Amphibian survey in streams within North Cascades National Park tabular data, 1996-2004. To obtain baseline data on the abundance and distribution of stream obligate amphibian species in the North Cascades National Park Service Complex, particularly Ascaphus truei and Dicamptodon tenebrosus. To evaluate the environmental factors affecting the distribution of stream amphibians. These objectives will assist in the development of long-term monitoring protocols for stream amphibians We sampled 168 stream segments from nine watersheds in North Cascades National Park Service Complex during two inventory efforts conducted from 1996-1998 and 2003-2004. Surveys entailed stream habitat characterizations such as stream channel and flow measurements, vegetation and canopy cover measurements, and stream substrate classification. as well as sampling for stream amphibians. When found, amphibians were photographed, classed into age/lifestage categories and a variety of body size measurements were taken. No voucher specimens were collected.

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

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.

Amphibian survey tabular data for Fort Vancouver National Historical Reserve, 2002-2003. Our primary goal for FOVA 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. At the request of the FOVA Superintendent, the inventory was expanded to include the Reserve and three additional species expected to occur within the Reserve: northwestern salamander, long-toed salamander, and rough-skinned newt. Reptiles were not targeted during this project but were documented when encountered. Thirteen surveys were conducted within the Reserve. Three of 10 species (Ensatina, Pacific treefrog, and long-toed salamander) expected to inhabit the Reserve were observed but no amphibians or reptiles were found within FOVA. The common garter snake was also documented in the Reserve. Species absence is extremely difficult to determine; 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 Fort Vancouver National Historic Site (FOVA) and the greater Vancouver National Historic Reserve was part of a larger effort to document species presence at five North Coast and Cascades Network parks: Mount Rainier National Park, Ebey’s Landing National Historical Reserve (EBLA), Lewis and Clark National Historical Site (LEWI, formerly FOCL), FOVA, and San Juan Island National Historical Park (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, FOVA had no verified list of amphibians and reptiles occurring in the park. Additional searches of museum specimens and state records have not been completed.

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.

The Cascades frog (Rana cascadae) is one of two frog species known to occur historically in Lassen Volcanic National Park (LAVO) in Northern California. However, no Cascades frogs have been documented in LAVO for several decades, despite repeated surveys. Threats to the species include natural predators, introduction of fish into historically fishless habitats, diseases like fungal pathogens, airborne drift of pesticides from nearby agricultural areas, ultraviolet (UV-B) radiation, wildfires, and habitat loss from human development and climate change. Objectives of this project were to conduct surveys for Cascades frogs at LAVO using both visual encounter surveys (VES) and environmental DNA (eDNA) surveys at locations with potential for reintroduction, conduct VES and eDNA surveys for potential predators (rainbow trout, brook trout, brown trout, and leeches) to determine locations unsuitable for reintroduction, and to develop a suitability model to assess reintroduction potential within LAVO for Cascades frogs. Fifty locations around LAVO were sampled during this study. Suitability for Cascades frogs was ranked according to suitable vegetation availability, elevation, climatic factors, and perennial water availability. Projected climate data was used to derive future climate suitability for Cascades frogs within and around LAVO. No Cascades frog egg masses, larvae, or adults were detected during VES or eDNA sampling within LAVO in 2021. Pacific tree frogs were observed at 18 sites, indicating suitable larval frog habitat at these sites. At 12 of these 18 sites, trout were not detected with either VES or eDNA sampling and leeches were only detected in two locations. The eDNA survey did not appear to be an effective way to detect leeches, but this method was effective for trout species and Cascades frogs.

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.

Amphibian survey for Ebey's Landing National Historical Reserve, 2002-2003 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. Our primary goal for EBLA was to search for the presence of expected amphibian species: Ensatina; western red-backed salamander; northern red-legged frog; Oregon spotted frog; American bullfrog; Pacific treefrog; western toad; northwestern salamander; long-toed salamander; and rough-skinned newt. Inventories of reptiles were not targeted during this project; however they were documented when encountered. Nineteen aquatic and 15 terrestrial surveys were conducted in 2002 and 2003. A total area of 75,286 m2 was searched in 4,013 minutes, over 14 days. During the surveys, for each species encountered, information on species life stage and habitat, was documented. Species names have been verified and updated as needed based on Crother (2008). 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 Fort Vancouver National Historic Site (FOVA) and the greater Vancouver National Historic Reserve was part of a larger effort to document species presence at five North Coast and Cascades Network parks: Mount Rainier National Park, Ebey’s Landing National Historical Reserve (EBLA), Lewis and Clark National Historical Site (LEWI, formerly FOCL), FOVA, and San Juan Island National Historical Park (SAJH). Four parks (EBLA, FOCL, FOVA, and SAJH) had incomplete amphibian lists based on limited or undocumented data.