Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Capture histories and body size data for a population of mangrove diamond-backed terrapins (Malaclemys terrapin rhizophorarum) Everglades National Park, Florida, USA, 2001-2019 Capture histories and body size data for a population of mangrove diamond-backed terrapins (Malaclemys terrapin rhizophorarum) Everglades National Park, Florida, USA, 2001-2019
We used an 18-year dataset (2001 to 2019) incorporating year, sex, hurricane occurrence and sampling effort to estimate survival using Cormack–Jolly–Seber (CJS) models in Program Mark. Annual survivorship estimates were high from 2001-2003 for both sexes (91-96%) and variable from 2006-2014 (77-92%). Beginning in 2015 survival estimates exhibited a steeper decline (females: 65%, males 75...
Geomorphic Mapping of Fern Ridge Lake, Oregon, 2023 Geomorphic Mapping of Fern Ridge Lake, Oregon, 2023
In cooperation with the U.S. Army Corps of Engineers, the U.S. Geological Survey evaluated geomorphic conditions within Fern Ridge Lake near Eugene, Oregon, to inform cultural resources management and other natural resources decisions. Reservoir erosion and deposition during seasonal flood-control operations have formed a diverse array of landforms that can impact water storage, aquatic...
Water Quality Concentrations and Discharge in the Lower Boise River and Select Tributaries, Southwestern Idaho, Water Years 1994-2023 Water Quality Concentrations and Discharge in the Lower Boise River and Select Tributaries, Southwestern Idaho, Water Years 1994-2023
This dataset describes (a) concentrations of nutrients and related constituents, and (b) discharge in the lower Boise River (Idaho) and its primary tributaries for Water Years 1994 through 2023 and 1969 through 2024, respectively. Constituents include water column concentrations of suspended sediment, total phosphorus, dissolved phosphorus, orthophosphate as phosphorus, total nitrogen...
Vegetation cover and standard fire behavior fuel model information collected for two national parks in southern Idaho during the summer of 2023 Vegetation cover and standard fire behavior fuel model information collected for two national parks in southern Idaho during the summer of 2023
Data set includes field observed cover of several vegetation functional groups, e.g. annual herbaceous, perennial herbaceous, exotic annual grasses, perennial bunch grasses, shrubs, sagebrush shrubs, non-sagebrush shrubs, bare mineral soil, rocks, and litter. Additionally, if tree canopy was present within field plots, tree canopy cover was estimated, forest type recorded, and the number...
Ecosystem Metabolism Data for Brownlee Reservoir, Snake River, Idaho/Oregon, 2017-2023 Ecosystem Metabolism Data for Brownlee Reservoir, Snake River, Idaho/Oregon, 2017-2023
This data release presents multi-year ecosystem metabolism model outputs for Brownlee Reservoir at varying depths across three locations (River Miles 318, 300, and 286) along the Snake River. Data include field-collected model input data and model outputs of daily gross primary production (GPP), ecosystem respiration (R), and net ecosystem production (NEP). Field data were collected from...
Data on factors affecting reproductive success of feral horse males from Conger and Frisco Herd Management Areas, UT, USA, between 2017 and 2020 Data on factors affecting reproductive success of feral horse males from Conger and Frisco Herd Management Areas, UT, USA, between 2017 and 2020
We investigated male reproductive success of feral horses (Equus caballus) at Conger and Frisco Herd Management Areas (HMAs) in Utah, USA between 2017 and 2020. We collected data on male social status (harem stallion, lieutenant, tag, bachelor or in natal group) and group type (single male or multi-male) at both sites, and at Conger we additionally examined social interactions among...