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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 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 Spatial datasets to support analysis of the influence of tributary junctions on patterns of fluvial features and riparian vegetation along the Colorado and Dolores Rivers (Utah and Colorado) To examine potential influence of tributaries on riparian habitat complexity along ~216 km of the Colorado River in Utah and ~300km of the Dolores River in Colorado and Utah, we first classified fluvial features and land cover of the bottomland on remotely sensed imagery. We then examined riparian and geomorphic patterns within the near channel zone with variably-sized spatial units. We used supervised image classification to create a 2-m resolution map of the primary land cover types within bottomlands of the Colorado and Dolores rivers, including two anthropogenic classes, four vegetation classes, bare ground, water and shadow. We selected these cover classes as major vegetation and land cover types that could... Tags: Colorado, Colorado River, Dolores River, Thiessen polygon, USGS Science Data Catalog (SDC), All tags... Utah, channel class, cover class, environment, geographic information systems, geoscientificInformation, geospatial datasets, river systems, tributary, Fewer tags Woody riparian invasive plant presence, stem density, and rank dominance and environmental conditions in 2012 at 238 bridge crossings in the Colorado Headwaters, upper/middle Rio Grande, upper Arkansas, and South Platte River Basins, USA This dataset presents observations and measurements of riparian plant invasion, community composition, and environmental conditions at 238 bridge crossings in four western USA river basins: the Colorado Headwaters, upper/middle Rio Grande, upper Arkansas River, and South Platte River (281,946 square kilometers). The 238 sites are a stratified random sample of all bridge crossings in the river basins, with roughly equal numbers of sites in landscapes dominated by (1) urban and residential (developed) land-use, (2) agricultural (cultivated) land-use, and (3) undeveloped land cover. The dataset includes field observations of stem counts for three non-native riparian woody plant taxa (Tamarix ramosissima x T. chinensis... Categories: Data; Tags: Colorado, USGS Science Data Catalog (SDC), biological invasion, biota, community composition, All tags... environment, forest, inlandWaters, land use, land-use, species composition, streambank stabilization, urban, western North America, western United States, Fewer tags Spatial data sets to support conservation planning along the Colorado River in Utah With the help of local and regional natural resource professionals, we developed a broad-scale, spatially-explicit assessment of 146 miles (~20,000 acres) of the Colorado River mainstem in Grand and San Juan Counties, Utah that can be used to support conservation planning and riparian restoration prioritization. For the assessment we: 1) acquired, modified or created spatial datasets of Colorado River bottomland conditions; 2) synthesized those datasets into habitat suitability models and estimates of natural recovery potential, fire risk and relative cost; 3) investigated and described dominant ecosystem trends and human uses, and; 4) suggested site selection and prioritization approaches. Here, we make available... Tags: Arches National Park, Canyonlands National Park, Colorado River, Grand County, Moab, All tags... San Juan County, USGS Science Data Catalog (SDC), Upper Colorado River, Utah, biota, conservation planning, environment, habitat suitability, inlandWaters, riparian, tamarisk, Fewer tags Riparian vegetation, topography, and ground cover constituents along the Upper Colorado River near Moab, UT (2010-2017) (ver. 1.1, Jan 2023) The data release presents observations of riparian vegetation, topography, and ground cover in two river reaches of the Upper Colorado River within a river segment extending 208 river kilometers (rkm), from near the Colorado/Utah border to the confluence of the Green River. Methods included field observations and analysis of the plant community five times over eight years in the fall of 2010, 2012, 2013, 2015 and 2017, encompassing a second cycle of biocontrol-induced dieback of invasive Tamarix spp. shrubs. The data release includes four .csv files related to field observations: UTM coordinates of field transects; vegetation, topography and ground surface information at the pinpoint level and at the transect level;... Categories: Data, Data Release - Revised; Tags: Moab, Salix, Tamarix, USGS Science Data Catalog (SDC), Upper Colorado River, All tags... Utah, biocontrol, biota, defoliating beetle, riparian plant community, saltcedar, Fewer tags Riparian seed dispersal phenology and snowmelt streamflow timing in the upper South Platte River Basin, observed in 2010-2011 and simulated for 1962-2098 This dataset presents observations and model projections of climate, riparian cottonwood and willow seed release phenology, snowmelt streamflow timing, and relative timing of seed release and snowmelt peak streamflow in the upper South Platte River Basin, USA. We collected field observations of seed release phenology from three riparian Salicaceae species at 14 riparian sites and used those observations to develop 2-3 temperature-driven phenology models for each species. We used those phenology models, together with PRMS hydrological models of streamflow at six of the sites, to simulate historical phenology, snowmelt streamflow timing, and relative timing based on gridded temperature data from 1961-1990 and to project... Categories: Data; Tags: Big Thompson, Cache La Poudre, Clear Creek, Saint Vrain River, South Boulder Creek, All tags... State of Colorado, USA, State of Wyoming, USA, USGS Science Data Catalog (SDC), Upper Laramie, Upper South Platte, biota, effects of climate change, environment, mathematical modeling, phenology, streamflow, wetland ecosystems, Fewer tags Southwestern Riparian Plant Trait Matrix, Colorado River, Grand Canyon, Arizona (ver. 2.0, January 2022) Trait-based approaches to vegetation analyses are becoming more prevalent in studies of riparian vegetation dynamics, including responses to flow regulation, groundwater pumping, and climate change. These analyses require species trait data compiled from the literature and floras or original field measurements. Gathering such data makes trait-based research time intensive at best and impracticable in some cases. To support trait-based analysis of vegetation along the Colorado River through Grand Canyon, a data set of 20 biological traits and ecological affinities for 179 species occurring in that study area was compiled. This diverse flora shares species with many riparian areas in the western USA and includes species... Categories: Data, Data Release - Revised; Tags: Arizona, Botany, Coconino County, Colorado River, Ecological tolerances, All tags... Ecology, Ecology, Freshwater Ecosystems, Functional traits, Geography, Grand Canyon National Park, Information Sciences, Lees Ferry, Mohave County, Riparian plant species, Southwestern United States, USGS Science Data Catalog (SDC), United States, Vascular Plants, Fewer tags Modeled Streamflow Metrics on Small, Ungaged Stream Reaches in the Upper Colorado River Basin: Data Modeling streamflow is an important approach for understanding landscape-scale drivers of flow and estimating flows where there are no streamgage records. In this study conducted by the U.S. Geological Survey in cooperation with Colorado State University, the objectives were to model streamflow metrics on small, ungaged streams in the Upper Colorado River Basin and identify streams that are potentially threatened with becoming intermittent under drier climate conditions. The Upper Colorado River Basin is a region that is critical for water resources and also projected to experience large future climate shifts toward a drying climate. A random forest modeling approach was used to model the relationship between streamflow... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Ecosystems, Fisheries, Streamflow, USGS Science Data Catalog (SDC), Upper Colorado River Basin, All tags... Upper Colorado River Basin, random forests, random forests, streamflow, streamflow modeling, streamflow modeling, ungaged streams, ungaged streams, Fewer tags Chaco Canyon 1930s and 2000 geospatial data A study of arroyo evolution in northern New Mexico (Friedman and others, 2015) assessed geomorphic change in the Chaco Wash arroyo from the 1930s to 2000. As part of this study, in October 2000 a trench was excavated across the arroyo bottom and a high-precision (Real-time kinematic) GPS survey was conducted. GPS survey data were used to georeference a 1930s topographic map and to identify key geomorphic features, including the tops of the arroyo walls and the channel thalweg. Linear features were mapped in a GIS for use in extracting channel thalweg profiles, an arroyo cross section, and arroyo widths (1930s and 2000) as a function of distance down-valley. These features have been converted to shapefiles included... Tags: Chaco Canyon, Chaco Culture National Historical Park, NM, Chaco River, Chaco Wash, NM, GPS survey, All tags... New Mexico, USGS Science Data Catalog (SDC), arroyos, erosion, fluvial geomorphology, remote sensing, riparian vegetation, sedimentation, semiarid, Fewer tags Occurrence data and 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... Tags: Elaeagnus angustifolia, Populus spp., SAHM, Software for Assisted Habitat Modeling, Species Distribution modeling, All tags... Tamarix spp., USGS Science Data Catalog (SDC), Ulmus pumila, United States, VisTrails, biota, habitat suitability, invasive plants, none, riparian, Fewer tags Vascular plant diversity and associated environmental variables along the Elwha River, Washington, 2005-2017 The data release presents observations of riparian vegetation, topography, soil characteristics, and ground cover in three river segments located above, below, and between the former Glines Canyon and Elwha Dams on the Elwha River, near Port Angeles, WA (river kilometers 2.5 to 31) to assess effects of dam removal on riparian vegetation. Vegetation data were collected before dam removal in 2005 and 2010, and after dam removal in 2013, 2014, 2016, and 2017. Vegetation data were collected from 100 square meter plots located on 15 cross-river transects spanning all riparian landforms. Soil samples collected in 2017 were analyzed for soil nutrients and texture. Topographic surveys were conducted to measure the elevation... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Ecology, Elwha River, Geyser Valley, Olympic National Park, All tags... USGS Science Data Catalog (SDC), USGS-EMA-LOW-SS Dam Removal, Washington, Water Resources, biota, dam removal, freshwater ecosystems, river systems, species diversity, wetland ecosystems, Fewer tags Occurrence of plants in plots along the Gunnison River, Colorado, 1990-2017 In 1990 the US Geological Survey Fort Collins Science Center and National Park Service Water Resources Division established 133 permanent 1meter (m) X 2 m plots along the Gunnison River near Warner Point in Black Canyon of the Gunnison National Park. A one-dimensional hydraulic model was calibrated to determine the inundation necessary to inundate each plot, and this can be combined with daily flow data to determine the inundation duration or percentage of time a plot is under water. Occurrence of all plant species in these plots was determined in late July of 1990, 1994, 2001, 2006 and 2013. This data set includes 3 csv files of plot data. One file gives characteristics of plots, including plot name, inundating... Categories: Data; Tags: Aquatic Biology, Black Canyon of the Gunnison National Park, Colorado, Dam, Ecology, All tags... Gunnison River, Hydrology, Montrose, USGS Science Data Catalog (SDC), biota, ecological competition, environment, inlandWaters, streamflow, vegetation, wetland ecosystems, Fewer tags