Rebecca Tittler

(1) Université du Québec à Montréal; (2) Concordia University · (1) Sciences biologiques; (2) Biology; Geography, Planning, and Environment; Loyola College for Diversity and Sustainability

Functional zoning has been suggested as a way to balance the needs of a viable forest industry with those of healthy ecosystems. Under this system, part of the forest is set aside for protected areas, counterbalanced by intensive and extensive management of the rest of the forest. Studies indicate this may provide adequate timber while minimizing r...

The world's forests and forestry sector are facing unprecedented biological, political, social and climatic challenges. The development of appropriate, novel forest management and restoration approaches that adequately consider uncertainty and adaptability are hampered by a continuing focus on production of a few goods or objectives, strong control...

To maintain healthy ecosystems, natural-disturbance-based management aims to minimize differences between unmanaged and managed landscapes. Two related approaches may help accomplish this goal, either applied together or in isolation: (1) concentrating anthropogenic disturbance through zoning (with protected areas and intensive management); and (2)...

Forest management has been criticised in the last 20 years for its negative impact on the native species, structures and functions of the forest. Of many possible alternatives proposed to minimize these effects, the functional zoning (or TRIAD) approach is gaining popularity in North America. The goal of this approach is to minimize the negative en...

Dispersal distances determine the scales over which many population processes occur. Knowledge of these distances may therefore be crucial in determining the appropriate spatial scales for research and management. However, dispersal distances are difficult to measure, especially for vagile organisms like songbirds. For these species, the use of tra...

The TRIAD approach to forest management involves dividing the forest into 3 zones, each with its own management objectives, but with the overall goal of increasing the ecological and economic sustainability of the forest. For the past 5 years, we have been experimenting with TRIAD zoning in central Quebec, incorporating social interests into the or...

The TRIAD approach to forest management involves dividing the forest into three zones, each with its own outcomes, but with the overarching goals of social acceptability, economic viability, and ecological sustainability. • The concentration of timber production in a wood production zone allows more of the land base to be set aside in a conservatio...

Source-sink dynamics are commonly thought to occur among Wood Thrush (Hylocichla mustelina) and other songbird populations, allowing for the persistence of populations with negative growth rates ("sinks") through immigration from populations with positive growth rates ("sources"). Knowledge of source-sink dynamics is important for management and co...

Source–sink dynamics are commonly thought to occur among Wood Thrush (Hylocichla mustelina) and other songbird populations, allowing for the persistence of populations with negative growth rates (''sinks'') through immigration from populations with positive growth rates (''sources''). Knowledge of source–sink dynamics is important for management an...

“The great northern forest may be the largest ecosystem on Earth. But size is no guarantee of survival.” Great Northern Forest, 1994, a film directed by Joseph Viszmeg, produced by Albert Karvonen and Jerry Krepakevich. Karvonen Films Ltd. and National Film Board of Canada The great northern forest may be the largest ecosystem on Earth. But size i...

In keeping with international efforts to encourage sustainable forest management, new legislation, regulations. and certification criteria have been brought into effect across boreal regions of the world in the past decade or less. These initiatives have established hierarchical systems of forest management planning that consider multiple uses of t...

Retention of residual trees in “cutblocks,” logged blocks of forest, has been proposed as a method to conserve songbirds in landscapes fragmented by clear-cut logging. We examined songbird communities in the boreal mixed-wood forest of Alberta, Canada, to investigate the effect on songbird abundance of (1) logging and (2) retaining variable densiti...

Partial harvesting, or the retention of live trees in cutblocks, is thought to reduce the impacts of clearcutting on wildlife biodiversity. An unintended biproduct of this practice may be an increase in nest predation in and adjacent to these cutblocks. We examined patterns of predation on artificial ground and shrub nests in and adjacent to stands...

Some birds with song repertoires sequentially associate (or cluster) songs of different types. That is, certain song types may occur together repeatedly, even on different days. We determined whether clustering of meadowlark songs correlated with repertoire size.We also tested whether clustered songs reflect either their structural similarities or...

Thesis (M. Sc.)--University of Alberta, 1998. Includes bibliographical references.