scholarly journals Wildlife in Managed Forests — A Matter of Commitment

1986 ◽  
Vol 62 (4) ◽  
pp. 383-386 ◽  
Author(s):  
Jack Ward Thomas
Keyword(s):  
Wildlife Habitat ◽  
Environmental Concerns ◽  
Managed Forests ◽  
Managed Forest ◽  
Land Owners ◽  
Litmus Test ◽  
Forest Managers

Providing for wildlife habitat in managed requires commitment of forest managers and land owners. There will be costs associated with maintenance of wildlife habitats. Who bears those costs is a matter to be settled. The maintenance of wildlife in the managed forest is apt to be a litmus test for acceptable attention to environmental concerns by forest managers.

scholarly journals Can clearcuts increase bird species richness in managed forests?

2008 ◽  
Vol 54 (No. 4) ◽  
pp. 189-193
Author(s):  
M. Żmihorski
Keyword(s):  
Species Richness ◽  
Bird Species ◽  
Bird Communities ◽  
Cumulative Number ◽  
Managed Forests ◽  
Managed Forest ◽  
Bird Species Richness ◽  
Forest Interior ◽  
Transect Counts ◽  
The Difference

Clearcuts are one of the results of forest management. The aim of this study was to assess the effect of clearcuts on bird communities in a managed forest in Western Poland. I applied the method of point transect counts. 20 points were located near clearcuts (less than 100 m from the nearest clearcut) and 25 points in the forest interior. In total, 36 bird species were recorded. On average, I found 9.20 bird species at points located near clearcuts and 6.72 species at points situated in the forest interior, and the difference was significant. The cumulative number of bird species for a given number of sampling points in the vicinity of clearcuts was higher than in the forest interior. The obtained results indicate that in managed, even-aged forests the generation of clearcuts can lead to an increase in local bird species richness.

scholarly journals Additional Benefits of Community Managed Forest: A Case Study of Champadevi Community Forest

2012 ◽  
Vol 12 ◽  
pp. 127-132
Author(s):  
Bhanu B Panthi
Keyword(s):  
Carbon Sequestration ◽  
Significant Contribution ◽  
Research Area ◽  
Environmental Benefits ◽  
Managed Forests ◽  
Managed Forest ◽  
Community Based

This research attempts to identify the existing condition of the community managed forest based on the assumption that it will serve as a proxy for the condition of other forests in the mid hills region of Nepal. The research area has an atypical variation in altitude and diverse pattern of vegetation. This study mainly focuses on estimating carbon content in the forest and identifying the species that has more carbon storage capacity. The research signifies the role of forests in mitigation of ‘Global warming’ and ‘Climate change’ by storing carbon in tree biomass. These types of community based forest management programs are significant for their additional carbon sequestration through the avoidance of deforestation and degradation. The carbon sequestration have a significant contribution to environmental benefits, any shrinkage of forests have an enormous impact on CO2 emission with long term consequences. Thus, the development and expansion of community managed forests provide many benefits to the adjacent community and globally at large.DOI: http://dx.doi.org/10.3126/njst.v12i0.6490 Nepal Journal of Science and Technology 12 (2011) 127-32 

scholarly journals Opinions of Forest Managers, Loggers, and Forest Landowners in North Carolina regarding Biomass Harvesting Guidelines

2012 ◽  
Vol 2012 ◽  
pp. 1-15 ◽  
Author(s):  
Diane Fielding ◽  
Frederick Cubbage ◽  
M. Nils Peterson ◽  
Dennis Hazel ◽  
Brunell Gugelmann ◽  
...  
Keyword(s):  
North Carolina ◽  
Best Management Practices ◽  
Management Practices ◽  
Scientific Literature ◽  
Forest Health ◽  
Woody Biomass ◽  
Wildlife Habitat ◽  
Forest Landowners ◽  
Biomass Harvesting ◽  
Forest Managers

Woody biomass has been identified as an important renewable energy source capable of offsetting fossil fuel use. The potential environmental impacts associated with using woody biomass for energy have spurred development of biomass harvesting guidelines (BHGs) in some states and proposals for BHGs in others. We examined stakeholder opinions about BHGs through 60 semistructured interviews with key participants in the North Carolina, USA, forest business sector—forest managers, loggers, and forest landowners. Respondents generally opposed requirements for new BHGs because guidelines added to best management practices (BMPs). Most respondents believed North Carolina’s current BMPs have been successful and sufficient in protecting forest health; biomass harvesting is only an additional component to harvesting with little or no modification to conventional harvesting operations; and scientific research does not support claims that biomass harvesting negatively impacts soil, water quality, timber productivity, or wildlife habitat. Some respondents recognized possible benefits from the implementation of BHGs, which included reduced site preparation costs and increases in proactive forest management, soil quality, and wildlife habitat. Some scientific literature suggests that biomass harvests may have adverse site impacts that require amelioration. The results suggest BHGs will need to be better justified for practitioners based on the scientific literature or linked to demand from new profitable uses or subsidies to offset stakeholder perceptions that they create unnecessary costs.

Forest fragmentation and forest management: A plea for empirical data

2002 ◽  
Vol 78 (5) ◽  
pp. 686-689 ◽  
Author(s):  
Robert G G. D'Eon
Keyword(s):  
Forest Management ◽  
Forest Fragmentation ◽  
Habitat Loss ◽  
Spatial Patterns ◽  
Empirical Data ◽  
Landscape Scale ◽  
Managed Forests ◽  
Habitat Loss And Fragmentation ◽  
Theoretical Predictions ◽  
Forest Managers

Forest fragmentation is one of the most important conservation issues of recent times. Most of what we know about forest fragmentation is based on speculation and untested theory due to a paucity of empirical data. The lack of empirical data can be attributed to (1) the extreme difficulty in conducting good fragmentation studies, and (2) confusion between habitat loss and fragmentation effects. Empirical data from well-designed fragmentation studies is direly needed to validate theoretical predictions stemming from the fragmentation paradigm. Since the best data will come from landscape-scale experiments in managed forests, partnerships and support from researchers and forest managers is critical in this pursuit. Key words: empirical data, forest fragmentation, landscape spatial patterns

scholarly journals The Effect of Sanitation Felling on the Spread of the European Spruce Bark Beetle—An Individual-Based Modeling Approach

2021 ◽  
Vol 4 ◽  
Author(s):  
Bruno Walter Pietzsch ◽  
Felix Johannes Peter ◽  
Uta Berger
Keyword(s):  
Bark Beetle ◽  
Dispersion Model ◽  
Managed Forests ◽  
Managed Forest ◽  
Spruce Bark Beetle ◽  
Spruce Bark ◽  
Management Measures ◽  
Infestation Pattern ◽  
The Impact ◽  
European Spruce Bark Beetle

Sanitation felling is considered as the main measure to protect managed forests from damage due to outbreaks of the European Spruce Bark Beetle. In this study, we investigate the effectiveness of sanitation felling on stopping the spread of a bark beetle population from an un-managed to a managed forest area. For this, we advance an individual-based dispersion model of Ips typographus by adding the influence of wind on the beetle dispersion and by importing GIS data to simulate real world forests. To validate the new model version and to find reasonable parameter values, we conduct simulation experiments to reproduce infestation patterns that occurred in 2015, 2016, and 2017 within the national park Saxon Switzerland, Germany. With the then calibrated model IPS-SPREADS (Infestation Pattern Simulation Supporting PREdisposition Assessment DetailS), we investigate the impact of different factors such as the distance between beetle source trees and the forest border on the amount of damage within the managed forest stand and test the effectiveness of different levels of sanitation felling and its point of action on reducing the amount of damaged trees. As expected, the results of the model calibration show that the direction of wind plays an important role for the occurring infestation patterns and that bark beetle energy reserve is reduced during mass outbreaks. The results of the second experiment show that the main drivers for the amount of damaged trees are the primary attractiveness and the distance to beetle source trees. Sanitation felling effectiveness is highest when performed near the beetle source trees, with considerably high felling intensities and if there is at least some distance to the managed forest. IPS-SPREADS can be used in future studies as a tool for testing further management measures (e.g., pheromone traps) or to assess the risk for bark beetle infestations of forest areas near to wind-felled or already infested trees.

scholarly journals Using Alternative Silvicultural Systems to Integrate Mountain Caribou and Timber Management in British Columbia

Rangifer ◽  
1996 ◽  
Vol 16 (4) ◽  
pp. 141 ◽  
Author(s):  
Harold M. Armleder ◽  
Susan K. Stevenson
Keyword(s):  
British Columbia ◽  
Integrated Management ◽  
Managed Forests ◽  
Timber Management ◽  
Management Options ◽  
Single Tree ◽  
Alternative Silvicultural Systems ◽  
Silvicultural System ◽  
Maximum Development ◽  
Forest Managers

Even-aged forest management using the clearcutting silvicultural system as it is currently applied threatens mountain caribou habitat in British Columbia. Since neither complete preservation nor maximum development of timber resources are socially acceptable alternatives, forest managers are anxious to find integrated management options. We describe alternative silvicultural systems currently being tested, including single-tree and group selection. All the treatments have the goal of periodically extracting viable timber volumes while perpetually retaining stand characteristics necessary for caribou. The effects of these logging prescriptions on lichen biomass and growth rates are being tested. Alternative silvicultural systems may become part of a larger strategy to maintain caribou habitat in managed forests.

scholarly journals Beech (Fagus sylvatica L.) forests of a selection structure in the Bieszczady Mountains (southeastern Poland)

2012 ◽  
Vol 50 (No. 7) ◽  
pp. 301-312 ◽  
Author(s):  
A. Jaworski ◽  
Z. Kołodziej
Keyword(s):  
Fagus Sylvatica ◽  
National Park ◽  
Large Diameter ◽  
Growing Up ◽  
Managed Forests ◽  
Managed Forest ◽  
Selection Cutting ◽  
Natural Processes ◽  
Fagus Sylvatica L ◽  
Selection Forest

The characteristics of two beech (Fagus sylvatica L.) stands are presented in this paper. One, the Tarnicki stand, situated in the Bieszczadzki National Park, represents the growing up stage and selection phase of a forest of primeval character. The other one, the Otryt stand, is situated in managed forests of the Lutowiska Forest District. In each stand two sample plots were established. The distribution of the number of trees in each sample plot agreed with de Liocourt sequence and Meyer curve. Both stands were characterized by the structure of many generations. The Otryt stand, with respective volumes of 238 and 324 m<sup>3</sup>/hain two sample plots, was characterized by a lack of large diameter trees and a high percent of trees of the smallest diameters, while the Tarnicki stand, with volumes of 442 and 517 m<sup>3</sup>/ha, was characterized by the presence of large diameter trees (d<sub>1.3</sub> &ge; 72 cm). The phase of the selection forest in the Tarnicki stand is of temporary character because, due to natural processes, a two-storied structure may develop there, and with time, a one-storied structure in the optimal stage. In the Otryt stand, representing a managed forest, the maintenance of the selection structure may be expected due to selection cuttings. It has to be acknowledged that managed stands of characteristics similar to those presented in this paper makes it possible to carry out selection cutting, especially in the protection zone surrounding the Bieszczadzki National Park.

scholarly journals Impacts of Rotation Age Changes on Growth/Removals Ratios

2002 ◽  
Vol 26 (2) ◽  
pp. 72-77 ◽  
Author(s):  
Stephen P. Prisley ◽  
Andrew J. Malmquist
Keyword(s):  
Managed Forests ◽  
Inventory Data ◽  
Spreadsheet Model ◽  
Forest Condition ◽  
R Ratio ◽  
Wide Range ◽  
Critical Resource ◽  
Rotation Age ◽  
The Impact ◽  
Forest Managers

Abstract When forest managers and policymakers wish to assess the ability of a given forest resource to support a sustainable level of timber harvests, they frequently use growth/removals ratios (G/R) developed from forest inventory data. Recently published inventory data for forests of the southern United States have documented numerous states in which softwood harvests exceed softwood growth, raising concern over the sustainability of this critical resource. At the same time, forest managers in the South have been investing in a wide range of practices that have dramatically increased the growth rates for softwood plantations. As these growth increases are verified in the field, forest managers respond accordingly with adjustments to management regimes, including shortening of rotation lengths. This, in turn, means that the area of forest harvested annually must increase in a given forest estate to approach a regulated forest condition. The Timber Inventory, Growth, and Removals model (TIGR) is a spreadsheet model developed to evaluate the impact of shortening rotation length on the growth/removals ratios for managed forests. The model demonstrates that a temporary imbalance of removals over growth results when the rotation age is shortened. Hence, managers and policymakers should use caution when making inferences or public claims about sustainable harvest levels from growth/removals ratios alone. If the public has been convinced that G/R ratios greater than 1.0 imply sustainable harvests, then difficult explanations will be required when the G/R ratio drops below 1.0. South. J. Appl. For. 26(2):72–77.

scholarly journals Community Managed Forest Groups and Preferences for REDD+ Contract Attributes: A Choice Experiment Survey of Communities in Nepal

2016 ◽  
Vol 13 (1) ◽  
pp. 9-19
Author(s):  
Sahan T.M. Dissanayake ◽  
Prakash Jha ◽  
Bhim Adhikari ◽  
Rajesh Bista ◽  
Randall Bluffstone ◽  
...  
Keyword(s):  
Climate Change ◽  
Rural Communities ◽  
Choice Experiment ◽  
Forest Degradation ◽  
Institutional Structure ◽  
Institutional Arrangements ◽  
Managed Forests ◽  
Managed Forest ◽  
Community Forests ◽  
Contract Attributes

A significant portion of the world’s forests that are eligible for Reducing Emission from Deforestation and Forest Degradation (REDD+) payments are community managed forests. At the same time, there is a little knowledge in the existing literature about the preferences of households in the communities with community managed forests for REDD+ contracts.We use a choice experiment survey of rural communities in Nepal to understand the respondent’s preferences towards the institutional structure of REDD+ contracts. We split our sample across the communities with community managed forests groups and those without to see how the prior involvement in community managed forest groups’ impact preferences. Results show that respondents care about how the payments are divided between the households and the communities, the restrictions on firewood use, the restrictions on grazing and the level of payments. Finally we use a series of demographic interactions terms to analyze how the institutional arrangements and beliefs about climate change and benefits from the REDD+ program influence respondents’ beliefs. We find that there are no significant differences in the preferences for the REDD+ contract attributes between the Community Forests (CF) and non-CF respondent groups but we find that respondent groups differ in their beliefs about REDD+ payments and the institutional arrangements.Journal of Forest and Livelihood 13(1) May, 2015, Page : 8-19

scholarly journals Wälder ohne Bewirtschaftung: eine Chance für die saproxylische Biodiversität | Forests without harvesting: an opportunity for the saproxylic biodiversity

2009 ◽  
Vol 160 (11) ◽  
pp. 324-333 ◽  
Author(s):  
Rita Bütler ◽  
Thibault Lachat
Keyword(s):  
Forest Biodiversity ◽  
Managed Forests ◽  
Natural Forests ◽  
Old Growth ◽  
Wood Harvesting ◽  
Dead Trees ◽  
Veteran Trees ◽  
Large Trees ◽  
Diameter Classes ◽  
Forest Managers

Veteran trees and deadwood are key elements to maintain forest biodiversity. Setting aside protected forest areas and old-growth patches is a recent concept intended to favor deadwood dependent species. We compared forest areas where no harvesting occurred for at least 30 years with regularly managed forests, in order to assess the efficiency of such conservation measures. We collected data from 24 sites in Switzerland, where we inventoried dead trees and habitat structures such as cavities, cracks, bark pockets, etc. In unmanaged forests we found deadwood amounts of 98–143 m3 and 20 snags &gt; 30 cm DBH per hectare, one and half time more large trees (&gt; 60 cm DBH) und twice as many habitat structures as in managed forests. The latter had in average 15–19 m3 of deadwood and 3 snags &gt; 30 cm DBH per hectare. Deadwood amounts in unmanaged forests were similar to the ones in natural forests of central Europe. However, we found 10–50 times less veteran trees (&gt; 80 cm DBH) than in natural forests (1 vs. 0.2 trees per hectare in unmanaged vs. managed forests). For equal diameter classes, trees had more habitat structures in unmanaged than in managed forests. Forest managers plan to intensify wood harvesting in Swiss forests. Consequently, we recommend to urgently set aside protected forest areas and old-growth patches, to maintain and favor habitat trees in managed forests, and to introduce an efficient sustainable deadwood management in any forest.

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