This dataset contains data from visual encounter and acoustic surveys in Big Thicket National Preserve in Texas from August 2010 to September 2018. This dataset also includes salinity measurements from nine salinity loggers deployed in the study area.

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.

These datasets include occurrence points and trait data for freshwater fishes, amphibians, and reptiles native to Oregon State. Occurrence data were extracted from the VertNet database and include points within Oregon, Washington, and Idaho, as well as points found within ecoregions that overlap with Oregon state (U.S. EPA Level III EcoRegions). Occurrence points include records from years 1930-2002, and only records with associated museum voucher specimens were included. Database was updated to include one record per species, per year, at a given location. Records were evaluated by taxonomic experts for each species, and suspicious records were either verified or excluded. Trait data were gathered from published and openly available sources. Each column (trait value) for each taxon is described in detail in the datasets, including procedures for replacements of missing values.

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

This database contains data collected from 3/2004 to 6/2005 at Assateague Island National Seashore for an inventory of amphibians (frogs and salamanders) and reptiles (turtles, lizards and snakes). Survey methods included visual encounter surveys, audio surveys, road surveys, dipnets, minnow traps and turtle traps.

This data release contains information collected during surveys for chorus fogs (Pseudacris maculata), wood frogs (Lithobates sylvaticus) and tiger salamanders (Ambystoma mavortium ) conducted in Rocky Mountain National Park (1986 – 2022) by the U.S. Geological Survey. Survey methods included visual encounter and aural surveys, and dip netting. Data collected between 1986 and 1994 focused on named water bodies in Rocky Mountain National Park. Data collected between 1995 and 1999 are from focal monitoring sites as well as sporadic surveys of other wetlands. Data collected between 2000-2002 represent repeated surveys conducted between 1986 and 1994 (e.g., park-wide surveys of named water bodies) and additional surveys of unnamed waterbodies. Data collected after 2002 were collected under an occupancy framework. Sites were identified within pre-defined catchments using the National Wetlands Inventory Database to locate potential amphibian breeding habitat (e.g., ponds, ephemeral wetlands). If appropriate sites were encountered in the field and were not indicated on National Wetland Inventory databases (https://www.fws.gov/program/national-wetlands-inventory/metadata), they were added as incidental sites. Waterbodies were visited and surveyed at least two times during the amphibian active season (May and mid-August). Water bodies were surveyed for all life stages of amphibians.

Under a National Park Service/Wildlife Conservation Society Cooperative Agreement, an inventory of amphibians and reptiles at Acadia National Park (ACAD) in Maine was conducted from March through September 2001. Seven standardized sampling methods were employed; anuran call counts, egg-mass counts, time-constrained search, coverboards, turtle trapping, minnow trapping, and drift fence arrays. In addition, animals encountered outside of standardized surveys (temporally or spatially) were recorded as incidental encounters. Eighteen species were documented including six frog/toad, five salamander, two turtle, and five snake species. These species represent 82% of the species believed to have occurred historically in the park.

An inventory of amphibians and reptiles was conducted at Death Valley National Park (DEVA) in 2002- 2004 as part of the National Park Service Inventory and Monitoring Program in the Mojave Desert Network. Objectives for this inventory were to: 1) Inventory and document the occurrence of reptile and amphibian species occurring at DEVA, primarily within priority sampling areas, with the goal of documenting at least 90% of the species present; 2) document (through collection or museum specimen and literature review) one voucher specimen for each species identified; 3) provide a GIS-referenced list of sensitive species that are federally or state listed, rare, or worthy of special consideration that occur within priority sampling locations; 4) describe park-wide distribution of federally- or state-listed, rare, or special concern species; 5) enter all species data into the National Park Service NPSpecies database; and 6) provide all deliverables as outlined in the Mojave Inventory and Monitoring Network Biological Inventory Study Plan. Methods included daytime and nighttime visual encounter surveys, road driving, and pitfall trapping. Survey effort was concentrated in predetermined priority sampling areas, as well as in areas with a high potential for detecting undocumented species. 37 species were recorded during surveys, including two species new to the park. During literature review and museum specimen database searches, study authors recorded three additional species from DEVA, elevating the documented species list to 40 (four amphibians and 36 reptiles). Based on these surveys, as well as literature and museum specimen review, this study estimates an overall inventory completeness of 92% for Death Valley and an inventory completeness of 73% for amphibians and 95% for reptiles.

From 2002-2006, we used a variety of sampling techniques to survey the amphibians and water chemistry of Lower Suwannee National Wildlife Refuge in Florida’s Big Bend region. We recorded 23 amphibian species, 19 frogs and 4 salamanders. Species richness was lower than in areas of the coastal Big Bend region to the north. Amphibians occupied a wide variety of habitats and appeared tolerant of the generally acidic conditions of many of the wetlands. Although additional species may yet be found in LSNWR, this survey provides a historic baseline for assessing future status and trends of amphibian populations.

Amphibian survey tabular data for San Juan Island National Historical Park 2002. Fourteen surveys were conducted at American Camp and 15 surveys at English Camp. We confirmed the presence of two species in SAJH in this inventory: northern red-legged frog and Pacific treefrog. Amphibian habitat is sparse on San Juan Island and within SAJH, one of the driest parks in the NCCN, with only one permanent pond located at American Camp and no perennial streams. This inventory was conducted during April 2002 and when surveys were initiated, many areas were already too dry to support amphibians. Species absence is extremely difficult to determine and it is possible that some species recorded historically or occasionally but not detected during our survey efforts may still be present in the park. Additional surveys of targeted habitats and species should be conducted. This project at San Juan Island National Historical Park (SAJH) was part of a larger effort to document species presence at five North Coast and Cascades Network (NCCN) parks: Mount Rainier National Park, Ebey’s Landing National Historical Reserve, Lewis and Clark National Historical Site, Fort Vancouver National Historic Site, and SAJH. Four parks (EBLA, FOCL, FOVA, and SAJH) had incomplete amphibian lists based on limited or undocumented data. Our primary goal was to meet the National Park Service Inventory and Monitoring program goal to better assess the status of amphibian species listed as “expected” in the parks and to verify the occurrence of 90% of these species. Species occurrences were documented or verified by written records and photographs; no specimens were collected in this inventory. Prior to this inventory, SAJH had no verified list of amphibians or reptiles occurring in the park, however a wetland study conducted by Holmes (1998) documented incidental observations of two frog species. Additional searches of museum specimens and state records have not been completed.Our primary goal for SAJH was to search for the presence of expected species: Ensatina, western red-backed salamander, northern red-legged frog, Oregon spotted frog, American bullfrog, Pacific treefrog, and western toad. Inventories of reptiles were not targeted during this project; however they were documented when encountered.One voucher photograph was taken for the northern red-legged frog observation. Voucher specimens for amphibians and reptiles exist for many NCCN species in various park collections and at other institutions. These collections, along with new data provided through this inventory, represent an historic amphibian collection for additional research in the future.