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Vernal Pool Status Following Two Major Disturbances (100 year flood and Hurricane Irene)
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2014
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poster
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Vernal pools are crucial for the survival of herpetofaunal species. These temporary ponds are necessary breeding sites for many amphibious species and act as safe refugia, as many lack permanent predators that would be encountered in other more constant water bodies. The goal of this survey was to relocate and map the area and contagion (i.e., patch isolation, arrangement) of 16 vernal pools located in Rugar Woods, which were previously inventoried by Cody Carpenter 2011. Additionally, we sought to assess these vernal pools, following two severe disturbances, specifically the 100 year flood and Hurricane Irene. A global positioning system (GPS) device was used to mark the size of each vernal pool and georeference them in GIS. Results suggest that large disturbances have affected the distribution and abundance of these pools at Rugar Woods. Specifically, several vernal pools (#7, 8, 9) have now merged into one large pool. Additionally, the abundance of vernal pools has gone from 16 to 7 since 2011. The merging of 3 smaller pools serves to increase area and may support greater species richness including predators, as it may be more permanent. In addition, loss of pools increases pool isolation, perhaps leading to genetic drift effects. Findings from this study offer insights into how large-scale disturbance events can influence herpetofaunal communities.
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Student poster, Center for Earth and Environmental Science, SUNY Plattsburgh