Fossil Pollen Analysis of Tsuga canadensis decline in Larkum Pond in Otis, Massachusetts

Fossil pollen analysis of sediment cores can provide data which is important to the reconstruction of the local flora and indicate patterns of disturbance. In this study, core samples taken from Larkum Pond in Otis, Massachusetts in February of 2007, were analyzed to identify evidence of the mid-Holocene decline of the eastern hemlock (Tsuga canadensis). Also, we will speculate as to its cause and comment on its ecological implications. It is hypothesized that there will be an observable decline of eastern hemlock across the sediment core sample depths. Analysis of the fossil pollen data show a marked decrease in the proportion of hemlock and an increase in the proportion of shade-tolerant, early-successional species such as beech and birch. Pine also showed an increase but to a lesser extent, presumably due to its shade-intolerant characteristic.

Anthropogenic Seismology: A look into Earthquakes and Fracking Activity in Oklahoma

This analysis focused on uncovering any meaningful significance between the location of M3+ earthquakes in 2015 and underground injection wells in Oklahoma. More specifically, I was interested in finding out what the probability that the distribution of earthquakes is occurring due to random chance. Defining and testing whether earthquakes occurring at a certain depth, location and magnitude are related to fracking activity is out of scope of this analysis. However, determining preliminary pattern analysis using GIS is a prudent first step.