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Jennifer Dacosta

Jennifer Dacosta

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20
Publications
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174
Citations

Publications

Publications (20)
Article
Full-text available
Although exotic (i.e., non-native) plant species are among the main factors contributing to ecosystem change globally, investigations of northern temperate and boreal forest ecosystems in North America in the context of invasion science are scarce. Multiple hypotheses, including the ‘biotic resistance’, ‘intermediate disturbance’ and ‘disturbance-m...
Article
Full-text available
In recent decades, retention forestry has become an increasingly popular management approach. Previous research has demonstrated that persistence of retained live trees (residuals) is higher when they are larger and more densely packed. Beyond density, minimal research has been done on how differing silviculture treatments post-harvest affect the p...
Article
Full-text available
In the past two decades, forest management has undergone major paradigm shifts that are challenging the current forest modelling architecture. New silvicultural systems, guidelines for natural disturbance emulation, a desire to enhance structural complexity, major advances in successional theory, and climate change have all highlighted the limitati...
Article
Full-text available
We assessed 27 indicators of plant diversity, stand yield and individual crop tree responses 25 years post-treatment to determine long-term trade-offs among conifer release treatments in boreal and sub-boreal forests. This research addresses the lack of longer-term data needed by forest managers to implement more integrated vegetation management pr...
Article
Full-text available
The Intensive Management Science Partnership: NEBIE Plot Network is a stand-scale, multi-agency research project designed to compare the ecological effects of a range of silvicultural treatments in northern temperate and boreal forest regions of Ontario. The NEBIE plot network was established in 2001 with randomized complete block experiments insta...
Article
Full-text available
The NEBIE plot network is a stand-scale, multi-agency research project designed to compare the ecological effects of a range of silvicultural treatments in northern temperate and boreal forest regions of Ontario, Canada. While research on silviculture intensities has been previously conducted, the NEBIE plot network is at a larger scale, and covers...
Article
In this study we sought answers to two questions (i) What is the relative influence of silvicultural disturbances on species richness in northern temperate and boreal forests? and (ii) In a scenario where emulating natural disturbances is applied, do collinearity and hierarchical structure exist among climate, soils, disturbance of the forest canop...
Chapter
Forest biodiversity refers to the variability among all forest life forms (trees, plants, animals, fungi and micro-organisms) from genetics to species and ecosystems and their associated ecological processes. Conserving forest biodiversity is a fundamental goal of sustainable forestry. Therefore, governments, non-government organizations (NGOs), ac...
Article
Full-text available
Throughout much of the northern temperate and boreal forests of Canada, intensifying silviculture to enhance fibre production is of increasing interest. However, some oppose the application of intensive silviculture citing possible negative effects on biodiversity. Using fifth-year post-harvest data from the NEBIE Plot Network in Ontario, Canada, w...
Article
Full-text available
Throughout much of the northern temperate and boreal forests of Canada, intensifying silviculture to enhance fibre production is of increasing interest. However, some oppose the application of intensive silviculture, citing possible negative effects on biodiversity. Using fifth-year post-harvest data from the NEBIE Plot Network in Ontario, Canada,...
Article
Full-text available
In boreal and temperate forests in Canada, at least 71 plant species, including trees, shrubs, herbs, grasses, and ferns, have the potential to significantly reduce the growth of conifer regeneration. A thorough understanding of the autecology of these plants-their response to their environment can help resource managers to improve their approaches...
Article
Full-text available
In Ontario, forest management planning requires that legal obligations to sustain forest composition and pattern, wildlife habitat, and other values are met, while at the same time addressing, for example, wood supply needs, costs, forest access,and stakeholder concerns. One of the latter is pressure to reduce herbicide use. Stand-level effects of...
Article
Full-text available
We assessed growth responses 10 years post treatment for 31 combinations of site, species, and treatments from six studies in Ontario, Canada, to determine if conifer release treatments increase gross total conifer volumes but decrease gross total stand volumes in boreal forests. Treatments included single and multiple herbicide application or moto...
Article
Full-text available
Much of the southern boreal forest is composed of second-growth stands that have been subjected to a variety of silvicultural treatments ranging from cut and leave to scarification, planting, and tending with herbicides. We have limited understanding of the effects that these treatments may have on wildlife species, as a result of changes to forest...

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