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Results from surveys to academic and industry and government geoscientists on the future of coal geoscientists At recent technical conferences, many coal geoscientists in academia and government institutions as well as in industry organizations have expressed concern about the dwindling number of students and young staff members interested in careers in coal geoscience. To better understand what is driving these trends and to identify potential ways that the community can increase interest and participation in coal geoscience, two different surveys were sent to 94 coal geoscientists who were current or past members of The Society of Organic Petrology (TSOP) in February 2020. As the trends and perceptions in industry and government organizations may be different than in universities, one distinct survey was sent to members... Categories: Data; Tags: Africa, Asia, Australia, Canada, China, All tags... Coal, Coal geoscience, Coal geoscientist, Columbia, Denmark, Europe, Future of coal geoscience, Gender, Germany, Greece, Indonesia, Last hire, Left field, Nigeria, Non-combustion uses of coal, North America, Poland, Recruitment, Retrained, Russia, South America, Spain, Staff, Students, USGS Science Data Catalog (SDC), United Kingdom, United States, Fewer tags Site characterization and regeneration attributes of managed and unmanaged ponderosa pine sites in the southwestern United States These data consist of environmental covariates, measured plot-level and tree characteristics for seven coniferous tree species across the southwestern United States. The objectives of the study were to assess how growth characteristics of conifer tree species vary across environmental gradients and across the different tree species. These data represent conifer growth under a variety of stand and site characteristics. These data were collected in the summer of 2019, from sites across Nevada, Arizona, New Mexico and Colorado, and collected by field crews directed by Matt Petrie (University of Nevada Las Vegas), Rob Hubbard (USDA Forest Service), Tom Kolb (Northern Arizona University) and John Bradford (U.S. Geological... Categories: Data; Tags: Arizona, Botany, California, Climatology, Colorado, All tags... Ecology, Forestry, Geography, Geomorphology, Idaho, Information Sciences, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, Soil Sciences, South Dakota, USGS Science Data Catalog (SDC), USGS:645abf44d34ec179a8378de3, Utah, Washington, Wyoming, biogeography, biota, climate change, climatologyMeteorologyAtmosphere, conifer forests, conifer growth, conifer regeneration, conifer tree regeneration, coniferous tree, daily meteorological estimates, data release, dryland forests, ecological processes, ecosystem management, effects of climate change, environment, environmental conditions, environmental covariates, estimates, field inventory and monitoring, field-measured, forest ecosystems, forest management, geoscientificInformation, meteorology, plot sampling, ponderosa forests, predictor variable, recruitment, regeneration failure, simulations, site characteristics, soil moisture, soil resources, soil temperature, southwestern United States, stand characteristics, tree characteristics, tree growth, vegetation, vegetation cover, vegetation type, western United States, Fewer tags Otolith microchemistry of adult bigheaded carp for determining early-life environments in the Upper Mississippi River 2016-2018 Data set includes water Sr:Ca, Ba:Ca, and δ18O for the Mississippi River and tributaries, and otolith Sr:Ca, Ba:Ca, and δ18O data from bigheaded carp (Silver Carp and BIghead Carp) collected in navigation pools 16-19 of the Upper Mississippi River in 2016 to 2018. Bigheaded carp (Bighead Carp and Silver Carp) are invasive species in the US and have spread throughout most of the lower Mississippi River Basin. Population abundance upstream of Lock and Dam 19 (LD19) on the Upper Mississippi River (UMR) has likely been limited by the high-head dam at this location, which restricts all upstream fish passage to the lock chamber. To determine early-life environments of adult bigheaded carp captured upstream LD19 at the... Categories: Data; Tags: Aquatic Biology, Asian carp, Hypophthalmichthys, Invasive carp, Invasive fishes, All tags... Navigation pools 16-19, USGS Science Data Catalog (SDC), Upper Mississippi River, biota, fish passage, microchemistry, otolith, recruitment, stable isotopes, Fewer tags Pinyon-juniper basal area, climate and demographics data from National Forest Inventory plots and projected under future density and climate conditions These data were compiled to help understand how climate change may impact dryland pinyon-juniper ecosystems in coming decades, and how resource management might be able to minimize those impacts. Objective(s) of our study were to model the demographic rates of PJ woodlands to estimate the areas that may decline in the future vs. those that will be stable. We quantified populations growth rates across broad geographic areas, and identified the relative roles of recruitment and mortality in driving potential future changes in population viability in 5 tree species that are major components of these dry forests. We used this demographic model to project pinyon-juniper population stability under future climate conditions,... Categories: Data; Tags: Arizona, Botany, California, Colorado, Ecology, All tags... Forestry, Geography, Idaho, Information Sciences, Juniperus monosperma, Juniperus osteosperma, Juniperus scopulorum, Montana, Nevada, New Mexico, North Dakota, Oregon, Pinus edulis, Pinus monophylla, Rocky Mountain juniper, South Dakota, Texas, USGS Science Data Catalog (SDC), United States Southwest, Utah, Utah juniper, biogeography, biota, climate change, climatologyMeteorologyAtmosphere, data release, droughts, dryland forests, ecosystem management, effects of climate change, field inventory and monitoring, forest ecosystems, forest inventory plot, forest management, mortality, oneseed juniper, pinyon-juniper forests, pinyon-juniper woodland, plot sampling, population and community ecology, population dynamics, population growth, recruitment, singleleaf pinyon, tree growth, tree mortality, tree recruitment, trees, twoneedle pinyon, vegetation, western United States, Fewer tags Otolith microchemistry and microstructure of age-0 silver carp for determining early-life environments and spawning periodicity in the Upper Mississippi River in 2016 In 2016, for the first time, an abundance of age-0 silver carp (Hypophthalmichthys molitrix) were captured at several sites upstream of Lock and Dam 19 on the Upper Mississippi River near Keokuk, Iowa. These data were collected in an attempt to determine the early life environments and frequency and timing of the reproductive events that led to a large year class of age-0 silver carp. This information is important for informing decisions about control measures. We sampled these fish to determine age (days) and early life environments using their otoliths. Sampled age-0 silver carp were collected from navigation Pools 18 and 19 from July–October 2016 using a variety of sampling gears. We aged these fish by counting... Categories: Data; Tags: Aquatic Biology, Asian carp, Ecology, Hypophthalmichthys molitrix, Navigation pool 18, All tags... Navigation pool 19, Silver carp, USGS Science Data Catalog (SDC), Upper Mississippi River, biota, invasive carp, otolith microchemistry, otolith stable isotope, recruitment, Fewer tags Benthic Communities as Mediators of Water Quality in Lower San Francisco Bay, California (2012-2019) San Francisco Bay and Estuary is largely urbanized and developed, and the southern bay is the most urbanized with many sources of nutrients, many concerns that the system might become eutrophic, and many questions about how South Bay has maintained its relatively good health. The hypotheses for why South Bay is not eutrophic, where other bays have not been so fortunate, include high bivalve grazing that limits net phytoplankton growth and high turbidity which also limits the phytoplankton growth rate. Understanding the bivalve grazing rates in the south bay includes the necessity of understanding temporal and spatial distributions of bivalves. Despite the critical need to understand all controls on eutrophication,... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Biomass, Bivalves, Lower San Francisco Bay, USGS Science Data Catalog (SDC), benthic community, All tags... benthic invertebrates, benthos, grazing rate, recruitment, Fewer tags Age ratios and landscape change covariates for mule deer (Odocoileus hemionus) herd units in Wyoming, USA, 1985-2019 Sagebrush ecosystems and wildlife that depend on them are under pressure from development, changing climate, as well as natural and human-caused disturbance. Mule deer (Odocoileus hemionus) are of particular concern due to population declines across many western states. We initiated a study to evaluate landscape-level changes ( disturbances, habitat treatments, development, and climate change) in Wyoming. This dataset contains age ratios (the number of juveniles to adult female mule deer) for 36 herd units in Wyoming, USA from 1985-2019. Age ratios provide a consistent metric of population demographics, including an index of recruitment (survival rate of young), which can be a sensitive metric of population change.... Categories: Data; Tags: Climatology, Ecology, Gas, Impacts of Energy Production, Land Use Change, All tags... Natural Gas, North America, Odocoileus hemionus, Oil, Petroleum, SO 3362, USGS Science Data Catalog (SDC), United States, WLCI, Wildlife Biology, Wind, Wyoming, Wyoming Landscape Conservation Initiative, biota, climate change, demography, environment, forage, grasslands, land-use change, mule deer, precipitation (atmospheric), recruitment, remediation, sagebrush ecosystems, ungulate, wind energy, winter range, Fewer tags A spatially and temporally intensive sampling study of benthic community and bivalve metrics in the Sacramento-San Joaquin Delta (ver. 2.0, May 2021) Phytoplankton is an important and limiting food source in the Sacramento-San Joaquin Delta and San Francisco Bay; the decline of phytoplankton biomass is one possible factor in the pelagic organism decline and specifically in the decline of the protected delta smelt. The bivalves Corbicula fluminea and Potamocorbula amurensis (hereafter Corbicula and Potamocorbula, respectively) have been shown to control phytoplankton biomass in several locations throughout the system, and their distribution and population dynamics are therefore of great interest. As one element of the California Department of Water Resources (DWR) and the U.S. Bureau of Reclamation’s (BOR) Environmental Monitoring Program (EMP), the Generalized... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bivalves, North San Francisco Bay, Sacramento-San Joaquin Delta, USGS Science Data Catalog (SDC), Water Resources, All tags... biomass, grazing rate, recruitment, Fewer tags Bivalve metrics in the North San Francisco Bay and Sacramento-San Joaquin Delta Phytoplankton is an important and limiting food source in the Sacramento-San Joaquin Delta and San Francisco Bay; the decline of phytoplankton biomass is one possible factor in the pelagic organism decline and specifically in the decline of the protected delta smelt. The bivalves Corbicula fluminea and Potamocorbula amurensis (hereafter Corbicula and Potamocorbula, respectively) have been shown to control phytoplankton biomass in several locations throughout the system, and their distribution and population dynamics are therefore of great interest. As one element of the Department of Water Resources' (DWR) and the Bureau of Reclamation’s (BOR) Environmental Monitoring Program (EMP), the benthic monitoring program... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bivalves, North San Francisco Bay, Sacramento-San Joaquin Delta, USGS Science Data Catalog (SDC), benthic community, All tags... benthic ecosystems, benthic invertebrates, biomass, recruitment, Fewer tags Rainbow trout reproduction data from 3 sampling trips (2018-2019) within Glen Canyon, AZ These data were compiled to describe population reproductive structure of rainbow trout in the Colorado River downstream of Glen Canyon Dam, Arizona. Objective(s) of our study were to describe the population on reproductive structure of the rainbow trout population in Glen Canyon on the Colorado River and evaluate the accuracy of nonlethal methods (manual expression and ultrasonography) for assigning sex and reproductive phase. These data represent samples collected in 3 sampling trips fall in October to November 2018, February 2019, and April 2019. These data were collected in Glen Canyon, from Glen Canyon Dam to Lees Ferry on the Colorado River. Specifically, we sampled three reaches within Glen Canyon to represent... Categories: Data; Tags: Aquatic Biology, Arizona, Colorado River, Ecology, Geography, All tags... Glen Canyon, Glen Canyon Dam, Information Sciences, Lees Ferry, USGS Science Data Catalog (SDC), biota, datasets, field experiments, field inventory and monitoring, field methods, field sampling, fish, gonad tissue, histological assignment, inlandWaters, laboratory methods, manual expression, nonlethal methods, population and community ecology, rainbow trout, recruitment, reproductive phase, river reaches, samples, sex phase, sexing (plants & animals), size classes, tabular data, tailwater, ultrasonography, Fewer tags