Filters: Tags: {"type":"Place"} (X) > partyWithName: Patrick B Shafroth (X) > partyWithName: U.S. Geological Survey (X)

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Riparian vegetation, topography, sediment quality, and river corridor geomorphology in the Lower Virgin River, Nevada and Arizona, before (2010) and after (2011-2012) a 40-year return period flood This data release presents observations of riparian vegetation, topography, sediment quality, and river corridor geomorphology in four river reaches of the Lower Virgin River extending downstream 62 river kilometers (rkm) from near the town of Littlefield (AZ) and the Arizona-Nevada border at rkm 119. Methods included field observations and analysis of remotely-sensed data before (2010) and after (2011-2012) a 40-year return period flood (December 2010, at the gaging station “Virgin River near Littlefield” (USGS gage #09415000)). The data release includes four .csv files related to field observations: UTM coordinates of field transect locations; vegetation and geomorphology; species codes; and sediment quality.... Tags: Arizona, Nevada, Tamarix, USGS Science Data Catalog (SDC), biota, All tags... braided channel, channel widening, disturbance, large flood, resilience, Fewer tags Active channel in the Lower Virgin River before and after a 40 yr flood (December 2010) Active channel as defined by remote sensing before (2010 and after (2011) a 40 year return period flood (December 2010) within the lower Virgin River, Nevada. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, Nevada, Virgin River, active channel, biota, All tags... lidar, orthophotography, remote sensing, Fewer tags Colorado River Delta Project: A compilation of vegetation indices, phenology assessment metrics, and estimates of evapotranspiration for circular bird plots in the Colorado River delta between 2000-2020 (ver. 1.0) These data were compiled to understand the effects of riparian vegetation health on local abundance and species diversity of land birds. The primary objective of our study was to to determine the effects of riparian restoration on birds in the Colorado River delta. These tabular data represent vegetation indices and evapotranspiration (ET) data at varying spatial scales that correspond to avian use circles of 100 to 2000 meters. Three vegetation reflectance indices (VIs): NDVI, EVI, and EVI2 were obtained from Landsat imagery with a biweekly temporal frequency, and covering the entire period of bird surveys (2002-2020). The Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) and two-band... Tags: Arizona, California, Colorado River Delta, EVI, EVI2, All tags... Enhanced Vegetation Index, Mexico, Morelos Dam, NDVI, Normalized Difference Vegetation Index, USGS Science Data Catalog (SDC), Yuma, avian use circles, avian use data, biota, bird abundance, bird diversity, bird richness, bird species, bird-vegetation relationships, birds, circular plots, data release, datasets, evapotranspiration, land use and land cover, marshland habitat, plot sampling, relative abundance analysis, riparian, riparian habitat, sampling sites, time series datasets, two-band EVI, vegetation, vegetation greenness, vegetation index, water use, wetland ecosystems, Fewer tags Vegetation and geomorphic surfaces in the Elwha River delta, Washington, after dam removal, derived from 2016 and 2018 aerial imagery and 2007, 2014, and 2018 field surveys Removal of two large dams from the Elwha River, Washington USA, in 2011-2014 released ~20.5 metric tons (Mt) of impounded sediment, ~5.4 Mt of which was deposited in the river delta and estuary. This dataset presents measurements of geomorphic surfaces, vegetation colonization, and plant community development in the Elwha River delta and estuary after dam removal. Geomorphic surfaces and vegetation colonization were estimated from aerial imagery of the delta and estuary in 2016 and 2018. Plant community development was quantified from field plot surveys of pioneer plant communities on new surfaces in 2014 and 2018 and of established delta and estuarine plant communities on older surfaces in 2007, 2014, and 2018.... Tags: Clallam County, Ecology, Elwha River, Geomorphology, Olympic Peninsula, All tags... Port Angeles, Remote Sensing, USGS Science Data Catalog (SDC), United States of America, Washington, biota, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geomorphology, geoscientificInformation, geospatial datasets, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags Fish abundance in the Elwha River estuary, Washington, from 2006 to 2014 This portion of the data release presents fish abundance data from samples collected in the Elwha River estuary, Washington, in 2006, 2007, 2013, and 2014 (no associated USGS Field Activities numbers because data were collected predominantly by biologists from the Lower Elwha Klallam Tribe). We used the Puget Sound beach seining protocol (Simenstad and others, 1991) to sample fish populations in the Elwha River estuary complex. The beach seine was 38 m long x 2 m deep, with a 2 m x 2 m bag in the center of the net; mesh size was 3.18 mm, 6.35 mm, and 31.75 mm, for the bag, center panel, and wings, respectively. The seine net was deployed from bank to bank by a small skiff and then pulled on shore. The number of... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, State of Washington, Strait of Juan de Fuca, All tags... biota, fish, fish, fish, fishes, oceans, species diversity, Fewer tags Terrestrial invertebrate abundance in the Elwha River estuary, Washington, in 2007 and 2013. This portion of the data release presents terrestrial invertebrate abundance data from samples collected in emergent and shrub vegetation along the edge of the Elwha River estuary, Washington, in 2007 and 2013 (no associated USGS Field Activities numbers because data were collected predominantly by biologists from the Lower Elwha Klallam Tribe). We deployed terrestrial insect fallout traps at ten locations in the east estuary, five replicates each in shrub and emergent (littoral) vegetation habitats. Clear, rectangular traps (2,400 cm2 in 2007 and 3,526 cm2 in 2013) were filled with 5 cm of filtered soapy water and deployed for 72 hours. Invertebrate counts from 2013 were standardized to the 2007 bin size to account... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, State of Washington, Strait of Juan de Fuca, All tags... animals/invertebrates, biota, invertebrates, invertebrates, invertebrates, oceans, species diversity, Fewer tags 1. Occurrence data to train models for woody riparian native and invasive plant species in the conterminous western USA We developed habitat suitability models for occurrence of three invasive riparian woody plant taxa of concern to Department of Interior land management agencies, as well as for three dominant native riparian woody taxa. Study taxa were non-native tamarisk (saltcedar; Tamarix ramosissima, Tamarix chinensis), Russian olive (Elaeagnus angustifolia) and Siberian elm (Ulmus pumila) and native plains/Fremont cottonwood (Populus deltoides ssp. monilifera and ssp. wislizenii, Populus fremontii), narrowleaf cottonwood (Populus angustifolia), and black cottonwood (Populus balsamifera ssp. trichocarpa and ssp. balsamifera). We generally followed the modeling workflow developed in Young et al. 2020. We developed models using... Categories: Data; Tags: Elaeagnus angustifolia, Populus spp., SAHM, Software for Assisted Habitat Modeling, Species Distribution modeling, All tags... Tamarix spp., Ulmus pumila, United States, VisTrails, biota, habitat suitability, invasive plants, riparian, Fewer tags Vegetation habitat units derived from 2014 aerial imagery and field data for the Elwha River estuary, Washington Estuary vegetation cover delineated from 28 August 2014 0.15-meter-resolution NPS Elwha PlaneCam aerial imagery at a scale of 1:1500. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, United States of America, All tags... Washington, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geoscientificInformation, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags Active channel in the Lower Virgin River before a 40 yr flood (December 2010) Active channel as defined by remote sensing before (2010) a 40 year return period flood (December 2010) within the lower Virgin River, Nevada. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, Nevada, Virgin River, active channel, biota, All tags... lidar, orthophotography, remote sensing, Fewer tags Riparian vegetation abundance (percent cover) in the Elwha River estuary, Washington, in 2007 and 2014 This portion of the data release presents riparian plant species abundance (percent cover) data from plots sampled in the Elwha River estuary, Washington, in 2007 and 2014. In August 2007, we established 21 vegetation plots within the study area in a stratified random fashion, with three to five plots in five of the vegetation cover types denoted in the habitat classification maps: mixed riparian forest, willow-alder forest, riparian shrub, emergent marsh/marsh-shrub transition, and dunegrass. Each plot was 100 square meter, usually 10 m x 10 m, but in areas where the vegetation patch was narrow, plots were either 4 m x 25 m or 5 m x 20 m. We visually estimated percent cover by species of all vascular plants within... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, State of Washington, All tags... Strait of Juan de Fuca, United States of America, dam removal, environment, estuary, geoscientificInformation, river, vegetation, wetland ecosystems, Fewer tags Vegetation habitat units derived from 2009 aerial imagery and field data for the Elwha River estuary, Washington Estuary vegetation cover delineated from 11 September 2009 1-meter-resolution NAIP aerial imagery at a scale of 1:1500. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, United States of America, All tags... Washington, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geoscientificInformation, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags Vegetation habitat units derived from 2013 aerial imagery and field data for the Elwha River estuary, Washington Estuary vegetation cover delineated from 26 August 2013 0.15-meter-resolution NPS Elwha PlaneCam aerial imagery at a scale of 1:1500. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, United States of America, All tags... Washington, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geoscientificInformation, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags Geomorphic habitat units derived from 2014 aerial imagery and elevation data for the Elwha River estuary, Washington Estuary geomorphic units delineated at a scale of 1:1500 using a combination of (a) 28 August 2014 0.15 meter resolution NPS Elwha PlaneCam aerial imagery; and (b) elevation-colored and hillshaded digital elevation models from USGS backpack/jetski topobathy surveys (5-8 September 2014) for areas < MHHW and aerial lidar surveys (7 November 2014) supplemented with NPS Elwha PlaneCam SfM photogrammetry data (30 September 2014) for elevations > MHHW. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, United States of America, All tags... Washington, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geomorphology, geoscientificInformation, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags Geomorphic habitat units derived from 2009 aerial imagery and elevation data for the Elwha River estuary, Washington Estuary geomorphic units delineated at a scale of 1:1500 using a combination of (a) 11 September 2009 1 meter resolution NAIP aerial imagery; and (b) elevation-colored and hillshaded digital elevation models from USGS backpack/jetski topobathy surveys (17 September 2009) for areas < MHHW and aerial lidar surveys (4-6 April 2009) for elevations > MHHW. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, United States of America, All tags... Washington, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geomorphology, geoscientificInformation, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags Geomorphic habitat units derived from 2013 aerial imagery and elevation data for the Elwha River estuary, Washington Estuary geomorphic units delineated at a scale of 1:1500 using a combination of (a) 26 August 2013 0.15 meter resolution NPS Elwha PlaneCam aerial imagery; and (b) elevation-colored and hillshaded digital elevation models from USGS backpack/jetski topobathy surveys (16 September 2013) for areas < MHHW and aerial lidar surveys (17 October 2012) supplemented with NPS Elwha PlaneCam SfM photogrammetry data (19 September 2013) for elevations > MHHW. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, United States of America, All tags... Washington, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geomorphology, geoscientificInformation, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags Riparian vegetation species richness in the Elwha River estuary, Washington, in 2007 and 2014 This portion of the data release presents riparian plant species richness (number of unique taxa) data from plots sampled in the Elwha River estuary, Washington, in 2007 and 2014. In August 2007, we established 21 vegetation plots within the study area in a stratified random fashion, with three to five plots in five of the vegetation cover types denoted in the habitat classification maps: mixed riparian forest, willow-alder forest, riparian shrub, emergent marsh/marsh-shrub transition, and dunegrass. Each plot was 100 square meters, usually 10 m x 10 m, but in areas where the vegetation patch was narrow, plots were either 4 m x 25 m or 5 m x 20 m. We visually estimated percent cover by species of all vascular plants... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, State of Washington, All tags... Strait of Juan de Fuca, United States of America, dam removal, environment, estuary, geoscientificInformation, river, species richness, vegetation, wetland ecosystems, Fewer tags Water quality in the Elwha River estuary, Washington, from 2006 to 2014. This portion of the data release presents water column dissolved nutrient concentration data and water quality parameters from samples collected in the Elwha River estuary, Washington, in 2006, 2007, 2013, and 2014 (USGS Field Activities L-15-13-PS, L-24-13-PS, T-R5-13-PS, T-R6-13-PS, T-RA-14-PS, 2014-614-FA, 2014-628-FA, 2014-633-FA, 2014-666-FA). Water column samples were collected by hand in acid-washed opaque bottles from multiple locations. Water quality was measured using a handheld Hydolab Data Sonde 4a. The locations of water sample collections were determined with a hand-held global positioning system (GPS). The water samples were filtered through GF/F filters immediately after collection. The filtrate... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, Strait of Juan de Fuca, marine chemistry, All tags... nutrients, oceans, water quality, water quality, water-quality parameters, Fewer tags Vegetation habitat units derived from 2012 aerial imagery and field data for the Elwha River estuary, Washington Estuary vegetation cover delineated from 30 August 2012 0.15-meter-resolution NPS Elwha PlaneCam aerial imagery at a scale of 1:1500. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Clallam County, Elwha River, Olympic Peninsula, Port Angeles, United States of America, All tags... Washington, coastal ecosystems, coastal processes, dam, dam removal, ecological change, ecological processes, environment, geoscientificInformation, habitats, human impacts, human impacts on habitats, vegetation, Fewer tags Sediment grain size in the Elwha River estuary, Washington, from 2013 and 2014. This portion of the data release presents sediment grain-size data from samples collected in the Elwha River estuary, Washington, in July 2013 and June 2014 (USGS Field Activities L-15-13-PS and 2014-628-FA). Surface sediment was collected from one location in 2013 and five locations in 2014 using a using a push core. The locations of grab samples were determined with a hand-held global positioning system (GPS). The cores were split into one- to three-centimeter sections. The grain-size distributions of samples were determined using standard techniques developed by the USGS Pacific Coastal and Marine Science Center sediment lab. Size fractions are defined as gravel (> 2 mm), sand (63 micron to 2 mm), silt (4 micron... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, State of Washington, Strait of Juan de Fuca, All tags... grain-size analysis, oceans, sediment, sediment transport, sedimentation, substrate, Fewer tags Aquatic invertebrate abundance in the Elwha River estuary, Washington, in 2007 and 2013 This portion of the data release presents aquatic invertebrate abundance data from samples collected in the Elwha River estuary, Washington, in 2007 and 2013 (no associated USGS Field Activities numbers because data were collected predominantly by biologists from the Lower Elwha Klallam Tribe). Replicate benthic samples were collected at 18 locations throughout the estuary complex using a petite Ponar grab sampler (appx. 2400 mL sample) and sorted through a 500-micron sieve. Samples were fixed in 10 percent formalin for 3 to 5 days before being transferred to 70 percent ethanol until processing. Individuals were identified to the lowest possible taxonomic resolution, but are grouped according to insect Orders in... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, State of Washington, Strait of Juan de Fuca, All tags... animals/invertebrates, biota, invertebrates, invertebrates, invertebrates, oceans, species diversity, Fewer tags 1 2 »