaller pots, less water, and less nutrient addition reduced maximum size in both species.
Intervention effect The three restrictive conditions decreased growth rates.
Intervention effect The three restrictive conditions delayed most rapid growth.
Intervention effect Limited soil volume or low nutrients increased root to shoot ratios.
Observation B. tectorum allocated more biomass to roots than B. briziformis in every treatment.
Intervention effect Neither species changed root allocation with water availability.
Observation B. tectorum population growth was 2 to 3.5 times that of B. briziformis.
Observation B. tectorum plants were larger than B. briziformis.
Observation B. tectorum had lower leaf nitrogen than B. briziformis.
Observation B. tectorum produced nearly three times as many seeds as B. briziformis.
Intervention effect Fertilization increased plant size at one site.
Intervention effect Fertilization increased seed production at one site.
Intervention effect Watered plants were more depleted in 13C at one site.
Intervention effect Fertilizer and water treatments did not change population growth rates.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Population growth rates decreased as population size increased, with substantial asynchrony.

Taxon: vascular epiphytest0
Outcome: population growth ratese0
Direction: decreasede0
Comparator: population sizee0

Verbatim

e0
“population growth rates decreased with increasing population size with substantial asynchrony among populations”
✓ located verbatim in the source · abstract, characters 1528–1639

t0
“vascular epiphytes”
✓ located verbatim in the source · title, characters 32–50

Title

Long‐term community dynamics in vascular epiphytes on Annona glabra along the shoreline of Barro Colorado Island, Panama

Helena J. R. Einzmann; Letizia Weichgrebe; Gerhard Zotz Journal of Ecology 2021. doi:10.1111/1365-2745.13618

Other claims from this paper (10)

Associationobservedoriginal resultsimulated

Claim · model-written summary

Competition reduced A. globosum population growth.

Taxon: Arceuthobium globosumArceuthobium globosume0
Outcome: Population growthe0
Direction: reducede0
Comparator: competitione0

Verbatim

e0
“Population growth in Arceuthobium globosum was reduced by competition”
✓ located verbatim in the source · abstract, characters 1107–1176

Title

Competition and facilitation determine dwarf mistletoe infection dynamics

Mónica E. Queijeiro‐Bolaños; Edgar J. González; Carlos Martorell; et al. Journal of Ecology 2016. doi:10.1111/1365-2745.12699

Other claims from this paper (7)

Observation Both mistletoe species showed strong density dependence.
Association A. vaginatum facilitated A. globosum growth on smaller hosts.
Association A. globosum facilitated A. vaginatum regardless of host size.
Association Previous infection by the other mistletoe enhanced A. globosum colonization.
Association Facilitation increased both species’ populations in homogeneous, low-density forests.
Association The opposite interaction pattern occurred in heterogeneous and dense forests.
Observation Both species achieved stable coexistence.

“Population growth”

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