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Capstone Projects

What Are the Differences in Trichome Density and Morphology Between Arabidopsis Lyrata Subsp. Lyrata Populations When Grown in A Northern Common Garden, Outside of Their Geographic Distribution?

Tue, 04/30/2019 - 15:23
Abstract: Trichomes are diverse among plants. There is evidence suggesting that environmental factors may influence these structures and their densities. Other evidence shows that weather may influence genetics and gene expression. Arabidopsis lyrata subsp. lyrata is a wild flower that is native to North America and Europe and has been extensively studied. Literature regarding Arabidopsis states that within the family and genus, there is evidence suggesting that trichomes can be either non-branched, twice branched or thrice branched. This study’s purpose was to analyze how trichome density, and morphology in Arabidopsis lyrata subsp. lyrata differs between populations when grown outside of the natural distribution limit. Four populations of Arabidopsis lyrata subsp. lyrata were studied based on latitude. After analyzing the outcomes, unexpectedly there are no major differences between the north and south populations; however, there are differences between the four populations. Based on the data gathered, it was determined that the population, North2 (07G) must be genetically different from the other three populations. The four populations were grown together in a common garden; thus, all variables were the same. The environment did not influence trichome density or morphology within the North2 population, therefore the structures were genetically pre-determined.
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Major: Biology
Year: 2019
File Attachments: Scarabaggio_A.docx
Authors: Amber My Scarabaggio

The influence of a common parent on sap sweetness among open pollinated sugar maple (Acer saccharum Marsh.) offspring

Wed, 05/08/2019 - 15:08
Abstract: Beginning in the 1950s, the United States Forest Service began to look into the ability to predict and control the heritability of sap sweetness in sugar maples (Acer saccharum Marsh.). A search for genetically superior (sweeter) trees was conducted across 6 states, testing 21,000 trees. Only 53 trees were chosen to be parental stock for the “Super Sweet” sugar maple improvement program. These trees, cloned through rooted cuttings and scion wood grafting, were planted in the Grand Isle, VT clonal bank. One of the five progeny tests of open pollinated offspring from the clonal bank was established in Lake Placid, New York. These trees had their first evaluation at age ten. Each tree had its diameter and height measured, as well as its sap sweetness tested. Now, 35 years after planting, the trees were evaluated again. An inventory was conducted with diameter at breast height, tree height, and live crown ratio measurements. Of the 725 trees planted, only 396 trees remain. Only 258 trees were of size and quality to handle a 5/16” tap. Their sap sweetness was measured at multiple times though out the season. Knowing one of the two parents of each tree allowed for the comparison of the sap sweetness of the different common-parent groups. The data collected did not support that the knowledge of only one parent could be used to predicts a tree’s sweetness relative to any other parent’s offspring. The bigger picture progeny evaluations will continue the “Super Sweet” sugar maple improvement program.
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Major: Forestry
Year: 2019
Authors: Eric Mance

Soil and Vegetation Characteristics of High Elevation Wetlands in the Adirondack Park

Mon, 12/03/2012 - 17:14
Abstract: Wetland ecosystems are finally being understood for their true importance. Wetlands in the past were misunderstood and thought to be disease carrying burdens on our way of life; however this mentality changed during the mid-19thcentury. These ecosystems are important for biodiversity and act as natural water purification systems. This study was undertaken to help understand, the high elevation wetland characteristics. Our goals were to analyze the soils and describe the vegetation in high elevation wetlands. The soil and vegetative surveys helped define the characteristics of these ecosystems and create a better understanding of them. The combination of vegetation species that are wetland indicators were found in each site, the soil pH, and nutrients show that each site had signs of being a wetland community.
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Major: Environmental Sciences, Forestry
Year: 2012
File Attachments: FINAL Capstone Report.doc
Authors: Brandon Ploss, Sean Ayotte

A MULTI-SCALE EVALUATION OF THE EFFECTS OF FOREST HARVESTING FOR WOODY BIOFUELS ON MAMMALIAN COMMUNITIES IN A NORTHERN HARDWOOD FOREST

Fri, 02/01/2013 - 16:19
Abstract: Forest harvesting and subsequent effects on forest structure have been shown to influence mammalian community assemblages and the abundance of individual species, however less attention has been paid to the implications of how harvested timber is used. This is particularly relevant in the Northern Forest, where a considerable portion of the forest harvesting is used to produce biofuels. Biofuels harvesting typically involves the process of whole-tree chipping which may lead to a dramatic reduction in the amount of woody material in the form of slash and coarse woody debris (CWD) left in harvested stands. The goal of our study was to assess the effects of biofuels harvesting on forest structure and subsequent effects on mammalian community structure and abundance. To address this goal, we focused on a ~35 Ha area of partially-harvested northern hardwood forest in the northern Adirondacks, New York. To sample mammals we used a combination of Sherman traps and track plates established at two scales across stands within this area. Our results showed that the response of small mammals to changes in forest structure is both species and scale specific. At the individual trap scale, CWD, slash, and understory cover were important drivers of the occurrence of individual species of small mammals. At the larger “grid” scale, small mammal relative abundance was driven by canopy cover and the density of woody stems. Our results indicate that the current harvesting practices used for biofuel production in the Adirondacks are unlikely to result in declines in abundance of common small mammal species. However, the retention of some slash post-harvest may be beneficial to some species, thus foresters may want to include slash retention when developing silvicultural prescriptions.
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Major: Environmental Sciences, Fisheries and Wildlife Science, Natural Resources Management and Policy
Year: 2012
Authors: Cody Laxton, Alisha Benack, Danielle Ball, Scott Collins, Sam Forlenza, Richard Franke, Stephanie Korzec, Alec Judge, Connor Langevin, Jonathan Vimislik, Elena Zito

Vegetation colonization of a large sediment deposit from Tropical Storm Irene and the trajectory of the ecosystem

Sun, 12/02/2012 - 20:06
Abstract: Rivers, floodplains and riparian zones are important pieces of all landscapes. Humans have always had a close connection with these ecosystems but commonly that connection has led to anthropogenic disturbance of the natural system. There are very few undisturbed rivers, floodplains, and riparian zones left in the temperate biome. A better understanding of how disturbance, humans, and invasive plants are interacting with reference to rivers, floodplains and riparian zones may help with protection of these sensitive areas. This study analyzed the vegetation which was left and which colonized a large sediment deposit from Tropical Storm Irene, August 28, 2011. The understory vegetation was assessed in four 1 m2 plots based on stem count and percent foliar cover 319, 349 and 394 days after the tropical storm. Overstory trees were also inventoried in order to identify species and make connections between the overstory and new understory. Invasive species accounted for 16.1% of all stems found from day 319 to day 394. There were 5 invasive species found within the plots (garlic mustard, honeysuckle, Japanese knotweed, goutweed, chervil). Garlic mustard and Japanese knotweed increased in foliar cover from day 319 to 394 and may have retarded the growth of native plants and seedlings. Only 9.4% of all stems were found to be tree seedlings. The invasive plants which are colonizing fluvial deposits may be altering the structure and succession of floodplain forests and riparian zones. This invasive plant-covered deposit now provides a seed source for areas downstream as well as prevents native vegetation from growing on the site.
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Major: Forestry
Year: 2012
File Attachments: Capstone Paper.docx
Authors: Hannah Wahlstrom

Forces at Work: An Interpretive Management Plan for Fernow Forest Nature Trail

Mon, 12/03/2012 - 12:23
Abstract: Fernow Forest Nature Trail in the town of Tupper Lake, Franklin County, New York, is a recreation facility with great educational value to tourists and the local community. The cultural and natural resources of the site have been underutilized by the outdated Self-Guided Nature Trail brochure and insufficient signage. A survey was conducted at the trail to obtain pertinent data on visitor preferences regarding popular landmarks along the trail and types of interpretive programming. Recognizing that a greater impact on visitors could be made if interpretation at the site was improved, a thematic interpretive management plan for the Self-guided Nature Trail was developed. The new program, “Forces at Work,” consisted of a revised brochure, a complete map of the trail and amenities, and recommendations for the successful implementation of the new program including the utilization of an on-site interpreter. Future care of the trail was entrusted to Paul Smith’s College’s Forestry Club under the New York State Department of Environmental Conservation’s Adopt-A-Natural Resource program.
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Major: Forestry
Year: 2012
Authors: Lawrence Montague

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.
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Major: Forestry
Year: 2012
File Attachments: The Author has selected not to publish this complete work.
Authors: Tyler J. Dallas

A stewardship plan for the Temple, New Hampshire Town Forest property based on multiple-use values derived from focus group research

Tue, 12/04/2012 - 12:37
Abstract: Open space and un-fragmented land constitutes a valuable community asset. In the town of Temple, New Hampshire, residents enjoy a sense of community and a rich agricultural history. Outdoor recreation is a popular activity for many residents. A hidden gem, the Temple Town Forest property, is open to the public for recreational foot traffic use, but it is not being actively utilized. The property is managed by the Temple Conservation Commission. To aid the Commission, a stewardship plan was created from focus group research with three overarching goals of forest health, increased recreational opportunities and ways the public can participate in forest management. The end result is the promotion of a managed working forest the public can appreciate. The plan provides a forest health inventory, examines recreational usage and a timber cruise identified potential trees that could be harvested. Suggestions were stated on how the public can assist in management for the Town Forest like, forming a specialized town forest committee and supporting local maple sugaring.
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Major: Forestry
Year: 2012
File Attachments: Final Draft Capstone.docx
Authors: Eric W. Foley

Silviculture Prescription and Regeneration Analysis: An Investigation of the Creighton Compartment of the Paul Smith’s College Forest Management Plan

Wed, 12/05/2012 - 10:31
Abstract: Paul Smith’s College, being an environmental college, has a unique opportunity to explore the newest research to find the best methods of silviculture treatments to meet regeneration goals while sustaining forest structure. This study investigated the Creighton Compartment of the PSC forest management plan specifically examining the silviculture prescriptions and regeneration. Seedling and sapling regeneration data was compared with the management plan to determine whether regeneration goals were met. Overall, the hardwood stands were regenerating in vast amounts of undesired American beech (Fagus grandifolia) and not meeting the preferred goal of red maple (Acer rubrum), sugar maple (Acer saccharum), black cherry (Prunus serotina) and yellow birch (Betula alleghaniensis). The softwood stands were regenerating in vast amounts of undesired balsam fir (Abies balsamea) and not meeting the preferred goal of eastern white pine (Pinus strobus) and red spruce (Picea rubens). Based on extensive research, it has been determined that a variable sized group selection harvest was the best solution to regenerate the preferred hardwoods and a two-cut shelterwood system with at least 40 percent light scarification should be conducted to favor regeneration of preferred softwoods.
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Major: Forestry
Year: 2012
File Attachments: Day_Final_Capstone.pdf
Authors: Nicholas Day

Evaluation of Current Old Growth Classification System Applied to Northern Hardwood Forests of Western New York State

Fri, 12/07/2012 - 17:08
Abstract: A study of four old growth stands in Western New York was conducted to document the ecological complexities and characteristics of these isolated pockets of protected forests. These stands were compared to stands in a study, Selected Nova Scotia old-growth forests: Age, ecology, structure, scoring (Stewart et.al, 2003). Using techniques and sampling of Stewart et al., data included estimated age structure, species composition, basal area, density, coarse woody debris, volumes, heights, and snags. All of the stands were uneven-aged, as were the stands in the comparison study. All stands displayed low varying basal area ranges and lower stand density than those stands in Stewart et al. The comparison study had basal areas ranging from 32.5 to 55.5 m^2/ha, but the collected basal area of this study ranged from 14.5 to 29 m^2/ha. Volumes of dead wood ranged from 2 to 60 m^2/ha, which again was significantly less than dead wood volumes in Stewart et al. Most of the dead wood volume was derived from coarse woody debris, with few snags throughout the stands. Six attributes were rated on a 100 point system according to age, primal value, diameters, lengths of dead wood, canopy structure and understory structure. The scores of this study ranged from 52 to 70, which were significantly less than the scores in the comparison study. The Nova Scotia stands were dominated by softwood species and were larger in acreage. The western New York stands were dominated mostly by hardwood species and were smaller in acreage. Due to these differences, the western New York stands fell short of the Nova Scotia stands in two important criteria: ‘Primal Forest Value’ and ‘Bole Length of Snags and CWD.’ The protocols of Stewart et al. were generally adequate for evaluating the old growth characteristics. However, this study suggests that some of the criteria could be adapted to capture characteristics found in smaller, isolated pockets of hardwood dominated old growth forests.
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Major: Forestry
Year: 2012
Authors: Catherine Veress