Results 71 to 80 of about 93,168 (289)

Establishment of Heterobasidion annosum s.l. infections in young Norway spruce dominated stands [PDF]

open access: yes, 2013
One of the worst pathogens on Norway spruce, Heterobasidion annosum s.l., can establish in previously healthy trees by spores landing on freshly made stumps from where mycelia can grow via root grafts and contacts to the adjacent tree.
Gunulf, Anna
core   +1 more source

Two "Fires" of Leadership: Is it Possible to Listen and Lead Parish Cultural Change?

open access: yesJournal of Moral Theology
Pope Francis has claimed that “we are living through a change of epoch, the deepest level of which is cultural.” “A change of epoch” entails much change in Catholic parishes especially across the Western world. Change can be chosen or unchosen.
Hannah Vaughan-Spruce
doaj   +1 more source

The relationships between Pityogenes chalcographus and Nemosoma elongatum in clear-cuts with different types of management

open access: yesPlant Protection Science, 2020
Pityogenes chalcographus (Linnaeus, 1758) is a significant pest of young spruce stands up to the age of about 20 years. Predation can be a significant part of decreasing its population density.
Petr Zahradník, Marie Zahradníková
doaj   +1 more source

Photo Interpretation of Spruce Beetle-Attacked Spruce

open access: yesCanadian Journal of Remote Sensing, 1985
RESUMEL'objectif de la presente communication est de presenter les resultats d'une etude visant a detecter les attaques du coleoptere de l'epinette a l'aide de photos infrarouge couleur (CIR) et de comparer les resultats avec des donnees recueillies au sol.
openaire   +1 more source

Genomic insights into the local adaptation of spontaneous olive trees in the Mediterranean Basin highlight the need for conservation planning in the face of global change

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The Mediterranean Basin, a major biodiversity hotspot, is highly vulnerable to climate and global changes. Wild olive trees form an essential part of this landscape and hold strong ecological, cultural and socio‐economic significance. By examining how these trees responded to past climatic conditions, this study shows adaptation of olive trees to local
Lison Zunino   +10 more
wiley   +1 more source

Pembrolizumab-induced vasculitis demonstrated by FDG-PET/CT

open access: yesRadiology Case Reports
A 76-year-old man with a history of malignant pleural mesothelioma treated with pembrolizumab underwent FDG-PET/CT for restaging. The images demonstrated FDG uptake overlying the right hepatic and splenic artery, which were new from the previous FDG-PET ...
Tuan Vu, BS   +4 more
doaj   +1 more source

Within‐tree spatial heterogeneity of sap flow velocities and wood properties and its effect on the uncertainty of tree level sap flux estimates

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
As forests are important for biodiversity and recreation and provide vital resources globally, it is essential that their health can be accurately monitored, for example, by using sap flow probes to measure tree water uptake. We investigated whether sap flow measurements might differ at various locations within the same tree due to variation in wood ...
Stefan Seeger   +2 more
wiley   +1 more source

Dissolved organic carbon and nitrogen leaching from Scots pine, Norway spruce and silver birch stands in southern Sweden [PDF]

open access: yes, 2011
The effects of three common tree species – Scots pine, Norway spruce and silver birch – on leaching of dissolved organic carbon and dissolved nitrogen were studied in an experimental forest with podzolised soils in southern Sweden. We analyzed soil water
Mats Fröberg   +7 more
core   +2 more sources

High-Titer Methane from Organosolv-Pretreated Spruce and Birch

open access: yesEnergies, 2017
The negative impact of fossil fuels and the increased demand for renewable energy sources has led to the use of novel raw material sources. Lignocellulosic biomass could serve as a possible raw material for anaerobic digestion and production of biogas ...
Leonidas Matsakas   +4 more
doaj   +1 more source

Niche‐tracking as a collecting method: Habitat‐targeted search strategies for taxon‐focused botany

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity science depends on more than collecting plants—it depends on how we search for them. Although GPS and digital maps have transformed fieldwork, they can also encourage repeated visits to the same easy‐to‐access sites, leaving other habitats and populations unknown to science.
Lucas C. Marinho   +2 more
wiley   +1 more source

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