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Monitor stream amphibian population before and after experimental clearcut harvest to evaluate the impacts of current forest management practices on aquatic ecosystems.

Describe baseline amphibian diversity, gross external deformities, and the presence of pathogens relative to environmental conditions. Estimate baseline occupancy and detection probabilities when possible.

Describe presence, baseline occupancy, relative diversity, gross external deformities, and the presence of pathogens relative to environmental conditions.

Triennial monitoring of arroyo toads at the Remote Training Site Warner Springs.

The objective of this study was to assess anuran benefits of the Wetlands Reserve Program (WRP), where previously used agricultural land is converted to a wetland. These WRP sites are compared to sites still in agriculture and more natural forested sites.

To study the impacts of large scale wildfires on the arroyo toad in San Diego County.

To study the impacts of large scale wildfires on the arroyo toad in San Diego County.

To study the impacts of large scale wildfires on the arroyo toad in San Diego County.

To study the impacts of large scale wildfires on the arroyo toad in San Diego County.

The objective of this study was to assess anuran benefits of the Wetlands Reserve Program (WRP), where previously used agricultural land is converted to a wetland. These WRP sites are compared to sites still in agriculture and more natural forested sites.

We used anurans as an indicator to assess the conservation benefits of the Wetlands Reserve Program (WRP). WRP sites were compared to agricultural sites, which is prevalent throughout the Mississippi Delta. Anuran occupancy is suited as an indicator of the conservation benefits of the WRP because it is robust to variation in the observation process (i.e. imperfect detection) and provides a useful metric for comparison across sites.

The goal of this study is to monitor anuran occupancy using standard protocols while also recording salinities, as this area is below a saltwater barrier on the Neches River and is susceptible to saltwater encroachment during tropical storm surges or periods of drought, which may impact anuran occupancy. We also added 20 sites north of the saltwater barrier as reference sites in 2012.

The goals of this study are to 1.) estimate the number of adults of each species using the pond, 2.) determine the reproductive effort of adults (number of egg masses), 3.) estimate the density of larvae and predators in the pond, and 4.) examine the yearly variability in phenology of breeding among species.

Work with partners and collaborators across North America to describe baseline occupancy, diversity, and relative abundance and monitor and describe any changes in populations relative to changes in climate, land cover/use, human activities, hydrology, and disease using standard methods. Note: Research locations at the TNWR, SCNSR, NTLLTER, and UMR also are research nodes in the TWGCRN.

Describe baseline occupancy, diversity, and relative abundance. Monitor and describe any changes in populations relative to changes in climate, land cover/use, human activities, hydrology, and disease.

Describe baseline occupancy, diversity, and relative abundance. Monitor and describe any changes in populations relative to changes in climate, land cover/use, human activities, hydrology, and disease.

Describe baseline occupancy, diversity, and relative abundance. Monitor and describe any changes in populations relative to changes in climate, land cover/use, human activities, hydrology, and disease.

Describe baseline occupancy, diversity, and relative abundance. Monitor and describe any changes in populations relative to changes in climate, land cover/use, human activities, hydrology, and disease.

Produce an assessment of the environmental benefits of conservation efforts on agricultural lands in Iowa (in partnership with the Natural Resources Conservation Service).

determine whether the integrity and status of amphibian populations are changing over time