scholarly journals (1683) Proposal to reject the name Quercus prinus (Fagaceae )

Taxon ◽  
2005 ◽  
Vol 54 (1) ◽  
pp. 213-214
Author(s):  
Alan T. Whittemore ◽  
Kevin C. Nixon
Keyword(s):  
Quercus Prinus

Photosynthetic characteristics in canopies of Quercus rubra, Quercus prinus and Acer rubrum differ in response to soil water availability

Oecologia ◽  
2002 ◽  
Vol 130 (4) ◽  
pp. 515-524 ◽  
Author(s):  
Matthew H. Turnbull ◽  
David Whitehead ◽  
David T. Tissue ◽  
William S. Schuster ◽  
Kim J. Brown ◽  
...  
Keyword(s):  
Soil Water ◽  
Water Availability ◽  
Quercus Rubra ◽  
Acer Rubrum ◽  
Photosynthetic Characteristics ◽  
Soil Water Availability ◽  
Quercus Prinus

Timing of Disturbance after Herbicide Applications for Chemical Site Preparation

1988 ◽  
Vol 12 (2) ◽  
pp. 124-127 ◽  
Author(s):  
Patrick L. Burch ◽  
Shepard M. Zedaker
Keyword(s):  
Moisture Content ◽  
Coastal Plain ◽  
Leaf Tissue ◽  
Site Preparation ◽  
Environmental Data ◽  
Quercus Prinus

Abstract Four herbicide combinations were screened for efficacy on selected hardwoods relative to four timings of postapplication disturbance. Garlon 4®, Garlon 4 plus Esteron 99®, Garlon 4 plus Tordon 101®, and Garlon 4 plus Tordon K® were applied in the spring to Piedmont and Coastal Plain sites in a replicated experiment. The best hardwood control was achieved when the disturbance occurred at least six to eight weeks after application. Chestnut oak (Quercus prinus L.) control was successfully predicted on the basis of leaf tissue moisture content and environmental data. Only Garlon 4 plus Esteron 99 failed to give good overall control of hardwood brush. South. J. Appl. For. 12(2):124-127.

Relationships Among Potassium, Calcium and Trace Elements in Tree Leaves and Associated Canopy Arthropods

1990 ◽  
Vol 25 (3) ◽  
pp. 439-449 ◽  
Author(s):  
Lance S. Risley
Keyword(s):  
Tree Species ◽  
Acer Rubrum ◽  
Nutritional Ecology ◽  
Nutrient Cycles ◽  
Red Maple ◽  
Yellow Poplar ◽  
Flowering Dogwood ◽  
Quercus Prinus ◽  
The Relationship

There is a paucity of information that describes the relationship between the suite of nutrient elements in tree foliage and associated arthropod assemblages. Foliage from chestnut oak (Quercus prinus), hickories (Carya spp.), yellow poplar (Liriodendron tulipifera), red maple (Acer rubrum), and flowering dogwood (Cornus florida) and associated canopy arthropods were collected in an undisturbed and a 15 yr-old successional forested watershed and analyzed for K, Ca, Mn, Fe, Cu, Zn, Rb, and Sr. Foliar Mn and Sr were found in higher concentrations in the undisturbed watershed. Foliage from hickories was generally higher in concentrations of metals (Mn, Fe, Cu, Zn) compared with other tree species. Dogwood foliage had significantly higher concentrations of Ca and significantly lower concentrations of Mn than other tree species (P < 0.05). Concentrations of foliar elements in herbivore-damaged and undamaged leaves did not differ significantly (P > 0.05). Concentrations of elements in and among arthropod feeding categories varied substantially such that no trends were apparent among tree species and between watersheds. The most apparent trend among arthropod feeding categories was the relatively large accumulation of K in chewing herbivores (primarily caterpillars). In general, there appeared to be increases in K, Fe, Cu, and Zn concentrations from primary producers to consumers. This study contributes to arthropod nutritional ecology and to defining the role of canopy arthropods in forest ecosystem nutrient cycles.

BRANCH CANKER AND DIEBACK OF QUERCUS PRINUS L. CAUSED BY A SPECIES OF BOTRYODIPLODIA

1965 ◽  
Vol 43 (6) ◽  
pp. 731-737 ◽  
Author(s):  
Robert A. Schmidt ◽  
Charles L. Fergus
Keyword(s):  
Petri Dish ◽  
Scale Insect ◽  
Early Summer ◽  
Yeast Nitrogen Base ◽  
Nitrogen Base ◽  
Canker Disease ◽  
Quercus Prinus ◽  
Foliar Blight ◽  
Branch Dieback ◽  
Branch Canker

An extensive dieback and canker disease of chestnut oak (Quercus prinus L.) in Pennsylvania was proved to be caused by Botryodiplodia sp. Isolations from infected stems, branches, buds, and petioles, many of which displayed stromata of Botryodiplodia sp., yielded cultures of this fungus. Inoculations of chestnut oak seedlings and saplings with Botryodiplodia sp. induced symptoms identical with those observed in nature. The fungus was subsequently reisolated from the inoculated diseased tissues. Symptoms occurring in nature were foliar blight, branch dieback, and branch canker. Extensive foliar symptoms, which appeared in late spring and early summer, probably resulted from infections which took place late in the previous summer or fall. Frequent association of a scale insect, Asterolecanium sp., with the disease implicated it as a contributing factor in the disease cycle. Maximum radial growth of the fungus on cornmeal and Bacto yeast nitrogen base agar occurred at 20 and 25 °C, respectively. Light was necessary for the production of stromata and conidia in culture. Microtome sections of petri dish cultures and diseased twigs showed that the fruiting structures of the pathogen were uni- or multi-locule pycnidial stromata. The stromata averaged 400–500 μ. in cross section and contained conidia which at maturity were brown, one-septate, and measured 13 × 27 μ.

scholarly journals Reconstructing the competitive dynamics of mixed-oak neighborhoods

2012 ◽  
Vol 42 (9) ◽  
pp. 1714-1723 ◽  
Author(s):  
Eric K. Zenner ◽  
Daniel J. Heggenstaller ◽  
Patrick H. Brose ◽  
JeriLynn E. Peck ◽  
Kim C. Steiner
Keyword(s):  
Cross Sections ◽  
Acer Rubrum ◽  
Growth Dynamics ◽  
Tree Height ◽  
Red Maple ◽  
Importance Value ◽  
Quercus Prinus ◽  
Red Oaks ◽  
Allegheny Plateau ◽  
Tree Height Growth

The disparity between the potential for latent oak dominance within a stand and their region-wide decline in importance value raises questions about the competitiveness of oaks in early stand dynamics. We reconstructed tree height growth dynamics in mixed-species neighborhoods to determine if currently dominant oaks were ever shorter than their competitors and at what age currently subordinate oaks fell behind. In 23–36 year old mixed-oak stands in two physiographic provinces of Pennsylvania, we identified dominant and subordinate northern red oaks ( Quercus rubra L.) and chestnut oaks ( Quercus prinus L.) competing with adjacent non-oaks (red maple ( Acer rubrum L.), sweet birch ( Betula lenta L.), and black cherry ( Prunus serotina Ehrh.)) of equal crown class. In each stand, we randomly selected 20 tree neighborhoods and collected stem cross sections every metre from the base to the tip of each tree. In the Allegheny Plateau province, dominant northern red oaks never averaged more than 2 m shorter than their competitors, while by age 20, subordinate oaks were commonly more than 2 m behind. Dominant chestnut oaks in the Ridge and Valley province were never more than 1 m shorter than their competitors; subordinate oaks, however, were generally always at least a metre behind. In both regions, growth dynamics of currently subordinate trees were indistinguishable from those of currently dominant trees during their first decade. Because oaks that were considerably behind at age 15 were likely to be subordinate by age 30, the window of opportunity for release to prevent oaks from becoming permanently overtopped and unable to recover may thus be relatively early (age 10–20).

Linking surface-fire behavior, stem heating, and tissue necrosis

2005 ◽  
Vol 35 (4) ◽  
pp. 814-822 ◽  
Author(s):  
A S Bova ◽  
M B Dickinson
Keyword(s):  
Heat Flux ◽  
Tree Mortality ◽  
Fire Behavior ◽  
Acer Rubrum ◽  
Staining Technique ◽  
Fire Intensity ◽  
Red Maple ◽  
Quercus Prinus ◽  
Small Plot ◽  
Tetrazolium Staining

Data from 69 experimental, small-plot fires are used to describe relationships among fire intensity, bark-surface heat flux, and depth of necrosis in stem tissue for red maple (Acer rubrum L.) and chestnut oak (Quercus prinus L.). A tetrazolium staining technique was used to determine the depth of necrosis in tree boles subjected to fires with intensities of 20 to 2000 kW/m. Over a range of bark moistures (28%–83%) and bole diameters (3–20 cm), depth of necrosis appears to be primarily a function of fire intensity, flame residence time at the stem, and the corresponding time-integrated heat flux at the bark surface. Our results, along with known relations between bole diameter and bark thickness, and improved models of fire behavior and heat transfer, may be useful for estimating tree mortality resulting from prescribed fires.

NEW AND LITTLE-KNOWN APHIDS (HOMOPTERA: APHIDIDAE) FROM EASTERN NORTH AMERICA

1971 ◽  
Vol 103 (8) ◽  
pp. 1083-1106 ◽  
Author(s):  
F. W. Quednau
Keyword(s):  
North America ◽  
Quercus Rubra ◽  
Aphid Species ◽  
Fagus Grandifolia ◽  
Eastern North America ◽  
Quercus Prinus

AbstractSeven aphid species, Longistigma chantali from Fagus grandifolia, Diphyllaphis microtrema from Quercus rubra, Hoplochaitophorus heterotrichus from Quercus prinus, Calaphis leonardi from Betula populifolia, Calaphis neobetulella from Betula nigra, Monellia hispida from Carya glabra, and Iziphya mackaueri from Carex sp., are described as new. Neosymydobius quercihabitus Miller and Calaphis betulaecolens (Fitch) are redescribed.

Relating land-use history and climate to the dendroecology of a 326-year-old Quercus prinus talus slope forest

1998 ◽  
Vol 28 (3) ◽  
pp. 347-358 ◽  
Author(s):  
Charles M Ruffner ◽  
Marc D Abrams
Keyword(s):  
Land Use ◽  
Cryphonectria Parasitica ◽  
Drought Severity ◽  
Land Use History ◽  
Climatic Data ◽  
Climatic Fluctuations ◽  
Quercus Prinus ◽  
European Settlement ◽  
Before And After ◽  
Talus Slope

Dendroecology and land-use history were used to investigate the ecological history of a 326-year-old Quercus prinus L. forest. Quercus prinus, Castanea dentata (Marsh.) Borkh., and Pinus rigida Mill. dominated this talus slope prior to European settlement based on witness tree records. Oak species have exhibited continuous recruitment over three centuries probably in response to periodic fire and wind disturbances. While the stand escaped the direct impacts of timber cutting and the charcoal iron industry, the indirect effects of these land-use practices increased growth and recruitment. Different criteria were used for understory versus overstory trees to improve our detection of growth releases. Overall, major disturbances occurred approximately every 40 and 31 years before and after European settlement, respectively. This century, old-growth Q. prinus experienced marked growth increases coupled with high recruitment following the introduction of the chestnut blight (Cryphonectria parasitica (Murr.) Barr.) to the stand in 1909. Tree growth was also highly correlated with temperature and Palmer drought severity indices between 1895 and 1995. Climatic fluctuations in the 1820s-1830s and 1920s reduced radial growth and recruitment resulting in stem exclusion stages following regeneration pulses. Relating land-use history and climatic data to the dendroecology of this forest improved our understanding of its historical development.

Sign in / Sign up

Export Citation Format

Share Document