نتایج جستجو برای: oxycedri arceuthobium
تعداد نتایج: 102 فیلتر نتایج به سال:
Influence of eastern spruce dwarf mistletoe on stand structure and composition in northern Minnesota
Black spruce (Picea mariana (Mill.) Britton, Sterns & Poggenb.) is one of the most common tree species in boreal forest. However, there limited information on major disturbance agents, eastern dwarf mistletoe (Arceuthobium pusillum Peck; EDM) a native, parasitic plant that influences stand development especially at southwestern range limit black Minnesota. The goal our study was to quantify ove...
Dwarf mistletoes, obligate, parasitic plants with diminutive aerial shoots, have long-term effects on host tree water relations, hydraulic architecture and photosynthetic gas exchange and can eventually induce tree death. To investigate the long-term (1886-2010) impacts of dwarf mistletoe on the growth and gas exchange characteristics of host western hemlock, we compared the diameter growth and...
Insects, fungi, and diseases play an important role in forest stand development subsequently, management decisions treatments. As these disturbance agents commonly occur within across landscapes, modeling has often been used to inform planning decisions. However, models are rarely benchmarked, leaving questions about their utility. Here, we assessed the predictive performance of a Bayesian hier...
We investigated the distribution and severity of trees infected with western hemlock dwarf mistletoe (Arceuthobium tsugense (Rosendahl) G.N. Jones subsp. tsugense) in an old-growth Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) – western hemlock (Tsuga heterophylla (Raf.) Sarg.) forest. With the use of Hawksworth six-class dwarf mistletoe rating system, infection status was assessed for 351...
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