The USGS Alaska Science Center Ecosystems Analytics program is a group of quantitative biologists and research statisticians who provide analytical support to USGS scientists to answer challenging ecological topics and management questions for USGS partners.
Emily L Weiser, Ph.D.
Emily Weiser is a Wildlife Biologist providing quantitative support to projects at the Alaska Science Center.
Previously, Emily provided statistical support to the Monarch Conservation Science Partnership to develop a continental-scale sampling strategy for monarch butterflies and the resources that sustain them, collaborated with a large network of researchers to conduct demographic analyses for shorebirds in the Arctic, worked closely with conservation managers to improve genetic and demographic viability of forest birds in New Zealand, and worked with partners on Alaska's North Slope to assess the effects of human activity on Glaucous Gulls and their prey.
Science and Products
Ecosystems Analytics
Ecosystems Analytics is a group of quantitative biologists and research statisticians with a diverse range of expertise and experience (summarized below). We collaborate with internal and external partners to answer challenging ecological questions that are a high priority of the U.S. Geological Survey Alaska Science Center, sister agencies within the Department of the Interior (DOI), and various...
Q&A: USGS and 2024 the Anchorage Bike to Work Day
For the May 17, 2024, Anchorage Bike to Work Day , the USGS Alaska Science Center will again host a station along the Lanie Fleischer Chester Creek Trail where people can learn about the USGS streamgage on the creek and about the common birds of Chanshtnu. Chester Creek or Chanshtnu, which means ‘grass creek’ in the Dena’ina language, runs for about 20 miles from the Chugach mountains in the...
Q&A: Improving Aerial Surveys of Geese in Alaska with Aerial Imagery
Thousands of geese gather at Izembek Lagoon in southwestern Alaska every fall where they “stage”, meaning that they rest and eat in preparation for migration to lower latitudes. Izembek Lagoon is especially important for Pacific brant geese, as the entire Pacific Flyway population is thought to use the lagoon in fall. This provides an opportunity to efficiently survey the population to track...
TrendPowerTool: A web lookup tool for estimating the statistical power of a monitoring program to detect population trends
A simulation-based power analysis can be used to estimate the sample sizes needed for a successful monitoring program, but requires technical expertise and sometimes extensive computing resources. We developed a web-based lookup app, called TrendPowerTool, to provide guidance for ecological monitoring programs when resources are not available for a simulation-based power analysis (Fig. 1)...
Monarch Conservation Science Partnership Map Viewer and Tools
This web mapping application is a repository for data and tools that support the Monarch Conservation Science Partnership.
Monarch Conservation Science Partnership
The Challenge Over the last two decades, the Eastern migratory population of monarch butterflies has declined by about 80%, leading many scientists to consider how to best conserve and rebuild monarch populations. Conservation efforts can be challenging to design and execute because of the multi-generational migration of monarchs that spans North America. Conservationists must consider many...
USGS Alaska Science Center Ecosystems Analytics Program
The USGS Alaska Science Center Ecosystems Analytics program is a group of quantitative biologists and research statisticians who provide analytical support to USGS scientists to answer challenging ecological topics and management questions for USGS partners.
Semipalmated Sandpipers with leg bands or leg bands plus flag
Semipalmated Sandpipers with A) Leg bands only (no flag), or B) leg bands plus flag From: Leg flags do not affect shorebird nests: https://doi.org/10.1111/jofo.12264
Semipalmated Sandpipers with A) Leg bands only (no flag), or B) leg bands plus flag From: Leg flags do not affect shorebird nests: https://doi.org/10.1111/jofo.12264
Photo equipment used for fall staging migratory geese
Photo equipment used to take pictures of fall staging migratory geese at Izembek Lagoon, Alaska. Scientists from the USGS Alaska Science Center and the U.S.
Photo equipment used to take pictures of fall staging migratory geese at Izembek Lagoon, Alaska. Scientists from the USGS Alaska Science Center and the U.S.
Channels and mudflats of Izembek Lagoon, Alaska
Channels and mudflats of Izembek Lagoon, Alaska, taken from a USFWS survey aircraft. Photo Courtesy of U.S. Fish and Wildlife Service, Public Domain. Dennis Marks USFWS photographer.
Channels and mudflats of Izembek Lagoon, Alaska, taken from a USFWS survey aircraft. Photo Courtesy of U.S. Fish and Wildlife Service, Public Domain. Dennis Marks USFWS photographer.
Eunbi Kwon holding a Western Sandpiper, Nome, Alaska
Eunbi Kwon, a PhD student at Kansas State University at that time, researching the breeding ecology of shorebirds breeding at Nome as part of the Arctic Shorebird Demographics Network collaboration. The bird was marked to allow it to be individually identified when it returned to the study area.
Eunbi Kwon, a PhD student at Kansas State University at that time, researching the breeding ecology of shorebirds breeding at Nome as part of the Arctic Shorebird Demographics Network collaboration. The bird was marked to allow it to be individually identified when it returned to the study area.
Red-necked Phalarope hatchlings, Prudhoe Bay, Alaska
Red-necked Phalarope hatchlings (chicks). The photo was taken at Prudhoe Bay, Alaska as part of nest-monitoring research.
Red-necked Phalarope hatchlings (chicks). The photo was taken at Prudhoe Bay, Alaska as part of nest-monitoring research.
Science and Products
Ecosystems Analytics
Ecosystems Analytics is a group of quantitative biologists and research statisticians with a diverse range of expertise and experience (summarized below). We collaborate with internal and external partners to answer challenging ecological questions that are a high priority of the U.S. Geological Survey Alaska Science Center, sister agencies within the Department of the Interior (DOI), and various...
Q&A: USGS and 2024 the Anchorage Bike to Work Day
For the May 17, 2024, Anchorage Bike to Work Day , the USGS Alaska Science Center will again host a station along the Lanie Fleischer Chester Creek Trail where people can learn about the USGS streamgage on the creek and about the common birds of Chanshtnu. Chester Creek or Chanshtnu, which means ‘grass creek’ in the Dena’ina language, runs for about 20 miles from the Chugach mountains in the...
Q&A: Improving Aerial Surveys of Geese in Alaska with Aerial Imagery
Thousands of geese gather at Izembek Lagoon in southwestern Alaska every fall where they “stage”, meaning that they rest and eat in preparation for migration to lower latitudes. Izembek Lagoon is especially important for Pacific brant geese, as the entire Pacific Flyway population is thought to use the lagoon in fall. This provides an opportunity to efficiently survey the population to track...
TrendPowerTool: A web lookup tool for estimating the statistical power of a monitoring program to detect population trends
A simulation-based power analysis can be used to estimate the sample sizes needed for a successful monitoring program, but requires technical expertise and sometimes extensive computing resources. We developed a web-based lookup app, called TrendPowerTool, to provide guidance for ecological monitoring programs when resources are not available for a simulation-based power analysis (Fig. 1)...
Monarch Conservation Science Partnership Map Viewer and Tools
This web mapping application is a repository for data and tools that support the Monarch Conservation Science Partnership.
Monarch Conservation Science Partnership
The Challenge Over the last two decades, the Eastern migratory population of monarch butterflies has declined by about 80%, leading many scientists to consider how to best conserve and rebuild monarch populations. Conservation efforts can be challenging to design and execute because of the multi-generational migration of monarchs that spans North America. Conservationists must consider many...
USGS Alaska Science Center Ecosystems Analytics Program
The USGS Alaska Science Center Ecosystems Analytics program is a group of quantitative biologists and research statisticians who provide analytical support to USGS scientists to answer challenging ecological topics and management questions for USGS partners.
The USGS Alaska Science Center Ecosystems Analytics program is a group of quantitative biologists and research statisticians who provide analytical support to USGS scientists to answer challenging ecological topics and management questions for USGS partners.
Semipalmated Sandpipers with leg bands or leg bands plus flag
Semipalmated Sandpipers with A) Leg bands only (no flag), or B) leg bands plus flag From: Leg flags do not affect shorebird nests: https://doi.org/10.1111/jofo.12264
Semipalmated Sandpipers with A) Leg bands only (no flag), or B) leg bands plus flag From: Leg flags do not affect shorebird nests: https://doi.org/10.1111/jofo.12264
Photo equipment used for fall staging migratory geese
Photo equipment used to take pictures of fall staging migratory geese at Izembek Lagoon, Alaska. Scientists from the USGS Alaska Science Center and the U.S.
Photo equipment used to take pictures of fall staging migratory geese at Izembek Lagoon, Alaska. Scientists from the USGS Alaska Science Center and the U.S.
Channels and mudflats of Izembek Lagoon, Alaska
Channels and mudflats of Izembek Lagoon, Alaska, taken from a USFWS survey aircraft. Photo Courtesy of U.S. Fish and Wildlife Service, Public Domain. Dennis Marks USFWS photographer.
Channels and mudflats of Izembek Lagoon, Alaska, taken from a USFWS survey aircraft. Photo Courtesy of U.S. Fish and Wildlife Service, Public Domain. Dennis Marks USFWS photographer.
Eunbi Kwon holding a Western Sandpiper, Nome, Alaska
Eunbi Kwon, a PhD student at Kansas State University at that time, researching the breeding ecology of shorebirds breeding at Nome as part of the Arctic Shorebird Demographics Network collaboration. The bird was marked to allow it to be individually identified when it returned to the study area.
Eunbi Kwon, a PhD student at Kansas State University at that time, researching the breeding ecology of shorebirds breeding at Nome as part of the Arctic Shorebird Demographics Network collaboration. The bird was marked to allow it to be individually identified when it returned to the study area.
Red-necked Phalarope hatchlings, Prudhoe Bay, Alaska
Red-necked Phalarope hatchlings (chicks). The photo was taken at Prudhoe Bay, Alaska as part of nest-monitoring research.
Red-necked Phalarope hatchlings (chicks). The photo was taken at Prudhoe Bay, Alaska as part of nest-monitoring research.