Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16727
Groundwater recharge estimates for Maine using a Soil-Water-Balance model—25-year average, range, and uncertainty, 1991 to 2015 Groundwater recharge estimates for Maine using a Soil-Water-Balance model—25-year average, range, and uncertainty, 1991 to 2015
To address the lack of information on the spatial and temporal variability of recharge to groundwater systems in Maine, a study was initiated in cooperation with the Maine Geological Survey to use the U.S. Geological Survey Soil-Water-Balance model to evaluate annual average potential recharge across the State over a 25-year period from 1991 to 2015. The Maine Soil-Water-Balance model...
Authors
Martha G. Nielsen, Stephen M. Westenbroek
Shrimp U-Pb zircon and opal geochronology, isotope geochemistry, and genesis of the super large Be deposit at Spor Mountain, Utah, USA Shrimp U-Pb zircon and opal geochronology, isotope geochemistry, and genesis of the super large Be deposit at Spor Mountain, Utah, USA
Ongoing studies of the Spor Mountain beryllium (Be) deposit are focused on (1) characterizing the role of igneous rocks in the genesis of the ore zones, (2) determining the timing and duration of magmatic-hydrothermal events, and (3) establishing processes related to beryllium transport and accumulation. The Spor Mountain Formation (SMF) hosts the deposit, which is the largest known...
Authors
Nora K. Foley, Robert A. Ayuso
Climate change science and modeling Climate change science and modeling
This chapter provides a brief background on climate change science, climate simulation models, and models that project the impacts of changes in climate on tree species and ecosystems. Throughout the chapter, boxes list resources for more information on each topic. A more detailed scientific review of climate change science, trends, and modeling can be found in the Intergovernmental...
Authors
Patricia R. Butler-Leopold, Louis R. Iverson, Frank R. Thompson III, Leslie A. Brandt, Stephen D. Handler, Maria K. Janowiak, P. Danielle Shannon, Christopher W. Swanston, Scott Bearer, Alexander Bryan, Kenneth L. Clark, Greg Czarnecki, Philip DeSenze, William D. Dijak, Jacob S. Fraser, Paul F. Gugger, Andrea Hille, Justin Hynicka, Claire A. Jantz, Matthew C. Kelly, Katrina M. Krause, Inga P. La Puma, Deborah Landau, Richard G. Lathrop, Laura P. Leites, Evan Madlinger, Stephen N. Matthews, Gulnihal Ozbay, Matthew P. Peters, Anantha Prasad, David A. Schmit, Collin Shephard, Rebecca Shirer, Nicholas S. Skowronski, Al Steele, Susan Stout, Melissa Thomas-Van Gundy, John Thompson, Richard M. Turcotte, David A. Weinstein, Alfonso Yanez
A regional analysis of long-term gray and harbor seal stranding events A regional analysis of long-term gray and harbor seal stranding events
Strong indicators of species’ sensitivity, adaptive capacity, and overall vulnerability to climate change are provided by changes in phenology, the timing of recurring life events (Parmesan and Yohe, 2003). We possess poor information on climate induced shifts in phenology of marine organisms, especially top predators. The Gulf of Maine (GOM) Seasonal Migrants Project is an ongoing...
Authors
Katharine M. L. Jones, Michelle Staudinger
A review of literature for gray and harbor seals A review of literature for gray and harbor seals
Climate change is impacting marine species, causing shifts in occurrence, distribution, and phenology, which can ultimately effect ecosystem structure and functioning (Parmesan & Yohe 2003; Burrows et al. 2011). The study of the timing of recurring biological events throughout an organism’s life is known as phenology (Parmesan & Yohe 2003). The way organisms respond to climate change...
Authors
Gabrielle Calandrino, Daniel Pendleton, Michelle Staudinger
Climate change refugia Climate change refugia
Climate change is affecting the distribution, abundance, and persistence of species and ecosystems around the world. As natural resource managers are tasked with maintaining and protecting species and ecosystems from the effects of a changing climate, options for minimizing impacts are needed. Options for climate adaptation—the policy and management actions taken to minimize negative...
Authors
Toni Lyn Morelli, Connie Millar
Taxonomic evaluation of the three “type” specimens of the fringe-footed shrew, Sorex fimbripes Bachman, 1837 (Mammalia: Soricidae) and recommended nomenclatural status of the name Taxonomic evaluation of the three “type” specimens of the fringe-footed shrew, Sorex fimbripes Bachman, 1837 (Mammalia: Soricidae) and recommended nomenclatural status of the name
John Bachman (1837:391) described the “fringe-footed shrew,” Sorex fimbripes Bachman, 1837, in his landmark monograph on the North American Soricidae (Mammalia: Eulipotyphla), in which he recognized 13 uniquely New World species. Characters he attributed to S. fimbripes resulted in its being interpreted as a tiny, semi-aquatic species and contributed to the complexity of its subsequent...
Authors
Neal Woodman
Digital Shoreline Analysis System (DSAS) version 5.0 user guide Digital Shoreline Analysis System (DSAS) version 5.0 user guide
Overview The Digital Shoreline Analysis System (DSAS) is a freely available software application that works within the Esri Geographic Information System (ArcGIS) software. DSAS computes rate-of-change statistics for a time series of shoreline vector data. DSAS version 5.0 (v5.0) was released in December 2018 and has been tested for compatibility with ArcGIS versions 10.4 and 10.5. It is...
Authors
Emily A. Himmelstoss, Rachel E. Henderson, Meredith G. Kratzmann, Amy S. Farris
Use of blood clotting assays to assess potential anticoagulant rodenticide exposure and effects in free-ranging birds of prey Use of blood clotting assays to assess potential anticoagulant rodenticide exposure and effects in free-ranging birds of prey
Non-target wildlife, particularly birds of prey, are widely exposed to and acutely poisoned by anticoagulant rodenticides (ARs). An unresolved issue surrounding such exposure, however, is the potential for sublethal effects. In particular, the consequences of AR exposure and resulting coagulopathy on health and survival of unintentionally exposed animals, which often encounter a...
Authors
Sofi Hindmarch, Barnett A. Rattner, John E. Elliott
The planktonic foraminiferal response to the Paleocene-Eocene thermal maximum on the Atlantic coastal plain The planktonic foraminiferal response to the Paleocene-Eocene thermal maximum on the Atlantic coastal plain
Planktonic foraminiferal assemblages in two cores from Maryland and New Jersey show evidence for significant changes in surface ocean habitats on the continental shelf during the Paleocene-Eocene Thermal Maximum (PETM). At both sites, significant assemblage shifts occur immediately before the onset of the event. These changes include the appearance of abundant triserial/biserial species...
Authors
Caitlin M. Livsey, Tali Babila, Marci M. Robinson, Timothy J. Bralower
Estimating occurrence, prevalence, and detection of amphibian pathogens: Insights from occupancy models Estimating occurrence, prevalence, and detection of amphibian pathogens: Insights from occupancy models
Understanding the distribution of pathogens across landscapes and their prevalence within host populations is a common aim of wildlife managers. Despite the need for unbiased estimates of pathogen occurrence and prevalence for planning effective management interventions, many researchers fail to account for imperfect pathogen detection. Instead raw data are often reported, which may lead...
Authors
B. A. Mosher, Adrianne Brand, ANM Wiewel, D. A. W. Miller, MT Gray, Debra L. Miller, Evan H. Campbell Grant
Salt marsh ecosystem restructuring enhances elevation resilience and carbon storage during accelerating relative sea-level rise Salt marsh ecosystem restructuring enhances elevation resilience and carbon storage during accelerating relative sea-level rise
Salt marshes respond to sea-level rise through a series of complex and dynamic bio-physical feedbacks. In this study, we found that sea-level rise triggered salt marsh habitat restructuring, with the associated vegetation changes enhancing salt marsh elevation resilience. A continuous record of marsh elevation relative to sea level that includes reconstruction of high-resolution, sub...
Authors
Meagan Gonneea Eagle, Christopher V. Maio, Kevin D. Kroeger, Andrea D. Hawkes, Jordan Mora, Richard Sullivan, Stephanie Madsen, Richard M. Buzard, Niamh Cahill, Jeffrey P. Donnelly