Results 11 to 20 of about 315,914 (362)
Trees, 2020 Key message Under severe drought, growth of Norway spruce suffered much more than European beech. Norway spruce benefited from growing in the environment of beech, and both species acclimated slightly to 5 years of experimentally extended drought ...
H. Pretzsch +5 more
semanticscholar +1 more source
The effect of spruce plantation density on resilience of mixed forests in the Perm Krai [PDF]
, 2019 Over the course of the last few decades, many countries across the globe have experienced mass desiccation of spruce plantations. The subject of our research was the spruce forests of the Russian Perm Krai's mixed forest zone.
Ivanchina, L. A., Zalesov, S. V.
core +1 more source
Landscape Ecology, 2020 Norway spruce (Picea abies) is one of the most widespread tree species in Europe’s forests. Due to its high economic value it has been strongly favored by management, especially at the trailing edge of its natural distribution. However, disturbances from
Juha Honkaniemi, W. Rammer, R. Seidl
semanticscholar +1 more source
The Economics of Spruce Budworm Outbreaks in the Lake States: An Overview [PDF]
, 2017 Economic effects of spruce budworm outbreaks in the Lake States were examined. The recent outbreak caused spruce and fir mortality on 420 thousand ha (I.OS million acres) of commercial forest land in the Lake States.
Gregory, G. Robinson +3 more
core +2 more sources
Hydroxyacetophenone defenses in white spruce against spruce budworm [PDF]
Evolutionary Applications, 2019 AbstractWe review a recently discovered white spruce (Picea glauca) chemical defense against spruce budworm (Choristoneura fumiferana) involving hydroxyacetophenones. These defense metabolites detected in the foliage accumulate variably as the aglycons, piceol and pungenol, or the corresponding glucosides, picein and pungenin.
Parent, GJ +7 more
openaire +4 more sources
Considerations When Sampling Spruce Budworm Egg Masses on Balsam Fir and White Spruce in the Lake States: Low Population Levels [PDF]
, 2017 One cluster each of balsam fir, Abies balsamea, and white spruce, Picea glauca, trees was chosen from each of five stands of spruce-fir in Michigan\u27s Upper Peninsula.
Fowler, Gary W, Simmons, Gary A
core +2 more sources
The Impacts of Calamity Logging on the Development of Spruce Wood Prices in Czech Forestry
Forests, 2020 Currently, the decline in spruce wood prices is a serious problem for the forestry sector in the Czech Republic. We estimate that the fall in wood prices in European markets causes losses not only to the forestry companies producing, harvesting, and ...
Daniell Toth +3 more
semanticscholar +1 more source
Widespread micronodular hepatic metastases of neuroendocrine tumor detected by [68Ga]DOTATATE PET/CT
Radiology Case Reports, 2023 Neuroendocrine tumors (NET) encompass a diverse, heterogeneous group of neoplasms that originate from the secretory cells of the neuroendocrine system. These neoplasms typically express the somatostatin receptor (SSTR), which can be targeted by molecular
Julia C. D'Souza, MD, MS +4 more
doaj +1 more source
Spruce Budworm Egg Mass Density on Balsam Fir and White Spruce: Low Population Levels (Lepidoptera: Tortricidae) [PDF]
, 2017 As part of a study to develop improved foliage sampling methods for spruce budworm, Choristoneura fumiferana (Clemens), egg masses, two balsam fir (four in one stand), Abies balsamea, and two white spruce, Picea glauca, trees were chosen from each of ...
Fowler, Gary W, Simmons, Gary A
core +2 more sources