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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.

Filter Total Items: 12896

Hawaiian hoary bat population genetics 1988 to 2020

Genetic diversity levels, effective population size estimates, and population structure of the endangered Hawaiian hoary bat (Lasiurus semotus, also known as Aeorestes semotus) were examined across the islands of Hawai‘i, Maui, O‘ahu, and Kaua‘i using eighteen nuclear microsatellite loci and one mitochondrial gene from 339 individuals collected between 1988 and 2020. The study extracted DNA for po

Dataset Establishing Temporal Duration of Two Shield Volcanoes in Northern California

This dataset contains paleomagnetic data from 30 sites at two locations in northern California (16 sites at Ash Creek Butte and 14 sites at Crater Mountain), magnetic susceptibility-temperature curves for selected samples at Ash Creek Butte, and geochemical data for map units at Crater Mountain.

Movement and tag evaluation of two prairie fishes in Oklahoma, USA, October-June (2018-2020)

The first portion of this dataset provides the survival, retention, and growth of Emerald Shiner Notropis atherinoides (EMS) tagged with passive integrated transponder (PIT) tags and Arkansas River Shiner Notropis girardi (ARS) tagged with visible implant elastomer (VIE), PIT, and micro transponder p-Chip tags. Experiments were undertaken in the laboratory at Oklahoma State University, Stillwater,

Isotopic Data for Fishes in Wyoming, USA

Trophic studies can provide valuable information on the risk an invader poses to native species. Brook Stickleback Culaea inconstans is an invasive fish species in Wyoming whose effect on native fish assemblages is poorly understood. Our goal was to understand the potential for competitive interactions between Brook Stickleback and native fishes. We used stable isotopes of carbon (ẟ13C) and nitrog

Sample locations 2022 SARS-CoV-2 testing in little brown bats

The potential introduction of SARS-CoV-2, the virus responsible for the COVID-19 pandemic, into North American bat populations is of interest to wildlife managers due to recent declines of several species. Populations of little brown bats (Myotis lucifugus) have collapsed due to white-nose syndrome (WNS), a disease caused by the introduction and spread of the fungal pathogen Pseudogymnoascus destr

Digital data for the Salinas Valley Geological Framework, California

This digital dataset was created as part of a U.S. Geological Survey study, done in cooperation with the Monterey County Water Resource Agency, to conduct a hydrologic resource assessment and develop an integrated numerical hydrologic model of the hydrologic system of Salinas Valley, CA. As part of this larger study, the USGS developed this digital dataset of geologic data and three-dimensional hy

Kaloko-Honokohau National Historical Park Orangeblack Hawaiian damselfly data, 2016-2017

This data release includes metadata and tabular data that documents the endangered orangeblack Hawaiian damselfly (Megalagrion xanthomelas) at Kaloko-Honokohau National Historical Park during 2016-2017. Data sets document (1) numbers of damselflies observed during surveys, (2) habitat characteristics of anchialine pools at which damselflies were surveyed, (3) substrates on which female damselflies

Samoan swallowtail butterfly reproductive response to host plant characteristics, 2013-2014 (ver. 2.0, July 2024)

Surveys for immature life stages of the Samoan swallowtail butterfly (Papilio godeffroyi) were conducted on 117 individually marked host trees (Micromelum minutum) in eight forest stands on Tutuila Island, American Samoa, at approximately monthly intervals during 2013-2014. The eight stands were mostly in or adjacent to the National Park of American Samoa (NPSA), but one stand was sampled near the

Real-time quaking-induced conversion assay data for membrane-fed ticks and wild-fed tick and deer tissues from hunter harvested white-tailed deer from Wisconsin, 2021

Real-time quaking induced conversion assay data from artificial membrane feeding assays of ticks and of engorged tick, ear tissue and lymph node samples from hunter harvested white-tailed deer heads from Wisconsin that were harvested during the 2021 hunting season.

Input for assessing the impact of noisy data on earthquake magnitude estimates derived from peak ground displacement measured with real-time Global Navigation Satellite System data

This data release complements Murray et al. (2023) which presents a framework for incorporating earthquake magnitude estimates based on real-time Global Navigation Satellite System (GNSS) data into the ShakeAlert® earthquake early warning system for the west coast of the United States. Murray et al. (2023) assess the impact of time-dependent noise in GNSS real-time position estimates on the reliab

Daily Nooksack River Basin Nutrient Loading Estimates from 2018 to 2021

The Nooksack River watershed comprises the majority of the Water Resources Inventory Area 1 (WRIA 1) located in Whatcom County in Washington State. From its headwaters in the northwestern Cascade Mountains, the Nooksack River drains approximately 809 square miles, comprising most of western Whatcom County, including agricultural areas and the developed lowlands surrounding the towns of Deming, Eve

Rain measurements in the Dolan Fire Area, Los Padres National Forest, California, 2021 to 2022

Rainfall measurements were collected in and near the Dolan Fire burn area, Los Padres National Forest, California. The Dolan Fire ignited on August 18, 2020. By the time of full containment on December 31, 2020, the fire had burned 518 km2 (128,050 acres) in Monterey County. Post-fire debris flows occurred in many watersheds burned by the Dolan Fire during the first post-fire wet season, in winter