By interacting organism › Plants › Juncaceae › Juncus gerardii

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Juncus gerardi interaction component strengths did not differ between juvenile and adult Aster.

Taxon: Aster tenuifoliusSymphyotrichum tenuifoliume1
Organ / stage: juveniles and adultse0
Interactor: J. gerardiJuncus gerardiie0other
Outcome: interaction component strengthse0
Direction: did not differe0

Verbatim

e0
“We found little difference in the effects of J. gerardi on Aster at later life-history stages; interaction component strengths did not differ between juveniles and adults.”
✓ located verbatim in the source · abstract, characters 1263–1434

e1
“a perennial forb, Aster tenuifolius”
✓ located verbatim in the source · abstract, characters 527–562

Title

Facilitative and competitive interaction components among New England salt marsh plants

Rand, Tatyana A.; Emery, Nancy C.; Bertness, Mark D.; et al. UNC Libraries 2020. doi:10.17615/9j54-8a10

Other claims from this paper (4)

Associationauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The presence of Juncus can create a hospitable environment for Iva, extending its distribution to lower intertidal habitats.

Taxon: Iva frutescensIva frutescense2
Treatment: the presence of Juncuse0
Interactor: Juncus gerardiJuncus gerardiie1other
Outcome: distributione0
Direction: extendinge0

Verbatim

e0
“the presence of Juncus, with its superior ability to withstand waterlogging and salt stress, can create a hospitable environment for Iva, extending its distribution to lower intertidal habitats”
✓ located verbatim in the source · abstract, characters 2334–2527

e2
“Iva frutescens L.”
✓ located verbatim in the source · abstract, characters 311–328

e1
“Juncus gerardi Loisel”
✓ located verbatim in the source · abstract, characters 423–444

Title

Morphological and Physiological Consequences of a Positive Plant Interaction

Sally D. Hacker; Mark D. Bertness Ecology 1995. doi:10.2307/1941690

Other claims from this paper (11)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Ungrazed plots rapidly developed Scirpus-dominated mixed communities.

Taxon: Scirpus maritimusBolboschoenus maritimuse0
Interactor: Juncus gerardiJuncus gerardiie0other
Outcome: communities dominated by Scirpus maritimus mixed with Juncus gerardi developed faste0

Verbatim

e0
“In ungrazed plots, communities dominated by Scirpus maritimus mixed with Juncus gerardi developed fast.”
✓ located verbatim in the source · abstract, characters 461–564

Title

Impact of grazing on vegetation dynamics in former ricefields

F. Mesléard; J. Lepart; L. Tan Ham Journal of Vegetation Science 1995. doi:10.2307/3236438

Other claims from this paper (6)

Observation Scirpus established in nearly all quadrats and kept expanding by 42 months.
Observation Juncus began to decline after 42 months in ungrazed plots.
Observation In grazed plots Juncus alone dominated and increased cover to month 42.
Observation Scirpus established sparsely where Juncus was initially absent.
Observation Seed introduction demonstrated preemption by Juncus in controlled communities.
Association Juncus preemption over Scirpus appears stronger in grazed field conditions.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Scirpus established sparsely where Juncus was initially absent.

Taxon: Scirpus maritimusBolboschoenus maritimuse0
Interactor: Juncus gerardiJuncus gerardiie0other
Outcome: established at low densitiese0

Verbatim

e0
“Scirpus maritimus established at low densities mainly in quadrats where Juncus gerardi was initially absent.”
✓ located verbatim in the source · abstract, characters 828–936

Title

Impact of grazing on vegetation dynamics in former ricefields

F. Mesléard; J. Lepart; L. Tan Ham Journal of Vegetation Science 1995. doi:10.2307/3236438

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Seed introduction demonstrated preemption by Juncus in controlled communities.

Taxon: Scirpus maritimusBolboschoenus maritimuse0
Interactor: Juncus gerardiJuncus gerardiie0other
Outcome: phenomenon of preemptione0

Verbatim

e0
“Introduction of seeds of Scirpus maritimus in communities of Juncus gerardi under controlled conditions demonstrated the existence of the phenomenon of preemption.”
✓ located verbatim in the source · abstract, characters 937–1100

Title

Impact of grazing on vegetation dynamics in former ricefields

F. Mesléard; J. Lepart; L. Tan Ham Journal of Vegetation Science 1995. doi:10.2307/3236438

Other claims from this paper (6)

Observation Ungrazed plots rapidly developed Scirpus-dominated mixed communities.
Observation Scirpus established in nearly all quadrats and kept expanding by 42 months.
Observation Juncus began to decline after 42 months in ungrazed plots.
Observation In grazed plots Juncus alone dominated and increased cover to month 42.
Observation Scirpus established sparsely where Juncus was initially absent.
Association Juncus preemption over Scirpus appears stronger in grazed field conditions.

Observationobservedoriginal resultmeasured

Claim · model-written summary

J. gerardi competitively restricts D. spicata to disturbed habitats.

Taxon: D. spicataDistichlis spicatae0
Interactor: J. gerardiJuncus gerardiie0other
Outcome: competitively restricted to disturbed habitatse0

Verbatim

e0
“D. spicata is competitively restricted to disturbed habitats by boty J. gerardi and S. patens”
✓ located verbatim in the source · abstract, characters 869–962

Title

Interspecific Interactions among High Marsh Perennials in a New England Salt Marsh

Mark D. Bertness Ecology 1991. doi:10.2307/1938908

Other claims from this paper (12)

Observation J. gerardi competitively dominated S. patens in dense stands.
Observation J. gerardi competitively dominated D. spicata in dense stands.
Observation S. patens competitively dominated D. spicata.
Intervention effect J. gerardi grew most when transplanted into its own zone without neighbors.
Intervention effect S. patens grew most when transplanted into the J. gerardi zone without neighbors.
Intervention effect D. spicata grew most when transplanted into the J. gerardi zone without neighbors.
Mechanism J. gerardi apparently excludes S. patens toward lower marsh levels.
Observation S. patens competitively restricts D. spicata to disturbed habitats.
Observation S. patens colonization of bare patches facilitated J. gerardi colonization.
Observation D. spicata colonization of bare patches facilitated J. gerardi colonization.
Mechanism Plant cover apparently lowers patch salinity by shading and facilitates invasion by J. gerardi.
Mechanism Facilitation may commonly drive secondary succession in this marsh assemblage.

Juncus gerardii 6 claims

6 claims