Research Zoologist
Email:
muthse@usgs.gov
Office Phone:
970-226-9474
Fax:
970-226-9230
ORCID:
0000-0002-5498-3132
Location
2150 Centre Avenue
Building C
Fort Collins
, CO
80526-8118
US
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We investigated population dynamics in chorus frogs (Pseudacris maculata) relative to extrinsic (air temperatures and snowpack) and intrinsic (density dependence) characteristics at 2 sites in Colorado, USA. We used capture-mark-recapture (cmr) data (i.e., 1 or 0, provided here) and a Bayesian model framework to assess our a priori hypotheses about interactions among covariates and chorus frog survival and population growth rates. Files include: Cameron_Lily_cmr_NOV2020.csv, Cameron_Matthews_cmr_NOV2020.csv, and Cameron_covariates_NOV2020.csv. Data associated with paper by Kissel et al. 2021.
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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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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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We used 29 years of data on boreal chorus frogs at two sites to view life-history, estimate demographic parameters, assess weather-related covariates, and determine the magnitude of process variation in target parameters. Average estimates of survival probabilities were 0.51 (Standard error [SE]=0.04) and 0.43 (SE=0.04), and average estimates of recruitment probabilities were 0.64 (SE=0.07) and 0.44 (SE=0.04). Process variation accounted for greater than 76% of the total temporal variation in both parameters at one pond and in survival probability alone at the other.
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These data represent capture mark recapture data along with associated disease status for boreal toads (Anaxyrus boreas) from Wyoming and Montana from 2004-2016 and four frog species (Rana draytonii, R. muscosa, R. pretiosa, R. sierrae) from 2001-2016.
Categories: Data;
Tags: Anaxyrus,
Batrachochytrium dendrobatidis,
California,
Montana,
Oregon, All tags...
Rana,
USGS Science Data Catalog (SDC),
Wildlife Disease,
Wyoming,
amphibians,
anuran,
chytridiomycosis,
mark-recapture studies,
survival,
wildlife diseases, Fewer tags
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