منابع مشابه
Elevated CO2 increases the long-term decomposition rate of Quercus myrtifolia leaf litter
Decomposition of Quercus myrtifolia leaf litter in a Florida scrub oak community was followed for 3 years in two separate experiments. In the first experiment, we examined the effects CO2 and herbivore damage on litter quality and subsequent decomposition. Undamaged, chewed and mined litter generated under ambient and elevated (ambient1 350 ppm V) CO2 was allowed to decompose under ambient cond...
متن کاملAcquisition of Ophiostoma quercus and Ceratocystis fagacearum by Nitidulids from O. quercus–Colonized Oak Wilt Mats
Oak wilt infection centers are initiated by overland spread of the causal fungus, Ceratocystis fagacearum (T. W. Bretz) J. Hunt, by insects (10). Sap-feeding beetles (Coleoptera: Nitidulidae) are considered a primary vector of the pathogen in the north central states (7,9). Successful transmission by sap-feeding beetles depends on several coexisting conditions, including (i) the availability of...
متن کاملLong-term Growth and Persistence of Blue Oak (quercus Douglasii) Seedlings in a California Oak Savanna
We report on growth and survivorship of two cohorts of blue oaks Quercus douglasii Hook. & Arn. (Fagaceae) monitored at Hastings Reservation in Monterey County, California, the first growing in an unprotected old field and measured as seedlings in 1965 and the second planted as acorns in 1985 in several sites differing in their degree of protection from grazing. Growth of all individuals was ex...
متن کاملHow Discrete Are Oak Species? Insights from a Hybrid Zone between Quercus Grisea and Quercus Gambelii.
The white oaks Quercus gambelii and Q. grisea overlap in distribution in New Mexico and Arizona. Within the region of overlap, there are numerous instances of contact between the two taxa. In some areas of contact morphologically, intermediate trees are common, whereas in others, morphologically intermediate trees are rare or absent. We describe a set of RAPD markers that distinguish between th...
متن کاملPhylogeographical variation of chloroplast DNA in cork oak (Quercus suber).
BACKGROUND AND AIMS In the last decades, the geographical location of the centre of origin of Quercus suber (cork oak), a strictly western Mediterranean oak species, has been the subject of controversy. METHODS RFLP variation over the whole chloroplast DNA molecule and PCR-RFLPs over seven specific cpDNA fragments were analysed phylogeographically to reconstruct the evolutionary history of co...
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ژورنال
عنوان ژورنال: EDIS
سال: 2018
ISSN: 2576-0009
DOI: 10.32473/edis-sg183-2018