Supervisory Research Ecologist
Email:
mjadams@usgs.gov
Office Phone:
541-750-0980
Fax:
541-758-7761
ORCID:
0000-0001-8844-042X
Location
3200 S.W. Jefferson Way
Corvallis
, OR
97331
US
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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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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.
Categories: Data;
Tags: Aquatic Biology,
Aquatic ecology,
Ecology,
Jack Creek,
Klamath County, All tags...
Native species,
Oregon,
Population dynamics,
USGS Science Data Catalog (SDC),
Wildlife Biology, 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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Amphibian populations are declining globally at unprecedented rates but statistically rigorous identification of mechanisms is lacking. Identification of reasons underlying large-scale declines is imperative to plan and implement effective conservation efforts. Most research on amphibian population decline has focused on local populations and local factors. However, the ubiquity of declines across species and landscapes suggests that causal factors at a broader scale are also important. Elucidation of the mechanisms driving population change has lagged, mainly because data have been unavailable at continental scales. We propose to address this need by assembling data to answer questions about broad-scale drivers...
Categories: Data,
Project;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: Active,
All Working Groups,
Amphibians,
Ecosystems,
Land Resources, All tags...
animals, Fewer tags
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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.
Categories: Data;
Tags: Ankeny National Wildlife Refuge,
Aquatic Biology,
Aquatic biology,
Baskett Slough National Wildlife Refuge,
Benton County, All tags...
Ecology,
Environmental Health,
Land Use Change,
Lane County,
Linn County,
Marion County,
Native species,
Oregon,
Pacific Northwest,
Polk County,
Population dynamics,
USGS Science Data Catalog (SDC),
Water Resources,
Wildlife Biology,
Willamette Valley,
William L Finley National Wildlife Refuge,
biota,
environment,
inlandWaters, Fewer tags
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