Tree girdling and host tree volatiles provides a useful trap for bronze birch borer Agrilus anxius Gory (Coleoptera: Buprestidae)†

2019 ◽  
Author(s):  
Peter J Silk ◽  
Krista L Ryall ◽  
Gary Grant ◽  
Lucas E Roscoe ◽  
Peter Mayo ◽  
...  
Keyword(s):  
Host Tree ◽  
Bronze Birch Borer ◽  
Tree Girdling

scholarly journals Impact of Harvest Conditions and Host Tree Species on Chemical Composition and Antioxidant Activity of Extracts from Viscum album L.

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3741
Author(s):  
Wioleta Pietrzak ◽  
Renata Nowak
Keyword(s):  
Antioxidant Activity ◽  
Biological Activity ◽  
Chemical Composition ◽  
Tree Species ◽  
Plant Material ◽  
Plant Secondary Metabolites ◽  
Host Tree ◽  
Host Tree Species ◽  
High Antioxidant Activity ◽  
Mistletoe Extracts

The content of plant secondary metabolites is not stable, and factors such as the region/location effect and seasonal variations have an impact on their chemical composition, especially in parasitic plants. Research in this area is an important step in the development of quality parameter standards of medicinal plants and their finished products. The effects of the time and place of harvest and the host tree species on the chemical composition and antioxidant activity of mistletoe extracts were investigated. Statistical tools were used to evaluate the results of the spectrophotometric and LC-ESI-MS/MS studies of the phenolic composition and antioxidant activity. The investigations indicate that the qualitative and quantitative composition, influencing the biological activity of mistletoe extracts, largely depends on the origin of the plant. The mistletoe extracts exhibited a rich phenol profile and high antioxidant activity. The chemometric analysis indicated that mistletoe collected from conifers (Viscum abietis and Viscum austriacum) had the most advantageous chemical composition and antioxidant activity. Moreover, the chemical profile and biological activity of the plant material were closely related to the climatic conditions and location of the harvested plant. Higher levels of phenolic compounds and high antioxidant activity were found in extracts obtained from plant material collected in cold weather with the presence of snow and less sunshine (autumn–winter period).

scholarly journals Wood-inhabiting fungal responses to forest naturalness vary among morpho-groups

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Purhonen Jenna ◽  
Abrego Nerea ◽  
Komonen Atte ◽  
Huhtinen Seppo ◽  
Kotiranta Heikki ◽  
...  
Keyword(s):  
Tree Species ◽  
Boreal Forests ◽  
Negative Impact ◽  
Important Variable ◽  
Host Tree ◽  
Conservation Areas ◽  
Fungal Community Composition ◽  
Forest Sites ◽  
Protected Forests ◽  
Host Tree Species

AbstractThe general negative impact of forestry on wood-inhabiting fungal diversity is well recognized, yet the effect of forest naturalness is poorly disentangled among different fungal groups inhabiting dead wood of different tree species. We studied the relationship between forest naturalness, log characteristics and diversity of different fungal morpho-groups inhabiting large decaying logs of similar quality in spruce dominated boreal forests. We sampled all non-lichenized fruitbodies from birch, spruce, pine and aspen in 12 semi-natural forest sites of varying level of naturalness. The overall fungal community composition was mostly determined by host tree species. However, when assessing the relevance of the environmental variables separately for each tree species, the most important variable varied, naturalness being the most important explanatory variable for fungi inhabiting pine and aspen. More strikingly, the overall species richness increased as the forest naturalness increased, both at the site and log levels. At the site scale, the pattern was mostly driven by the discoid and pyrenoid morpho-groups inhabiting pine, whereas at the log scale, it was driven by pileate and resupinate morpho-groups inhabiting spruce. Although our study demonstrates that formerly managed protected forests serve as effective conservation areas for most wood-inhabiting fungal groups, it also shows that conservation planning and management should account for group- or host tree -specific responses.

Host tree traits in pasture areas affect forest and pasture specialist epiphyte species differently

2021 ◽  
Author(s):  
João P. C. Elias ◽  
Sara R. Mortara ◽  
André F. Nunes‐Freitas ◽  
Eduardo Berg ◽  
Flavio N. Ramos
Keyword(s):  
Host Tree ◽  
Epiphyte Species ◽  
Tree Traits

scholarly journals Discrimination among host tree species by the ambrosia beetlePlatypus quercivorus

2012 ◽  
Vol 17 (2) ◽  
pp. 149-155 ◽  
Author(s):  
Michimasa Yamasaki ◽  
Kazuyoshi Futai
Keyword(s):  
Tree Species ◽  
Host Tree ◽  
Host Tree Species

Host Tree Location Behavior of a Tropical Vine (Monstera gigantea) by Skototropism

Science ◽  
1975 ◽  
Vol 190 (4216) ◽  
pp. 804-806 ◽  
Author(s):  
D. R. Strong ◽  
T. S. Ray
Keyword(s):  
Host Tree

Partitioning of soil respiration into its autotrophic and heterotrophic components by means of tree-girdling in old boreal spruce forest

2009 ◽  
Vol 257 (8) ◽  
pp. 1764-1767 ◽  
Author(s):  
Peter Högberg ◽  
Bhupinderpal-Singh ◽  
Mikaell Ottosson Löfvenius ◽  
Anders Nordgren
Keyword(s):  
Soil Respiration ◽  
Spruce Forest ◽  
Tree Girdling

Dispersal patterns of an Australian gall-forming thrips and its host tree (Oncothrips tepperi and Acacia oswaldii  )

2003 ◽  
Vol 28 (2) ◽  
pp. 243-246 ◽  
Author(s):  
Michael J. Mcleish ◽  
S. P. Perry ◽  
D. Gruber ◽  
T. W. Chapman
Keyword(s):  
Host Tree ◽  
Dispersal Patterns
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