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Felsenthal National Wildlife Refuge green-tree reservoir 2001 forest plot measurements A green-tree reservoir (GTR) is a stand of bottomland hardwoods that is intentionally flooded in the fall and winter to support migrating waterfowl. Bottomland hardwood forest plots in the GTR on Felsenthal National Wildlife Refuge (FNWR) are measured every 5-6 years to monitor tree survival, growth, and mortality. This dataset presents the measurements of all the trees in 54 plots during the year 2001. Parameters measured are species, diameter, vigor class, canopy class, and whether or not the tree is a new recruit in 2001. These parameters are defined in the Entity and Attributes section of this metadata file. Additional Information: A series of square 0.1 ha (31.6 m X 31.6 m) permanent plots was previously established... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Felsenthal National Wildlife Refuge, biota, bottomland hardwoods, environment, All tags... forest ecosystems, green tree reservoir, green-tree reservoir, greentree reservoir, long-term ecological monitoring, plot sampling, wetland ecosystems, Fewer tags Static chamber gas fluxes and carbon and nitrogen isotope content of age-dated sediment cores from a Phragmites wetland in Sage Lot Pond, Massachusetts, 2013-2015 Coastal wetlands are major global carbon sinks, however, they are heterogeneous and dynamic ecosystems. To characterize spatial and temporal variability in a New England salt marsh, static chamber measurements of greenhouse gas (GHG) fluxes were compared among major plant-defined zones (high marsh dominated by Distichlis spicata and a zone of invasive Phragmites australis) during 2013 and 2014 growing seasons. Two sediment cores were collected in 2015 from the Phragmites zone to support previously reported core collections from the high marsh sites (Gonneea and others 2018). Collected cores were up to 70 cm in length with dry bulk density ranges from 0.04 to 0.33 grams per cubic centimeter and carbon content 22.4%... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 137-cesium, 210-lead, Cape Cod (606914), Commonwealth of Massachusetts (606926), Constant Rate of Supply (CRS) model, All tags... Ecology, Masphee (615624), Sage Lot Pond (616458), United States of America, accretion rate, age model, biota, carbon, carbon burial, carbon isotope analysis, coastal processes, ecological processes, ecological restoration, elevation, environment, geoscientificInformation, inlandWaters, invasive species, location, nitrogen, oceans, piston coring, plot sampling, radiometric dating, salt marshes, sea-level change, sedimentation, soil chemistry, wetland ecosystems, wetland functions, wetland soils, wetlands, Fewer tags Felsenthal National Wildlife Refuge green-tree reservoir 2016 forest plot measurements A green-tree reservoir (GTR) is a stand of bottomland hardwoods that is intentionally flooded in the fall and winter to support migrating waterfowl. Bottomland hardwood forest plots in the GTR on Felsenthal National Wildlife Refuge (FNWR) are measured every 5-6 years to monitor tree survival, growth, and mortality. This dataset presents the measurements of all the trees in 54 plots during the year 2016. Parameters measured are species, diameter, vigor class, canopy class, whether or not the tree is a new recruit in 2016, whether the tree is a tip-up (windthrow) or a gap tree in 2016, and whether Hypoxylon canker fungus is present on the tree in 2016. These parameters are defined in the Entity and Attributes section... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Felsenthal National Wildlife Refuge, biota, bottomland hardwoods, environment, All tags... forest ecosystems, green tree reservoir, green-tree reservoir, greentree reservoir, long-term ecological monitoring, plot sampling, wetland ecosystems, Fewer tags 6. Strata boundaries for nesting Wedge-tailed Shearwater (Ardenna pacifica) surveys at Kīlauea Point National Wildlife Refuge, Kauaʻi, in 2019 We used a stratified-random sampling approach to estimate the total abundance of Wedge-tailed Shearwater (Ardenna pacifica) nest sites across Kīlauea Point National Wildlife Refuge (KPNWR), Kauaʻi, during 1-7 July 2019. We first identified strata as unique geographic areas of the refuge to account for potential differences in nesting habitat and non-uniform nest site clustering. We then sub-divided strata where we expected high, low, minimal, or no nest site abundance. These distinctions were based on knowledge of shearwater nesting distribution gained while performing extensive ground-searching for tropicbirds across the entire refuge in April and May 2019. We delineated strata boundaries using recent satellite... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Kauai, USGS-EMA-LOW-SB SMC: Seabirds, animal and plant census, biota, plot sampling Atlas of Breeding Seabirds of the Main Hawaiian Islands The U.S. Geological Survey, Western Ecological Research Center (USGS-WERC), with support from the Bureau of Ocean Energy Management (BOEM), is working with many partners to generate an Atlas of Breeding Seabirds of the Main Hawaiian Islands. This atlas will provide benchmarks to measure future changes in seabird population sizes and breeding distribution throughout Hawai‘i and will also assist efforts to evaluate threats to Hawaiian seabirds both on land and at sea. Ultimately, species- and colony-specific data for main Hawaiian Island seabirds on land and at sea will inform evaluations of potential risk and options for mitigation strategies for effects of offshore energy infrastructure on seabirds. This ScienceBase... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Kauai, USGS-EMA-LOW-SB SMC: Seabirds, aerial photography, animal and plant census, biota, All tags... plot sampling, Fewer tags Felsenthal National Wildlife Refuge green-tree reservoir 2006 forest plot measurements A green-tree reservoir (GTR) is a stand of bottomland hardwoods that is intentionally flooded in the fall and winter to support migrating waterfowl. Bottomland hardwood forest plots in the GTR on Felsenthal National Wildlife Refuge (FNWR) are measured every 5-6 years to monitor tree survival, growth, and mortality. This dataset presents the measurements of all the trees in 54 plots during the year 2006. Parameters measured are species, diameter, vigor class, canopy class, and whether or not the tree is a new recruit in 2006. These parameters are defined in the Entity and Attributes section of this metadata file. Additional Information: A series of square 0.1 ha (31.6 m X 31.6 m) permanent plots was previously established... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Felsenthal National Wildlife Refuge, biota, bottomland hardwoods, environment, All tags... forest ecosystems, green tree reservoir, green-tree reservoir, greentree reservoir, long-term ecological monitoring, plot sampling, wetland ecosystems, Fewer tags Shasta Salamanders Surveys for the Shasta-Trinity National Forest (ver. 2.0, July 2020) The Shasta salamander (Hydromantes shastae) has been petitioned for listing under the Endangered Species Act. The greatest threat to the species is likely habitat loss that will be caused by the increase in elevation of Shasta Lake that will occur with proposed increases in the height of Shasta Dam to increase water storage capacity and maintain cold water for Chinook salmon (Oncorhynchus tshawytscha). Another potential threat is the fungus Batrachochytrium salamandrivorans, which has not yet been detected in North America but is lethal to related salamanders (Hydromantes strinatii) in Europe (Martel et al. 2014). In addition to these threats, recent genetic evidence suggests that the species as originally petitioned... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Shasta National Forest, Shasta-Trinity National Forest, Trinity National Forest, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, amphibians, biota, field inventory and monitoring, herpetology, plot sampling, Fewer tags Summary Statistics Data for Greater Sage-Grouse (Centrocercus urophasianus) Nesting and Brood-Rearing Microhabitat in Nevada and California—Spatial Variation in Selection and Survival Patterns, 2009–16 This dataset provides summary statistics of multiple sage-grouse microhabitat characteristics of the Great Basin. These data support the following publication: Coates, P.S., Brussee, B.E., Ricca, M.A., Dudko, J.E., Prochazka, B.G., Espinosa, S.P., Casazza, M.L., and Delehanty, D.J., 2017, Greater sage-grouse (Centrocercus urophasianus) nesting and brood-rearing microhabitat in Nevada and California—Spatial variation in selection and survival patterns: U.S. Geological Survey Open-File Report 2017-1087, 79 p., https://doi.org/10.3133/ofr20171087. Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Animal Tracking, Animal and plant census, Biota, Fire sensitive plants, Great Basin, All tags... Plot sampling, USGS Science Data Catalog (SDC), United States of America, Wildlife food plants, Wildlife habitat management, transect sampling, Fewer tags Felsenthal National Wildlife Refuge green-tree reservoir 1995 forest plot measurements A green-tree reservoir (GTR) is a stand of bottomland hardwoods that is intentionally flooded in the fall and winter to support migrating waterfowl. Bottomland hardwood forest plots in the GTR on Felsenthal National Wildlife Refuge (FNWR) are measured every 5-6 years to monitor tree survival, growth, and mortality. This dataset presents the measurements of all the trees in 54 plots during the year 1995. Parameters measured are species, diameter, vigor class, canopy class, and whether or not the tree is a new recruit in 1995. These parameters are defined in the Entity and Attributes section of this metadata file. Additional Information: A series of square 0.1 ha (31.6 m X 31.6 m) permanent plots was previously established... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Felsenthal National Wildlife Refuge, biota, bottomland hardwoods, environment, All tags... forest ecosystems, green tree reservoir, green-tree reservoir, greentree reservoir, long-term ecological monitoring, plot sampling, wetland ecosystems, Fewer tags Felsenthal National Wildlife Refuge green-tree reservoir 2011 forest plot measurements A green-tree reservoir (GTR) is a stand of bottomland hardwoods that is intentionally flooded in the fall and winter to support migrating waterfowl. Bottomland hardwood forest plots in the GTR on Felsenthal National Wildlife Refuge (FNWR) are measured every 5-6 years to monitor tree survival, growth, and mortality. This dataset presents the measurements of all the trees in 54 plots during the year 2011. Parameters measured are species, diameter, vigor class, canopy class, whether or not the tree is a new recruit in 2011, and whether the tree is a tip-up (windthrow) or a gap tree in 2011. These parameters are defined in the Entity and Attributes section of this metadata file. Additional Information: A series of... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Felsenthal National Wildlife Refuge, biota, bottomland hardwoods, environment, All tags... forest ecosystems, green tree reservoir, green-tree reservoir, greentree reservoir, long-term ecological monitoring, plot sampling, wetland ecosystems, Fewer tags Assessment of Giant Sequoia Mortality and Regeneration within Burned Groves in Sequoia and Kings Canyon National Parks (ver. 2.0, January 2024) Provided are data containing condition assessments on individual giant sequoia (Sequoiadendron giganteum; SEGI) stems and post-fire regeneration counts within Board Camp, Suwanee, New Oriole Lake, Homer’s Nose, and a subset of Redwood Mountain and Dillonwood groves of Sequoia and Kings Canyon national parks, respectively. Stem data contain condition-related attributes (e.g., spatial location, diameter breast height, status - live or dead, percent canopy that is live, scorched or torched). Regeneration plots are located using a spatially-balanced sampling design (Generalized Random Tessellation Stratified - 'GRTS'). Each regeneration plot is a fixed radius circle (11.35 meters or 17.84 meters) and contain count data... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Ecology, Forestry, Sequoia National Park, USGS Science Data Catalog (SDC), biota, All tags... ecology, ecosystem resilience, environment, fires, forest ecosystems, plot sampling, Fewer tags Felsenthal National Wildlife Refuge green-tree reservoir 1990 forest plot measurements A green-tree reservoir (GTR) is a stand of bottomland hardwoods that is intentionally flooded in the fall and winter to support migrating waterfowl. Bottomland hardwood forest plots in the GTR on Felsenthal National Wildlife Refuge (FNWR) are measured every 5-6 years to monitor tree survival, growth, and mortality. This dataset presents the measurements of all the trees in 54 plots during the year 1990. Parameters measured are species, diameter, vigor class, and canopy class. These parameters are defined in the Entity and Attributes section of this metadata file. Additional Information: A series of square 0.1 ha (31.6 m X 31.6 m) permanent plots was previously established between 1985 and 1987 in forest stands... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Felsenthal National Wildlife Refuge, biota, bottomland hardwoods, environment, All tags... forest ecosystems, green tree reservoir, green-tree reservoir, greentree reservoir, long-term ecological monitoring, plot sampling, wetland ecosystems, Fewer tags Felsenthal National Wildlife Refuge green-tree reservoir study A green-tree reservoir (GTR) is a stand of bottomland hardwoods that is intentionally flooded in the fall and winter to support migrating waterfowl. Bottomland hardwood forest plots, installed 1985-1987 in the GTR on Felsenthal National Wildlife Refuge (FNWR), are measured every 5-6 years to monitor tree survival, growth, and mortality. An accompanying datafile contains the names, locations, and elevations of the forest plots. These parameters are defined in the Entity and Attributes section of this metadata file. Historical Perspective: Permanent forest plots were established between 1985 and 1987 in forest stands within the GTR on FNWR by a team from the U.S. Army Corps of Engineers, Waterways Experiment Station... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Ecology, Felsenthal National Wildlife Refuge, USGS Science Data Catalog (SDC), biota, All tags... bottomland hardwoods, enviroment, forest ecosystems, green tree reservoir, green-tree reservoir, greentree reservoir, long-term ecological monitoring, plot sampling, wetland ecosystems, Fewer tags