Direct and indirect effects of environmental variability on growth and survivorship of pre‐reproductive Joshua trees, Yucca brevifolia Engelm. (Agavaceae)
نویسندگان
چکیده
منابع مشابه
Age and population structure of Joshua trees (Yucca brevifolia) in the northwestern Mojave Desert
—Many desert perennials are long-lived, but there are few data on ages or population structures of desert plants. We used 2 methods to estimate ages of a population of Yucca brevifolia (Joshua tree) in southwestern Utah from a 14-year census of plant sizes. Plant height at the 1st census ranged from 0.08 m to 6.0 m, and trees grew in height at a mean rate of 3.75 cm ⋅ yr–1. Plants also increase...
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Asymmetric hybridization and gene flow between Joshua trees (Agavaceae: Yucca) reflect differences in pollinator host specificity.
The angiosperms are by far the largest group of terrestrial plants. Their spectacular diversity is often attributed to specialized pollination. Obligate pollination mutualisms where both a plant and its pollinator are dependent upon one another for reproduction are thought to be prone to rapid diversification through co-evolution and pollinator isolation. However, few studies have evaluated the...
متن کاملAsymmetric hybridization and gene flow between Joshua trees (Agavaceae: Yucca) reflect differences in pollinator
The angiosperms are by far the largest group of terrestrial plants. Their spectacular diversity is often attributed to specialized pollination. Obligate pollination mutualisms where both a plant and its pollinator are dependent upon one another for reproduction are thought to be prone to rapid diversification through co-evolution and pollinator isolation. However, few studies have evaluated the...
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ژورنال
عنوان ژورنال: American Journal of Botany
سال: 2015
ISSN: 0002-9122,1537-2197
DOI: 10.3732/ajb.1400257