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DigitalCommons@USU
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he U.S. National Forest System is a diverse and unique resource that must be managed within the context of competing and shifting social expectations. The policies under which the system operates have changed over the century, along with the...
2000-01-01
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Gill nets set at three depths at an open-water station in Lake Titicaca during August 1984 captured only two species of endemic killifishes (Orestias ispi and o. mulleri) and an exotic silverside (Basilichthyes bonariensis). These species...
1988-01-01
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[1] Increasing availability of high-resolution (1 m) topography data and enhanced computational processing power present new opportunities to study landscape organization at a detail not possible before. Here we propose the use of “directed...
2011-01-01
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In this paper, we provide a method for examining water quality objectives below dams at the mesoscale using a multi-model approach. Our method is a pilot application intended to leverage climate-forced hydrologies into reservoir inflows, combined...
2012-01-01
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High-elevation red spruce-Fraser fir forests in the Southern Appalachian mountains: 1) receive among the highest rates of atmospheric deposition measured in North America, 2) contain old-growth forests, 3) have shown declines in forest health, 4)...
1995-01-01
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Over the past decade there has been considerable interest in the effects of atmospheric deposition on forest ecosystems. This volume summarizes the results of the Integrated Forest Study (IFS), one of the most comprehensive research programs...
1992-01-01
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The effects of temperature and ration size on the growth rate and gross efficiency of food conversion of juvenile rainbow trout Salmo gairdneri were evaluated during 25-day seasonal experiments. Rations ranged from near-starvation to repletion...
1977-01-01
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We report on the isolation and evaluation of 11 microsatellites from a widespread eastern North American wetland sedge, Carex scoparia. Loci exhibit 3–9 alleles over five populations and significant FIS (0.204–0.717) in most populations. All...
2009-01-01
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Bed elevation, feature adjustments, and spawning use were monitored at three Chinook salmon (Oncorhynchus tschawytscha) spawning habitat rehabilitation sites to measure project longevity in a regulated river. Sites enhanced with 649–1323 m3 of...
2006-01-01
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We demonstrate that invasion success, through the introduction and establishment stages, can generally be predicted based on biological characteristics of the organisms and physical aspects of the environment; however, predicting subsequent...
2007-01-01
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Laboratory experiments were used to evaluate the potential importance of size-dependent predation on bloaters through the first 1–2 mo after hatching. Of the potential predators encountered by bloater eggs and larvae during their hypolimnetic...
1990-01-01
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Five types of physiological assay were applied to samples from three sites in Lake Titicaca, Peru- Bolivia (16”s) to assess the magnitude and seasonality of N or P limitation of algal growth. Phosphorus appeared to be in abundant supply relative...
1984-01-01
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Juvenile rainbow trout Oncorhynchus mykiss stocked in midelevation reservoirs in Utah inhabit shallow nearshore areas and are vulnerable to predation from piscivorous fish and birds. We determined the use and importance of nearshore habitats by...
1991-01-01
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