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Articles 1 - 13 of 13
Full-Text Articles in Entire DC Network
Genetic Variation At The Species And Population Levels In The Rocky Mountain Ridged Mussel (Gonidea Angulata) – Supplementary Material, James A. Walton, Karen E. Mock, Steven F. R. Brownlee, Jon H. Mageroy, Greg Wilson, Ian R. Walker
Genetic Variation At The Species And Population Levels In The Rocky Mountain Ridged Mussel (Gonidea Angulata) – Supplementary Material, James A. Walton, Karen E. Mock, Steven F. R. Brownlee, Jon H. Mageroy, Greg Wilson, Ian R. Walker
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Freshwater mussels in western North America are threatened by water diversions, climate change, loss of required host fish, and other factors, and have experienced marked decline in the past several decades. All four of the primary lineages (potentially species) of freshwater mussels in the western U.S. and Canada are widespread and have somewhat generalist host fish requirements. Of these lineages, perhaps the most poorly understood and of greatest conservation concern is Gonidea angulata (Rocky Mountain ridged mussel). Gonidea is a monotypic genus occurring only in the western continental U.S. and southern Canada. Here we describe the patterns of genetic variation …
Technology Belmont Data, Christopher Monz, Vera Hausner, Jennifer Schmidt
Technology Belmont Data, Christopher Monz, Vera Hausner, Jennifer Schmidt
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The data is based on semi-structured household interviews conducted in Noatak (n = 12), Noorvik (n = 11), and Brevig Mission (n = 12) in the March of 2017. Information gathered consists of individuals use of technology, perceptions about how technology has helped or hindered their ability to do subsistence and address the changing climate, and the role of technology in the community. Demographic information includes gender, race, education, household size, and employment status. Individuals who were particularly knowledgeable and amendable participated in a q-sort exercise to assess values and beliefs regarding technology in their community. Individual records are confidential …
Changes In Water Vapor Adsorption And Water Film Thickness In Clayey Materials As A Function Of Relative Humidity, Qinhong Hu
Earth & Environmental Sciences Datasets
Soil water, with adsorbed water being an important component, plays an important role in fluid flow and chemical movement in the unsaturated zone. The adsorbed water consists of water film and interlayer water, and its content is related to the relative humidity (RH). This study theoretically and experimentally focuses on the variation in adsorbed water content in clayey materials as the RH changes. Based on a slit-pore model, three types of water (water film, interlayer water, and capillary water) could be present in the water vapor adsorption process. The variation of water film is obtained from the analysis of interfacial …
Determining How Increasing Precipitation Intensity Will Impact Rangelands In Utah., Karen H. Beard, Andrew Kulmatiski
Determining How Increasing Precipitation Intensity Will Impact Rangelands In Utah., Karen H. Beard, Andrew Kulmatiski
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As the atmosphere warms, precipitation events become larger, but less frequent. Yet, there is fundamental disagreement about how increased precipitation intensity will affect vegetation. Walter’s two-layer hypothesis and experiments testing it have demonstrated that precipitation intensity can increase woody plant growth. Observational studies have found the opposite pattern. Not only are the patterns contradictory, but inference is largely limited to grasslands and savannas. We tested the effects of increased precipitation intensity in a shrub-steppe ecosystem that receives >30% of its precipitation as snow. We used 11 (8 m x 8 m) shelters to collect and redeposit rain and snow as …
A Pulse-Decay Method For Low Permeability Analyses Of Granular Porous Media: Mathematical Solutions And Experimental Methodologies, Quinhong Hu
Earth & Environmental Sciences Datasets
This dataset is for a manuscript titled "A pulse-decay method for low permeability analyses of granular porous media: Mathematical solutions and experimental methodologies" being reviewed by Water Resources Research, a journal of American Geophysical Union and Wiley (2020-07-29)
Coqui Frog Predator Avoidance And Recognition, Karen H. Beard
Coqui Frog Predator Avoidance And Recognition, Karen H. Beard
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The purpose of this study was to determine whether coqui frogs from their non-native range responded to native predators the same way as frogs from their native range. Frogs were collected from two sites in Puerto Rico (El Yunque and Rio Abajo) in May 2006 and one site in Hawaii (Hilo) in June 2006. At each site, frogs were collected from a high (> 700 m) and low (< 300 m) elevation population. Of the total number of frogs collected, 100 males were randomly selected to be used in this study (45 and 55 from Hawaii and Puerto Rico, respectively). Three tailless whipscorpions (Phrynus longipes) and three tarantulas (Avicularia laeta) were also collected in Puerto Rico in field sites where frogs were collected and shipped back to a laboratory.
Quantifying Fluid-Wettable Effective Pore Space In The Utica And Bakken Oil Shale Formations, Qinhong Hu
Quantifying Fluid-Wettable Effective Pore Space In The Utica And Bakken Oil Shale Formations, Qinhong Hu
Earth & Environmental Sciences Datasets
Laboratory results from (U)SANS [(ultra) small angle neutron scattering] work conducted at NIST to be published at an American Geophysical Union (AGU) journal. (2020-05-26)
Scatterable Landmine Detection Project Dataset 8, Gabriel Steinberg, Jasper Baur, Alex Nikulin, Timothy De Smet
Scatterable Landmine Detection Project Dataset 8, Gabriel Steinberg, Jasper Baur, Alex Nikulin, Timothy De Smet
Earth Sciences Faculty Scholarship
No abstract provided.
Aeromagnetic Surveys To Detect Mbrl Unexploded Ordnance Dataset 2, Alex Nikulin, Timothy De Smet
Aeromagnetic Surveys To Detect Mbrl Unexploded Ordnance Dataset 2, Alex Nikulin, Timothy De Smet
Earth Sciences Faculty Scholarship
No abstract provided.
Scatterable Landmine Detection Project Dataset 9, Gabriel Steinberg, Jasper Baur, Alex Nikulin, Timothy De Smet
Scatterable Landmine Detection Project Dataset 9, Gabriel Steinberg, Jasper Baur, Alex Nikulin, Timothy De Smet
Earth Sciences Faculty Scholarship
No abstract provided.
Aeromagnetic Surveys To Detect Mbrl Unexploded Ordnance Dataset 1, Alex Nikulin, Timothy De Smet
Aeromagnetic Surveys To Detect Mbrl Unexploded Ordnance Dataset 1, Alex Nikulin, Timothy De Smet
Earth Sciences Faculty Scholarship
No abstract provided.
Hudson River Estuary Tidal Marsh Sediment Data, Brian Yellen, Jonathan Woodruff
Hudson River Estuary Tidal Marsh Sediment Data, Brian Yellen, Jonathan Woodruff
Data and Datasets
This repository contains data from sediment cores collected at six tidal wetland complexes that are located within the Hudson River Estuary. The sites include Stockport Marsh, Esopus Delta, Tivoli North Bay, Tivoli South Bay, Vanderburgh Cove, and Iona Island Marsh. A variety of core collection tools and methods were used to collect uncompacted records, including gouge coring, Russian peat coring, and piston push coring, with the method determined by coring environment. The general workflow for cores included (1) splitting; (2) Itrax XRF scanning; (3) subsampling cores ~10 cm spacing; (4) drying and burning samples for percent water, organic, and mineral …
Dam Impoundments Sediment Mass – Tributaries To The Hudson River, Brian Yellen, Jonathan Woodruff
Dam Impoundments Sediment Mass – Tributaries To The Hudson River, Brian Yellen, Jonathan Woodruff
Data and Datasets
This repository contains data from sediment cores collected during 2017-2018 from 17 impoundments that are located on tributaries to the tidal portion of the Hudson River as part of a larger NERRs collaborative project entitled Dams and Sediment on the Hudson (DaSH). A companion dataset that contains sediment core data from Hudson tidal marshes is archived at UMass Scholarworks data repository. Sediment cores collected from impoundments behind dams were recovered via piston push coring, which tends to minimize compaction and be representative of true sediment thicknesses. The general workflow for cores included (1) splitting; (2) Itrax XRF scanning; (3) subsampling …