Results 71 to 80 of about 1,349,616 (217)

Changes Caused by Heat Treatment in Color and Dimensional Stability of Beech (Fagus sylvatica L.) Wood

open access: yesDrvna Industrija, 2014
Thermal modification of wood permanently alters several of its chemical and physical properties. Beech wood is one of the most important hardwoods in Central and Eastern Europe and is extensively used in furniture production. In this study the effects of
Ioannis Barboutis
doaj   +1 more source

The virgin forests of the Synevyr National Nature Park, Ukraine: its current condition and biodiversity

open access: yesEnvironmental & Socio-economic Studies, 2022
Among the protected sites of the Eastern Carpathians, the Synevyr National Nature Park (NNP) in the Zakarpattia region of Ukraine is one of the most valuable and was created to preserve its unique mountain beech and spruce forest communities.
Ustymenko Pavlo M.   +2 more
doaj   +1 more source

Exploiting Native Biodiversity for Invasive Species Management: The Case of Exorista larvarum as a Natural Enemy of the Invasive Box Tree Moth Cydalima perspectalis

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
The investigations evaluated the performance of the native parasitoid Exorista larvarum (L.) on last instar Cydalima perspectalis (Walker) larvae, using the factitious host Galleria mellonella (L.) as a control. Laboratory bioassays were conducted using no‐choice and choice (1:1 and 5:5) experimental designs.
Serena Gallizia   +3 more
wiley   +1 more source

Canopy position and tree size structure the distribution of honeydew‐producing scale insects (Hemiptera: Coccoidea) in a temperate hardwood forest

open access: yesEcological Entomology, EarlyView.
Scale insect abundance peaked in the upper canopy of sugar maples. Parthenolecanium peaked on older internodes; Lepidosaphes on the current leader. Internodes longer than the previous carried more scales; wider ones fewer. Abstract Forest canopies are vertically stratified habitats in which microclimate and host tissue quality vary with height.
Susan M. Frye   +2 more
wiley   +1 more source

Morphological and physiological characteristics of seedlings of different eastern beech (Fagus orientalis Lipsky.) populations

open access: yesTurkish Journal of Forestry | Türkiye Ormancılık Dergisi, 2019
The ecological conditions of nurseries can have an impact on both morphological and physiological characteristics of seedlings and may affect their development. Furthermore, the genetic characteristics of the populations adapted to the conditions of the growing environment, also influence the development of the seedlings. In this study, seeds collected
GULSEVEN, Orhan   +3 more
openaire   +4 more sources

Patterns of genetic diversity in European beech (Fagus sylvatica L.) at the eastern margins of its distribution range

open access: yesiForest - Biogeosciences and Forestry, 2017
Populations located at the periphery of the species’ distribution range may play an important role in the context of climate change. These peripheral populations may contain specific adaptations as a result of extreme environmental conditions. The aim of
Ciocîrlan E   +3 more
doaj   +1 more source

Local habitat, not landscape diversity, drives richness and reproduction of cavity‐nesting bees and wasps in agricultural landscapes

open access: yesInsect Conservation and Diversity, EarlyView.
Local habitat type and hedgerow cover strongly shape bee and wasp richness, but only weakly their reproductive output, outweighing the landscape diversity effects at the 1‐km2 scale. Forests host more wasp but fewer bee species, whereas orchards support high richness of both; bee reproduction patterns are driven by one dominant species, while wasp ...
Sara Tassoni   +5 more
wiley   +1 more source

Dragonfly taxonomic and functional responses to urbanized streams in southeastern Europe, with management recommendations

open access: yesInsect Conservation and Diversity, EarlyView.
Urbanization drives turnover in dragonfly species composition, traits, and habitat conservation value. Natural stream sections have a higher conservation value (higher DBI) due to presence of specialists. Properly managed urban streams can support diverse dragonfly assemblages.
Marina Vilenica   +5 more
wiley   +1 more source

Investigating the quantitative characteristics of eastern beech in relation to topographic factors in forests of Asalem Nav

open access: yesبیولوژی کاربردی, 2021
Background: The fagus orientalis lipesky species includes around one-third of width and correspondingly, the standing volume in the mixed and partly pure stands of northern forests of Iran.. Present research has been carried out to investigate the effects of topographic factors on quantitative characteristics of oriental beech species in Nav Asalem ...
Alireza Eslami, Fatemeh Badr
openaire   +1 more source

Your role in the new Eastern Regional Health Authority

open access: yes, 1999
partnership for excellence! l=he Eastern HealtH Ba rd is to be dissolved and replaced by a new Eastern Regional Health uthority (ERHA) and three new Area Health Boards, under legislation which has been passed by the Oireachtas.
Eastern Health Board
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