Forestry

Straight lines or eccentric eggs? A comparison of radial and spatial ring width measurements and its implications for climate transfer functions
Shrub dendrochronological investigations are recently gaining more and more importance within the dendro-scientific community. As being a rather young discipline, many means of shrub dendrochronology lean on established methods that have been developed for trees. Although shrubs as trees are woody plants, it seems likely that they express differing growth characteristics due to their often mult...


The basis of resilience in forest tree species and its use in adaptive forest management in Britain
Forest ecosystems face a range of challenges in the coming decades, of which climate change, pests and diseases are the most serious. These challenges will be overlaid on a background of historically modified and fragmented forests managed in a wide range of ways for different objectives. As northern temperate forests are species-poor in a global context, their resilience to these challenges is...
Development of microsatellites for the cacao frosty pod rot pathogen, Moniliophthora roreri
Moniliophithora roreri, causal agent of cacao frosty pod rot, is considered one of the most devastating pathogens of this crop. In this study, we report the development of and validation of 28 microsatellite loci from an enriched library. From these, ten loci were demonstrated to be polymorphic in an Ecuadorian population composed of 27 isolates. The mean number of alleles per locus was 3.2, an...


Species richness, endemism and species composition in the tropical Afroalpine flora
Plant species richness and endemism on oceanic islands is dependent on island age, size, elevation and distance to nearest source of migrants. Mainland ‘island’ systems, such as the cool-adapted tropical-alpine flora of the mountains in Africa, are less well studied. Here we analyse the tropical Afroalpine flora, found on highly isolated mountains straddling the equator. Using the β-sim in...
Bark Beetle Demography in a Jeffrey Pine Stand as Influenced by Mechanized Thinning and Prescribed Fire
Forest thinnings implemented with cut-to-length and whole-tree harvesting systems followed by underburning were evaluated for their effects on bark beetle prevalence in pure, uneven-aged Jeffrey pine (Pinus jeffreyi Grev. & Balf.) interspersed with isolated California white fir (Abies concolor var. lowiana Lemm.). Based on pitch tube counts in a stand with a moderate bark beetle population ...


Institutions and access to woodfuel commerce in the Democratic Republic of Congo
A new generation of woodfuel studies focuses on the political dynamics behind access to the woodfuel trade, providing better insights into patterns of inclusion and exclusion and options for resource management. Institutional mechanisms that govern access are difficult to untangle in the context of informal trade. This paper analyzes institutions and how they regulate access to commercialize wo...
Transnational self-help networks and community forestry: A theoretical framework
Global forest governance is generally analyzed as highly fragmented, meaning that it involves a multiplicity of actors and institutions. This fragmentation may be one explanation of the proliferation of multiple discourses around forest governance produced by some dominant actors. In this context, community forestry organizations are seeking, through their association in the form of transnation...

Towards co-ownership in forest management: Analysis of a pioneering case ‘Bosland’ (Flanders, Belgium) through transition lenses
Forest management in Western-Europe is evolving towards multifunctionality and higher levels of sustainability. Co-owned forest managing models, where different owners collaborate and forest users participate however, are still rather an exception of a rule. Bosland (literally forest-land) in Flanders (Belgium) is a statutory partnership of several public forest owners and stakeholders, managin...
The temperature behaviour inside the mat of wood-based panel during hot pressing under various manufacturing conditions
This study focused on the heat transfer involved in hot pressing. The temperature behaviour inside the mat of wood-based panels according to the manufacturing conditions—such as mat moisture level, furnish material, and press temperature—was characterised. Hinoki strands and ring-flaker recycled wood particles were used for experimental panel production. Temperature behaviour was measured a...

Dynamics of understory vegetation after restoration of natural characteristics in the boreal forests in Finland
Restoration of boreal coniferous forests is used in Northern Europe to increase the natural variability of forest structure and to add coarse woody debris for red-listed dead-wood dependent species, mainly insects and fungi. In four protection areas of eastern Finland, we evaluated how three commonly used restoration methods (felling with chainsaw, storm simulation, and felling with burning) wi...
Management implications of long-term tree growth and mortality rates: A modeling study of big-leaf mahogany (Swietenia macrophylla) in the Brazilian Amazon
Knowledge of tree age-size relationships is essential towards evaluating the sustainability of harvest regulations that include minimum diameter cutting limits and fixed-length cutting cycles. Although many tropical trees form annual growth rings and can be aged from discs or cores, destructive sampling is not always an option for valuable or threatened species. We used an individual-based popu...

Can shrub species with higher litter quality mitigate soil acidification in pine and oak forests on poor sandy soils?
This study, aiming to unravel whether topsoil conditions under tree species with nutrient-poor leaf litter can be altered by admixing a shrub layer, was performed in 12 pine (mainly Pinus sylvestris) and 12 oak (Quercus robur) stands on sandy podzolic soils in north-east Belgium. We examined the effects of presence of a shrub layer on forest floor mass and topsoil chemical properties related to...
Two-year throughfall and fertilization effects on leaf physiology and growth of loblolly pine in the Georgia Piedmont
Loblolly pine is the most extensively planted and productive commercial pine species in the southeastern United States, but future increases in drought frequency and intensity may affect plantation productivity. To better understand the potential impacts of reduced precipitation on loblolly pine productivity, the interactive effects of throughfall (ambient versus an approximate 30% reduction) a...
Development of 18 microsatellite markers in Pieris japonica, a poisonous tree insulated from the browsing pressure of herbivores, using a next-generation sequencer
Pieris japonica is a poisonous tree species that is rarely eaten by herbivorous animals, which could allow it to expand its distribution and change ecosystems. Using a next-generation sequencer, 18 microsatellite markers were isolated from P. japonica and characterized. The number of alleles at each locus ranged from 2 to 1The observed and expected heterozygosities ranged from 0.13 to 1.00 and ...
Exploring High Frequency densitometry calibration functions for different tree species
Wood density is a trait of paramount importance for the assessment of wood quality, in dendroclimatology and in attempts to enhance biomass and carbon estimations. X-ray densitometry is the established but costly and time consuming method for high resolution measurements of wood density. An inexpensive and rapid alternative is High Frequency (HF) densitometry, which until now has only been yiel...