Animal diversity in beech forests – An analysis of 30 years of intense faunistic research in Hessian strict forest reserves

2021 ◽  
Vol 499 ◽  
pp. 119564
Author(s):  
Alexander Schneider ◽  
Theo Blick ◽  
Frank Köhler ◽  
Steffen U. Pauls ◽  
Jörg Römbke ◽  
...  
2012 ◽  
Vol 163 (2) ◽  
pp. 49-56 ◽  
Author(s):  
Markus Müller ◽  
Thibault Lachat ◽  
Rita Bütler

How large should old-growth islands be? About 5% of the Swiss forest surface should be protected as natural forest reserves or as old-growth islands until 2030. This goal, which has been formulated by the Federal Office for the Environment and by the cantons, aims to promote the natural development of the forest and to conserve saproxylic species. Beside large-sized natural forest reserves, smaller old-growth islands may also play an important role. A bootstrapping method has been developed to define the minimal size of old-growth islands based on a field inventory in high forests without logging since at least 30 years. Three different indicators for habitat structures have been used to establish the ecological potential of old-growth islands: the total number of habitat structures, the amount of deadwood and the number of woodpecker trees. The threshold has been defined as the average of each indicator minus the standard error for different forest types. The surface of an island is determined at the point where 75% of the modeled surfaces are above the threshold, which guarantees a certain ecological potential. This surface reaches 0.7 ha for floodplain forests, 0.9 ha for beech and fir-beech forests and 1.2 ha for silver spruce-fir forests. The computed values are minimal rather than optimal surfaces for old-growth islands. With an increase of the surface, sustainability, quantity and quality of the habitats will be improved. Therefore, the size of old-growth islands should be larger whenever the local circumstances are favorable.


2018 ◽  
Vol 48 (Supplementum 2) ◽  
pp. 59-71
Author(s):  
A. Beylich ◽  
U. Graefe

2012 ◽  
Vol 163 (6) ◽  
pp. 222-231 ◽  
Author(s):  
Steffen Herrmann ◽  
Malgorzata Conder ◽  
Peter Brang

Deadwood volume and quality in selected swiss natural forest reserves Deadwood is structurally and functionally important for forest ecosystems. To date, there are hardly any data on the amount of deadwood in Swiss natural forests which can serve as reference value for deadwood management in managed forests. In this study, deadwood volumes and qualities (sizes, broadleaf/conifer ratios, decomposition stages) from six natural forest reserves were analysed and compared with data from managed forests as well as from natural and virgin forests. An average of 69 m3/ha with a broadleaf proportion of 66% was calculated for the six reserves. Deadwood volume in relation to the total volume was 12% on average. Overall the volume of lying deadwood was double the volume of standing deadwood. The average proportion of large deadwood (diameter >30 cm) was 48% and was higher in snags (52%) than in lying deadwood (46%). Advanced stages of decomposition made up 53% of the lying deadwood. The volumes, sizes and decomposition stages varied greatly within the reserves. In comparison, in the Swiss forests altogether, there is less deadwood (21.5 m3/ha, 5% of total volume), the deadwood is thinner (35% large deadwood proportion) and less decayed (proportion of advanced stages of decomposition 10%). However, deadwood volumes in the reserves are considerably lower than those in European natural beech forests and beech virgin forests. The investigated reserves are therefore, 40 to 92 years after the last silvicultural intervention, only at the beginning of the process of acquiring a virgin forest character.


2013 ◽  
Vol 45 (2) ◽  
pp. 239-246
Author(s):  
Dominika Ślusarczyk

The results of research into slime moulds in beech forest reserves in Central Poland are discussed. Thirty species of slime moulds directly associated with beech wood and beech litter were recorded. Species associated with different decay phases of beech wood and litter were identified.


2013 ◽  
Vol 47 ◽  
pp. 215-221 ◽  
Author(s):  
A. B. Ismailov ◽  
G. P. Urbanavichus

49 lichen species and 2 species of non-lichenized saprotrophic fungi are recorded for the first time in beech forests of the south-eastern part of piedmont Dagestan. Among them, 34 species and 9 genera are new to Dagestan Republic, and 2 species, Diplotomma pharcidium (Ach.) M. Choisy and Rinodina albana (A. Massal.) A. Massal., are new to Caucasus Mountains.


Fact Sheet ◽  
2003 ◽  
pp. 1-4
Author(s):  
John Tappeiner ◽  
Nathan Poage ◽  
Janet L. Erickson

2005 ◽  
Vol 156 (12) ◽  
pp. 481-486 ◽  
Author(s):  
Jurij Diaci ◽  
Lahorka Kozjek

The objective of our research was to examine the effect of canopy shading on beech sapling architecture in the oldgrowth silver fir-beech forests of Pecka and Rajhenavski Rog. In August 2003 we sampled one plot (352 m2) in a large gap in Pecka, which was a result of a strong windstorm in 1983, and eight small gaps (26–78 m2) with similar sapling heights (3.8–8 m). A ground view of each gap was drawn including the characteristics of gap border trees and the density of separate sapling layers was recorded. The height and diameter were measured for each sapling, as well as the following quality characteristics on selected dominant saplings: width of the crown,number of larger branches and knots (>1/3 DBH), intensity of stem bending, deviation from vertical growth, number of terminal shoots, and the type of damage. The results show a negative effect of high canopy shading (estimated relative light intensity was below 5%) on the architectural quality of saplings. A lower overall density of saplings, greater intensity of bending and deviation from vertical growth, a shorter stem length without branches, a larger number of saplings with two terminal shoots, and a larger number of damaged saplings were observed in small gaps.


2010 ◽  
Vol 161 (8) ◽  
pp. 286-290
Author(s):  
Adrian Borgula

Where nature protection is concerned, the expert assessment of an environment poses questions about its natural and cultural heritage and its potential, about how representative it may be, about biodiversity in all its facets and about its development or potential threats to its existence. Although the forest was the dominant habitat in the original natural European landscape, for a long time nature protection has devoted too little attention to it. There are diverse threats and deficiencies. However, in the Swiss forests positive developments are discernible. Thus nature protection is one of the basic functions of the forest, nature reserves are being created, the area of the forest is increasing, as are reserves of deadwood, and greater importance is being given to regeneration suited to the site. Nevertheless much remains to be done to really achieve the goal of biodiversity and sus-tainability. For this purpose segregative and integrative measures are required. Since diversity needs surface area, in the first place it must be possible to set aside as forest reserves a quarter of the total forest area, spread over the whole country and preferably as natural forest reserves, in order to start the process of a long-term restoration to the natural state. Here the conservation of natural self-regulating processes supersedes classical nature protection. With a series of further integrative measures, biodiversity must also be promoted over the whole remaining forest area and in the areas of transition to other habitats. An abundance of varied structures is the key to diversity of species. A more courageous attitude to wilderness and “untidiness” when dealing with the forest is to be recommended. Nature experiences in wilderness areas give the population the possibility of discovering diversity and natural processes and encourage respect for the innumerable other species and habitats.


2012 ◽  
Vol 163 (6) ◽  
pp. 240-246 ◽  
Author(s):  
Thomas A. Nagel ◽  
Jurij Diaci ◽  
Dusan Rozenbergar ◽  
Tihomir Rugani ◽  
Dejan Firm

Old-growth forest reserves in Slovenia: the past, present, and future Slovenia has a small number of old-growth forest remnants, as well as many forest reserves approaching old-growth conditions. In this paper, we describe some of the basic characteristics of these old-growth remnants and the history of their protection in Slovenia. We then trace the long-term development of research in these old-growth remnants, with a focus on methodological changes. We also review some of the recent findings from old-growth research in Slovenia and discuss future research needs. The conceptual understanding of how these forests work has slowly evolved, from thinking of them in terms of stable systems to more dynamic and unpredictable ones due to the influence of natural disturbances and indirect human influences. In accordance with this thinking, the methods used to study old-growth forests have changed from descriptions of stand structure to studies that address natural processes and ecosystem functions.


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