Data

This dataset provides tables with demographic information for permanent plots across old Sequoia sempervirens forests in Redwood national and state parks.

These data support a long term demography study examining the occupancy, abundance, growth, capture, and survival of giant gartersnakes (Thamnophis gigas). We captured giant gartersnakes inhabiting rice irrigation canals, tidal sloughs and freshwater marshs in the Central Valley, California, USA. Data also include giant gartersnake morphometric data, trapline characteristics...

Limestone salamanders (Hydromantes brunus) are cryptic terrestrial salamanders about which little is known, including their distribution. Because the salamanders are difficult to detect, survey protocols that estimate detection probabilities are needed to interpret the meaning of negative (non-detection) surveys and better understand the distribution of the salamanders. This study...

This dataset includes measurements of biological and physical attributes of five restored tidal wetlands in the San Francisco Bay Estuary. All marshes were restored in the last 30 years, from the late 1990's to the early 2010's, and are located between San Pablo Bay in the north to the South Bay Salt Ponds in the south. Biological attributes measured include plant species presence...

This dataset provides tables with photointerpretation of delayed mortality and associated predictors in Sentinel-2 pixels across conifer forests in Whiskeytown National Recreation Area.

These data were collected as part of the USGS Sierra Nevada Forest Dynamics Study. They include tree diameter and mortality data as well as tree species identification and plot measurements from 8 plots located in Sequoia National Park from 1984 to 2023.

The single database, assembled retrospectively between 2004 and 2007, which includes the following information: site name, desert region, distance (km) to the nearest settlement from the tortoise, unique identification number for the tortoise, sex, wear or aging class of the carapace, size of the tortoise, evidence of trauma to the gular horn and to shell and limbs, year collected, and...

These data contain field and analytical data used to evaluate the effects of applying non‑toxic oil to common raven (Corvus corax) eggs on both raven reproductive success and demographic responses of co‑occurring greater sage-grouse (Centrocercus urophasianus) populations across sagebrush ecosystems in Nevada and California. Data include: (1) Raven nest monitoring data (nest locations...

This data release includes genotype data for 131 Brodiaea filifolia and 35 Brodiaea santarosae collected throughout Riverside, Orange, and Los Angeles counties in southern California in 2025. The samples were sequenced with restriction site-associated sequencing (RAD-seq) and genotyped at 166,974 single nucleotide polymorphisms (SNPs). Short sequence reads generated for this project are...

These data describe tracking information and provide location data of American avocets (from 2023-03-18 to 2024-12-31) and Wilson’s phalaropes (from 2023-08-17 to 2023-11-10) collected in support of the U.S. Geological Survey Saline Lakes Ecosystems Integrated Water Availability Assessment Program (USGS SLE IWAA). The data are provided using standardized formats and an attribute...

We conducted a multi-year study (2016-2019) to identify elements of wetland habitat management that could potentially benefit breeding ducks. Specifically, we examined the influence of habitat variables in explaining habitat selection of managed wetlands near upland nesting sites by radio-tagged Mallard (Anas platyrhynchos) and Gadwall (Mareca strepera) ducklings in a brackish marsh...

These data were collected as part of the USGS Sierra Nevada Forest Dynamics Study. They include tree mortality data from 30 plots located along an elevational gradient in the Sierra Nevada of California from 1982 to 2019. Although the data were collected annually, for purposes of compatibility with a global analysis, they were abstracted to five-year census intervals.