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This website provides an application for exploring modeling results from a U.S. Geological Survey (USGS) project titled Mapping Climate Change Resistant Vernal Pools in the Northeastern U.S. The purpose of this project was to improve understanding of the factors that control inundation patterns in vernal pools of the northeastern United States, so as to identify pools that might function as hydrologic refugia under climate change.
Abstract from NE CASC: Vernal pools are small, seasonal wetlands that provide critically important seasonal habitat for many amphibian species of conservation concern. Natural resource managers and scientists in the Northeast, as well as the Northeast Refugia Research Coalition, coordinated by the Northeast CASC, recently identified vernal pools as a priority ecosystem to study, and recent revisions to State Wildlife Action Plans highlighted climate change and disease as primary threats to key vernal pool ecosystems. Mapping out the hydrology of vernal pools across the Northeast is an important step in informing land management and conservation decision-making. Project researchers will collect hydrology data over...
The following pages contain maps of climate-change projections for the northeastern United States (from Virginia to Maine) based on selected datasets from Hamann and others (2013). All maps show absolute projected changes in climate variables between the baseline period (1981-2010) and the 2050s (2041-2070; left) or the 2080s (2071-2100; right). Future climate projections are based on the Representative Concentration Pathway (RCP) 8.5 emissions scenario (Knutti and Sedlacek, 2012) using an ensemble of 15 Global Circulation Models (GCMs; Hamann and others, 2013). Units are indicated on the color ramp (on right) except for unitless variables.
Vernal pools of the northeastern United States are important breeding habitat for amphibians. These wetlands typically fill with water from autumn to early spring and dry by summer. Under projections of future climate, some pools may dry earlier than is typical, which in some cases could make it difficult for amphibians to complete metamorphosis successfully. This study evaluated the factors controlling vernal pool inundation (i.e., whether or not a pool has water in it) and generated model predictions of pool-inundation probability under a variety of weather and climate scenarios (e.g., dry, average, and wet weather, and future climate scenarios for the middle and end of the 21st century). Model predictions were...
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Abstract (from Ecohydrology): Vernal pools of the northeastern United States provide important breeding habitat for amphibians but may be sensitive to droughts and climate change. These seasonal wetlands typically fill by early spring and dry by mid-to-late summer. Because climate change may produce earlier and stronger growing-season evapotranspiration combined with increasing droughts and shifts in precipitation timing, management concerns include the possibility that some pools will increasingly become dry earlier in the year, potentially interfering with amphibian life-cycle completion. In this context, a subset of pools that continues to provide wetland habitat later into the year under relatively dry conditions...
Categories: Publication;
Types: Citation
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