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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

The Bees of Algonquin Park: A Study of their Distribution, their Community Guild Structure, and the Use of Various Sampling Techniques in Logged and Unlogged Hardwood Stands

Nardone, Erika 07 January 2013 (has links)
This study investigates the distribution and functional guild structure of the bee community in hardwood stands of Algonquin Provincial Park under different logging regimes, assessing both the role of different aspects of the habitat in affecting this distribution and structure, as well as the use of different sampling techniques. The distribution of bee individuals and species was most dependent on the abundance of raspberry (Rubus strigosus), an important floral and nesting resource. Also of importance were total floral resources, microclimate, and habitat heterogeneity. The functional guild structure of the bee community, which was relatively resilient to habitat variation, was related to a greater variety of factors, reflecting wide-ranging behaviours and requirements of different guilds. Malaise traps, pan traps and nets varied in their effectiveness at collecting different bee genera and a high percentage of species were collected only with one trap type. Malaise traps performed relatively poorly in forested environments, though very well in more disturbed, open habitats. Pan traps and nets performed better in forested environments. Trap nests were an inefficient sampling technique in forests, but were effective at collecting some species of cavity-nesting bees. These findings underline the importance of raspberry for bee communities of northern hardwood forests, and the importance of heterogeneity, both of habitat types and sampling techniques, to attain the highest species richness of bees.
2

The effect of yellow perch on the trophic ecology of brook trout : the role of intraguild predation

Browne, David R., 1971- January 2007 (has links)
No description available.
3

Habitat selection, ecological energetics, and the effects of changes in white pine forests on breeding red crossbills (Loxia curvirostra) in Algonquin Provincial Park, Ontario

Simard, Julie H. January 2001 (has links)
No description available.
4

Habitat selection, ecological energetics, and the effects of changes in white pine forests on breeding red crossbills (Loxia curvirostra) in Algonquin Provincial Park, Ontario

Simard, Julie H. January 2001 (has links)
Habitat selection by, ecological energetics of, and the effects of changes in white pine (Pinus strobus L.) forests on Red Crossbills (Loxia curvirostra) were studied in Algonquin Provincial Park, Ontario. Birds were surveyed in several forest habitats and daily activities were observed during the breeding season in the autumn of 1998, a good year for white pine seed production. During the autumn of 1997 and summer of 1998, surveys of white pine stumps from trees harvested in the mid-late 1800s were conducted. Breeding birds foraged in stands with a minimum of 40% white pine, and appeared to prefer stands, both mixed deciduous-coniferous (40--70% white pine) and pine (>70% white pine) along roads. Possible reasons for this were: (1) seeds from trees along the road were more available to birds; (2) open-grown trees along the road had larger crowns with more seeds; and (3) the road provided grit and was adjacent to a favorite foraging area. (Abstract shortened by UMI.)
5

Large Mammal Movement: Differences in Primary and Branch Logging Road Use in Algonquin Provincial Park, Ontario

Roulston, Hillary Emma January 2013 (has links)
There is an expansive network of roads in Algonquin Provincial Park (APP) to facilitate forestry resource extraction. This leaves a research need for examining how the logging road network in APP affects the large mammals, and what local-level and landscape-level variables influence that use. Local-level data was collected directly at observation points, and landscape-level data was produced from ArcGIS for 40km2, 80km2, and 130km2 buffer areas. The objective of my study was to look at the use of primary and branch logging roads by five large mammal species in APP, and determine if landscape-level variables had an influence on the level of movement and utilization. The five species included moose, white-tailed deer, American black bear, eastern wolf and coyote. My null hypothesis (H0) states that there will be no difference in large mammal use between the primary and branch logging roads within APP and that local- and landscape-level variables will have no influence on them; my alternative hypothesis (H1) states that there will be less large mammal activity on the primary logging roads, more large mammal movement on the branch logging roads and local- and landscape-level variables will influence this use. Tracking was done by vehicle on six transects across the park for three repeated surveys where species identification and local-level variables were recorded. Landscape-level variables were acquired through GIS analysis in the lab. Based on the results from the local-level data, branch and primary logging road use differed in composition, though no significance was found between the use by large mammals for these two types of road. Through generalized linear models, specific combinations of landscape-level variables did influence large mammal movement on the primary and branch logging roads within three habitat range scales (130km2, 80km2, and 40km2). The most significance was seen at the buffer of 40km2 on the branch logging roads, with the variables road density (p < 0.01), percent forest cover (p = 0.04) and topographic ruggedness (p < 0.01) all having a strong impact on large mammal movement. The only significant findings for primary logging roads were also at the 40km2 scale with percent forest cover (p = 0.03) and percent water cover (p = 0.02) having an impact on large mammal movement. Overall, the landscape variables had greater influence on branch logging roads that may be explained by the quality of the surrounding habitat, as well as greater influence at smaller buffer scales. Further research and monitoring of the large mammals in APP is recommended to expand on this preliminary study. Greater understanding of the local- and landscape-level variables at differing habitat ranges will assist in understanding these large mammal movements and provide data to base logging road management on. As large mammals are wide-ranging species, my study informs APP that their logging road network does not seem to hinder the movements of this group of animals. Overall, the large mammals in APP did not have any significant difference in their use of primary and branch logging roads of APP. Further research has the potential to give greater understanding of the impacts of the logging road network on the five large mammal species studied in APP. There is also the potential for useful management strategies to emerge for large mammals in this park, and how to incorporate human activities within their habitat while maintaining sustainable populations.
6

In the Eye of the Beholder: Perceptions of Ecotourism in Algonquin Provincial Park

Penney, Elizabeth Jane January 2014 (has links)
Since its inception, ecotourism has been promoted as a solution to some of the problems of biodiversity conservation. It has been touted as having the potential to balance the diverse interests of various publics by ensuring the protection of landscapes from development and extraction, offering unique tourism experiences, contributing economically to local communities, and fostering support for conservation efforts. Inconsistent success in achieving these goals, however, suggests that the effectiveness of ecotourism ought to be assessed on a case-specific rather than an industry-wide basis. Further, different stakeholders are likely to perceive the impacts of ecotourism in very different manners. The research on ecotourism and conservation rarely considers multiple perspectives, instead reflecting a one-sided understanding of the issues. As a step towards addressing these shortcomings, this thesis brings to light differing perspectives of ecotourism at the site of Algonquin Provincial Park. Through interviews and surveys, I uncover differences in conceptualisations of key ideas of conservation, knowledge of Algonquin Park, and perspectives of ecotourism between two primary groups of participants: tourists visiting the park and residents living in surrounding areas. Their responses reveal that, to residents, the park is a representation of livelihood; for tourists, the park represents ???pristine nature.??? The park is staged for its various publics, strategically representing only those aspects that will be looked upon favourably to a given group. These multiple constructions may be beneficial, however, as diverse viewpoints of these participants prompted attitudes and behaviours that were advantageous to the varied objectives of the park???s mandate, ultimately contributing to the success of the park as a site of landscape and biodiversity conservation.
7

The influence of food web structure on the growth and bioenergetics of lake trout (Salvelinus namaycush) /

Pazzia, Ivano. January 2000 (has links)
Most fish species tend to feed on larger prey as their size increases. The lack of suitable prey during critical periods of their life can prevent them from shifting their diet to larger prey and also from reaching larger body sizes. In this study, we compared the energy budget of lake trout ( Salvelinus namaycush) populations with contrasting food webs. Non-piscivorous lake trout (NPLT) populations reached a much smaller size and grew at a much slower rate than picivorous lake trout (PLT) populations. Food consumption rates were on average, 2--3 times higher in NPLT when they were expressed on a wet weight basis. However, only a slight difference in their energy intake was detected (less than 10%) once consumption rates were corrected for differences in prey caloric content. Growth efficiency was about two times lower in NPLT compared to PLT, while their metabolic costs were higher and assimilation efficiency was lower. It is most likely that the increased metabolic costs were associated with higher foraging costs, since more feeding attempts must be made to acquire a given quantity of food when fish are feeding on smaller prey. Furthermore, the portion of indigestible matter is likely to be higher in the diet of NPLT than in PLT (e.g. chitin versus bone). These results are consistent with theoretical models of fish growth that have showed that lake trout must have access to larger prey, even if they are rare, to reach larger body sizes. Our study also illustrates how the restructuring of a prey community by the arrival of an exotic species into a food web could alter the growth rate of a top predator. Furthermore, our study suggests that age at first maturity is influenced by growth efficiency in indigenous populations of fish. Therefore, the dynamic of a population and its vulnerability to exploitation are likely to be influenced by their energy allocation strategy.
8

The influence of food web structure on the growth and bioenergetics of lake trout (Salvelinus namaycush) /

Pazzia, Ivano. January 2000 (has links)
No description available.
9

Nature's memory: an appraisal strategy for Ontario Provincial Park records – Algonquin Park as a case study

Woodley, Charlotte 15 September 2006 (has links)
Archival records are essential for understanding changes in the environment. However, these records are largely ignored by archivists, who overwhelmingly focus on records of human history. Algonquin Provincial Park in east-central Ontario was established in 1893 and is the oldest park in the Ontario Ministry of Natural Resources, Provincial Parks system. In addition to the many official functions and activities that occur in Algonquin Provincial Park, it is host to extensive environmental monitoring, assessment and research. However, no adequate system is in place to ensure that the records of archival value are identified, appraised, and preserved. An appraisal methodology is required to assist archivists to identify environmental records of long-term value. Using Algonquin Provincial Park as a case study, through primary source analysis of its structures and functions and comparisons with other park systems, various archival appraisal theories and methodologies are tested in order to determine the best method for appraising environmental records in general and the records of parks. It is determined that macroappraisal is the best method for appraising only the records created by the official functions and activities of Algonquin Provincial Park. However, the park depends on and interacts with many external affiliated organizations, including the Algonquin Forestry Authority, The Friends of Algonquin Park, Algonquins of Golden Lake First Nation, leaseholders, researchers, protest groups, anglers, businesses and contractors. The creation of environmental monitoring, assessment and research records is increasingly accomplished external to official government functions and activities. Many of these external groups create environmental records of archival value, yet, no formal strategy to preserve irreplaceable records is implemented in Algonquin Park. Elements from archival appraisal methodologies such as macroappraisal, the documentation strategy and the Minnesota Method are helpful for determining the relative archival value, and therefore level of documentation, of these external individuals, groups and organizations. This combination of methodologies is the most effective for ensuring the preservation of important environmental information and subsequently the environment. Various preservation partnership strategies are also suggested for these records identified as having archival value. / October 2006
10

First Nations, environmental interests and the forest products industry in Temagami and Algonquin Park

Lawson, James Charles Barkley. January 2001 (has links)
Thesis (Ph. D.)--York University, 2001. Graduate Programme in Political Science. / Typescript. Includes bibliographical references (leaves 550-592). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://wwwlib.umi.com/cr/yorku/fullcit?pNQ66354.

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