A Paleolimnological study of precipitation variability in the Adirondacks over the last thousand years
Mon, 12/02/2013 - 20:40
Abstract: At present, most regional climate models anticipate wetter conditions by the end of this century, but a few models anticipate drier conditions. This study uses foresight to test these models, as well as describe the relationship between the dominant climate system in the region and past precipitation in the Adirondacks. Precipitation was inferred from diatom assemblages observed along a lake sediment core extending into the 1000 years. This study shows that abrupt, extreme wet events were common during the last 1000 years, and a relationship between the dominant climate system (North Atlantic Oscillation) and precipitation was irregular during the cool Little Ice Age but negatively associated during the warm Medieval Climate Anomaly. With temperatures in the Northeast projected to increase by 2-5 degrees C by 2100 AD, our study suggests the region may become more arid rather than wetter, opposite of what models currently suggest.
Literary Rights: On
Major: Biology, Environmental Sciences
File Attachments: regalado.serwatka.docx
Alternative Management Methods for Acid Deposition in Lakes
Fri, 04/26/2013 - 18:09
Abstract: Acid deposition has been causing the acidification of lakes in the Northeast United States for decades. The result is lake ecosystems with abnormally low pH that stresses the organisms that live there. Management plans in place in the Adirondack Park have been working to remediate acidified lakes for the past few decades. Limestone (CaCO3) has been the generally accepted method for managing these lakes, in an attempt restore the lakes pre-impacted conditions. The purpose of this study was to evaluate the effectiveness of liming in reversing the effects of acidification, and to identify effective alternatives. Five alternatives were tested against limestone: Sodium carbonate (Na2CO3), Sodium bicarbonate (NaHCO3), Sodium acetate (CH3COONa), Magnesium carbonate (MgCO3), and Potassium carbonate (K2CO3). Double End-Point Titration tests were performed on all of the compounds, using both distilled water and lake water, to determine the relative alkalinity of each compound. Alkalinity is the measure of the ability of a solution to neutralize acid, also known as its "buffering capacity." Lake water was used in the titration tests in an attempt to mimic in-situ testing. The results of the titrations showed limestone proving to be the most effective in the lake water tests, with Magnesium carbonate and Potassium carbonate ranked closely behind. While limestone has proven to be an effective management method, its reliability is dependent upon the characteristics of the lake catchment, making it important to continue to look for alternative solutions.
Literary Rights: Off
Major: Environmental Sciences
File Attachments: AcidDeposition_Capstone.pptx
Promoting Conservation of Biodiversity in the Adirondack Park Through Understanding and Engaging Stakeholders
Thu, 02/09/2012 - 11:31
Abstract: Anthropogenic disturbance of natural environments has led to the widespread loss of native biodiversity and degradation of ecosystems. It is increasingly recognized that addressing this “biodiversity crisis” entails understanding the societal drivers of unsustainable patterns of use. Conservation psychology is a new discipline that specifically focuses on understanding the linkages between human behavior and action and promoting a healthy and sustainable relationship between humans and nature. In this project, we employed principles of conservation psychology with the goal of improving the efficacy and efficiency of conservation of biodiversity in the Adirondack Park (AP). To meet this goal we employed three specific strategies. The first of these strategies was the use of surveys to assess the values, attitudes, and actions different stakeholders have in regards to conservation of biodiversity in the AP. These surveys were disseminated via both direct mailings and online, and included 30 questions. Our second strategy was to use discourse analysis to create a dictionary of terms and phrases employed in a positive, neutral, and negative light in regard to conservation of biodiversity. This entailed analysis of 30 emic accounts derived from opinion articles written by stakeholders in the AP, as well as analysis of a number of etic accounts drawn from online sources. Our third strategy was to use conservation psychology literature to assess ways in which the presentation of information and peer-dynamics influenced the responses of stakeholders towards conservation of biodiversity. Using the combination of these three strategies, we were able to provide a holistic understanding of how different stakeholders in the AP perceive and act towards biodiversity conservation; identify language that can be used to illicit a more positive response from these stakeholders; and identify specific tools based on principles of psychology that can encourage more active and effective engagement in conservation of biodiversity by different stakeholders. Our research findings will allow groups focusing on promoting conservation of biodiversity in the AP to be more effective and efficient in their work in the future.
Literary Rights: Off
Major: Environmental Sciences, Fisheries and Wildlife Science, Forestry, Natural Resources Management and Policy, Recreations, Adventure Travel and Ecotourism
File Attachments: FOR 2011 Final Compiled Version 12_14_12.docx
Refining Karner blue butterfly (Lycaeides melissa samuelis) restoration efforts by comparing captive rearing and release methods used in the Albany Pine Bush
Mon, 12/05/2011 - 18:36
Abstract: With this research, the release efforts of the endangered Karner blue butterfly (Lycaeides melissa samuelis) of the Albany Pine Bush (APB) in New York State at two different stages of the butterfly’s life cycle were compared. Survival success rates were determined and environmental factors were measured to assess captive rearing methods and improve restoration efforts in the APB Preserve. Captive rearing efforts have been used in the past in this area, releasing Karner blue butterfly pupae into the wild; however, this year in 2011, pupae were allowed to eclose from their chrysalides in the lab and were released into the wild as adult butterflies. The analysis of the information gathered showed that the release of Karner blue butterflies in the adult stage offered a greater survival rate over release in the pupal stage. The average daily maximum temperatures increased each year during the summers of 2009-2011. Information from this research is important to help prevent the extirpation of this species from the Albany Pine Bush Recovery Unit and may be helpful to organizations such as the US Fish and Wildlife Services and the Nature Conservancy.
Literary Rights: Off
Major: Environmental Sciences
File Attachments: CapstoneFINAL.doc