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Capstone Projects

Would an underpass/tunnel on Keese Mills Road decrease the percentage of amphibian mortality due to road mortality?

Wed, 04/29/2015 - 18:09
Abstract: Road Mortality has had a huge impact on Amphibian populations worldwide. Several options are available to help maintain and preserve migrating populations across roadways. One method that is looked at during this study is underpass and fencing. In this study, I assessed the need for an underpass and if it could help reduce the amount of amphibian’s mortality by traffic and, if an underpass is necessary, properly predict a location. I also looked at if underpasses alone could reduce the mortality of amphibians. I constructed arrays and pitfall traps to simulate an underpass on Keese Mills Road at Paul Smiths and Santa Clara, Franklin County New York. I predicted that underpass would decrease the amount of amphibian being slayed. I also predicted that certain locations would have more usage then others. The results showed that there was no significant difference between the location of the sites and whether they would be used by the amphibians. The results also showed that there was no correlation between the species that were captured and the species that were killed.
Access: No
Literary Rights: On
Major: Biology
Year: 2015
File Attachments: The Author has selected not to publish this complete work.
Authors: Jorge Velazquez

Examination of Potentially Ectoparasite-driven Behavior in Burrowing Owls: Tests of Alternative Hypotheses

Thu, 05/07/2015 - 19:06
Abstract: Burrowing Owls (Athene cunicularia) and their nests harbor at least 39 species of arthropods from 21 different families. Among the ectoparasites on Burrowing Owls are fleas, which are primarily Pulex irritans (Family Pulicidae), the human flea. Fleas can number in the hundreds on individual Burrowing Owls. Thus, we hypothesized that flea infestation has shaped Burrowing Owl behavior to avoid the costs of ectoparasitism. As part of experiments using infrared trail cameras deployed at Burrowing Owl nests in southern Idaho ¬¬during 2012-2013, we noticed apparent sunning behavior in both adult and nestling Burrowing Owls. Camera images captured owls lying on the ground with wings outstretched and flat. We only observed this behavior during daylight hours, although cameras were active for 24 h/day. Sunbathing in birds is often associated with ectoparasite reduction, although sunning has not previously been examined in relation to flea infestation. During 2014 we conducted an experiment that included fumigating some nests with a flea removing insecticide and examined the prediction that sunbathing would occur more frequently in control nests where ectoparasites remained. As sunning was not during the coolest parts of the day, it did not appear to function for warming. Also, we ultimately found no difference in the frequency of sunning in fumigated and control nests, and there was no relationship between sunning and abundance of fleas on owls. Thus, the evidence is not consistent with the ectoparasite hypothesis, as owls sunned irrespective of flea load. We also evaluated the alternative hypotheses that sunning was related to thermoregulation, anting, drying or feather degrading bacteria. The first three we were able to reject, and the last will need future research.
Access: No
Literary Rights: Off
Major: Biology
Year: 2015
File Attachments: The Author has selected not to publish this complete work.
Authors: Skyler Wysocki

Tetrodotoxin- toxicity of red efts (Notophthalmus viridescens) based on predatory selection

Thu, 04/30/2015 - 09:33
Abstract: Predators and prey have been coevolving for millions of years; those that have more aggressive relationships undergo more extreme selection as they become paired in an evolutionary arms race. This selection must affect both organisms to truly be an arms race; a relationship that accurately fits these criteria is that of the Eastern Red-Spotted Newt (red-efts) (Notophthalmus viridescens) and the Eastern Hognose Snake (Heterodon platirhinos). Samples of tetrodotoxin (TTX) extracted from red-efts were used to analyze a potential relationship between the efts and resistant predatory species. The values acquired upon analysis of samples were recorded from a population of organisms in an area vacant of the hognose and can be compared to areas where both species reside. Samples came from eighteen red-efts in a wetland located in the southeastern portion of the Adirondack Park where there are no known populations of the hognose snake. These samples were processed using various ELSIA grade chemicals, a procedure that concluded with ELSIA assays applicable for comparison to a set standard. By performing this study we hope to attain data pertaining to tetrodotoxin levels in red-efts that reflect an environment which does not contain hognose snakes, presented in the form of low levels of the specified toxin.
Access: No
Literary Rights: Off
Major: Integrative Studies
Year: 2015
File Attachments: The Author has selected not to publish this complete work.
Authors: Sarah Desrosier

Acidic Deposition in Adirondack Lakes: Episodic Acidification and Equilibrium

Tue, 05/05/2015 - 10:06
Abstract: Acid deposition has been a historic problem in the Adirondacks. Though after original mitigation attempts were deemed successful, funding for many acid deposition-monitoring programs in the area has been cut or eliminated, and much of the data that has been collected is now old and outdated. Newer data on this issue needed to be collected to determine if there truly has been recovery of Adirondack lakes. Through this observational experiment the pH levels of 18 different lakes scattered around the Adirondacks during winter were examined. The pH levels of the snow around the lakes were examined to determine the levels of acid shock. This data was compared to the historic data available and created a preliminary finding. This comparison helped determine that Adirondack water bodies could possibly be coming to a form of equilibrium as the pH levels are possibly returning to a resemblance of pre-disturbance conditions, which suggests recent legislation may have had measurable successes in the goal of reducing the acidification of Adirondack freshwater ecosystems.
Access: No
Literary Rights: Off
Major: Integrative Studies, Natural Resources Management and Policy
Year: 2015
File Attachments: The Author has selected not to publish this complete work.
Authors: Timothy Johnston, Andrew Olcott