نتایج جستجو برای: white oaks
تعداد نتایج: 182082 فیلتر نتایج به سال:
'White oaks'--one of the main groups of the genus Quercus L.--are represented in western Eurasia by the 'roburoid oaks', a deciduous and closely related genetic group that should have an Arcto-Tertiary origin under temperate-nemoral climates. Nowadays, roburoid oak species such as Quercus robur L. are still present in these temperate climates in Europe, but others are also present in southern E...
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To detect and avoid illegal logging of valuable tree species, identification methods for the origin of timber are necessary. We used next-generation sequencing to identify chloroplast genome regions that differentiate the origin of white oaks from the three continents; Asia, Europe, and North America. By using the chloroplast genome of Asian Q. mongolica as a reference, we identified 861 varian...
Old veteran trees function as biodiversity hotspots in both forests and open landscapes, protecting such is an important measure to halt loss of biodiversity. Nevertheless, the number continues decline worldwide, although estimates this mainly stem from geographically restricted case studies. In Norway, oak have received special protection since 2011 through Norwegian Biodiversity Act, however,...
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A wildfire occurred in Shawnee State Forest located southern Ohio that consumed 1215 hectares. Based on earlier forest inventories it was known paulownia (Paulownia tomentosa), a non-native invasive tree species, the forest. The objective of this study to determine if heavily colonized areas two years after fire where burn occurred, and its presence had negative impact regeneration (<137 cm ...
In Central Europe, European beech (Fagus sylvatica L.) wood has a high potential for the production of construction and decorative materials, with aim replacing Norway spruce, oaks, other traditionally used tree species. However, biological resistance wood—to decaying fungi, molds, insects—is low, in damp conditions its must be increased suitable preservatives or modification methods. present e...
Early germination of white oaks is widely viewed as an evolutionary strategy to escape rodent predation; yet, the mechanism by which this is accomplished is poorly understood. We report that chestnut oak Quercus montana (CO) and white oak Q. alba (WO) (from North America), and oriental cork oak Q. variabilis (OO) and Mongolian oak Q. mongolica (MO) (from Asia) can escape predation and successfu...
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