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51 record(s) found.

Data Release Cascades frog (Rana cascadae) historical site surveys in the Oregon Cascade Range, 2018-2019
Authors: Michael J Adams; Chris A Pearl; B McCreary; Jennifer C Rowe
Date: 2019-10-11 | Outlet: Science Base
We used visual surveys to document the presence of all life stages of Cascades frog (Rana cascadae) at historically occupied sites. We surveyed 67 sites 1-2 times between May and August of 2018 and 2019. This effort was a continuation of 2001-2004 surveys conducted at the same site pool. This dataset includes counts of amphibians, reptiles, and fish observed during each site survey, as well as habitat covariates.
Data Release Foothill yellow-legged frog (Rana boylii) surveys in Oregon 2019
Authors: Michael J Adams; Chris A Pearl; Jennifer C Rowe; B McCreary; M Laramie; David S Pilliod
Date: 2019-11-01 | Outlet: Science Base
We used visual surveys and environmental DNA (eDNA) sampling to document the presence of all life stages of foothill yellow-legged frogs (Rana boylii) at historically occupied sites. We visited 52 stream reaches (sites) on federal and private lands between June and September of 2019. This dataset includes counts of amphibians, crayfish, and fish observed during each site survey, as well as habitat and water sampling covariates.
Data Release Oregon spotted frog (Rana pretiosa) telemetry and habitat use at Klamath Marsh National Wildlife Refuge in Oregon, USA
Authors: Chris A Pearl; Jennifer C Rowe; B McCreary; Michael J Adams
Date: 2019-12-13 | Outlet: Science Base
We used radio-telemetry to study late-season movement and habitat use by Oregon spotted frogs (Rana pretiosa) at Klamath Marsh National Wildlife Refuge in Oregon. This data release includes frog location and habitat use data, as well as visualizations of telemetry data. Tracking events occurred roughly weekly between August and December of 2017.
Data Release Nutrients, estrogenicity, and fecal indicators in surface water collected from wetlands in the Klamath Marsh National Wildlife Refuge, Oregon, 2017-2018
Authors: Jennifer C Rowe; K L Smalling; Chris A Pearl; C E Givens; A J Sperry; Michael J Adams
Date: 2019-12-13 | Outlet: Science Base
The data was gathered to determine the effects of cattle grazing on wetland water quality in the Klamath National Wildlife Refuge in Oregon. Surface water samples from sites representing a range of grazing histories were collected between June and October in 2017 and 2018. Samples were analyzed for nutrients (ammonia, nitrate plus nitrite, nitrite and orthophosphate), total coliforms, E. coli, enterococci and estrogenicity by US Geological Survey laboratories. Basic water quality parameters such as temperature, pH, turbidity and specific conductance were also collected in the field during each site visit. Quality assurance samples (blanks and replicates) as well as method information is also included in the data release.
Data Release Telemetry and habitat data for Oregon spotted frogs (Rana pretiosa) in Oregon, USA
Authors: Chris A Pearl; B McCreary; Jennifer C Rowe; Michael J Adams
Date: 2018-09-27 | Outlet: Science Base
We used radio-telemetry to study late-season movement and habitat use by the Oregon spotted frog (Rana pretiosa) at 9 sites from 4 populations along the Cascade Mountains in Oregon. This dataset includes individual frog morphometrics, location data, and habitat use during each tracking event that occurred roughly weekly between September and January of 2011, 2012, and 2016.
Data Release Long-term amphibian monitoring data from the Willamette Valley, Oregon (2004-2015): U.S. Geological Survey data release
Authors: Michael J Adams; Chris A Pearl; B McCreary; S Galvan; Jennifer C Rowe; Adam Duarte; James T Peterson
Date: 2019-03-28 | Outlet: ScienceBase
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.
Data Release Oregon spotted frog (Rana pretiosa) observations in Oregon, 2016-2019: U.S. Geological Survey data release
Authors: Michael J Adams; Chris A Pearl; B McCreary; Jennifer C Rowe
Date: 2020-03-05 | Outlet: ScienceBase
This dataset contains information from surveys conducted 2016-2018 by USGS as part of an ongoing Oregon spotted frog (Rana pretiosa) monitoring effort in Oregon. USGS research activities in 2016, 2017, and 2018 were divided into six study design categories: breeding (egg mass counts), mid-level (visual encounter surveys for occupancy monitoring), apex (mark-recapture), telemetry, trapping, and water quality (skin microbiome swabbing). Data consist of Oregon spotted frog observations aggregated by date, location, life stage, sex, and project. These data were compiled from multiple studies employing different survey methods, thus we caution users that counts are not directly comparable among projects.
Data Release Oregon Spotted Frog (Rana pretiosa) Monitoring at Jack Creek 2015-2018 (final): U.S. Geological Survey data release
Authors: Michael J Adams; Chris A Pearl; B McCreary; S Galvan; Jennifer C Rowe
Date: 2019-02-11 | Outlet: ScienceBase
This dataset contains information from mark-recapture and egg mass surveys conducted 2015-2018 by USGS as part of an ongoing Oregon spotted frog (Rana pretiosa) monitoring effort at Jack Creek, Klamath County, Oregon. Data consist of spotted frog counts (handled by surveyors) aggregated by date, location, life stage, and sex, as well as data on environmental conditions at the time each survey. Note that due to updates in access permissions, surveyed area within each site varies over time. Thus, counts are not comparable among year, as surveyed area was not held constant.
Data Release Terrestrial salamander captures after the 2003 Clark Fire, Willamette National Forest, OR: U.S. Geological Survey data release
Authors: N D Chelgren; Michael J Adams; B McCreary; Chris A Pearl; Jennifer C Rowe
Date: 2019-05-21 | Outlet: ScienceBase
Data are the result of fixed-area, time-constrained searches for terrestrial salamanders within and nearby a wildfire-affected area of the Willamette National Forest, OR. The spatial extent of the study was within one kilometer of the border of the Clark fire that burned an area of 2,009 ha in 2003. Site surveys occurred during March and April, 2005. An important feature of the data is that 100m2 sub-plots (nested within plots) were repeatedly searched for terrestrial salamanders independently up to nine times so that variation in the probability of capture could be estimated and accounted for concurrent with estimates of occupancy probability.
Data Release Columbia Spotted Frog (Rana luteiventris) Breeding at Grazing Exclosures in Eastern Oregon 2002-2010 and 2013: U.S. Geological Survey data release
Authors: Michael J Adams; Chris A Pearl; B McCreary; S Galvan; Jennifer C Rowe
Date: 2018-02-01 | Outlet: ScienceBase
We studied the short-term effects of full and partial livestock grazing exclosures on Columbia Spotted Frog (CSF; Rana luteiventris) populations using a controlled manipulative field experiment with pre- and post-treatment data. This dataset includes vegetation data collected 2002-2010 and 2013 at 94 lakes and ponds in and around the Blue Mountains in eastern Oregon. Data collection followed standardized survey protocols and included annual oviposition surveys and vegetation surveys. These data allowed for quantification of CSF breeding as related to vegetation within and outside of grazing exclosures at each site.
Data Release Oregon Spotted Frog (Rana pretiosa) Monitoring in the Oregon Cascades 2012-2016: U.S. Geological Survey Data Release
Authors: Michael J Adams; Chris A Pearl; B McCreary; S Galvan; Jennifer C Rowe
Date: 2017-02-01 | Outlet: ScienceBase
This dataset contains information from visual encounter surveys conducted between 2012 and 2016 by USGS as part of an ongoing Oregon spotted frog (Rana pretiosa) monitoring effort in the Oregon Cascade Mountain Range. We surveyed 91 sites using a rotating frame design in the Klamath and Deschutes Basins, Oregon, which encompass most of the species' core extant range. Data consist of spotted frog counts aggregated by date, location, and life stage, as well as data on environmental conditions at the time of each survey.