Wildlife Biologist
Forest and Rangeland Ecosystem Science Center
Email:
christopher_pearl@usgs.gov
Office Phone:
541-750-1011
ORCID:
0000-0003-2943-7321
Location
Corvallis Research Group CFSL - IAA
3200 S.W. Jefferson Way
Corvallis
, OR
97331
US
Supervisor:
Michael J Adams
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This database contains literature citations and associated summaries pertaining to livestock grazing effects on amphibians and their habitats, with an emphasis on the Oregon spotted frog (Rana pretiosa) and other listed/sensitive wetland-breeding amphibians in the western United States. This is not meant to be an exhaustive list, nor did we perform a systematic meta-analysis; rather, literature records were included based on topical relevance. *HINT: If you are looking for the database SEARCH TOOL, scroll down to 'Attached Files' and download 'Annotated_bibliography_with_search_tool.accdb.' Open the database file to enter the search form.* This data release supersedes Rowe, J.C., Pearl, C.A., Adams, M.J., and McCreary,...
Categories: Data;
Tags: Aquatic Biology,
Ecology,
Land Use Change,
USGS Science Data Catalog (SDC),
Wildlife Biology, All tags...
abundance,
amphibians,
aquatic biology,
biota,
disturbance,
environment,
erosion,
estrogenicity,
exclosure,
fecal bacteria,
frogs,
grazing,
habitats,
inlandWaters,
land use,
livestock,
management,
native species,
nutrients,
occupancy,
pasture,
salamanders,
species richness,
toads,
trampling,
vegetation,
water quality,
weed invasion,
western United States,
worldwide, Fewer tags
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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.
Categories: Data;
Tags: Aquatic Biology,
Clackamas County,
Deschutes County,
Douglas County,
Ecology, All tags...
Hood River County,
Jackson County,
Jefferson County,
Klamath County,
Lane County,
Linn County,
Marion County,
Multnomah County,
Oregon,
USGS Science Data Catalog (SDC),
Wasco County,
Wildlife Biology,
aquatic biology,
biota,
environment,
habitats,
inlandWaters,
native species, Fewer tags
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The data included here were 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 U.S. 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...
Categories: Data;
Tags: E. Coli,
Klamath National Wildlife Refuge,
USGS Science Data Catalog (SDC),
biota,
environment, All tags...
estrogenicity,
inlandWaters,
nutrient content (water),
surface water quality,
total coliform,
wetland ecosystems, Fewer tags
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Comma-separated values (.csv) file containing data related to amphibian sampling across the United States between 2016 and 2021. Data files contain mercury concentrations in amphibian and dragonfly tissues, mercury concentrations in sediment, as well as amphibian morphometrics, and habitat and climate characteristics where the samples were collected.
Categories: Data;
Tags: Aquatic Biology,
California,
Colorado,
Connecticut,
Ecology, All tags...
Environmental Health,
Louisiana,
Maine,
Manitoba,
Massachusetts,
Montana,
Oregon,
Pennsylvania,
USGS Science Data Catalog (SDC),
Vermont,
Virginia,
Water Quality,
Wildlife Biology,
Wisconsin,
Wyoming,
biota,
environment,
inlandWaters,
mercury contamination, Fewer tags
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Forest harvest is one of the primary landscape-scale management actions affecting riparian forests of the Pacific Northwest, U.S, yet the effect of harvest on headwater steam amphibians is largely understudied. Existing information is often limited because of the difficulty separating movement and emigration processes from occupancy and abundance estimates. We designed a before-after control-impact experiment to account for instream movement in the responses of three unique headwater stream amphibians to clearcut logging as part of the Trask River Watershed Experimental Study in the Oregon Coast Range. We captured and marked larval tailed frogs (Ascaphus truei), Coastal giant salamanders (Dicamptodon tenebrosus),...
Categories: Data;
Tags: Aquatic Biology,
Ecology,
Forestry,
Geomorphology,
Hydrology, All tags...
Land Use Change,
Northern Oregon Coastal,
Oregon,
USGS Science Data Catalog (SDC),
Water Resources,
Wildlife Biology,
amphibians,
biogeography,
deforestation,
drainage basins,
environment,
farming,
inlandWaters,
wetland ecosystems, Fewer tags
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