Estimating Mast Production: An Evaluation of Visual Surveys and Comparison with Seed Traps using White Oaks
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چکیده
منابع مشابه
Estimating Mast Production: An Evaluation of Visual Surveys and Comparison with Seed Traps using White Oaks
We compared five types of visual mast surveys with seed trap data from 105 white oaks (Quercus alba L.) during 1996-1997 in the Ouachita Mountains of Arkansas. We also evaluated these visual survey methods for their usefulness indetecting differences in acorn density among areas. Indices derived from all five methods were highly correlated with acorn densities derived from traps, and the Koenig...
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چکیده ندارد.
15 صفحه اولTiming of Flowering and Seed Production in Three California Oaks
We examined the importance of pollen limitation to variation in acorn production of three species of California oaks (Quercus lobata, Q. douglasii, and Q. agrifolia) by testing for relationships between phenology and acorn production. Within years, trees flowering closer to the mean flowering date of the population produced significantly more acorns in two of the species. Assuming that more pol...
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ژورنال
عنوان ژورنال: Southern Journal of Applied Forestry
سال: 1999
ISSN: 0148-4419,1938-3754
DOI: 10.1093/sjaf/23.3.164