Drivers of synchrony of acorn production in the valley oak ( Quercus lobata ) at two spatial scales
نویسندگان
چکیده
منابع مشابه
Drivers of synchrony of acorn production in the valley oak (Quercus lobata) at two spatial scales.
We investigated spatial synchrony of acorn production by valley oaks (Quercus lobata) among individual trees at the within-population, local level and at the among-population, statewide level spanning the geographic range of the species. At the local level, the main drivers of spatial synchrony were water availability and flowering phenology of individual trees, while proximity, temperature dif...
متن کاملEstablishing a Range-Wide Provenance Test in Valley Oak (Quercus lobata Née) at Two California Sites
We present the methods used to establish a provenance test in valley oak, Quercus lobata. Nearly 11,000 acorns were planted and 88 percent of those germinated. The resulting seedlings were measured after 1 and 2 years of growth, and were outplanted in the field in the winter of 2014-2015. This test represents a long-term resource for both research and conservation.
متن کامل1. Distribution and Status of the Valley Oak (quercus Lobata Nee) in California
The valley oak (Quercus lobata Neé) is among the largest and longest lived of the North American oaks, attaining trunk diameters up to 4 m, heights of 12 to 25 m, and ages of 300 years or more. Unique to California, this oak is also one of California’s most familiar and evocative icons. Where they occur, large valley oaks are focal visual and ecological elements of both developed and rural land...
متن کاملNo trade-off between seed size and number in the valley oak Quercus lobata.
We examined the relationship between acorn mass and number in valley oaks (Quercus lobata) over 4 years in central coastal California. Despite considerable variation in acorn size among both trees and years, trees produced acorns of the same size relative to other trees in different years. Across years, the relationship between acorn mass and acorn crop size was generally positive, even after c...
متن کاملMating Patterns in a Savanna Population of Valley Oak (Quercus lobata Neé)
California valley oak is threatened by landscape alteration and failing recruitment in remnant stands. Its reproductive ecology is a key element of the seedling recruitment process. We first examine the mating system, to determine the extent of inbreeding in a population at Sedgwick Reserve, in Santa Barbara County. We then quantify variation in germination success and acorn size, evaluating th...
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ژورنال
عنوان ژورنال: Ecology
سال: 2017
ISSN: 0012-9658,1939-9170
DOI: 10.1002/ecy.2010