This data set is comprised of four files related to the counts of amphibian species in the National Capital Region of the United States. Data was obtained from surveys of both lentic (wetland) and lotic (stream) sites within national parks.

This is the amphibian monitoring dataset collected by the National Capital Region Network (NCRN) Inventory and Monitoring Program through 2024.

Geodatabase of streams, wetlands, and amphibian observation points in National Capitol Region parks.

Geodatabase of streams, wetlands, and amphibian observation points in National Capitol Region parks.

The North American Amphibian Monitoring Program (NAAMP) was a collaborative citizen science effort between the US Geological Survey (USGS) and 26 Partners (state agencies, universities, and nonprofits) for monitoring calling amphibian populations over much of the eastern and central United States. Initiated in 1997 in response to needs set forth by the Declining Amphibian Populations Task Force in 1994 regarding increased anecdotal observations of global amphibian declines, NAAMP was designed to provide scientifically and statistically defensible, long-term distribution and trends data for calling amphibian populations at the state and regional level in the United States. The USGS discontinued coordination of the program at the conclusion of the 2015 field season. Modeled after the USGS Breeding Bird Survey, NAAMP used a network of random and state-requested non-random roadside routes with listening stops near wetlands to collect frog and toad occupancy and environmental data in predominantly unprotected lands. Data collection and verification under a unified protocol began in 2001 and continued through 2015 with the addition of observer assessment scores in 2006. The USGS utilized verified 2001-2015 data from random routes to produce occupancy trend reports for anuran species of the Northeast, Southeast, and Midwest regions and states of the United States. This dataset includes all raw, verified NAAMP data from 1997 through 2015 and also raw, verified data from Partner States that precede the program (1994-1996). Data preceding 2001 followed variations of the unified protocol. Please refer to metadata for additional information regarding protocol and a list of the represented states and see the Species.csv file for the list of 58 represented species.

This dataset contains information from surveys conducted 2004-2015 by USGS as part of a long-term amphibian monitoring effort in the Willamette Valley, Oregon. Data consist of site, survey, habitat, and species detection covariates.

PI collected water quality samples from amphibian breeding sites at Gourley Pond, Finley Cane Sinks, the Sinks, and Gum Swamp to assist an amphibian monitoring initiative (GRSM-00105). The geological and cultural features and histories associated with each site are also described. April samples show that the waters have low pH (3.9-6.2), low specific conductance, and variable dissolved oxygen concentrations. Aluminum and iron levels were somewhat elevated, except at Gourley Pond, which gets much of its water from stream overflow. Only traces of mercury were present in the water samples. August samples were taken from the only two ponds with water at that time (Finley Cane #2 and the Sinks) but the results of their analysis is missing from the annual report.

PI collected water quality samples from amphibian breeding sites at Gourley Pond, Finley Cane Sinks, the Sinks, and Gum Swamp to assist an amphibian monitoring initiative (GRSM-00105). The geological and cultural features and histories associated with each site are also described. April samples show that the waters have low pH (3.9-6.2), low specific conductance, and variable dissolved oxygen concentrations. Aluminum and iron levels were somewhat elevated, except at Gourley Pond, which gets much of its water from stream overflow. Only traces of mercury were present in the water samples. August samples were taken from the only two ponds with water at that time (Finley Cane #2 and the Sinks) but the results of their analysis is missing from the annual report.

This data set is an amalgamation of twenty-nine original data sets, which represent amphibian surveys in the seven national parks comprising the North Coast and Cascades Network (NCCN) of the National Park Service. The data were collected from 1984-2005, and include the localities of 19 species of amphibians at various life stages, 18 native to the Pacific Northwest and one invasive species.

These data represent occupancy surveys conducted in long-term monitoring sites in Yosemite National Park in 2018 for three anurans, the Yosemite Toad (Anaxyrus canorus), the Sierran Treefrog (Pseudacris sierra), and the Sierra Nevada Yellow-legged Frog (Rana sierrae). The data include independent double-observer surveys and time-to-detection data to calculate detection probabilities and account for false negatives, or the failure to detect a species at a site where it occurs.