نتایج جستجو برای: oak trees decline
تعداد نتایج: 187710 فیلتر نتایج به سال:
Humans have had a significant impact on the distribution and abundance of Saccharomyces cerevisiae through its widespread use in beer, bread and wine production. Yet, similar to other Saccharomyces species, S. cerevisiae has also been isolated from habitats unrelated to fermentations. Strains of S. cerevisiae isolated from grapes, wine must and vineyards worldwide are genetically differentiated...
Oak decline syndromes such as Acute Decline (AOD) and Chronic (COD) are becoming increasingly prevalent with this comes the need for more quantitative, sensitive standardised visual oak health monitoring. Phenotyping protocols were developed to specifically measure severity based on a comprehensive set of simple phenotypic descriptors. A total 36 measurements describing status included aspects ...
Yellow mistletoe is a semi-parasite plant lives in the Zagros forests on Persian oak trees. Mechanical control is one of the basic acts to manage yellow mistletoe contamination. This research aimed to evaluate the performance of mechanical methods; wood-glue, clay, black plastic, natural color and control treatment to control yellow mistletoe at different altitudes and selecting the most sui...
Mohammed Reza Zargaran, Nadir Erbilgin, and Youbert Ghosta (2012) Changes in oak gall wasps species diversity (Hymenoptera: Cynipidae) in relation to the presence of oak powdery mildew (Erysiphe alphitoides). Zoological Studies 51(2): 175-184. Plant-mediated interactions usually lead to multipartite interactions in a community of organisms. To evaluate the impact of oak powdery mildew Erysiphe ...
abstract the oak leafroller moth , tortrix viridana l. is a destructive pest within it’s spreading area which invades the oak species, especially in west and northwest forests of iran, in recent years. some parts of west azarbayjan’s forests which are located in piranshahr and sardasht region have been affected by this pest since 1989 that oak trees vigor and survival have been gone down result...
Acorn production varies considerably among oak (Quercus) species, individual trees, years, and locations, which directly affects oak regeneration and populations of wildlife species that depend on acorns for food. Hard mast indices provide a relative ranking and basis for comparison of withinand between-year acorn crop size at a broad scale, but do not provide an estimate of actual acorn yield—...
0006-3207/$ see front matter 2010 Elsevier Ltd. A doi:10.1016/j.biocon.2010.03.029 * Corresponding author. Address: 1017 Hoover Str 4X9. Tel.: +1 250 352 6313. E-mail addresses: [email protected] ( [email protected] (D.K. Rosenberg), J.Fontaine@murd With recent emphasis on sustainable agriculture, conservation of native biota within agricultural systems has become a priority. Remnant...
California has a fire-prone Mediterranean climate, and many of its nine species of native oak trees are thought to have evolved with fire. Little has been widely published about the role of fire in the oak recruitment and mortality in the western United States, and there has been some debate about how to reintroduce fire into oak woodlands. We present here a review, synthesis, and analysis of t...
Current ecological, economic, and social conditions present unique challenges to natural resource managers seeking to maintain the resilience of disturbance-dependent ecosystems, such as oak (Quercus spp.) forests. Oak-dominated ecosystems throughout the U.S. have historically been perpetuated through periodic disturbance, such as fire, but more recently show decline given shifting disturbance ...
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