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Full-Text Articles in Life Sciences
Tb190: Spider Predation In Agroecosystems: Can Spiders Effectively Control Pest Populations., Darlene Maloney, Francis A. Drummond, Randy Alford
Tb190: Spider Predation In Agroecosystems: Can Spiders Effectively Control Pest Populations., Darlene Maloney, Francis A. Drummond, Randy Alford
Technical Bulletins
Recent trends in agriculture towards reduced pesticide use and ecological sustainability have lead to increased interest in spiders as potential biological control agents. Although the Chinese have augmented spider populations in field crops as a pest management strategy for centuries, much debate remains as to whether spiders will effectively control pest populations in U.S. agricultural ecosystems. This technical bulletin reviews the literature to describe the reduction of insect pest densities by spiders and the effects of pesticides on spiders. In addition to addressing the question of whether spiders can be effective biocontrol agents, the authors outline techniques to conserve and …
Tb187: Forest Vegetation Monitoring In Acadia National Park, J. D. Eckhoff, G. B. Wiersma, J. A. Elvir
Tb187: Forest Vegetation Monitoring In Acadia National Park, J. D. Eckhoff, G. B. Wiersma, J. A. Elvir
Technical Bulletins
The goal of this report is to present the results of the vegetation component of the PRIMENet study at Acadia. The results include a classification of vegetation types and their locations within Cadillac Brook and Hadlock Brook watersheds; a synthesis of the primary and meta tree, sapling, and seedling data from the two study watersheds; and foliar chemical analyses using Acer rubrum and Picea rubens from Cadillac Brook and Hadlock Brook watersheds. This report provides the baseline information for long-term forest vegetation monitoring in the deciduous and coniferous forests in Cadillac Brook and Hadlock Brook watersheds. Ongoing interest and studies …
Tb188: Tow Tank Scale Modeling In The Design Of Tidal Upwellers, John Riley
Tb188: Tow Tank Scale Modeling In The Design Of Tidal Upwellers, John Riley
Technical Bulletins
In February 1999 an ad hoc committee of representatives of Maine’s shellfish aquaculture industry, The University of Maine, and the Maine Sea Grant College Program met to discuss priorities for research to improve the performance of tidally powered shellfish upwellers. Information from this meeting was incorporated into a proposal submitted later in the year to the Maine Aquaculture Innovation Center. The project was funded and work began in January 2000. The project involved engineering analysis, field measurements of shellfish seed properties, and scale-model testing conducted in the university wave/towing tank with the overall goal of optimizing the design of a …
Tb189: The Cost Of Producing Milk In Maine: Results From The 2002 Dairy Cost Of Production Survey, Timothy J. Dalton, Lisa A. Bragg
Tb189: The Cost Of Producing Milk In Maine: Results From The 2002 Dairy Cost Of Production Survey, Timothy J. Dalton, Lisa A. Bragg
Technical Bulletins
This report summarizes the results of the 2002 Dairy Cost of Production survey implemented by The University of Maine and the Maine Milk Commission. Funding for this report was provided by the Maine Milk Commission. Analysis and discussion of the data in this report centers on four major groups called clusters. Cluster analysis attempts to identify groups of farms from within the sample of survey respondents that have relatively homogenous characteristics.
Tb186: Assessing Silviculture Research Priorities For Maine Using Wood Supply Analysis, Robert G. Wagner, Ernest H. Bowling, Robert S. Seymour
Tb186: Assessing Silviculture Research Priorities For Maine Using Wood Supply Analysis, Robert G. Wagner, Ernest H. Bowling, Robert S. Seymour
Technical Bulletins
To identify the highest priorities for silviculture research in Maine, the authors of this report quantified the absolute and relative influence of future silvicultural investments (tree planting, herbicide application, and PCT) and commercial thinning on projected harvest levels and future wood supplies in Maine. They also quantified the absolute and relative importance of the growth and yield assumptions (via sensitivity analysis) used in estimating the influence of these silvicultural treatments on projected harvest levels and future wood supplies in Maine; and based on the absolute and relative importance of the growth and yield assumptions and on the influence of differing …