Differential tree recruitment in California oak savannas: Are evergreen oaks replacing deciduous oaks?
نویسندگان
چکیده
منابع مشابه
Serotiny in California Oaks
Although prolonged seed retention, or serotiny, is believed to be an adaptation to highly variable environments such as the Mediterranean regions of California, no prior study has systematically investigated the prevalence of seed retention among California oaks (family Fagaceae), the dominant woody taxon in California foothill woodlands. We quantified the extent to which acorns were retained i...
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We investigated the hydraulic properties in relation to soil moisture, leaf habit, and phylogenetic lineage of 17 species of oaks ( Quercus ) that occur sympatrically in northern central Florida (USA). Leaf area per shoot increased and Huber values (ratio of sapwood area to leaf area) decreased with increasing soil moisture of species’ habitats. As a result, maximum hydraulic conductance and ma...
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DNA samples of oaks from the collection at the University of California, Davis Arboretum have been isolated, and partial sequences determined for genes of ribulosebisphosphate carboxylase large subunit and for internal transcribed sequences of ribosomal RNA genes. A comparison of these sequences contributes to an elucidation of the phylogeny of this important plant genus. The agreement between ...
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The San Francisco Bay Area was home to some of the most celebrated valley oak lands in California, their grandeur much chronicled by early visitors and residents. Despite extensive loss, there remains substantial local interest in their preservation and restoration, necessitating an understanding of historical distribution and subsequent change. Assembling and interpreting historical and curren...
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Identifying how physiological responses are structured across environmental gradients is critical to understanding in what manner ecological factors determine tree performance. Here, we investigated the spatiotemporal patterns of signal strength of carbon isotope discrimination (Δ(13)C) and oxygen isotope composition (δ(18)O) for three deciduous oaks (Quercus faginea (Lam.), Q. humilis Mill. an...
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ژورنال
عنوان ژورنال: Forest Ecology and Management
سال: 2017
ISSN: 0378-1127
DOI: 10.1016/j.foreco.2017.05.018