One of the largest threats to biodiversity is land use change and habitat loss. Hollow oaks (Quercus spp. L.) are well-defined patches that are hotspots for biodiversity and red-listed species, but they are often rare and fragmented in the landscape. We investigated the effect of patch size, habitat quality, and isolation on functional groups and red-listed saproxylic beetles in hollow oaks (n ...

Pulse-labelling of trees with stable or radioactive carbon (C) isotopes offers the unique opportunity to trace the fate of labelled CO(2) into the tree and its release to the soil and the atmosphere. Thus, pulse-labelling enables the quantification of C partitioning in forests and the assessment of the role of partitioning in tree growth, resource acquisition and C sequestration. However, this ...

Abstract. Mercury, Hg, is one of the most problematic metals from an environmental perspective. To assess problems caused by Hg in environment, it crucial to understand processes biogeochemistry, but exchange between atmosphere and vegetation not sufficiently well characterized. We explored mercury concentration, [Hg], foliage a diverse set plant types, locations sampling periods study whether ...

Abstract Pruning is a necessary part of tree management both in silvicultural systems and urban forestry. For the wood industry’s production high-quality timber, as well for forest’s risk reduction ecosystem services enhancements, it essential that pruning accurately implemented. This study aimed to determine effect season on discoloration amount occlusion rate four broadleaved species. In 2014...

Little attention has been paid to the impact of vertical canopy position on leaf spectral properties tall trees, and few studies have explored ability spectra characterize variation traits across different positions. Using a tower crane, we collected samples from three layers (lower, middle, upper) measured eight (equivalent water thickness, specific area, carbon content, nitrogen phosphorus ch...

Red alder (Alnus rubra Bong.) is the most abundant deciduous broadleaved tree species in coastal British Columbia. It is a source of products ranging from firewood to furniture, cabinets, and turned-wood novelties (Plank and Willits 1994). In addition, red alder seedlings are planted to restore roads and landings, to stabilize slides, and to reduce laminated root rot (Phellinus weirii) on infec...

Models of forest energy, water and carbon cycles assume decreased stomatal conductance with elevated atmospheric CO2 concentration ([CO2]) based on leaf-scale measurements, a response not directly translatable to canopies. Where canopy-atmosphere are well-coupled, [CO2 ]-induced structural changes, such as increasing leaf-area index (LD), may cause, or compensate for, reduced mean canopy stomat...

Large wild herbivores are important and natural components of forest ecosystems, but through their browsing activities have the potential to influence structure composition communities, thus timber production ecosystem dynamics. To examine effects by on a young post-disturbance in Kysuce region northwestern Slovakia, we established two sets 2 m radius plots, 15 within fenced area (5.12 ha) that...

Lianas account for a small fraction of forest biomass, but their contribution to leaf or litter biomass and thus food webs can be substantial. Globally liana exhibit fast life-history traits. Thus, may decompose faster than tree litter, could enhance the decomposition (complementarity effect). The differences in also vary with mesofauna access across communities. these factors nutrient biogeoch...

Abstract Land use change and intensification are the most important direct drivers of decreasing biodiversity globally. Therefore, European Union created Natura 2000 network to protect endangered species habitats. Here we interested how ambitious goals actually implemented studying a habitat, “Sarmatic steppe pine forests” (Code 91U0) in national hotspot Franconia (Germany). These forests relic...