Seasonal Movements of Female Black Bears in the Boreal Forest of Ontario in Relation to Timber Harvesting

1994 ◽  
Vol 9 ◽  
pp. 363
Author(s):  
Martyn E. Obbard ◽  
George B. Kolenosky
Keyword(s):  
Boreal Forest ◽  
Timber Harvesting ◽  
Black Bears ◽  
Seasonal Movements

Denning Behavior of Black Bears in Boreal Forest of Alberta

1980 ◽  
Vol 44 (4) ◽  
pp. 858 ◽  
Author(s):  
William D. Tietje ◽  
Robert L. Ruff
Keyword(s):  
Boreal Forest ◽  
Black Bears

Opportunities and costs of intensification and clustering of forest management activities

2008 ◽  
Vol 38 (4) ◽  
pp. 711-720 ◽  
Author(s):  
Anne-Hélène Mathey ◽  
Emina Krcmar ◽  
John Innes ◽  
Ilan Vertinsky
Keyword(s):  
Forest Management ◽  
Boreal Forest ◽  
Timber Harvesting ◽  
Conservation Areas ◽  
Intensive Forest Management ◽  
Trade Offs ◽  
Planning Approach ◽  
Increasing Demand ◽  
Canadian Boreal Forest ◽  
The Cost

The intensification of forest management in Canada has been advocated as a possible solution to the conundrum that increasing demand for conservation areas and increasing pressure for timber production have created. The benefits and disadvantages of intensive forest management in the context of the Canadian boreal forest are unclear and reaching conclusions about its general value from stand analyses may be difficult. In this study, a boreal forest in Ontario has been used to investigate the potential of intensive management to generate financial revenues and meet management constraints on volume flow and old-growth retention. Two aspects of intensive forest management are considered: intensive silviculture and concentrated harvest activities. The plans are generated with a decentralized planning approach based on cellular automata. The results for the case study show that increasing silviculture intensity can help fulfill high timber flow requirements under strict conservation requirements. This comes at the cost of reduced net revenues but from a smaller timber harvesting landbase. The main trade-offs found were those between harvest flow and financial benefits. Clustering both protected areas and harvest operations could help achieve the conservation and timber-related objectives simultaneously by improving the habitat value of conserved areas and decreasing the operational costs in harvested areas.

scholarly journals Lichens and allied fungi of Sandbar Lake Provincial Park, Ontario

2020 ◽  
Vol 133 (3) ◽  
pp. 206-215
Author(s):  
Hanna R. Dorval ◽  
Richard Troy McMullin
Keyword(s):  
Boreal Forest ◽  
Conservation Status ◽  
Timber Harvesting ◽  
Resource Extraction ◽  
Conservation Value ◽  
Natural Forests ◽  
Lichen Diversity ◽  
Northwestern Ontario ◽  
Lichen Biota ◽  
Provincial Park

Sandbar Lake Provincial Park (Sandbar Lake) covers 8053 ha in the boreal forest in northwestern Ontario. Within the park boundary are natural forests representative of those in the region, as well as forests that are heavily disturbed from resource extraction activities, which are prevalent in northwestern Ontario. The lichen biota in this part of the boreal forest is known to be rich and abundant, but lichen diversity is also known to be negatively impacted by disturbances (e.g., timber harvesting, mining, and climate change). Therefore, lichens can be used to monitor the effects of these disturbances, but baseline data are required. Here, we present the results of the first detailed inventory of the lichens and allied fungi of Sandbar Lake. We report 139 species in 69 genera from 16 sites that represent all macrohabitats present in the park. Seven species have a provincial conservation status rank from S1 to S3 (critically imperilled to vulnerable), and one species, Arthrosporum populorum, has previously been collected only once in northwestern Ontario. Our results fill biogeographic gaps for many species and allow lichens to be used as biomonitors during further study at Sandbar Lake. We show that Sandbar Lake has important conservation value, and our data provide an opportunity for further study in an area with no previous research on lichens.

The response of boreal forest songbird communities to fire and post-fire harvesting

2002 ◽  
Vol 32 (12) ◽  
pp. 2169-2183 ◽  
Author(s):  
J L Morissette ◽  
T P Cobb ◽  
R M Brigham ◽  
P C James
Keyword(s):  
Boreal Forest ◽  
Populus Tremuloides ◽  
Pinus Banksiana ◽  
Management Strategies ◽  
Distinct Species ◽  
Timber Harvesting ◽  
Jack Pine ◽  
Economic Losses ◽  
Salvage Logging ◽  
The Impact

Post-fire timber harvesting (salvage logging) is becoming more prevalent as logging companies try to recover some of the economic losses caused by fire. Because salvaging is a relatively new practice and because of the common perception that burned areas are of little value to wildlife, few guidelines exist for salvaging operations. We surveyed birds in unburned and burned stands of jack pine (Pinus banksiana Lamb.), mixedwood, and trembling aspen (Populus tremuloides Michx.) to characterize the post-fire bird community in commercially important forest types. The effects of salvage logging were examined in mixedwood and jack pine. Using fixed-radius point counts, a total of 1430 individuals representing 51 species were detected during this study. Community analysis revealed that burned forests supported a distinct species assemblage of songbirds relative to unburned forests and that salvage logging significantly altered this community. An examination of guild composition showed that resident species, canopy and cavity nesters, and insectivores were the least likely to be detected in salvaged areas. Species less sensitive to salvage logging tended to be habitat generalists, omnivores, and species that nest on the ground or in shrubs. We suggest alternative management strategies that may help reduce the impact of salvage logging on the boreal forest songbird community.

Demography of Black Bears in Hunted and Unhunted Areas of the Boreal Forest of Ontario

2008 ◽  
Vol 72 (4) ◽  
pp. 869-880 ◽  
Author(s):  
Martyn E. Obbard ◽  
Eric J. Howe
Keyword(s):  
Boreal Forest ◽  
Black Bears

scholarly journals Comparing Effects of Climate Warming, Fire, and Timber Harvesting on a Boreal Forest Landscape in Northeastern China

PLoS ONE ◽  
2013 ◽  
Vol 8 (4) ◽  
pp. e59747 ◽  
Author(s):  
Xiaona Li ◽  
Hong S. He ◽  
Zhiwei Wu ◽  
Yu Liang ◽  
Jeffrey E. Schneiderman
Keyword(s):  
Boreal Forest ◽  
Climate Warming ◽  
Timber Harvesting ◽  
Northeastern China ◽  
Forest Landscape

Salvage logging after wildfire in the boreal forest: Is it becoming a hot issue for wildlife?

2004 ◽  
Vol 80 (1) ◽  
pp. 67-74 ◽  
Author(s):  
A. Nappi ◽  
P. Drapeau ◽  
J -P.L. Savard
Keyword(s):  
Boreal Forest ◽  
Boreal Forests ◽  
Sustainable Forest Management ◽  
Timber Harvesting ◽  
Salvage Logging ◽  
Spatial And Temporal Scales ◽  
Current State ◽  
Management Plans ◽  
Wood Demand ◽  
Xylophagous Insects

In recent years, the increase in wood demand, the reduction in the availability of timber resources and the northern expansion of timber harvesting, along with the general perception that wildfires create ecological disasters, have favoured an increase in salvage logging in burned boreal forests. Concurrently, pioneer studies have shown that these post-fire forests may represent important habitats for several wildlife species and that intensive salvage logging, by removing standing snags, has several impacts on wildlife. However, the effects of salvage logging on biodiversity have yet to be considered in post-fire management plans. We examine the issue of salvage logging for wildlife in the boreal forest, with particular reference to Québec as an example. We describe our current state of knowledge on the use of burned forests by some wildlife and on the impacts of salvage logging on these habitats. We conclude that snag retention at multiple spatial and temporal scales in recent burns, which will be salvage-logged, is a prescription that must be implemented to meet the principles of sustainable forest management and the maintenance of biodiversity in the boreal forest. Key words: boreal forest, post-fire forests, salvage logging, snags, wildlife, birds, cavity-nesting birds, woodpeckers, mammals, invertebrates, xylophagous insects, biodiversity

Habitat selection by black bears in an intensively logged boreal forest

2008 ◽  
Vol 86 (11) ◽  
pp. 1307-1316 ◽  
Author(s):  
Vincent Brodeur ◽  
Jean-Pierre Ouellet ◽  
Réhaume Courtois ◽  
Daniel Fortin
Keyword(s):  
Habitat Selection ◽  
Home Range ◽  
Boreal Forest ◽  
Forest Cover ◽  
Spatial Scales ◽  
Space Use ◽  
Black Bear ◽  
Black Bears ◽  
Ground Vegetation ◽  
Use Patterns

Extensive logging of the boreal forest rejuvenates landscapes once dominated by old-growth stands. As black bear ( Ursus americanus Pallas, 1780) fitness and behavior are known to be primarily related to the abundance of shade-intolerant soft mast species in northern forests, we hypothesized that logging will influence habitat and space use patterns of black bears. We used VHF telemetry on 12 female black bears in the Réserve faunique des Laurentides (Quebec, Canada) to investigate seasonal patterns of habitat selection in an exploited heterogeneous boreal landscape at different spatial scales. Habitat characterization based on seven forest cover types allowed us to compare the productivity of key forage species in various post-logging age classes. Regenerating stands (6–20 years old) had the uppermost ground vegetation cover, providing both the highest density and a high biomass of berries. Black bears preferred regenerating stands (6–20 years old) and avoided mature coniferous forests inside their home range. Home-range size was inversely related to the proportion of regenerating stands (6–20 years old). Intensive logging influenced black bear habitat and space use patterns, and presumably their population dynamics. An increase in the habitat quality of an opportunistic predator poses great concern for conservation, especially for forest-dwelling woodland caribou ( Rangifer tarandus caribou (Gmelin, 1788)).

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