Abstract
Yucca brevifolia is distributed throughout a broad range of plant communities. Open substrate dominates the study areas, however a large majority of Y. brevifolia seedlings were found growing under the canopy of other woody shrubs. This pattern of recruitment did not vary by canyon or elevation. Thirty-five species of perennial shrubs were identified in the study areas and sixteen of these were found in association with at least one Y. brevifolia seedling. However, four shrubs were found in a nurse relationship with Y. brevifolia above the frequency predicted by either their canopy area or numerical dominance. The research indicates there is strong micro-habitat specificity for Yucca brevifolia recruitment under the canopy of nurse plants. These data also suggest that the local presence of specific perennial shrubs resulted in higher levels of recruitment causing a distinct pattern of community development, presumably through the amelioration of abiotic stresses.
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Claims 7
Claim · model-written summary
Most Yucca brevifolia seedlings were found growing under the canopy of other woody shrubs rather than on open substrate.
- Taxon
- Yucca brevifolia
Yucca brevifoliae0 - Outcome
- found growing under the canopye1
- Value
- a large majoritye1
- Setting
- under the canopy of other woody shrubse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yucca brevifolia is distributed throughout a broad range of plant communities”
e1“a large majority of Y. brevifolia seedlings were found growing under the canopy of other woody shrubs”
Claim · model-written summary
Yucca brevifolia recruitment pattern did not vary by canyon or elevation.
- Taxon
- Yucca brevifoliaYucca brevifoliae0
- Outcome
- pattern of recruitmente2
- Direction
- did not varye2
- Setting
- canyon or elevatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yucca brevifolia is distributed throughout a broad range of plant communities”
e2“This pattern of recruitment did not vary by canyon or elevation”
Claim · model-written summary
Sixteen of 35 perennial shrub species were found in association with at least one Yucca brevifolia seedling in the study areas.
- Taxon
- Yucca brevifoliaYucca brevifoliae0
- Outcome
- in association with at least one Y. brevifolia seedlinge3
- Value
- sixteene3
- Setting
- study arease3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yucca brevifolia is distributed throughout a broad range of plant communities”
e3“Thirty-five species of perennial shrubs were identified in the study areas and sixteen of these were found in association with at least one Y. brevifolia seedling”
Claim · model-written summary
Four shrubs were in a nurse relationship with Yucca brevifolia at a frequency above that predicted by their canopy area or numerical dominance.
- Taxon
- Yucca brevifoliaYucca brevifoliae0
- Outcome
- in a nurse relationship with Y. brevifoliae4
- Direction
- abovee4
- Value
- foure4
- Comparator
- frequency predicted by either their canopy area or numerical dominancee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yucca brevifolia is distributed throughout a broad range of plant communities”
e4“four shrubs were found in a nurse relationship with Y. brevifolia above the frequency predicted by either their canopy area or numerical dominance”
Claim · model-written summary
The authors indicate strong micro-habitat specificity for Yucca brevifolia recruitment under the canopy of nurse plants.
- Taxon
- Yucca brevifoliaYucca brevifoliae0
- Outcome
- micro-habitat specificity for Yucca brevifolia recruitmente5
- Setting
- under the canopy of nurse plantse5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yucca brevifolia is distributed throughout a broad range of plant communities”
e5“The research indicates there is strong micro-habitat specificity for Yucca brevifolia recruitment under the canopy of nurse plants”
Claim · model-written summary
The local presence of specific perennial shrubs is suggested to result in higher levels of Yucca brevifolia recruitment.
- Taxon
- Yucca brevifoliaYucca brevifoliae0
- Treatment
- local presence of specific perennial shrubse6
- Outcome
- levels of recruitmente6
- Direction
- highere6
- Qualifier
- presumably through the amelioration of abiotic stressese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yucca brevifolia is distributed throughout a broad range of plant communities”
e6“These data also suggest that the local presence of specific perennial shrubs resulted in higher levels of recruitment causing a distinct pattern of community development, presumably through the amelioration of abiotic stresses”
Claim · model-written summary
The local presence of specific perennial shrubs is suggested to cause a distinct pattern of community development, presumably through amelioration of abiotic stresses.
- Taxon
- Yucca brevifoliaYucca brevifoliae0
- Treatment
- local presence of specific perennial shrubse6
- Outcome
- distinct pattern of community developmente6
- Qualifier
- presumably through the amelioration of abiotic stressese6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yucca brevifolia is distributed throughout a broad range of plant communities”
e6“These data also suggest that the local presence of specific perennial shrubs resulted in higher levels of recruitment causing a distinct pattern of community development, presumably through the amelioration of abiotic stresses”