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Capstone Projects

Influence of Stand Density and Species Proportion on the Productivity of Planted Forests

Mon, 12/03/2012 - 13:24
Abstract: This study examines the influence of stand density and species proportion in mixed species forest plantations through the Forest Vegetation Simulator (FVS), forest growth modeling software. It is hypothesized that a mixed-species stand will be more productive than any monoculture of the same density due to some compatibility between the two chosen species. Trees were “planted” in 5 different densities; 460, 540, 660, 860, and 1100 trees per acre. The ratios of eastern white pine (Pinus strobus) and eastern hemlock (Tsuga canadensis) were then altered using substitutive plot designs and grown for 100 years. The most productive stand was established as a mixed-species plantation with a white pine:eastern hemlock ratio of 60:40. This stand was established with 1100 trees per acre; 660 white pine and 440 eastern hemlock. This translates to 39.6 square feet per tree, or a grid size of about 6.29’x6.29’. This stand, after 100 years of simulated growth, was 1.0038 times more productive than highest producing monoculture of the same density. Although the hypothesis was accepted, the most productive mixed-species stand developed into a white pine monoculture after 100 years of simulation.
Access: No
Literary Rights: Off
Major: Forestry
Year: 2012
File Attachments: The Author has selected not to publish this complete work.
Authors: Tyler J. Dallas

Monitoring the Zebra Mussel Invasion Front: Use of New Technology

Thu, 02/09/2012 - 15:39
Abstract: Zebra mussels are invasive mollusks that are affecting the well-being of the water bodies in the United States. This study uses environmental DNA (eDNA) is a sensitive early detection system that may be useful in monitoring their spread. The purpose of this study is to determine the effectiveness of eDNA technology in identifying infested water bodies, to determine if zebra mussel DNA is in the Adirondack water bodies not known to be infested, if the water chemistry of these water bodies is favorable for zebra mussel establishment, and if the eDNA technology is transferable to an institution like Paul Smith’s College. Eighteen lakes, all in New York State were sampled, fifteen of which are located in the Adirondack Park. DNA was extracted from water and plankton samples and species specific primers were used for PCR amplification to determine if zebra mussel DNA was present. Of seven samples taken from sites known to be infested, five of these tested positive for zebra mussel eDNA. Four lakes not known to be infested within the Park also tested positive for zebra mussel eDNA. Based on zebra mussel risk parameters (water chemistry) applied to 1,469 Adirondack water bodies, less than 3% are at risk of zebra mussel establishment. However it is possible that established populations could occur at microsites that may have locally high levels of calcium and higher pH.
Access: No
Literary Rights: Off
Major: Biology, Environmental Sciences, Environmental Studies, Fisheries and Wildlife Science, Forestry, Natural Resources Management and Policy
Year: 2011
File Attachments: The Author has selected not to publish this complete work.
Authors: Alexandria Bevilacqua, John Bishop, Charles Cain, Tyler Clark, Seth Crevison, Robert Culyer, Ryan Deibler, Brian DeMeo, Jonathan Eckert, Kirsten Goranowski, Joelle Guisti, Alan Jancef, Korinna Marino, Michelle Melagrano, KaitlynNedo, Joseph Nelson, Aaron Palmieri, Cole Reagan, John Scahill, JohnathanStrassheim, Scott Travis, Sarah Van Nostrand and Sarah Vella