Raccoon (Procyon lotor) Diurnal Den use within an Intensively Managed Forest in Central West Virginia

2015 ◽  
Vol 22 (1) ◽  
pp. 41-52 ◽  
Author(s):  
Sheldon F. Owen ◽  
Jacob L. Berl ◽  
John W. Edwards ◽  
W. Mark Ford ◽  
Petra Bohall Wood
Forests ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 988
Author(s):  
Anouschka R. Hof ◽  
Anna Zachrisson ◽  
Lina E. Polvi

The speed with which restoration will, or can, be accomplished depends on the initial state and location of the sites. However, many factors can undermine the process of choosing sites that are deemed the best ecological choice for restoration. Little attention has been paid to whether site selection follows ecological criteria and how this may affect restoration success. We used habitat inventory data to investigate whether ecological criteria for site selection and restoration have been followed, focusing on restoration for the white-backed woodpecker (Dendrocopos leucotos B.) in Sweden. In our study region, which is situated in an intensively managed forest landscape with dense and young stands dominated by two coniferous species, purely ecological criteria would entail that sites that are targeted for restoration would (1) initially be composed of older and more deciduous trees than the surrounding landscape, and (2) be at a scale relevant for the species. Furthermore, restoration should lead to sites becoming less dense and less dominated by coniferous trees after restoration, which we investigated as an assessment of restoration progress. To contextualize the results, we interviewed people involved in the restoration efforts on site. We show that although the first criterion for ecological site selection was largely met, the second was not. More research is needed to assess the motivations of actors taking part in restoration efforts, as well as how they interlink with public efforts. This would allow us to identify possible synergies that can benefit restoration efforts.


1988 ◽  
Vol 12 (2) ◽  
pp. 84-89 ◽  
Author(s):  
Alan A. Lucier

Abstract Forest inventory data collected by the USDA Forest Service shows that pine forests in the Southeast have changed in many ways since the 1950s. The average age and density of natural stands has increased substantially over the past 30 years, perhaps reflecting the maturation of a large number of stands established between 1945 and 1965. Growth rates of some classes of trees and stands have decreased, but it is not known whether increases in age and density are largely responsible. The existence of growth reductions in natural stands is an expected consequence of the documented changes in stand conditions. The magnitude of the growth reductions, however, cannot be objectively defined as normal or abnormal on the basis of existing data. Researchers are attempting to define the contributions of stand conditions, drought, land-use patterns, atmospheric pollutants, and other factors to observed growth reductions. There is at present no demonstrated link between air pollutants and growth reductions in natural pine stands and no evidence of growth reductions on intensively managed forest industry lands. South. J. Appl. For. 12(2):84-89.


2010 ◽  
Vol 40 (9) ◽  
pp. 1736-1750 ◽  
Author(s):  
Chris R. Hennigar ◽  
David A. MacLean

An integrated forest management optimization model was developed to calculate potential spruce budworm ( Choristoneura fumiferana Clemens) effects on forest and wood product carbon (C) from 2007 to 2057 and to evaluate potential C sequestration benefits of alternative management strategies (salvage, biological insecticide application). The model was tested using simulated spruce budworm outbreaks on a 210 000 ha intensively managed forest in northwestern New Brunswick, Canada. Under a severe spruce budworm outbreak scenario from 2007 to 2020, harvest volume and forest and wood product C storage in 2027 were projected to be reduced by 1.34 Mm3, 1.48 Mt, and 0.26 Mt, respectively, compared with the levels under no defoliation. Under the same severe outbreak scenario, implementation of salvage and harvest replanning plus a biological insecticide applied aerially to 40% of susceptible forest area, reduced harvest, forest C, and wood product C impacts by 73%, 41%, and 56%, respectively. Extrapolation of these results to all of New Brunswick suggests that a future severe spruce budworm outbreak could effectively increase total provincial annual C emissions (all sources) by up to 40%, on average, over the next 20 years. This modeling approach can be used to identify to what extent insecticide application, as a forest-C-offset project, could result in additional C storage than without forest and pest management.


2020 ◽  
Author(s):  
Christian Thiel ◽  
Clémence Dubois ◽  
Friederike Klan ◽  
Carsten Pathe ◽  
Christiane Schmullius ◽  
...  

<p>Citizen Science (CS) operates at the interface of engineering, natural and social sciences. The topic is currently gaining importance, which, from a political perspective, is based, among other things, on the hope of increasing the acceptance of science and scientific knowledge among the general public. The involvement of non-specialists in the conception and implementation of research projects enables and requires the development of innovative educational concepts that integrate knowledge transfer and added value to science, for example through citizen-based data acquisition. This win-win situation of active learning and the generation of research-relevant data can be implemented in educational institutions in particular by expanding didactic concepts with the integration of citizen science.</p><p>As an example, the project of the DLR in cooperation with the Friedrich Schiller University Jena will be presented. The campaign took place at site 15 km to the SE of Jena featuring planted and intensively managed forest. During the past two years the forest was affected by several stressors such as storm events, long drought periods (spring 2018 and 2019, summer 2018), and bark beetle attacks. Thus, forest management activities were conducted in June 2019 to remove stressed and infected trees. Two CS campaigns were conducted: one before (May) and one after (July) the management action (cross validation, check which trees were logged). The aim was to collect the stem circumference, the species, and other describing parameters. The citizens were “gathered“ from a university lecture for forthcoming Geography teachers. During the campaign a new approach for improved positioning under challenging GNSS conditions was tested (offset correction using Bluetooth low energy beacons – BLE).</p>


2021 ◽  
Vol 12 ◽  
Author(s):  
Lilian P. Matallana-Ramirez ◽  
Ross W. Whetten ◽  
Georgina M. Sanchez ◽  
Kitt G. Payn

Earth’s atmosphere is warming and the effects of climate change are becoming evident. A key observation is that both the average levels and the variability of temperature and precipitation are changing. Information and data from new technologies are developing in parallel to provide multidisciplinary opportunities to address and overcome the consequences of these changes in forest ecosystems. Changes in temperature and water availability impose multidimensional environmental constraints that trigger changes from the molecular to the forest stand level. These can represent a threat for the normal development of the tree from early seedling recruitment to adulthood both through direct mortality, and by increasing susceptibility to pathogens, insect attack, and fire damage. This review summarizes the strengths and shortcomings of previous work in the areas of genetic variation related to cold and drought stress in forest species with particular emphasis on loblolly pine (Pinus taeda L.), the most-planted tree species in North America. We describe and discuss the implementation of management and breeding strategies to increase resilience and adaptation, and discuss how new technologies in the areas of engineering and genomics are shaping the future of phenotype-genotype studies. Lessons learned from the study of species important in intensively-managed forest ecosystems may also prove to be of value in helping less-intensively managed forest ecosystems adapt to climate change, thereby increasing the sustainability and resilience of forestlands for the future.


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